情态动词

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情态动词must的用法

情态动词must的用法如下:must最基本的用法说是表示“必须”“一定要”,此时它可用于既可用于肯定句,也可用于否定句或疑问句。否定式mustn"t 的意思是“一定不要”“不能”,而不是“不必”,要表示“不必”,英语可用needn"t或don"t have to 之类的。must主要表示现在或将来,它没有相应的过去式;若要表示过去通常应用had to,不过在宾语从句中也可直接用must表示过去。对于must 开头一般疑问句,若要作否定回答,可用needn"t,不用mustn"t——因为mustn"t表示“不能”“不准”,用它来回答“我必须……吗”这类疑问句意思不匹配。must 对现在的推测若是表示对现在情况的推测,must后接动词原形。由于must表示推测时通常只用于肯定句,不用于否定句或疑问句,所以对于上面的句子,我们既不能直接把must移到句首将其变为疑问句,也不能直接在must后面加否定词not将其变为否定句,遇此情况,我们通常是借助情态动词can。若是表示对已发生的过去作推测,must后要接动词的完成式,即使用“must+have+过去分词”这样的形式。注意,凡是对已发生的过去情况作推测,情态动词后都必须要接完成式,must是如此,前面我们学习过的can, could, may, might也是如此——注意归纳,这就是规律!must表示推测时的意思是“一定”“肯定”,所以有的人就认为凡是遇到肯定推测时,就一定可以用must来翻译,那可不一定噢!must 表示对现在情况作推测时,其后所接的动词是有限的,并不是所有动词都可以这样用,能这样用的主要是一些状态动词,如be, have, know 等;若为动作动词,通常要转换其他说法。must有时可以一种不受欢迎的巧合,指某事发生得不早不迟,就在某个当紧的时候,通常含有不快、不满、心烦、恼火等感情色彩。

情态动词"can,must"有哪些用法,区别是什么?

一般这两比较好区分,意义上就可以区别。can是能够,而must则是必须,考must和haveto的情况比较多

情态动词must用法;否定祈使句

may和might1.表示许可。表示请求、允许时,might比may的语气更委婉一些,否定回答时(口语中常用)no,youcan"t.or,yes,please用mustn"t表示“不可以”、“禁止”、“阻止”之意(具有强烈禁止的意思)如:Youmaydrivethecar.你可以开这辆车。—MightIuseyourpen?—No,youmustn"t.—我可以用你的钢笔吗?—不,绝对不行。用MayI...征询对方许可在文体上比较正式,在口气上比较客气。在日常口语中,用CanI...征询对方意见在现代口语中更为常见。2.用于祈使句中表示祝愿。如:Mayyousucceed!祝你成功!3.表示推测、可能(疑问句不能用于此意)。Hemaybeverybusynow.他现在可能非常忙。4.“may(might)+have+过去分词”表示对过去发生的行为的推测。如:Hemaynothavefinishedthework.他可能没有完成工作。

情态动词:can may must的用法

一、can的用法aux.(助动词)1、can用作情态动词的基本意思是“能,能够”“可以”“可能,会”,可表示体力、智力能够完成一件事情或环境赋予的能力;也可表示由于环境或其他因素而产生的可能性,用于疑问句或否定句中;还可表示环境、条件或法律的许可。can也可表示要求、拜托、请求、惊讶等。2、can可与实义动词搭配,构成动词性合成谓语,表示“能力”;也可用在否定句或疑问句中,与be、进行式的动词或完成式的动词搭配,是对现在或过去的推测,表示“绝不可能”“难道…吗?”。can与表示知觉的动词搭配使用时,通常不用于进行体。3、can的否定式can"t或cannot表示智力或体力不够、不可能或禁止。二、may的用法aux.(助动词)1、may是个情态动词,无不定式和分词形式,第三人称单数现在时也无变化。表示否定缩写为mayn"t[ment]。2、may可表示可能性,意为“可能,也许”。它后面可接不定式的完成式或进行式表示“或许已经,或许正在〔将要〕”等。may用在祈使句中加动词原形,可表示祝愿。3、may用在目的状语从句中作“(以便)能;(使…)可以”;用在让步状语从句中作“不管;不论;尽管”解。三、must的用法aux.(助动词)1、must表示义务或强制,含意是“必须”“应当”;其否定结构表示“不许可”或“不应该”;用于一般疑问句时,表示征求对方的意见,其肯定答语用Yes,please或I"mafraidso,否定答语用needn"t或don"thaveto; must在间接引语中表过去。2、must表示必然性,一般只用于肯定句中,有时表示“意愿”,带有感情色彩。3、must表示推测,暗含很大的可能性,一般只用于肯定句中,在否定句中表示推测用can"t而不能用mustn"t。

do will的助动词和情态动词

will当助动词时,无实意,后加动词原形构成将来时.结构是:主+will+do+宾. 它不随主语变化而变化,在助动词中,它只有will一种形式.字典里没有关于情态动词的解释是因为它当情态动词讲是用它的过去式 would. will当情态动词时,只用它的过去式would来使用,译为“愿意”.结构为:would+主+like+to+do+宾. 固定搭配为:Would you like to ---.译为 你愿意做---吗?表情求,同样不随主语变化而变化.关于would,看看这个你会更明白: would [wud, wu0259d, u0259d, d] v. aux. (will 的过去式) [表示过去将来时, 用于第二、三人称](第一人称英国用 should, 美国用 would) 将, 会 He said he would come. 他说他要来. [表示意愿]愿; 偏要, 肯 He would eat nothing. 他不肯吃东西; 他什么也不愿吃. I told him not to go, but he would not listen. 我叫他别去, 可他偏不听 . He would go in spite of our warnings. 他不听我们的劝告, 执意要去. [表示过去的习惯动作]常常, 总是 He would sit for hours doing nothing. 过去他常常 坐几个钟头什么事也不做. He would come to see us on Sundays. 过去星期天他经常来看望我们. [表示推测]大概, 该是 I would be about ten when my brother left home. 我哥哥离开家时, 我大概十岁左右 . [表示某种假设的意志]想要, 愿意 I could do so if I would. 要是我愿意, 我能够这样做(但我不愿意). If you would do this for me, I should be grateful indeed. 若是你愿意为我做这件事, 我将万分感激 . [表示虚拟, 假设, 虚 构, 用于虚拟条件句的主句第二、第三人称, 美国也用于第一人称]要, 会, 就会, 将要 They would be killed if the car went over the cliff. 如果汽车翻在悬崖下, 他们就会丧命. They would have been killed if the car had gone over the cliff. 如果汽车当时翻到悬崖下, 他们早就丧命了. [表示请求或个人想法、看法, 使语气更婉转]请 Would you kindly show me the way to the station? 劳驾, 请问到车站的路怎么走? I would like to speak a few words. 我想讲几句话. It would seem that he was right. 看来他倒是对的. [表示假想的愿望]但愿, 要是...多好 Would [I would] that they were safe home again! 愿他们再能平安回家 ! Would that I were young again. 我若能再年青些该多好啊! We wish that he would come again. 我们但愿他会再来 . I would rather you came on Sunday. 希望你星期天来 . [表示能力](=could) 能 The barrel would hold 100 litres. 这桶能装一百升 . 习惯用语 wouldrather [sooner]...than 宁愿, 宁可...也不 wouldrather do sth. 倒更希望, 更喜欢

解答高考英语试题。 情态动词+have done

1. c 2. b 3. d

taught是情态动词吗?

"Taught" 是过去式和过去分词形式的 "teach",而 "teach" 不是情态动词。情态动词是指能够表示说话者对动作或状态的观点、愿望或请求的动词,如 "can," "could," "may," "might," "must," "shall," "should," "will," "would" 等。这些动词一般不能独立作谓语,而是和主语一起构成谓语。例如:I can swim.(我会游泳。)She may come.(她可能会来。)He should finish his homework.(他应该完成作业。)而 "teach" 是一个普通动词,它可以独立作谓语,表示 "教" 的意思。

let属于情态动词吗

let不是情态动词,是使役动词。Let,英语单词,及物动词、不及物动词、名词,作及物动词时意为“允许,让;出租;假设;妨碍”,作不及物动词时意为“出租;被承包”,作名词时意为“障碍;出租屋,人名;(缅)莱;(俄)莱特”。单词发音:英式发音[let],美式发音[let]。要点详解:1.let的基本意思是允许对方照其意思而行,引申可表示“出租”“放掉,松掉”等。用于数学中通常表示“假设”。2.let可用作不及物动词,也可用作及物动词。用作及物动词作“出租”解时,可接名词或代词作宾语,也可接双宾语。其间接宾语可以转化为介词to的宾语;作“让、使”解时,通常接以形容词或不带to的动词不定式充当补足语的复合宾语;接动词不定式作宾语补足语时,如用于被动结构, to须保留。let还可接不带to的动词不定式作宾语,这时主要用于某些固定搭配中。3.let用作不及物动词时主要表示“出租”,主语通常为物(如房子等),其主动形式含有被动意义。4.在口语中,let常用于祈使句中表示建议、请求、命令、警告等;在书面语中,可用allow代替let。双语例句:1.I"m blowed if I"m going to let him treat you like that.我绝不会允许他那么对待你。2.Let me just go back to the point I was making.请允许我再回到我刚才所提的观点。3.Let"s take the problems in a different order.咱们换一个顺序来处理这些问题吧。4.Let"s be practical and work out the cost first.咱们实际一点儿,先计算一下成本费用。5.Let"s attack one problem at a time.咱们一次全力处理一个问题。6.I"m not going to let them get one over on me!我决不让他们胜过我!7.It is important not to let things get out of perspective.重要的是不要把事情轻重倒置。8.Let us approach the subject from a different direction.咱们从一个不同的角度来探讨这个题目吧。

英语中情态动词是什么意思

情态动词(Modal verbs)本身有一定的词义,表示语气的单词。但是不能独立作谓语,只能和动词原形一起构成谓语。情态动词用在行为动词前,表示说话人对这一动作或状态的看法或主观设想。 情态动词虽然数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not.

seems.是情态动词吗

不是。是个系动词,也属于不及物动词。

情态动词后面跟动词的原形,如果前面是第三人称 ,后面要不要跟三单形式 请举例说明 急急急

不用

maybe是不是情态动词

maybe不是情态动词,它是一个副词。副词(Adverb)是一类用来修饰动词、形容词、其他副词或整个句子的词汇。它们通常用来描述或限定动作、状态或描述性的词语,以增添更多的信息、细节或程度。副词在句子中的位置可以灵活变化,通常放在要修饰的动词、形容词或其他副词之前或之后。"Maybe"用来表示一种不确定的可能性或推测,常用于句子中,表达一种或许会发生或存在的情况。情态动词(modal verbs)是一类特殊的动词,包括can(能够)、could(可以、能够)、may(可能)、might(可能)、shall(将、应该)、should(应该)、will(将要)、would(将、愿意)、must(必须)等。这些动词用来表示说话人对某个动作或状态的态度、推测、意愿、能力、许可或义务。情态动词常用于提问和提供建议。例如,"can" 用于询问是否有能力做某事,"could" 用于提供礼貌的请求。这有助于有效的沟通和交流。情态动词还可以表示某人的义务和必要性。例如,"must" 表示必须,"should" 表示应该。通过使用这些情态动词,说话者可以强调某种责任或义务。情态动词重要性情态动词在英语中扮演着重要的角色,它们对于表达说话者的态度、推测、意愿、能力、许可或义务等具有关键作用。情态动词可以帮助说话者表达对某个动作或状态的态度和情感。例如,"can" 表示能力,"should" 表示建议,"must" 表示必须。通过使用适当的情态动词,说话者可以传达自己对事物的看法和态度。情态动词用来表示对某件事情的可能性和推测。例如,"might" 表示可能性,"could" 表示能力和可能性,"may" 表示可能性和允许。这样,说话者可以对不确定的情况进行猜测或假设。情态动词可以表示某人的能力或某事的许可。例如,"can" 表示能力,"may" 表示许可。通过这些情态动词,说话者可以表达自己或他人的能力和权限。

什么是情态动词?

1.情态助动词包括will,would,shall,should,can,could,may,might,must,need,dare,ought to,used to等,后接原形不定式。2.情态助动词不受主语的人称和数的限制。3.两个情态助动词不能连用。快采纳哟,不明还可以追问的,嘻嘻!

语法重点之五:情态动词

谈谈情态动词(modal verbs)(一) 我们常见的英文动词有:及物动词(transtive verbs)、不及物动词(intranstive verbs)、助动词(axiliary verbs)、联系动词(link verbs /copula)和情态动词(modal verbs)。其他还有:非谓语动词,如:动词不定式、动名词。 这回我们就来谈谈情态动词(modal verbs 注意modal 不是 model 喔)。 * 情态动词也可称为"情态助动词 (modal auxiliaries)",因为它和基本助动词(be, do, have)都属于助动词类。 * 情态动词和其他动词连用,可表示说话人的语气。 * 情态动词可表达建议、要求、可能和意愿等。 * 情态动词没有人称和数的变化。 * 常用的情态动词有:can, could, may, might, must, shall, should, will, would 这九大情态动词;其他的还有ought to, need, dare 等。 其实我们这里谈的情态动词,它的特征用法,有许多方面和助动词是一样的(请参阅 《英文语法拉杂谈》助动词);但为了方便阅读,因此即使相同的部份,这里也同样列 出。 一、情态动词的变化:(情态动词could,动词 to work) 1.1 简单型(simple):表示现在或将来的状态  i could work (动词不可加 to ,如:to work。下同)  you could work  he could work  she could work  it could work  we could work  they could work 1.2 完成式型 (perfect):表示过去的状态  i could have worked (动词是 have + v-ed 过去分词。下同)  you could have worked  he could have worked  she could have worked  it could have worked  we could have worked  they could have worked 1.3 进行式型 (continuous):表示现在或将来还在进行的状态  i could be working (动词是be + v-ing 现在分词。下同)  you could be working  he could be working  she could be working  it could be working  we could be working  they could be working 1.4 完成进行式型 (perfect continuous):表示过去正在进行的状态  i could have been working (动词是 have been + v-ing 现在分词。下同)  you could have been working  he could have been working  she could have been working  it could have been working  we could have been working  they could have been working 二、情态动词的疑问句: 只要将情态动词移到主语(subject)的前面,句尾加上问号。这样就成了疑问句。 1. she can work.(主语she, 情态动词 can,动词 work)   can she work ? (这就是疑问句) 2. he would be working. (主语he, 情态动词 would,动词 be working)   would he be working ? 3. they should have worked. (主语they, 情态动词should, 动词have worked)   should they have worked ? 4. i could have been working. (主语 i, 情态动词 could, 动词 have been working)   could i have been working ? 三、情态动词的否定句: 在情态动词的后面加上 not 就成了情太动词否定句。 1. she can work.   she cannot work. (注意:can 和 not 须连在一起)(这就是否定句) 2. he would be working.   he would not be working. (would not) 3. they should have worked.    they should not have worked. (should not) 4. i could have been working.    i could not have been working. (could not) 四、在口语中,否定情态动词的缩写法: 1. cannot ---- canu2019t 2. could not ---- couldnu2019t 3. might not ---- mightnu2019t (很少用) 4. must not ---- mustnu2019t 5. shall not ---- shanu2019t (几乎没人用了) 6. should not ---- shouldnu2019t 7. will not ---- wonu2019t (可不是 winu2019t 喔!) 8. would not ---- wouldnu2019t 五、情态动词的否定疑问句: 将否定情态动词移到主语的前面,就成了否定疑问句。 1. can she not work ? 或 canu2019t she work ? (看出有什么不同吗?小心看看喔) 2. would he not be working ? 或 wouldnu2019t he be working ? 3. should they not have worked ? 或 shouldnu2019t they have worked ? 4. could i not have been working ? 或 couldnu2019t i have been working ? 六、情态动词的反问句 : 看看下面的例子就明白啦,呵呵。 1. she can work. 反问句:she can work, canu2019t she ? 2. he would be working. 反问句:he would be working, wouldnu2019t he ? 3. they should have worked. 反问句:they should have worked, shouldnu2019t they ? 4. i could have been working. 反问句:i could have been working, couldnu2019t i ? 就谈这些了,但我们还未进入正题哩,哎呀呀…… 谈谈情态动词(modal verbs)(二) 上回在谈到情态动词的变化中,只举了以情态动词 could 为例子的变化。其他的情态 动词(would, should, might...)都可依此类推。 七、九大情态动词的时态关系 : 1.  现在式 can -- 过去式 could 2.  现在式 may -- 过去式 might 3.  现在式 shall -- 过去式 should 4.  现在式 will -- 过去式 would 5.  现在式 must -- 过去式 must (其实must 和 ought 都是没有时态的) 八、情态动词的用法:表示"可能"或"预测"   (can,could,will,would,shall,should,must,ought to) 8.1  can 和 could 用于表示"可能"或"预测": 1. he canu2019t be at home. (否定句)   他不可能在家。 2. can the news be true ? (将情态动词 can 置于主语 the news 前就成疑问句)   这消息可能是真的吗? 3. anybody can make mistake. (只表示理论上的可能性)   任何人都可能犯错误。 4. at that time we thought the story could not be true. (表示过去的可能性)   那时我们认为所说的故事不可能是真的。 5. an accident can happen if you do this. (表示事情肯定会发生)   如果你这样做,可能会发生意外。 8.2 may 和 might 用于表示"事实上的可能性"或"预测": 1. it may rain tomorrow. (表示可能会发生)   明天可能会下雨。 2. it may snow later this afternoon. (表示预测)   今天下午可能会下雪。 3. you might be right. (表示有可能)   你可能是对的。 4. it is possible he may have called while we were out. (现在完成式型may have called)   当我们出门后,他有可能会打电话来。 5. sam might have taken the money, but it seems unlikely. (过去完成式型 might have taken)   钱可能会是sam拿走的,但又不太像。 6. if you took some exercise, you might not be so fat. (might 用于条件句)   要是你锻炼锻炼,可能不会这样胖。 7. electric irons could be dangerous; they might give you a severe shock. (这里的might表示可能性比may 小一些)   电熨斗会有危险的,它可能使你受到严重的电击。 8.3 will 和 would 用于表示"预测"或"习惯性": 1. i think he will be all right now. (will be 表示一定会)   我想他现在一定好了。 2. that would be his mother. (would be 表示肯定是)   那肯定是他母亲。 3. he will sit there hour after hour looking at the river. (will 表示经常 的)    他经常一连几个小时坐在那儿看着河水。 4. he would come to see me when he was in london. (would 表示习惯地)    他在伦敦时,常来看望我。 8.4 shall 和 should 用于表示"必定": 1. i shall be rich one day. (shall be )   总有一天我发达的。 2. that should be sam and his mother. (should be)   那准是sam 和他的母亲。 8.5 must 用于表示"必定","必会": 1. this must be good for you. (must be 肯定)   这肯定对你是有益的。 2. all mankind must die. (表示必然会发生的事)    所有的人一定会死的。 3. mustnu2019t there be a mistake ? (mustnu2019t 多用于疑问句)    那肯定会有错误吗? 8.6 ought to 用于表示"想必会"(语气较must 弱): 1. they ought to be there by now.   他们想必已到那儿了。 2. he ought to stop smoking.    他最好不要抽烟了。 由于情态动词也是一个难缠的东东,写得好乱,真没办法 :-( 谈谈情态动词(modal verbs)(三) 九、情态动词的用法:表示"许可"、"请求"   (can, could, will, would, shall, should, may, might, must) 9.1 can 和 could 用于表示"许可"、"请求": 1. can i go with you ? (请求)   我能跟你一起走吗? 2. father said i could go to cinema. (表示过去的许可)   爸爸说我可以去看电影。 3. could i ask you something ? (请求,用 could 比 can 更婉转)   我可以问你一件事吗? 4. you can come in. (表示允许,常见于口语)   你可以进来。 5. you cannot smoke in the meeting room. (cannot 表示"禁止")   会议室里不许吸烟。 6. canu2019t you do it now ? (表示反问)   你不能现在做吗? 9.2 will 和 would 用于表示"请求" 1. will you kindly tell me the way to the post office ? (表示客气请求)   请问到邮局怎么走? 2. would you give me your address ? (用 would 比 will 表示更客气)   请你告诉我你的地址,好吗? 9.3 shall 和 should 用于第一人称,表示征求对方的意见 1. shall we talk?   我们谈谈好吗? 2. what should we do next ? (用should 比 shall 表示更客气)   下一步我们该怎么做? 3. shall he come to see you ? (用于第三人称疑问句)   要不要他来看你? 9.4 may 和 might 用于表示"许可"(口语中多用 can ) 1. you may take a walk. (表示给予许可)   你可以散散步。 2. you might read the story for me. (比may更婉转)   是否请给我读一读这故事。 3. may i make a suggestion ?    我可以提个建议吗? 4. might i take a look of your work ?   我看看您的大作行吗? 5. students may not make noise in the library. (may not 表示不许可或禁止)   学生不得在图书馆里吵闹。 6. if i may say so, you are not right. (用于条件句,表示请求)   你是不对的,如果我可以这么说的话。 9.5 must 用于表示"禁止","不准": 1. cars must not be parked here. (must not表示不许可)   此地不准停车。 2. all of you mustnu2019t fishing in the pool. (must not 语气方面比 may not 更 强)   你们不准在池里钓鱼。 各位看官,看完给个意见吧,may you? 谈谈情态动词(modal verbs)(四) 十、情态动词的用法:表示“应该”、“必须”   (shall, should, may, might, must, ought to) 10.1 shall 和 should 用于表示“必须”: 1. each member shall wear a name card. (表示规定)   每一个会员必须配带名卡。 2. i should answer his letter as soon as possible. (表示应该)   我应该尽快给他回信。 3. you shouldnu2019t judge a man always by the clothes. (shouldnu2019t “不应该”含 有劝告的意思)   你不应该总是以貌取人。 4. the rules shall take effect on jan. 1st. (shall 用于规章等,表示义务和 规定)   新规则于一月一日起生效。 10.2 may 和 might 用于表示“应该"(多用于法律等条文,一般上多用 shall ): 1. payment may be paid by check. (表示规定)   应以支票付款。 2. you might ask before you use my computer. (might表示应该)   你应该先问过再使用我的电脑。 10.3 must 用于表示“必须”、“务必”: 1. you must keep the place clean. (务必)   你务必保持地方干净。 2. we must obey orders. (表示有义务)   我们必须服从命令。 3. must i pay now ? (用于疑问句) (如回答不必时,需用 neednu2019t 或 donu2019t have to)   我现在就得付款吗? 10.4 ought to 用于表示“应该”(强调客观上):(大多情况可用 should 代替) 1. you ought to go to see the doctor. (ought to 的语气比must 弱)   你应该去看看医生。 2. you oughtnu2019t (ought not) to smoke so much. (oughtnu2019t 用于否定句)   你不应该抽这么多烟。 3. ought you to smoke so much? (用于疑问句)   你应该抽这么多烟吗? 不知怎的,总觉得有点意兴阑珊。再见吧。 谈谈情态动词(modal verbs)(五) 十一、 情态动词的用法:表示“意图”、“打算” (will, would, shall, should) 11.1 will 和 would 用于表示某种意图: 1. iu2019ll will call you as soon as possible. (will 主要用于第一人称)   我会尽快打电话给你。 2. will you accept this invitation ? (用would 则表示得客气)    你愿意接受这邀请吗? 3. who will do the job ? (用于条件句,可用于各种人称)    谁愿意做这事? 4. we wonu2019t (will not) stay here too long. (will not 表示不愿)   我们不愿呆在这里太久。 11.2 shall 和 should 用于表示说话人的意图: 1. we shanu2019t (shall not) to if it rains. (shall not 也可用 will not)   如果下雨,我们就不打算走了。 2. i shanu2019t go with you. (shall 只用在第一人称)   我不打算和你一同走。 十二、 情态动词的用法:表示“意愿”    (will, would, shall, should) 12.1 will 和 would : 1. she will do it if you ask her. (表示主语的意愿)    如果你问她,她会做的。 2. would you have another cup of tea ? (用 would 比 will 客气)    你想再来一杯茶吗? 3. will you have some cookies ? (will 用于疑问句,表示问人是否愿意)   你想吃些烤饼吗? 4. if he will he can do it. (will 用于条件句,用于第二、三人称)   如果他愿意,他会做的。 5. would you excuse me ? (would 表示婉转语气)   你能原谅我吗? 12.2 shall 和 should : 1. he shall get his allowance. (注意是he shall, 表示说话人的意愿)    他会拿到他的津贴的。 2. you should sit here as long as you like.    只要你乐意,坐多久能行。 3. shall you go to school with me ? (疑问句中,表示问对方的意愿)    你愿意和我一起到学校去吗? 十三、情态动词的用法:表示“决心”    (will, would, shall, would) 13.1  will 和 would : 1. i will stop smoking. (will 表示主语 i 的决心。不能用 iu2019ll)    我决心戒烟了。 2. he will come whenever you say. (will 表示主语he 一定会做)    你什么时候说,他一定会来的。 3. he would not let me try .    他不肯让我去试。 4. if you will go, you may go at once. (用于条件句,用于第二、三人称)    如果你非走不可,你可以马上就走。 13.2 shall 和 should : 1. you shall complete your lesson. (shall 表示说话人的决心。shall 须重读)    你应该完成你的课程。 2. no one shall stop me. (shall 重读)    任何人也不能阻止我。 3. you shall obey chairman. (shall 用于肯定句。shall 重读。只能用于第二、三人称)    我要你服从主席。 情态动词就谈这些了。看看自己也觉得写得不太满意,目前也只能是这样了。

英语中什么是情态动词

谢谢你的回答。,生活中因为有你而变得意义非凡,奋斗中因为有你而变得异常精彩,我用全部的努力向你表示感谢,感谢你对我的关怀|真的太谢谢你了,简直是雪中送炭啊!

英文语法拉杂谈--情态动词

谈谈情态动词(Modal Verbs)(一)   我们常见的英文动词有:及物动词(Transtive Verbs)、不及物动词(Intranstive Verbs)、助动词(Axiliary Verbs)、联系动词(Link Verbs /Copula)和情态动词(Modal Verbs)。其他还有:非谓语动词,如:动词不定式、动名词。   这回我们就来谈谈情态动词(Modal Verbs 注意Modal 不是 Model 喔)。   * 情态动词也可称为"情态助动词 (Modal Auxiliaries)",因为它和基本助动词(be,do, have)都属于助动词类。   * 情态动词和其他动词连用,可表示说话人的语气。   * 情态动词可表达建议、要求、可能和意愿等。   * 情态动词没有人称和数的变化。   * 常用的情态动词有:can, could, may, might, must, shall, should, will, would这九大情态动词;其他的还有ought to, need, dare 等。   其实我们这里谈的情态动词,它的特征用法,有许多方面和助动词是一样的(请参阅《英文语法拉杂谈》助动词);但为了方便阅读,因此即使相同的部份,这里也同样列出。   一、情态动词的变化:(情态动词could,动词 to work)   1.1 简单型(Simple):表示现在或将来的状态   I could work (动词不可加 to ,如:to work.下同)   you could work he could work she could work it could work we could work they could work   1.2 完成式型 (Perfect):表示过去的状态   I could have worked (动词是 have + v-ed 过去分词。下同)   you could have worked he could have worked she could have worked it could have worked we could have worked they could have worked   1.3 进行式型 (Continuous):表示现在或将来还在进行的状态   I could be working (动词是be + v-ing 现在分词。下同)   you could be working he could be working she could be working it could be working we could be working they could be working   1.4 完成进行式型 (Perfect Continuous):表示过去正在进行的状态   I could have been working (动词是 have been + v-ing 现在分词。下同)   you could have been working he could have been working she could have been working it could have been working we could have been working they could have been working   二、情态动词的疑问句:   只要将情态动词移到主语(Subject)的前面,句尾加上问号。这样就成了疑问句。   1. She can work.(主语she, 情态动词 can,动词 work)   Can she work ? (这就是疑问句)   2. He would be working. (主语he, 情态动词 would,动词 be working)   Would he be working ?   3. They should have worked. (主语they, 情态动词should, 动词have worked)   Should they have worked ?   4. I could have been working. (主语 I, 情态动词 could, 动词 have been working)   Could I have been working ?   三、情态动词的否定句:   在情态动词的后面加上 not 就成了情太动词否定句。   1. She can work. She cannot work. (注意:can 和 not 须连在一起)(这就是否定句)   2. He would be working. He would not be working. (would not)   3. They should have worked. They should not have worked. (should not)   4. I could have been working. I could not have been working. (could not)   四、在口语中,否定情态动词的缩写法:   1. cannot —— can"t 2. could not —— couldn"t 3. might not —— mightn"t (很少用)   4. must not —— mustn"t 5. shall not —— shan"t (几乎没人用了)   6. should not —— shouldn"t 7. will not —— won"t (可不是 win"t 喔!)   8. would not —— wouldn"t   五、情态动词的否定疑问句:   将否定情态动词移到主语的前面,就成了否定疑问句。   1. Can she not work ? 或 Can"t she work ? (看出有什么不同吗?小心看看喔)   2. Would he not be working ? 或 Wouldn"t he be working ?   3. Should they not have worked ? 或 Shouldn"t they have worked ?   4. Could I not have been working ? 或 Couldn"t I have been working ?   六、情态动词的反问句:   看看下面的例子就明白啦,呵呵。   1. She can work. 反问句:She can work, can"t she ?   2. He would be working. 反问句:He would be working, wouldn"t he ?   3. They should have worked. 反问句:They should have worked, shouldn"t they ?   4. I could have been working. 反问句:I could have been working, couldn"t I ?   就谈这些了,但我们还未进入正题哩,哎呀呀……   谈谈情态动词(Modal Verbs)(二)   上回在谈到情态动词的变化中,只举了以情态动词 could 为例子的变化。其他的情态动词(would, should, might……)都可依此类推。   七、九大情态动词的时态关系:   1.  现在式 can —— 过去式 could 2.  现在式 may —— 过去式 might 3.  现在式 shall —— 过去式 should 4.  现在式 will —— 过去式 would 5.  现在式 must —— 过去式 must (其实must 和 ought 都是没有时态的)   八、情态动词的用法:表示"可能"或"预测"(Can,Could,Will,Would,Shall,Should,Must,Ought to)   8.1  can 和 could 用于表示"可能"或"预测":   1. He can"t be at home. (否定句)   他不可能在家。   2. Can the news be true ? (将情态动词 can 置于主语 the news 前就成疑问句)   这消息可能是真的吗?   3. Anybody can make mistake. (只表示理论上的可能性)   任何人都可能犯错误。   4. At that time we thought the story could not be true. (表示过去的可能性)   那时我们认为所说的故事不可能是真的。   5. An accident can happen if you do this. (表示事情肯定会发生)   如果你这样做,可能会发生意外。   8.2 may 和 might 用于表示"事实上的可能性"或"预测":   1. It may rain tomorrow. (表示可能会发生)   明天可能会下雨。   2. It may snow later this afternoon. (表示预测)   今天下午可能会下雪。   3. You might be right. (表示有可能)   你可能是对的。   4. It is possible he may have called while we were out. (现在完成式型may have called)   当我们出门后,他有可能会打电话来。   5. Sam might have taken the money, but it seems unlikely. (过去完成式型might have taken)   钱可能会是Sam拿走的,但又不太像。   6. If you took some exercise, you might not be so fat. (might 用于条件句)   要是你锻炼锻炼,可能不会这样胖。   7. Electric irons could be dangerous; they might give you a severe shock.(这里的might表示可能性比may 小一些)   电熨斗会有危险的,它可能使你受到严重的电击。   8.3 will 和 would 用于表示"预测"或"习惯性":   1. I think he will be all right now. (will be 表示一定会)   我想他现在一定好了。   2. That would be his mother. (would be 表示肯定是)   那肯定是他母亲。   3. He will sit there hour after hour looking at the river. (will 表示经常的)   他经常一连几个小时坐在那儿看着河水。   4. He would come to see me when he was in London. (would 表示习惯地)   他在伦敦时,常来看望我。   8.4 shall 和 should 用于表示"必定":   1. I shall be rich one day. (shall be )   总有一天我发达的。   2. That should be Sam and his mother. (should be)   那准是Sam 和他的母亲。   8.5 must 用于表示"必定","必会":   1. This must be good for you. (must be 肯定)   这肯定对你是有益的。   2. All mankind must die. (表示必然会发生的事)   所有的人一定会死的。   3. Mustn"t there be a mistake ? (mustn"t 多用于疑问句)   那肯定会有错误吗?   8.6 ought to 用于表示"想必会"(语气较must 弱):   1. They ought to be there by now.他们想必已到那儿了。   2. He ought to stop smoking.他不要抽烟了。   由于情态动词也是一个难缠的东东,写得好乱,真没办法 :-(   谈谈情态动词(Modal Verbs)(三)   九、情态动词的用法:表示"许可"、"请求"(Can, Could, Will, Would, Shall, Should, May, Might, Must)   9.1 can 和 could 用于表示"许可"、"请求":   1. Can I go with you ? (请求)   我能跟你一起走吗?   2. Father said I could go to cinema. (表示过去的许可)   爸爸说我可以去看电影。   3. Could I ask you something ? (请求,用 could 比 can 更婉转)   我可以问你一件事吗?   4. You can come in. (表示允许,常见于口语)   你可以进来。   5. You cannot smoke in the meeting room. (cannot 表示"禁止")   会议室里不许吸烟。   6. Can"t you do it now ? (表示反问)   你不能现在做吗?   9.2 will 和 would 用于表示"请求"   1. Will you kindly tell me the way to the post office ? (表示客气请求)   请问到邮局怎么走?   2. Would you give me your address ? (用 would 比 will 表示更客气)   请你告诉我你的地址,好吗?   9.3 shall 和 should 用于第一人称,表示征求对方的意见   1. Shall we talk?   我们谈谈好吗?   2. What should we do next ? (用should 比 shall 表示更客气)   下一步我们该怎么做?   3. Shall he come to see you ? (用于第三人称疑问句)   要不要他来看你?   9.4 may 和 might 用于表示"许可"(口语中多用 can )   1. You may take a walk. (表示给予许可)   你可以散散步。   2. You might read the story for me. (比may更婉转)   是否请给我读一读这故事。   3. May I make a suggestion ?   我可以提个建议吗?   4. Might I take a look of your work ?   我看看您的大作行吗?   5. Students may not make noise in the library. (may not 表示不许可或禁止)   学生不得在图书馆里吵闹。   6. If I may say so, you are not right. (用于条件句,表示请求)   你是不对的,如果我可以这么说的话。   9.5 must 用于表示"禁止","不准":   1. Cars must not be parked here. (must not表示不许可)   此地不准停车。   2. All of you mustn"t fishing in the pool. (must not 语气方面比 may not 更强)   你们不准在池里钓鱼。   各位看官,看完给个意见吧,may you?   谈谈情态动词(Modal Verbs)(四)   十、情态动词的用法:表示“应该”、“必须”   (Shall, Should, May, Might, Must, Ought to)   10.1 Shall 和 Should 用于表示“必须”:   1. Each member shall wear a name card. (表示规定)   每一个会员必须配带名卡。   2. I should answer his letter as soon as possible. (表示应该)   我应该尽快给他回信。   3. You shouldn"t judge a man always by the clothes. (shouldn"t “不应该”含有劝告的意思)   你不应该总是以貌取人。   4. The rules shall take effect on Jan. 1st. (shall 用于规章等,表示义务和规定)   新规则于一月一日起生效。   10.2 May 和 Might 用于表示“应该"(多用于法律等条文,一般上多用 shall ):   1. Payment may be paid by check. (表示规定)   应以支票付款。   2. You might ask before you use my computer. (might表示应该)   你应该先问过再使用我的电脑。   10.3 Must 用于表示“必须”、“务必”:   1. You must keep the place clean. (务必)   你务必保持地方干净。   2. We must obey orders. (表示有义务)   我们必须服从命令。   3. Must I pay now ? (用于疑问句) (如回答不必时,需用 needn"t 或 don"t have to)   我现在就得付款吗?   10.4 Ought to 用于表示“应该”(强调客观上):(大多情况可用 should 代替)   1. You ought to go to see the doctor. (ought to 的语气比must 弱)   你应该去看看医生。   2. You oughtn"t (ought not) to smoke so much. (oughtn"t 用于否定句)   你不应该抽这么多烟。   3. Ought you to smoke so much? (用于疑问句)   你应该抽这么多烟吗?   不知怎的,总觉得有点意兴阑珊。再见吧。   谈谈情态动词(Modal Verbs)(五)   十一、 情态动词的用法:表示“意图”、“打算”   (will, would, shall, should)   11.1 will 和 would 用于表示某种意图:   1. I"ll will call you as soon as possible. (will 主要用于第一人称)   我会尽快打电话给你。   2. Will you accept this invitation ? (用would 则表示得客气)   你愿意接受这邀请吗?   3. Who will do the job ? (用于条件句,可用于各种人称)   谁愿意做这事?   4. We won"t (will not) stay here too long. (will not 表示不愿)   我们不愿呆在这里太久。   11.2 shall 和 should 用于表示说话人的意图:   1. We shan"t (shall not) to if it rains. (shall not 也可用 will not)   如果下雨,我们就不打算走了。   2. I shan"t go with you. (shall 只用在第一人称)   我不打算和你一同走。   十二、 情态动词的用法:表示“意愿”   (will, would, shall, should)   12.1 will 和 would :   1. She will do it if you ask her. (表示主语的意愿)   如果你问她,她会做的。   2. Would you have another cup of tea ? (用 would 比 will 客气)   你想再来一杯茶吗?   3. Will you have some cookies ? (will 用于疑问句,表示问人是否愿意)   你想吃些烤饼吗?   4. If he will he can do it. (will 用于条件句,用于第二、三人称)   如果他愿意,他会做的。   5. Would you excuse me ? (would 表示婉转语气)   你能原谅我吗?   12.2 shall 和 should :   1. He shall get his allowance. (注意是he shall, 表示说话人的意愿)   他会拿到他的津贴的。   2. You should sit here as long as you like.只要你乐意,坐多久能行。   3. Shall you go to school with me ? (疑问句中,表示问对方的意愿)   你愿意和我一起到学校去吗?   十三、情态动词的用法:表示“决心”   (will, would, shall, would)   13.1  will 和 would :   1. I will stop smoking. (will 表示主语 I 的决心。不能用 I"ll)   我决心戒烟了。   2. He will come whenever you say. (will 表示主语he 一定会做)   你什么时候说,他一定会来的。   3. He would not let me try .他不肯让我去试。   4. If you will go, you may go at once. (用于条件句,用于第二、三人称)   如果你非走不可,你可以马上就走。   13.2 shall 和 should :   1. You shall complete your lesson. (shall 表示说话人的决心。shall 须重读)   你应该完成你的课程。   2. No one shall stop me. (shall 重读)   任何人也不能阻止我。   3. You shall obey chairman. (shall 用于肯定句。shall 重读。只能用于第二、三人称)   我要你服从主席。

英语翻译 你可以把这只花瓶放在那只架子上面. 翻译成英文,用情态动词

you can put flower bottle on the sheet.

英语中祈使句可以用情态动词来引导吗?

一般没有时态变化,不合情态动词连用!!一、定义祈使句是英语的基本句型之一,表达说话人对对方的叮嘱、劝告、请求或命令等,往往有表示请求、命令、希望、禁止、劝告等意思。祈使句一般没有主语,实际上是省略了主语“You”。句末用感叹号或句号,用降调朗读。肯定结构都以动词原形开头。例如:Catch the ball!接球!(句子的意思是让“你”接球)Go and ask the teacher. 去问问老师。 句子的意思是让“你”去问老师。Put the books in your bag. 把书放到书包里。Come and meet my family. 来看看我家人。二、句型1. 祈使句的肯定句式有三种形式,即1)Do型(以行为动词原形开头),例如:Sit down 坐下! Stand up 起立!2)Be型(以be开头),例如:Be quiet 安静!3)Let型 (以let开头), 例如:Let me help you. 让我来帮助你。注意:三种句型中Do型是最常见、最简单的一种结构。表示请求、劝告的祈使句还常常在句前或句末加上Please, 构成句式:Please...或...Please. 以使语气更加缓和或客气。例如:Please Please stand .或Stand up, please.请站起来。Please have a rest.或Have a rest, please.请休息一下。2. 祈使句的否定结构是以“Don”t+动词原形”开头。例如:Don”t go there, please. 请别去那儿。Don”t be late. 不要迟到。Don”t let him in. 不要让他进来。Don”t let the water run into the room. 不要让水流进屋里。注意:Let”s型祈使句,其否定式也可用Let”s not...。如:Let”s not have rest. 咱们别休息了。

情态动词shall的用法归纳高中

Shall作为助动词,一般用于第一人称Ⅰ和We,表示一个将来的动作,构成将来时态。Shall后面接动词原形。 Shall用于第一人称,表示征求对方的意愿。 Shall用于第一、第三人称疑问句中,表示说话人征求对方的意见或向对方请示。 Shall用于第二、第三人称,表示说话人给对方命令、警告、允诺或威胁。 扩展资料   Shall we go for plan A or plan B?   我们采用第一方案还是第二方案?   Shall we go for a drink after work?   我们下班后去喝一杯好吗?   We shall be looking for an improvement in your work this term.   我们期待你这学期功课有进步。   We shall maintain our focus on the needs of the customer.   我们将继续重点关注顾客的需要。   I shall give the matter my personal attention.   我将亲自处理此事。

shall是情态动词还是助动词?

情态动词 表示征求意见

情态动词ing与ed的区别,就是类似embarrassing与embarrassed虽然知道一个是

do是动词,要用副词badly修饰

情态动词的用法归纳 高考英语情态动词考点解析

为了帮助大家更好地学习英语情态动词,我为大家整理了情态动词的基本用法,供参考! 英语的情态动词用法归纳 情态动词will与would的用法归纳 1. 表示意愿 will 表示现在的意愿,would表示过去的意愿。如: I will bring it tomorrow. 我明天会把它带来。 We will not go there again. 我们不会再去那里。 He asked if I would go to the cinema with him. 他问我是否愿同他一起去看电影。 If you will allow me, I will see you home. 如果你同意,我可以送你回家。 If you will come, we will be glad. 假如你能来的话,我们就会很高兴。 2. 表示征求意见或提出请求 will和would均可用,主要用于第二人称的疑问句中,would此时并不表过去,而表示委婉语气。如: Will / would you please tell me the way to the post office? 请告诉去邮局的路好吗? Will / Won"t you have some tea? 你喝点茶,好吗? You wouldn"t have the time to phone him, would you? 你现在没有那么多时间给他打电话是吧? would有时与like, love, hate, prefer, be glad, be happy等连用,用于提出建议或邀请。如: Would you like some cake or biscuit? 你要吃点蛋糕还是饼干? I"d like / love a coffee. 我倒想喝杯咖啡。 I would hate you to think I was criticizing you. 我可不愿意让你觉得我是在批评你。 3. 表示习惯和倾向性 will表示现在,would表示过去。如: A bear will not touch a dead body. 熊通常不碰死尸。 Fish will die out of water. 鱼离开水就不能活。 This door won"t open. 这扇门打不开。 He will sit for hours without saying a word. 他经常一坐数小时而不发一言。 She would lose the key! 她总是把钥匙弄丢了。 When he was a child, he would often go skiing. 他小时候经常去滑雪。 He told me the box wouldn"t open. 他告诉我箱子打不开了。 4. 表示推测 will用于推测现在,would用于推测过去,也可用于推测现在,语气较委婉。如: This bus will hold 40 people. 这辆大客车可以坐40人。 The teacher will be over fifty. 老师的年龄大概过五十了吧? That would be in 1978, I think. 我看这事发生在1978年。 That would be her father. 这大概是他妈。 有时will / would+完成式,表示对过去可能已经发生的情况的推测。如: He will have heard the news. 他已经听到那消息了吧。 I thought you would have finished it by now. 我想你现在可能已经做完了吧。 6. 表示执意或决心 will表示现在,would表示过去。如: He will have his own way. 他坚持要一意孤行。 I won"t have you say such things. 我可不许你说这样的话。 He would do it, though I told him not to. 虽然我叫他不要做,可是他偏要做。 7. 表示命令、许诺、指示、叮嘱等 You will carry out these instructions and report back this afternoon. 你要执行这些指示并在今天下午报告执行情况。 Will you be quiet! 安静点儿! You will have your share. 你会得到你那一份的。 8. would用于评论某一特定的行为 That"s just what he would say. 他就是爱说这种话。 It would rain on the day we choose for a picnic! 我们哪天去野餐,哪天就准下雨! 9.would表示过去反复发生的动作 Now and then he would come to see me. 他时不时来看我。 We would play catch here. 我们以前常在这儿玩捉球游戏。 10. would用于虚拟条件句 If I had money, I would go abroad. 假如我有钱我定会到国外去。 If he had been there, he would have helped you. 假如他那时在场,他定会帮助你的。 may与might用法要点完全归纳: 1. 表示允许 (1) 表示请求允许(即请求别人允许自己做某事),两者都可用,只是 might 表示的语气较委婉(但并不表示过去)。如: May I come round in the morning? 我早上来行吗? I wonder if I might use your phone. 不知可否用一下你的电话。 I"d like to ask a question if I may. 如果可以的话,我想提个问题。 (2) 表示给予允许(即自己允许别人做某事),只用能 may而不能用might。如: You may stop now. 你现在可以停下来了。 You may leave when you"ve finished. 你做完以后就可以走。 You may not tell him this. 你不可以告诉他这件事。 体会以下对话的问句与答句: A:May [Might] I stay? 我可以留下吗?(表请求,可用两者) B:Yes, you may. 可以。(表允许,不能用 might) 注意,might 表示允许通常不表示过去,但是在间接引语(即宾语从句)中可以用作 may 的过去式来转述已给予的允许。如: She said that he might take her dictionary. 她说他可以拿她的词典去用。 2. 表示推测 两者都可用,只是 might 比 may 语气更不确定,表示的可能性更小(注意此时的might并不表过去)。在句型使用方面:may通常用于肯定句或否定陈述句,一般不用于疑问句(疑问句中用 can, 参见 can),而might 则可用于肯定句、否定句或疑问句。在用法方面注意以下几点: (1) 后接动词原形,表示对现在或将来的推测。如: He may [might] be in his office now. 他现在说不定在办公室里。 Might he know the answer? 他可能知道答案吗? (2) 后接动词进行式,表示动作正在进行或将要发生。如: They may [might] be going abroad next month. 他们可能在下个月出国。 Might he be waiting for us at the station? 他会不会在车站等我们? (3) 后接动词完成式,表示对过去可能发生的事进行推测。如: He may [might] have gone to have his hair cut. 他可能理发去了。 She may [might] have read it in the papers. 她可能在报上已读到过此事。 注意,若不是单纯地对过去可能发生的事进行推测,而是表示以下用法,则只能用“might+完成式”,而不能用“may+完成式”: ①表示过去本来可能发生而实际上没有发生的情况,通常译为“本来可以”“本来可能”等。如: She felt horror at the thought of what might have happened. 一想到之前可能会发生的事情她就感到害怕。 You were stupid to try climbing up there. You might have killed yourself. 你从那儿往上爬,太蠢了,你可能会摔死的。 ②表示过去本来有责任或义务应该做某事的,但实际上却没有做成,含有批评和责备的意味,通常译为“本来应该”“本来可以”等。如: You might have told us half an hour ago. 你半个钟头前告诉我就好了。 You might have taken the trouble to tell me the meeting was put off. 你本来可以费心告诉我一声会议推迟了的。 ③用于虚拟条件句中谈论过去的情况时: If you hadn"t reminded me, I might have forgotten. 你如不提醒我,我可能就忘记了。 If we had taken the other road we might have arrived earlier. 如果我们当时走了另一条路,就可能到得早一些。 3. 用于 may [might] (just) as well 意为“不妨”“还是……为好”等,用 might 比用 may 语气更委婉。如: We may [might] (just) walk there. 我们不妨步行去。 There"s nothing to do, so I may [might] as well go to bed. 既然没什么事可做,我还是去睡觉为好。 might as well有时还可用于指过去的情况或用于比较两个令人不愉快的情况。如: Now that they were all there she might as well speak her mind. 由于大家都在,她不妨把自己的想法都说出来。 This holiday isn"t much fun; we might as well be back home. 这个假日过得真没意思,我们还不如呆在家里。 4. 正式场合或书面语中,may 可用来表示祝愿 May you be happy! 祝你幸福! May God bless you! 愿上帝保佑你! 情态动词ought to的用法归纳: 1. 表示义务或责任 表示义务或责任,意为“应该”: You ought to work harder. 你应该更努力工作。 Teachers ought to be honored. 教师应当受到尊敬。 Every citizen ought to obey law. 每个公民都应守法。 2. 表示建议或劝告 2. 表示建议或劝告,意为“应该”: There ought to be more buses during the rush hour. 高峰期间应公共汽车该多发几辆。 You ought to see her new film. 你应该看看她新拍的电影。 We oughtn"t to take risks. 我们不宜于冒险。 3. 表示推断 3. 表示推断,意为“应该”、“可能”: (1) ought to + 动词原形,表示对现在或将来情况的推测。如: Prices ought to come down soon. 价格可能会很快下跌。 If he started at nine, he ought to be here by now. 要是他九点钟出发,现在该到了。 That ought to be enough food for all of us. 那些该够我们大家吃的了。 (2) ought to +进行式,表示对正在发生的情况的推测。如: You oughtn"t to be talking so much. 你不该讲这么多话。 You ought not to be sitting here. It"s for old man only. 你不该坐在这儿,这是老人专座。 You ought to be wearing your shirt. 你该穿衬衫。 (3) ought to +完成式,表示对过去情况的推测;也可表示过去本该发生而实际上未发生的情况: The table-tennis game ought to / should have finished by now. 乒乓球比赛现在应该已经结束了。 There are many books which I ought to have read, and still ought to read. 有许多书我过去就应该看的,现在还应该看。 I ought to have helped her,but I never could. 我本该帮助她的,却从未能这样做。 You ought to have come earlier. 你本该来得早一点儿。 She ought to have been a teacher. 她本该当教师。 4. ought to用于否定句和疑问句 在否定式中用ought not 或oughtn"t,在疑问中将ought提到主语之前。如: They ought to go now, oughtn"t they? 他们现在该走了,是吗? Ought we (to) be in Taipei by now? 他们现在大概已经到北京了吧? —Ought I to go? 我该去吗? —Yes, you ought (to). 对,你该去。 5. ought to与 should的用法区别 一般说来,二者可替换,只是ought to语气稍重些。如: He ought to / should have arrived long ago. 他早就该到了。 You should / ought to have come yesterday. 你应该昨天来的。 (1) 表示因责任、义务等或表示出于法令规则、行为准则、道德责任等客观情况该做的事时,常用ought to; should则含有个人意见,强调主观看法。如: You are his parents. You ought to take care of him. 你们是他的父母,应当管他。 They oughtn"t to let their dog run on the road. 他们不该把狗放出来满街跑。 Such things ought not to be allowed. 这类事不该允许。 (2) 在公告、须知或条例中,出于礼貌,常用should: You should not run alongside the swimming-pool. 不准在游泳池边奔跑。 情态动词must用法归纳: 1. 表示“必须”“一定要”,用法注意: (1) 可用于肯定句、否定句或疑问句;用于否定句时,mustn"t 意为“一定不要”“(可)不能”。如: You must phone him this evening. 今天晚上你必须给他打电话。 You mustn"t phone him this evening. 今天晚上你可不能给他打电话。 Must I phone him this evening? 我今天晚上必须给他打电话吗? 注意,回答must引起的一般疑问句,如果要作否定回答,一般是用 needn"t(不能用 mustn"t)。如: A:Must I go there today? 我必须今天去吗? B:Yes, you must. 是的,你必须今天去。 B:No, you needn"t. 不,你不必今天去。 (2) 含有 must 的陈述句,其反意问句有两种可能:若must表示“必须”,反意问句用 mustn"t;若 must 表示“有必要”,反意问句用 needn"t,但是由于在没有上下文的情况下,很难分清must是表示“必须”还是表示“有必要”,所以有时两者都可用。如: You must go there at once, needn"t [mustn"t] you? 你必须(有必要)马上去那儿,不是吗? 2. 表示推测,意为“准是”“一定是”,注意以下用法: (1) 对现在情况作推测,后接动词原形;对现在正在进行的情况作推测,后接动词进行式;对一直在进行的情况作推测,后接动词完成进行式;对过去已发生的情况作推测,后接动词完成式。如: The man must have a lot of money. 这个人一定有不少钱。 He must be writing a letter to his girl friend. 他一定在给他女朋友写信。 Someone must have been smoking here. 一定有人一直在这里抽烟。 I must have read that in some book. 我一定是在某一本书上读过这个的。 比较以下各句: He must be rich.(现在)他一定很有钱。 He must have been rich.(当时)他一定很有钱。 He must know the result.(现在)他一定知道结果。 He must have known the result.(当时)他一定知道结果。 He must be waiting for us. 他一定在等我们。 He must have been waiting for us. 他一定一直在等我们。 must 表示对现在情况的推测后接动词原形时,该动词通常为状态动词(如be, have, know 等),若为动作动词,通常要转换其他说法。如: He is sure to succeed意思是“我肯定他会成功”。 他肯定会把他的女朋友带来。 正:He is sure to bring his girlfriend. 误:He must bring his girlfriend. 此误句若视为正句,则表示:他必须把女朋友带来。 (2) 表示推测的 must 通常只用于肯定句,在否定句或疑问句中要用 can 代之。如: If this is true, that must be false. 如果这个是真的,那个必然是假的。 She can"t be your daughter. 她不可能是你女儿。 If winter comes, can spring be far behind? 冬天来了,春天还会远吗? (3) 表示推测用于反意疑问句时要注意,反意问句的助动词不能用must,而要根据其后动词的形式来决定。如: He must be mad, isn"t he? 他一定是疯了,不是吗? He must have gone home, hasn"t [didn"t] he? 他准是回家去了,是吗? He must have left here yesterday, didn"t he? 他一定在昨天就离开这儿了,不是吗? 当“must+have+过去分词”不连用具体的过去时间状语时,反意问句通常用完成式,有时也用过去时;但是若连用了具体的时间状语,通常只用过去时。 3. 有时表示巧合,说明某事发生得不早不迟,就在某个当紧的时候,多指某些不受欢迎的事情的发生,在汉语中通常译为“偏偏”。如: Just when I was busy, the neighbor must come and chatter. 正当我忙碌的时候,邻居偏偏过来聊天。 John must choose the day I had company coming, to start painting the bathroom. 约翰偏偏选择我有客人来这天油漆浴室。 有时表示主观上的偏执或固执,常可译为“偏”“偏要”。如: Why must she be so nasty to me? 为什么她偏对我这样恶劣? After I gave her my advice,she must go and do the opposite. 在我给她出主意之后她偏要反着干。 有时可译为“非要”“非得”“硬是”“硬要”等。如: Must you make so much noise? 你就非得弄出这么大的声音吗? Why must you always interrupt me? 你为什么硬是老要打断我? 高考英语情态动词考点及例题解析 考点一、考查情态动词的基本用法以及含义 情态动词的基本用法以及含义,一直是高考考查的重要内容。我们看几个例题: 上面第三题的意思是:我喜欢周末,因为周六和周日我不需要早起。这里的needn"t是不需要的意思;mustn"t禁止;wouldn"t不愿;shouldn"t不应该;所以根据句子的意思,我们可以选A。 考点二、考查情态动词表示推测 情态动词表示推测的用法,是高考考查情态动词的一个重要方面。重点考查must, can, could, may, might等,同学们要准确掌握它们的使用场合,这是解决问题的关键。 表示肯定推测:must用于肯定陈述句; 表示可能性推测:can, could用于疑问句或否定陈述句; 表示可能性推测,may might用于陈述句; 在否定陈述句中can"t表示不可能的语气要比may not强。 同时我们还需要知道,表示推测有两种情况,一种是对过去的推测,要用“情态动词+have done”, 另一种是对现在的推测,要用“情态动词+动词原形”。 我们一起来看下面的例题和解析: 上面例题3句子的意思是:我来新学校之前没有必要担心,因为在这里我的同学对我非常友好。needn"t have done意思是本没有必要做某事,实际上已经做过了某事,根据句子的意思,我们可以选C。

both of 造句.行为动词前 be动词后 情态动词后 助动词后 分别举个例子

Both of them learn English hard. Both of us are students. Both of us can solve the maths problem. Both of them will visit you tomorro.

英语情态动词的用法

英语情态动词的用法   导语:情态动词有很多,它们的用法都是怎样的?下面是我整理的英语情态动词的用法,欢迎参考!   情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语。   一、 can, could   1) 表示能力(体力、知识、技能)。   Can you lift this heavy box?(体力)   Mary can speak three languages.(知识)   Can you skate?(技能)   此时可用be able to代替。Can只有一般现在时和一般过去式;而be able to则有更多的时态。   I"ll not be able to come this afternoon.   当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。如:   He was able to go to the party yesterday evening in spite of the heavy rain.   2) 表示请求和允许。   -----Can I go now?   ----- Yes, you can. / No, you can"t.   此时可与may互换。在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。   ---- Could I come to see you tomorrow?   ---- Yes, you can. ( No, I"m afraid not. )   3) 表示客观可能性(客观原因形成的能力)。   They"ve changed the timetable, so we can go by bus instead.   This hall can hold 500 people at least.   4) 表示推测(惊讶、怀疑、不相信的.态度),用于疑问句、否定句和感叹句中。   Can this be true?   This can"t be done by him.   How can this be true?   二、 may, might   1) 表示请求和允许。might比 may语气更委婉,而不是过去式。否定回答时可用can"t或mustn"t,表示“不可以,禁止”。   ----Might/ May I smoke in this room?   ---- No, you mustn"t.   ---- May/Might I take this book out of the room?   ---- Yes, you can. (No, you can"t / mustn"t. )   用May I...?征徇对方许可时比较正式和客气,而用Can I...?在口语中更常见。   2)用于祈使句,表示祝愿。   May you succeed!   3) 表示推测、可能性(不用于疑问句)。   might不是过去式,它所表示的可能性比may小。   1.He may /might be very busy now.   2.Your mother may /might not know the truth.   三、 must, have to   1) 表示必须、必要。   You must come in time.   在回答引出的问句时,如果是否定的,不能用mustn"t(禁止,不准),而用needn"t, don"t have to(不必).   ---- Must we hand in our exercise books today?   ---- Yes, you must.   ---- No, you don"t have to / you needn"t.   2) must是说话人的主观看法, 而have to则强调客观需要。Must只有一般现在时, have to 有更多的时态形式。   1. he play isn"t interesting, I really must go now.   2. I had to work when I was your age.   3) 表示推测、可能性(只用于肯定的陈述句)   1. You"re Tom"s good friend, so you must know what he likes best.   2. Your mother must be waiting for you now.   四、 dare, need   1) dare作情态动词用时, 常用于疑问句、否定句和条件从句中, 过去式形式为dared。   1. How dare you say I"m unfair?   2. He daren"t speak English before such a crowd, dare he?   3. If we dared not go there that day, we couldn"t get the beautiful flowers.   2) need 作情态动词用时, 常用于疑问句、否定句。在肯定句中一般用must, have to, ought to, should代替。   1.You needn"t come so early.   2. ---- Need I finish the work today?   ---- Yes, you must. / No, you needn"t.   3) dare和 need作实义动词用时, 有人称、时态和数的变化。在肯定句中,dare后面常接带to的不定式。在疑问句和否定句中,dare后面可接带to或不带to的不定式。而need后面只能接带to的不定式。   1. I dare to swim across this river.   2. He doesn"t dare (to) answer.   3. He needs to finish his homework today.   五、 shall, should   1) shall 用于第一人称,征求对方的意见。   What shall we do this evening?   2) shall 用于第二、三人称,表示说话人给对方的命令、警告、允诺或威胁。   1. You shall fail if you don"t work hard.(警告)   2. He shall have the book when I finish it.(允诺)   3. He shall be punished.(威胁)   六、 will, would   1) 表示请求、建议等,would更委婉。   Will / Would you pass me the ball, please?   2) 表示意志、愿望和决心。   1. I will never do that again.   2. They asked him if he would go abroad.   3) would表示过去反复发生的动作或某种倾向。would表示过去习惯时比used to正式,且没有“现已无此习惯”的含义。   1. During the vacation, he would visit me every other day.   2. The wound would not heal.   4) 表示估计和猜想。   It would be about ten o"clock when she left home.   七、 should, ought to   1) should, ought to表示“应该”,ought to表示义务或责任,比should语气重。   1. I should help her because she is in trouble.   2. You ought to take care of the baby.   2) 表示劝告、建议和命令。should, ought to可通用,但在疑问句中常用should。   1. You should / ought to go to class right away.   2. Should I open the window?   3) 表示推测   should , ought to (客观推测), must(主观推测)。   1.He must be home by now. (断定他已到家)   2.He ought to/should be home by now.(不太肯定)   3. This is where the oil must be.(直爽)   4. This is where the oil ought to/should be.(含蓄)   八、 情态动词+不定式完成式(have done)   1) can / could + have done在肯定句中表示“本来可以做而实际上能做某事”,是虚拟语气;在疑问句或否定句中表示对过去行为的怀疑或不肯定, 表示推测。   1. You could have done better, but you didn"t try your best. (虚拟语气)   2. He can"t have been to that town.(推测)   3. Can he have got the book?(推测)   2) may / might +不定式完成式(have done)   表示对过去行为的推测。不能用于疑问句中,没有虚拟语气的用法。Might所表示的可能性比may小。   1. He may not have finished the work .   2. If we had taken the other road, we might have arrived earlier.   3)must +不定式完成式(have done)   用于肯定句中,表示对过去行为的推测。意为“一定、想必”。其疑问、否定形式用can,can"t代替。参看1) can / could + have done表示推测。   1. You must have seen the film Titanic.   2. He must have been to Shanghai.   4)should +不定式完成式(have done)   用于肯定句中,表示对过去行为的推测。   He should have finished the work by now。   表示“本应该做而实际上没有做某事”,其否定式表示某种行为本不该发生却发生了。可以与ought to +不定式完成式(have done)互换。   1. You ought to / should have helped him. (but you didn"t.)   2. She shouldn"t have taken away my measuring tape, for I wanted to use it.   5) needn"t +不定式完成式(have done)   表示“本来不必做而实际上做了某事”。   You needn"t have watered the flowers, for it is going to rain.   6) will +不定式完成式(have done)   主要用于第二、三人称,表示对已完成的动作或事态的推测。   He will have arrived by now. ;

情态动词后面+to do /doing 能举些例子吗~

情态动词的用法归纳 情态动词的用法归纳 情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等. 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语 一、 can, could 1) 表示能力(体力、知识、技能). Can you lift this heavy box?(体力) Mary can speak three languages.(知识) Can you skate?(技能) 此时可用be able to代替.Can只有一般现在时和一般过去式;而be able to则有更多的时态. I"ll not be able to come this afternoon. 当表示“经过努力才得以做成功某事”时应用be able to,不能用Can.如: He was able to go to the party yesterday evening in spite of the heavy rain. 2) 表示请求和允许. -----Can I go now? ----- Yes, you can. / No, you can"t. 此时可与may互换.在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中. ---- Could I come to see you tomorrow? ---- Yes, you can. ( No, I"m afraid not. ) 3) 表示客观可能性(客观原因形成的能力). They"ve changed the timetable, so we can go by bus instead. This hall can hold 500 people at least. 4) 表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中. Can this be true? This can"t be done by him. How can this be true? 二、 may, might 1) 表示请求和允许.might比 may语气更委婉,而不是过去式.否定回答时可用can"t或mustn"t,表示“不可以,禁止”. ----Might/ May I smoke in this room? ---- No, you mustn"t. ---- May/Might I take this book out of the room? ---- Yes, you can. (No, you can"t / mustn"t. ) 用May I...?征徇对方许可时比较正式和客气,而用Can I...?在口语中更常见. 2)用于祈使句,表示祝愿. May you succeed! 3) 表示推测、可能性(不用于疑问句). might不是过去式,它所表示的可能性比may小. 1.He may /might be very busy now. 2.Your mother may /might not know the truth. 三、 must, have to 1) 表示必须、必要. You must come in time. 在回答引出的问句时,如果是否定的,不能用mustn"t(禁止,不准),而用needn"t, don"t have to(不必). ---- Must we hand in our exercise books today? ---- Yes, you must. ---- No, you don"t have to / you needn"t. 2) must是说话人的主观看法, 而have to则强调客观需要.Must只有一般现在时, have to 有更多的时态形式. 1. he play isn"t interesting, I really must go now. 2. I had to work when I was your age. 3) 表示推测、可能性(只用于肯定的陈述句) 1. You"re Tom"s good friend, so you must know what he likes best. 2. Your mother must be waiting for you now. 四、 dare, need 1) dare作情态动词用时, 常用于疑问句、否定句和条件从句中, 过去式形式为dared. 1. How dare you say I"m unfair? 2. He daren"t speak English before such a crowd, dare he? 3. If we dared not go there that day, we couldn"t get the beautiful flowers. 2) need 作情态动词用时, 常用于疑问句、否定句.在肯定句中一般用must, have to, ought to, should代替. 1.You needn"t come so early. 2. ---- Need I finish the work today? ---- Yes, you must. / No, you needn"t. 3) dare和 need作实义动词用时, 有人称、时态和数的变化.在肯定句中,dare后面常接带to的不定式.在疑问句和否定句中,dare后面可接带to或不带to的不定式.而need后面只能接带to的不定式. 1. I dare to swim across this river. 2. He doesn"t dare (to) answer. 3. He needs to finish his homework today. 五、 shall, should 1) shall 用于第一人称,征求对方的意见. What shall we do this evening? 2) shall 用于第二、三人称,表示说话人给对方的命令、警告、允诺或威胁. 1. You shall fail if you don"t work hard.(警告) 2. He shall have the book when I finish it.(允诺) 3. He shall be punished.(威胁) 六、 will, would 1) 表示请求、建议等,would更委婉. Will / Would you pass me the ball, please? 2) 表示意志、愿望和决心. 1. I will never do that again. 2. They asked him if he would go abroad. 3) would表示过去反复发生的动作或某种倾向.would表示过去习惯时比used to正式,且没有“现已无此习惯”的含义. 1. During the vacation, he would visit me every other day. 2. The wound would not heal. 4) 表示估计和猜想. It would be about ten o"clock when she left home. 七、 should, ought to 1) should, ought to表示“应该”,ought to表示义务或责任,比should语气重. 1. I should help her because she is in trouble. 2. You ought to take care of the baby. 2) 表示劝告、建议和命令.should, ought to可通用,但在疑问句中常用should. 1. You should / ought to go to class right away. 2. Should I open the window? 3) 表示推测 should , ought to (客观推测), must(主观推测). 1.He must be home by now. (断定他已到家) 2.He ought to/should be home by now.(不太肯定) 3. This is where the oil must be.(直爽) 4. This is where the oil ought to/should be.(含蓄) 八、 情态动词+不定式完成式(have done) 1) can / could + have done在肯定句中表示“本来可以做而实际上能做某事”,是虚拟语气;在疑问句或否定句中表示对过去行为的怀疑或不肯定, 表示推测. 1. You could have done better, but you didn"t try your best. (虚拟语气) 2. He can"t have been to that town.(推测) 3. Can he have got the book?(推测) 2) may / might +不定式完成式(have done) 表示对过去行为的推测.不能用于疑问句中,没有虚拟语气的用法.Might所表示的可能性比may小. 1. He may not have finished the work . 2. If we had taken the other road, we might have arrived earlier. 3)must +不定式完成式(have done) 用于肯定句中,表示对过去行为的推测.意为“一定、想必”.其疑问、否定形式用can,can"t代替.参看1) can / could + have done表示推测. 1. You must have seen the film Titanic. 2. He must have been to Shanghai. 4)should +不定式完成式(have done) 用于肯定句中,表示对过去行为的推测. He should have finished the work by now. 表示“本应该做而实际上没有做某事”,其否定式表示某种行为本不该发生却发生了.可以与ought to +不定式完成式(have done)互换. 1. You ought to / should have helped him. (but you didn"t.) 2. She shouldn"t have taken away my measuring tape, for I wanted to use it. 5) needn"t +不定式完成式(have done) 表示“本来不必做而实际上做了某事”. You needn"t have watered the flowers, for it is going to rain. 6) will +不定式完成式(have done) 主要用于第二、三人称,表示对已完成的动作或事态的推测. He will have arrived by now

情态动词

下面的连接很详细

意大利语中情态动词在近过去时和未完成过去时的用法区别?

你意大利语是什么级别了……? 因为这些东西在意大利学校一直学的 所以不可能马上明白首先这个是你肯定要知道的 Vorbo分:●persona(1a, 2a, 3a)●numero(singolare o plurale)●tempo(presente, passato futuro)●modo(certo, incerto, possibile 等)●aspetto(momentaneo, durativo 等)●direzione(attiva o passiva)lz想知道的tempo (时间)分:presente(现在) passato(过去)fututo(未来)在modo finiti indicativo的情况下 过去式分成tempi semplici 和tempi composti, 前一种还分: imperfetto*1 和passato remoto; 后一种分:passato prossimo, trapassato prossimo, 和trapassato remoto同样在在modo finiti indicativo的情况下也分 但建议lz先学好过去再学未来◆imperfetto*1 未完成过去:imperfetto的特点是字母“v" : io loda"v"o, io ride"v"o.......◆passato prossimo 近过去:一般会在verbo的前面加上动词essere 或者 avere的现代式: io "ho" lodato, io "sono" partito ◆passato remoto: 另外一种过去式,lz还要吗?要的话追问……因为如果不要的话还要继续Trapassato prossimo 和trapassato remoto....很难打的……

情态动词will和would的区别

* 回复内容中包含的链接未经审核,可能存在风险,暂不予完整展示! 情态动词will与would的用法1. 表示意愿will 表示现在的意愿,would表示过去的意愿。如: I will pay you at the rate you ask. 我愿意照你要求的价钱付款。Go where you will. 你愿到哪里就到哪里。He wouldn"t help me yesterday. 他昨天不愿帮助我。She asked if I would go with them. 她问我是否愿同他们一起去。【注】(1) 表示“意愿”的 will 有时可用于条件句中。如:If you will allow me, I will see you home. 如果你同意,我可以送你回家。(2) would也可表示现在的意愿,语气较委婉。如:I"d go there with you. 我愿同你去那儿。I wouldn"t go. 我不会去。2. 表示征求意见或提出请求主要用于第二人称的疑问句中,will和would均可用,would此时并不表过去,而表示委婉语气。如:Won"t you take off your coat? 你要不要把大衣脱掉? Will [would] you please post the letter for me? 请帮我寄了这封信好吗?Would Sunday night suit you? 星期天晚上适合你吗? (from www.n*****.com)【注】(1) 有时为使语气委婉,可用否定式。总的说来,用would比用will委婉,用won"t和wouldn"t比单独用will和would要委婉。(2) would有时用于提出想法,通常与like, love, hate, prefer, be glad, be happy等连用,若用于第一人称有时也可将would换成should。如:I"d like [love] to have a look at it. 我想看看它。I would prefer not to go out today. 我今天不想出去。3. 表示习惯和倾向性will表示现在的习惯,would表示过去的习惯。如:Oil will float on water. 油总是浮在水上。This window won"t open. 这扇窗户经常打不开。He"ll talk for hours, if you let him. 你要让他讲,他会讲几个小时。The wound would not heal. (过去)伤口老不愈合。When he was a child, he would often go skiing. 他小时候经常去滑雪。(from www.n*****.com)He would sit there for hours sometimes doing nothing at all. 有时他在那里一坐几个钟头,什么也不做。【注】有时would表示经常发生的令人不耐烦的事。如:That"s just like him—he would lose his keys! 他就是这样,老丢钥匙! 4. 表示推测will用于谈论现在,would可用于谈论过去,也可用于谈论现在(语气较委婉)。如:This car will hold six people. 这辆小汽车可以坐六个人。Ask him. He will know. 问问他吧,他大概知道。You wouldn"t know. 你不会知道。Every family would have some sort of trouble. 家家都会有本难念的经。The person you mentioned would be her father, is that right? 你提的那个人想必是她的父亲,对吗?【注】有时可后接完成式,表示对过去可能已经发生的情况进行推测。如:You will have heard of it. 你已经听到那事了吧。(from www.n*****.com)I thought you would have finished it by now. 我想你现在可能已经做完了吧。5. 表示执意或决心will表示现在的执意和决心,would表示过去的执意和决心。如:“Tell me the secret.” “I won"t.”“把秘密告诉我。”“我才不哩。”I won"t have anything said against her. 我绝不让谁说她的坏话。He would do it, though I told him not to. 虽然我叫他不要做,可是他偏要做。【注】此用法可视为表意愿的加强用法,即强烈的意愿即为决心。6. 其他用法will 还可表示许诺、指示、叮嘱等,而would还可用于评论某一特定的行为等。如:You will have your share. 你会得到你那一份的。You will do as I told you. 你得照我说的去做。That"s just what he would say. 他就是爱那样讲话。You would never do anything to hurt me. 你绝不会做伤害我的事的。7. would与虚拟条件句有时用would,可视为是省略了或包含有相关条件的虚拟语气。如:I might see her personally. It would be better. 我可能亲自去看她,那样更好些。(=It would be better if I saw her personally.)She"d be stupid not to accept. 她不接受那才笨呢。(=She would be stupid if the didn"t accept.)

英语里的情态动词,系动词,行为动词等等怎么分,怎么用?

情态动词的定义: 情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语。 We can be there on time tomorrow. 我们明天能按时去那儿。 May I have your name? 我能知道你的名字吗? Shall we begin now? 我们现在就开始吗? You must obey the school rules. 你必须遵守校规。 情态动词数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) . 情态动词的位置: 情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词则在主语之前。 I can see you. Come here. 我能看见你,过来吧。 He must have been away. 他一定走了。 What can I do for you? 你要什么? How dare you treat us like that! 你怎能那样对待我们! 情态动词的特点: 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not"。 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来。 He could be here soon. 他很快就来。 We can"t carry the heavy box. 我们搬不动那箱子。 I"m sorry I can"t help you. 对不起,我帮不上你。 情态动词的用法: can (could) 表示说话人能,可以,同意,准许,以及 客观条件许可,could 为 can 的过去式。 Can you pass me the books? 你能给我递一下书吗 ? Could you help me, please? 请问,你能帮助我吗? What can you do? 你能干点什么呢? Can you be sure? 你有把握吗? can 和could 只能用于现在式和过去式两种时态,将来时态用 be able to 来表示。 He could help us at all. 他完全可以帮助我们。 With the teacher"s help,I shall be able to speak English correctly. 由于老师的帮助,我将能准确地讲英语。 may (might) 可以, 表示说话人同意,许可或请求对方许可。 You may take the book home. 你可以把书带回家去. May I come in? 我可以进来吗? May I use your dictionary? 我可以用你的词典吗? You may put on more clothes. 你可以多穿点衣服. He said he might lend us some money. 他说他可以借给我们一些钱。 may 否定式为 may not, 缩写形式是 mayn"t. might 是may 的过去式, 有两种用法, 一种表示过去式,一种表示虚拟语气, 使语气更加委婉, 客气或对可能性的怀疑。 He told me he might be here on time. 他说他能按时间来。 Might I borrow some money now. 我可以借点钱吗? He might be alive. 他可能还活着。 Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测。 must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替。 I must finish my work today. 我今天必须完成我的工作。 You mustn"t work all the time. 你不能老是工作。 Must I return the book tomorrow? 我必须明天还书吗? After such a long walk, you must be tired. 走了这么长的路,你一定困了。 He must be the man I am looking for. 他一定是我要找的人。 He had to go because of somebody"s calling him that day. 那天他要走是因为有人叫他。 must + have + 过去分词,表示现在对过去事物的推测。 He must have told my parents about it. 他一定把这件事情告诉我父母亲了。 He must have received my letter now. 他现在一定收到我的信了。 It"s six o"clock already, we must have been late again. 已经六点钟了,我们一定又迟到了。 must 和 have to 的区别: must 表示说话人的主观思想, have to 表示客观需要。 You must do it now. 你必需现在就干。(说话人认为必须现在干) I have to go now. 我得走了。(客观条件必须现在走) need 需要 多用在否定式或疑问句中. Need I attend the meeting tomorrow? 我需要明天参加会议吗? You need not hand in the paper this week. 这一周你不必交论文。 need 是一个情态动词, 他的用法完全和其他情态动词一样, 但 need 还可当作实义动词使用, 这时 need 就象其他动词一样,有第三人称,单复数, 后面加带 to 的动词等特性。 I need a bike to go to school. 我上学需要一辆自行车。 Do you need a dictionary? 你需要词典吗? She needs a necklace. 她需要一条项链。 needn"t + have + 过去分词 表示过去做了没必要做的事情。 You needn"t have taken it seriously. 这件事情你不必太认真。 dare 敢 多用在否定或疑问句中。 The little girl dare not speak in public. 小女孩不敢在公众面前说话。 Dare you catch the little cat? 你敢抓小猫吗? dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等。 Do you dare to walk in the dark? 你敢黑夜走路吗? He doesn"t dare to tell the teacher what happened that day. 他不敢告诉老师那天发生的事。 ought 应当,应该 后面跟带有 to 的动词不定式。 You ought to read these books if you want to know how to repair the motorcar. 如果你想知道如何修理汽车,你应该读这些书。 You ought to bring the child here. 你应该把孩子带来。 ought + to have done 句型。指过去动作,表示一件事情该做而未做。 You ought to have been here yesterday. 你昨天就应该来。 ought not to have done 句型。表示一件不该做的事情却做了。 You ought not to have taken the book out of the reading-room. 你不应该把书带出阅览室。 will (would)决心,愿望。 would 为 will 的过去式, 可用于各人称。 I"ll do my best to catch up with them. 我要尽全力赶上他们。 I"ll never do it again, that"s the last time. 我再不会做那件事情了,这是最后一次。 He said he would help me. 他说他会帮助我。 will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气。 It"s hot. Will you open the windows? 天气太热了,你能打开窗户吗? Will you help me to work it out? 你能帮我解这道题吗? Would you like some coffee? 给你来点咖啡怎样? Shall, should表示命令,警告,允诺,征求,劝告,建议惊奇。 You should hand in the exercise book. 你应该交作业本儿了。 This should be no problem. 这应该没问题。 Shall we go now. 我们现在可以走了吗? Why should I meet him? 为什么我要见他? have to,不得不,必须,表示客观条件只能如此, 而must 则表示主观思想必须。 I have to go now. 我现在得走了。 I have to cook for my child. 我得给孩子做饭。 You must be here on time next time. 你下次一定要按时来。 We must go to get the timetable ourselves. 我们一定要自己去拿时刻表。一)由be构成的词组 1)be back/in/out 回来/在家/外出 2)be at home/work 在家/上班 3)be good at 善于,擅长于 4)be careful of 当心,注意,仔细 5)be covered with 被……复盖 6)be ready for 为……作好准备 7)be surprised (at) 对……感到惊讶 8)be interested in 对……感到举 9)be born 出生 10)be on 在进行,在上演, (灯)亮着 11)be able to do sth. 能够做…… 12)be afraid of (to do sth. that…) 害怕……(不敢做……,恐怕……) 13)be angry with sb. 生(某人)的气 14)be pleased (with) 对……感到高兴(满意) 15)be famous for 以……而著名 16)be strict in (with) (对工作、对人)严格要求 17)be from 来自……,什么地方人 18)be hungry/thirsty/tired 饿了/渴了/累了 19)be worried 担忧 20)be (well) worth doing (非常)值得做…… 21)be covered with 被……所覆盖…… 22)be in (great) need of (很)需要 23)be in trouble 处于困境中 24)be glad to do sth. 很高兴做…… 25)be late for ……迟到 26)be made of (from) 由……制成 27)be satisfied with 对……感到满意 28)be free 空闲的,有空 29)be (ill) in bed 卧病在床 30)be busy doing (with) 忙于做……(忙于……) (二)由come、do、get、give、go、have、help、keep、make、looke、put、set、send、take、turn、play等动词构成的词组 1)come back 回来 2)come down 下来 3)come in 进入,进来 4)come on 快,走吧,跟我来 5)come out出来 6)come out of 从……出来 7)come up 上来 8)come from 来自…… 9)do one"s lessons/homework 做功课/回家作业 10)do more speaking/reading多做口头练习/朗读 11)do one"s best 尽力 12)do some shopping (cooking reading, cleaning)买东西(做饭菜,读点书,大扫除) 13)do a good deed (good deeds)做一件好事(做好事) 14)do morning exercises 做早操 15)do eye exercises 做眼保健操 16)do well in 在……某方面干得好 17)get up 起身 18)get everything ready 把一切都准备好 19)get ready for (=be ready for) 为……作好准备 20)get on (well) with 与……相处(融洽) 21)get back 返回 22)get rid of 除掉,去除 23)get in 进入,收集 24)get on/off 上/下车 25)get to 到达 26)get there 到达那里 27)give sb. a call 给……打电话 28)give a talk 作报告 29)give a lecture (a piano concert)作讲座(举行钢琴音乐会) 30)give back 归还,送回 31)give……some advice on 给……一些忠告 32)give lessons to 给……上课 33)give in 屈服 34)give up 放弃 35)give sb. a chance 给……一次机会 36)give a message to…… 给……一个口信 37)go ahead 先走,向前走,去吧,干吧 38)go to the cinema 看电影 39)go go bed 睡觉(make the bed 整理床铺) 40)go to school (college) 上学(上大学) 41)go to (the) hospital 去医院看病 42)go over 过一遍,复习/ go over to 朝……走去 43)go fishing/skating/swimming/shopping 去钩鱼/滑冰/游泳/买东西 44)go home (there) 回家去(去那儿) 45)go round 顺便去,绕道走 46)go up 上去 47)go out for a walk 外出散步 48)go on (doing) 继续(做……) 49)go on with one"s work 继续某人的工作 50)go upstairs/downstairs 上/下楼 51)(the lights) go out (灯)熄了 52)have a lesson (lessons)/a meeting 上课/开会 53)have a football match (basketball match) 举行一场足球(蓝球)赛 54)have dictation 听见 55)have a try 试一试 56)have a good/wonderful time 玩得很高兴 57)have a lecture (a piano concert) 听讲座(听钢琴音乐会) 58)have a report (talk) on 听一个关于……的报告 59)have a glass of water (a cup of tea) 喝一杯水,(一杯茶) 60)have breakfast/lunch/supper 吃早饭/午饭/晚饭 61)have a meal (three meals) 吃一顿饭(三餐饭) 62)have a dinner 吃正餐 63)have bread and milk for breakfast 早饭吃面包和牛奶 64)have (have got) a headache 头痛 65)have a fever 发烧 66)have a cough (a cold) 咳嗽(感冒) 67)have a look (at) 看一看…… 68)have a rest (a break) 休息一会儿(工间或课间休息) 69)have a talk 谈话 70)have a swim/walk 游泳/散步 71)have sports 进行体育锻炼 72)have a sports meet (meeting) 开运动会 73)have something done 让人(请人)做…… 74)have a test/an exam 测验/考试 75)have an idea 有了个主意 76)had better do sth. (not do sth.) 最好做……(最好不要做……) 77)have a word with 与……谈几句话 78)help sb. with sth. help sb. do sth. 在……方面帮助…… 帮助……做 79)help oneself to some chicken/fish/meat 请随便吃点鸡/鱼/肉 80)help each other 互相帮助 81)keep up with 跟上……,不落后于…… 82)keep silent/quiet 保持沉默/安静 83)keep sb. doing sth. 使……一直做…… 84)keep one"s diary 记日记 85)make a noise (a lot of noise, much noise, noises)吵闹(十分嘈杂,响声) 86)make a living 谋生 87)make sb. do sth. 迫使某人做…… 88)make faces (a face)做鬼脸 89)make friends (with)与……交朋友 90)make a mistake (mistakes)犯错误 91)make room/space for 给……腾出地方 92)make a sentence (sentences)with 用……造句 93)make a fire 生火 94)be made from/of 由……制成 95)be made in 在……地方制造 96)look out of (outside) 往外看(看外面) 97)look up a word (in the dictionary) 查字典 98)look up 往上看,仰望 99)look after 照管,照看,照顾 100)look for 寻找 101)look like 看上去像 102)look fine/well/tired/worried 看起来气色好/健康/疲劳/忧虑 103)look out 当心,小心 104)look on …as… 把……当作……看待 105)look around 朝四周看 106)look at 看着…… 107)put on 穿上(衣服),戴上(帽子),上演(戏剧) 108)put up 建造,搭起,挂起,举起,张帖 109)put into 使进入,输入 110)put one"s heart into 全神贯注于 111)put…down… 把……放下 112)put…into… 把……译成 113)set up 竖起,建起 114)set off 出发,动身 115)set out 出发 116)set an example for 为……树立榜样 117)send for 派人去请(叫) 118)send out 放出,发出 119)end up 把……往上送,发射 120)take one"s advice 听从某人劝告 121)take out 拿出,取出 122)take down 拿下 123)take place 发生 124)take one"s place 坐……的座位,代替某人职务 125)take the place of 代替…… 126)take a walk/rest 散步/休息 127)take it easy 别紧张 128)take sth.with sb. 随身带着 129)take sb. to a park/London for one"s holidays 带某人去公园/伦敦度假 130)take care of 关心,照顾,保管 131)take a look (a last look) at 看一看(最后看一眼) 132)take an exam 参加考试 133)take away 拿走 134)take back 收回,带回 135)take hold of 抓住…… 136)take off 脱下(衣,帽,鞋等)拿掉 137)take (an active) part in (积极)参加(活动) 138)take photos 拍照 139)take some medicine 服药 140)take a bus/train, boat/ 乘公共汽车,火车/船 141)turn on 开,旋开(电灯,收音机等) 142)turn off 关上(电灯,收音机等) 143)turn in 交出,上交 144)turn…into… 变成 145)turn to 翻到,转向 146)turn down (把音量)调低 147)turn…over 把……翻过来 148)play basketball 打篮球,football 踢足球,volleyball 打排球 149)play games 做游戏 150)play the piano (the violin) 弹钢琴(拉小提琴) 151)play with snow 玩雪 152)play a joke (on) 对……开玩笑 (三)由其他动词构成的词组 153)think over 仔细考虑 154)arrive at/in a place 到达某处 155)eat up 吃完,吃光 156)do well in 在……干得好 157)enjoy doing sth. like doing sth. 喜欢做某事 喜欢干某事 158)find out 发现,查出(真相等) 159)finish off 吃完,喝完 160)stop doing sth. 停止做某事 161)stop to do sth. 停下来去做某事 162)hold a meting 举行会议 163)hold up 举起 164)hurry up 赶快,快点 165)enter for 报名参加 166)langht at 嘲笑 167)be used to 习惯于 168)used to 过去常常 169)wake…up 唤醒 170)work out 算出 二、动词短语 1)ask for 向……要……,请求 2)ask for leave 请假 3)send for 派人去请(叫) 4)pay for 付……的款 5)wait for 等候 6)thank for 为……感谢 7)apologize to sb. for sth. 为某事向某人道歉 8)look for 寻找 9)leave…for 离开……去…… 10)fall off 跌落 11)catch cold 着凉,伤风 12)catch up with 赶上 13)agree with sb. 赞成,同意某人的意见 14)filled……with 把……装满 15)tell sb. about sth. 告诉某人某事 16)talk about 谈论…… 17)think about 考虑…… 18)worry about 担忧…… 19)look after 照料 20)run after 追赶,跟在后面跑 21)read after 跟……读 22)smile at 对……微笑 23)knock at 敲(门、窗) 24)shout at 对……大喊(嚷) 25)throw away 扔掉 26)work hard at 努力做…… 27)wait in line 排队等候 28)change…into… 变成 29)hurry into… 匆忙进入 30)run into… 跑进 31)hear of 听说 32)think of 认为,考虑 33)catch hold of 抓住 34)instead of 代替…… 35)hand in 交上来 36)stay in bed 卧病在床 37)hear from 收到……来信

would这个词有哪些意思 怎么用 包括情态动词

would英音:[wud]美音:[wud]would的用法与意义1. will的过去式。例:They said it would be fine.听说天气会很好。(it will be fine的过去式)2.(在陈述语气中,表示过去将来时,表示有意识的行动或意志,常用于间接引语中)将;要;偏要;愿;例:I said I ~ do my best. 我表示过要尽最大的努力。3.(在陈述语气中,表示过去将来时,表示无意识的行动或单纯将来发生的事或动作,指实际情况,一般用于间接引语中)会;将;例:he said he ~ not be free that night. 他说他那天晚上没有空。4.(表示过去经常性或习惯性的动作)总会;总是;例:sometimes I ~ come home late. 有时我总是迟回家。5. 老是。(对总发生的事情,或一向的行为表示“不耐烦”的情绪。)例:That"s exactly like Jocelyn—she would lose the key! 贾诗琳总是那样,老把钥匙弄丢!6.(用于指过去的否定句中,表示拒绝,或无此习惯或不可能;用于事物常表示拟人化)不肯;总是不;例:he wouldn"t give the names of his partners. 他拒绝讲出他的伙伴们的名字。7. would better (美好) 最好...8. would rather 宁愿(表选择)例:—Which would you rather do, go to the cinema or stay at home? 你要看电影,还是呆在家里?—I"d rather not say what I think. 我还是不说的好。9. would that (罕)要是...该多好例:Would that we had seen her before she died. 要是她去世之前,能见到她一面该多好。10 would you (表请求 )请例:I would like some juice. 我想要一些果汁* 在提问,征求意见是用:“Would you like to go to the movie with me ? ” 你想要和我一起去看电影么? 强调的是would like to 不表示“邀请”,而表示“请求”。* 在回答是肯定句为“Yes,I would like to ....”或是“I would love to”再拒绝是要说谢谢,表示友好,语气委婉一些:“I"d love to, but, I have to do sth. Thank you.”

would情态动词的用法

would情态动词的用法  would(Britain):[wud] would(US):[wud],在陈述语气中,表示过去将来时,表示有意识的行动或意志,常用于间接引语中)将;要;偏要;愿;would的用法有哪些呢?本文是我整理would的用法的资料,仅供参考。  would的用法  would是will的过去式(可用在过去将来时:would+动词原形),但它也是一个情态动词,可能性是比较大的(would+动词原形),翻译时可以为“将要”或“想要”都可~  aux.(will 的过去式)  [表示过去将来时,用于第二、三人称](第一人称英国用 should,美国用 would) 将,会  He said he would come.  他说他要来.  [表示意愿]愿; 偏要,肯  He would eat nothing.  他不肯吃东西; 他什么也不愿吃.  I told him not to go,but he would not listen.  我叫他别去,可他偏不听 .  He would go in spite of our warnings.  他不听我们的劝告,执意要去.  [表示过去的习惯动作]常常,总是  He would sit for hours doing nothing.  过去他常常 坐几个钟头什么事也不做.  He would come to see us on Sundays.  过去星期天他经常来看望我们.  [表示推测]大概,该是  I would be about ten when my brother left home.  我哥哥离开家时,我大概十岁左右 .  [表示某种假设的意志]想要,愿意  I could do so if I would.  要是我愿意,我能够这样做(但我不愿意).  If you would do this for me,I should be grateful indeed.  若是你愿意为我做这件事,我将万分感激 .  [表示虚拟,假设,虚 构,用于虚拟条件句的主句第二、第三人称,美国也用于第一人称]要,会,就会,将要  They would be killed if the car went over the cliff.  如果汽车翻在悬崖下,他们就会丧命.  They would have been killed if the car had gone over the cliff.  如果汽车当时翻到悬崖下,他们早就丧命了.  [表示请求或个人想法、看法,使语气更婉转]请  Would you kindly show me the way to the station?  劳驾,请问到车站的路怎么走?  I would like to speak a few words.  我想讲几句话.  It would seem that he was right.  看来他倒是对的.  [表示假想的愿望]但愿,要是...多好  Would [I would] that they were safe home again!  愿他们再能平安回家 !  Would that I were young again.  我若能再年青些该多好啊!  We wish that he would come again.  我们但愿他会再来 .  I would rather you came on Sunday.  [表示能力](=could) 能  The barrel would hold 100 litres.  这桶能装一百升 . Would 用法归纳  1 . would用在陈述语气中,表示过去将来时,表示有意识的行动或意志,常用于间接引语中,译为“要;偏要;愿”。例如:  I said I would do my best.我表示过要尽最大努力。  He said he would do me a favor.他说他愿意帮助我。  2. would 用在陈述语气中,表示过去将来时,表示无意识的行动或单纯将来发生的事或动作,指实际情况,译为“将,会”。例如:  He told me he would he free tonight.他告诉我他今晚有空。  He said he would turn up on time.他说他会准时出席。  3. would 用于表示过去经常性或习惯性的动作。译为“总会,总是”。例如: Sometimes I would come home late.有时我总是迟回家。  He would read in the sun.他过去常在阳光下读书。  4. would 用于过去的否定句中,表示拒绝,或无此习惯或不可能,译为“不肯,总是不”。  He wouldn"t give the names of his partners.他拒绝讲出他的伙伴们的名字。  5. 用于对过去事情的推测,译为“大概”。例如:  That would be in spring 1964.那大概是1964年春天的事情。  6. Would 表示对感觉的夸张,说明是意料之中的事情。例如:  ——Of course, he broke the glass.当然是他把杯子打破了。  ——Oh, he would .哦,还会是谁呢。  7. would = could 译为“能,能够”。例如:  The room would seat 50 persons这房间能穿纳50人  8.用于虚拟语气的主句中。例如  If I were your, I would quit smoking.如果我是你,我就戒烟。If you were a bird, you would fly.  9.用于虚拟语气,表示强烈愿望,译为“但愿,要是„„多好”。Would (that) I were a superman.我要是超人那该多好啊。  10、表示要求、邀请、希望或询问,其后常接like, love, prefer, mind词。  Would you please show me the way? 请你指点指点路线好吗? Would you like to go shopping with me? 愿和我一起去购物吗?情态动词would的用法讲解  (1)would是will的过去式,表示过去时间的意志、意愿、决心,用于各种人称。  They said they would help us.他们说他们愿意帮助我们。  I promised that I would do my best. 我承诺我决心尽最大努力。  (2)would表示说话人的意愿或向对方提出请求,语气比will婉转,仍指现在时间。  Would you like some bananas?你喜欢吃香蕉吗?  I"d like to see your new bike.我希望看看你的新自行车。  Wouldn"t it be better to leave tomorrow?明天离开是不是更好?  (3)表示过去习惯发生的动作(与used to有区别,见used to)。  When he was there, he would go to that coffee shop at the corner after work every day. 他在那里时,他每天下班后都到拐角处那家咖啡店去。  The old worker would often go to the park to play chess.那位老工人过去常去公园下棋。  She would come to see me now and then.她时常来看我。  (4)表示推测。  That would be his father.那大概是他父亲。

would是情态动词还是助动词

would的原形是will~~它的词性有助词,及物动词,不及物动词和名词.下面是详细解释: 助词 v.aux. 1. (表示单纯的将来)将 He will be home at six. 他六点回家. 2. (表示意志、意愿)愿,要 You will come, won"t you? 你会来的,是不是? [1] 3. (表示经常性、习惯性)经常,惯于,总是 These things will happen. 这种事总是要发生的. 4. (表示能力、功能)能 This auditorium will seat one thousand people. 这个礼堂能容纳一千人. 5. (表示猜测)可能,大概 This will be the house you"re looking for. 这大概就是你找的那所房子了. 6. (表示责任、义务)必须,一定 No one will leave the examination room before ten o"clock. 十点以前谁也不能离开考场. 及物动词 vt. 1. 用意志力使,主观促成[O2][+(that)] I tried with all my might to will him to say no. 我竭尽全力想使他说不. 2. 遗赠[O1][(+to)] He willed his house to his nephew. 他立下遗嘱,把房子留给侄子. 3. 意欲,决心要 不及物动词 vi. 1. 下决心 2. 愿意 名词 n. 1. 意志,毅力;自制力[C][U] Jim has a strong will. 吉姆是个意志坚强的人. 2. 心愿;目的;意愿[U][+to-v] He had a strong will to beat his opponent. 他有击败对手的强烈欲望. 3. 决心;意图[S] She had no will of her own. 她这人没有主见. 4. (对别人所抱的)情感[U] They bear you no ill will. 他们对你并无恶意. 5. 遗嘱[C] In her will she left all her money to her children. 她在遗嘱中将其所有的钱留给子女. Will 名词 n. 威尔 (男子名)

如何区别will在句子中是情态动词还是助动词?

助动词WILL的用法 1.表示将来的动作或状态. 2.WILL+原形不定式表示简单将来. 3.would+原形不定式表示过去将来. He will go to America tomorrow. 他明天将要去美国. He said he would finish it on time. 他说他会按时完成它. 4.表示说话者或主语的意愿,决心,意向. I will do it. 我将做这件事. He would never give up. 他绝不放弃. 5.WILL用于一些祈使句的附加疑问句. Let"s go to the movies,will you? 让我们去看电影,好吗? 6.would可表示过去的习惯动作. Sometimes we would go to the mountains. 有时候我们会到山里去. 7.would可表示客气的请求. Would you pass me the bottle? 请你递给我那个瓶子好吗? 8.would可用于假设法,后接原形不定式或完成时. If I were young,I would go traveling. 要是我年轻,我会去旅行. If I had had enough money,I would have bought the car. 如果我有足够的钱,我就会买下那部车. 9.惯用语would rather+原形不定式,表示宁愿.【参见时态,虚拟语气】 I would rather go to school than stay at home. 我宁愿上学去而不愿留在家里. will是情态动词,后接动词原形. [表示单纯的将来时,用于第二、三人称](第一人称的单纯将来时,英国人用shall,美国人用will)将(要),会 Tomorrow will be Wednesday. 明天是星期三. He will be forty on his next birthday. 到下次生日,他就四十岁了. You will offend him if you do that. 你要是这样做,会冒犯他的. Press the button and the wheel will turn. 按一下电钮,轮子就会转动. [表示主观意志、意愿等]愿,想要,(一定)要 Wewilldo our best. 我们一定尽最大的努力. I won"t do so. 我不愿这样做. We cannot always do as we will. 我们不能总是按照我们的愿望去做. She will not shove the heavy load onto others. 她不愿意把重担推给别人. He will go his own way. 他一意孤行. [表示推测]该是,可能 This"ll be the book you are looking for.这可能是你正在找的那本书.He will have got home by now.现在他该到家了. [表示功能]能,行 Each bench will seat four persons. 每条凳子能坐四个人. [表示习惯,经常性,倾向性]惯于,总是[会],终归是 Boys will be boys. 男孩终归是男孩. Matches will not strike if they are damp. 火柴潮湿就擦不着. [用于疑问句,第二、三人称,表示询问、请求、命令]请...; ...好吗? Will you have another cup of tea 请再喝一杯茶好吗? Will your father allow us to use his telephone? 你父亲肯让我们使用他的电话吗? W-you take your seats,please? 请大家都坐下! [表示命令、指示]务必,必须 You will please do so.请你照办吧

would you like是情态动词吗

有没有yes,I am not.或no,I am.的情况(I后面不一定是be动词,系动词be/助动词/情态动词均可)

很肯定告诉你,我没学过这样的说法,也没见过这样的用法。

be able to是情态动词吗

情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语,只能和其他动词原形构成谓语。情态动词有四类:①只做情态动词:must,can(could),may(might),oughtto②可做情态动词又可做实义动词:need,dare③可做情态动词又可做助动词:shall(should),will(would)④具有情态动词特征:have(had)to,usedto

feel是情态动词吗?急!!谢谢!!!!

shi

六级情态动词综合用法指导

情态动词,在英文中主要用来表示说话人的看法、态度等。它很接近中文里的能愿动词。从用法上来说,它有这样几个特点: 1)各个情态动词自身都有一定的词义。   2)情态动词不能在句中独立担当谓语。   3)情态动词在句中不受任何人称,性,数变化的影响。   4) 情态动词后接的不定式(除ought外)都不带to ,即接动词原形。   英文中的情态动词主要有:can , could ; may , might ; must ; ought ; need ; dare , dared ,另外,shall , will , should , would在一定的场合也可用作情态动词。例如:   He can speak five languages .他会说五种语言。   She must have arrived home by now .现在她准到家了。   We should study hard for our motherland . 我们应该为祖国而努力学习。   They needn"t be in such a hurry for there is enough time   for them . 他们还有足够的时间,用不着这么慌张。   1. 常用情态动词的基本用法   can , could 能,会   (could可以看作是can的过去式,这两个词除了时态不相同外,在表达意思的许多方面是相同的。当然could也有自己独特的用法。)   1)表示脑力或体力上的能力   Nobody can stop the development of science .   谁也无法阻止科学的发展。   She can sing that song in English.她能用英文唱那歌。   He can submerge to a depth of about twenty meters .   他能潜入约二十米深的水中。   He could hardly support his family before he found the new job .他在找到那份新工作前几乎无 法养家。   I could not understand the lecture on the computer given by Mr. Smith .   我听不懂史密斯先生作的那个关于计算机的讲座。   2)表示客观上的可能性   You can borrow this useful book from the library .   你可以从图书馆借到这种有用的书。   A more suitable person than him for the job can not be found . 不可能找到比他更适合这份工作的人了。   Now people can skate on the lake .现在人们可以在湖上滑冰了。   When the storm stopped , the plane could take off .   当风暴停下来时,飞机可以起飞了不得。   3)表示主观上的允许   Can I ask you some questions about it ?   我可以问你有关这件事的几个问题吗?   You can not leave here till I come back .直到我回来你才能离开。   Such kind of thing can"t happen any more later .   这类事以后不准再发生了。   Can you tell me how to get to the airport ? 你能告诉我怎么去机场吗?   Could you tell me how to get to the airport ?   您能告诉我怎么去机场吗?   Could I be forgiven my negligence ? 请原谅我的疏忽,行吗?   4)(用于否定句、疑问句或感叹句中)表示猜测、怀疑或惊诧   How can / could you be here ? 你怎么会在这儿?   She couldn"t / can"t be so stupid to do that .   她不可能蠢得去做那种事吧。   He couldn"t / can"t be over seventy .他不可能有七十多岁了。   Where could / can the boy be now ? 那孩子现在能在哪儿呢?   另外,could还常用于表示较客气委婉的看法、提问及用于虚拟语气的结构中。这时候,could就不可以看作是can的过去式了。而是could自己独特的用法。如:   Could you speak a little slowly ?   您能稍微说慢一点儿吗?   I"m afraid that we couldn"t give you any definite answer at this moment .   恐怕我们这时候还无法给予您任何确切的答复。   I could come earlier if asked .   如果要让我早一点来,我可以来早一点。   We would appreciate it if you could offer us any help .   如果您能为我们提供帮助的话,我们将不甚感激。   You could have done better if you had worked harder at it .   如果你再加把劲,本来可以干得更好一些的。   may , might 或许,可能,可以   (might可以看作是may的过去式,这两个词除了时态不相同外,在表达意思的许多方面是相近的。当然may 和might又都有一些各自不同的独特用法。)   1)可能性   I may be busy from tomorrow on .从明天起我可能会忙起来。   You may catch sight of the sunrise from here when you get up before 5 in the morning .你在早晨五点钟以前起来,或许能从这儿看到日出。   I wondered if they might agree with the idea .我想知道他们是否会同意这种想法。   She thought it might be wise to try her luck here .   她认为在这儿碰碰运气也不错。   2)表示允许   May I come in ? 我可以进来吗?   I"d like to have a smoke here if I may .   如果可以的话我想在这儿抽一支烟。   The librarian told her that she might return the book to the library in three days .   图书馆理员告诉她说,她可以在三天后还那本书。   At the press conference , a news reporter asked the chairman if she might trouble him with a question about Taiwan issue.   在记者招待会上,一位新闻记者问大会主席她是否能提一个有关台湾问题方面的问题。   3) may间或用来表示祝愿,也常用于表示目的或让步的状语从句中:   May that day come soon .但愿这天早日到来。   May you succeed in winning the first prize in the game .   祝愿你比赛夺冠成功。   May you continue in your efforts and achieve greatersuccesses .   祝愿你继续努力并取得更大的成功。   4) might也常用于表示目的等状语从句中,或用于虚拟语气的结构中:   I could not convince him , try as I might .我无论用什么样的办法也不能说服他。   They left off earlier on that day so that they might catch the first train .   那天,他们为了赶上头班车动身早一些。   He died so that the others might live .   为了其他的人能活下去,他自己牺牲了。   If you had made better use of your time , you might have learned more .假若你将自己的时间利用得更好一些,你本可以学到更多东西的。   One error in calculation might ruin the whole project .   计算中出一点错就可能毁掉整个工程。   注意:在回答以may引导的问句时,一般说来避免使用may,以免显得太严厉、或不太客气,而改用其他方式。例如:   ——May I come in ? ——Yes , please .请进。   我可以进来吗? ——Sure . / Certainly . .请进。   ——Please don"t . .请不要进来。   ——No , you mustn"t .不行。   must 应该,必须,一定   1) 表示出于职责、义务该做某事   We must protect people"s rights .我们应该保护人民的利益。   Everyone must be loyal to his motherland .   每个人都应该忠于自己的祖国。   You must serve the people when you grow up .   你们长大成人时应该服务于人民。   Students must work hard at their study .   学生应该努力学习。   2)表示出于主观意识而必须要做某事   We must speed up the pace of our economic reform .   我们必须加速经济改革的步伐。   We must keep steps to the scientific development .   我们一定要与科学的发展保持一致步调。   You must hurry up or you"ll be late .   你必须得快点儿,不然会迟到的。   在这种用法中must表示出于主观意识而必须要做某事;have to却表示由于某种客观原因而不得不做某事。除此以外,have to自身有时态的变化形式。如:   I have to go now for I"ve got a meeting 15 minutes later.我现在必须要走了,因为我15分钟后有个会要开。   He has to be back home by five to fetch his son from kindergarten .   他必须在五点钟前回家去幼儿园接他的儿子。   Jenny had to tidy up the room before her mother came back .   珍尼不得不在她妈妈回家以前将房间整理好。   We"ll have to reconsider the whole thing .   我们将不得不重新考虑整个事情。   注意:在这种用法中,回答以must引导的问句时,若是否定答复,不可以用mustn"t 而需要用needn"t 或是don"t have to,因为mustn"t意思是"绝不能、一定不要",而没有"不必"的意思。例如:   ——Must we hand in our exercises today ? 我们今天必须交作业吗?   ——Yes , you must .是的,必须交。   ——No , you needn"t (or , you don"t have to )。   不,不必今天交。   3)表示禁止(用于否定句)   You must not speak ill of others .   你一定不要说别人的坏话。   Cars must not parked here . 这里禁止停车。   Smoking must not allowed in the office .严禁在办公室吸烟。   You mustn"t talk to girls like that .你绝不能那样对女孩子说话。   4)表示猜测、推测must常用于肯定句中表示猜测。对现在或未来的事进行猜测时,后接动词原形;对已经发生的事进行猜测时,后接have + 过去分词。例如:   You must be tired after working so long .你工作这么久以后,肯定累了吧。   It must be that naughty boy crying outside .肯定是那个调皮的孩子在外面大叫。   The idea must be accepted by the society sooner or later.   这种想法肯定或迟或早会被社会所接受的。   It must have rained last night for it is so wet outside .   外面这么湿,昨晚肯定下雨了。   I didn"t see you in class yesterday. You must have been   absent .我昨天上课没见着你,你肯定没有来。   Ought (后接带to的不定式构成谓语动词)应该   1)表示出于职责、义务该做某事   You ought not to be so careless in your work .你不应该在工作上如此粗心大意。   We ought to study hard for the sake of our motherland.   我们应该为了我们的祖国而努力学习。   His doctor said to him that he oughtn"t to smoke so much .   他的大夫说他不应该抽这么多烟。   Oughtn"t you to give us a chance to try ?   你难道不应该给我们一个尝试的机会吗?   2) 表示极有可能发生某事   As an auto repairman , Dick ought to know what is wrong with the car .   狄克作为一个汽车修理工总该知道这部车的毛病所在吧。   If we set off right now , we ought to be able to get there in time .   如果我们马上出发,我们应当能够按时到达那里。   Tomorrow ought to be a nice day for we have such a fine sunset today .   今天有这么好的晚霞,明天准是个晴天。   need(用于否定句和疑问句)需要   There are still one and a half hours to go , we needn"t be insuch a hurry .   还有一个半小时,我们无需如此慌慌张张。   I hardly need say how much we missed you .不用说我们是多么想念你啊。   Need you go so soon ?你需要这么早就去吗?   You need have no anxiety on my account .你不必为我而着急。   dare , dared(用于否定句、疑问句和疑问句)敢   Dare you stay here alone in the night ? 你敢在夜里呆在这儿吗?   Nobody dared mention that matter. 没有人敢提那件事。   How dared you say that to her ? 你怎么敢对她说那件事?   Even if you dare do it , I won"t allow you to because it"s too dangerous .   即使你敢做,我也会让你做那件事,因为太危险了   shall 用作情态动词时,适用于第二人称和第三人称。   主要表示下面几层意思:   1)许诺   You shall hear everything directly you come .你一来就可以听到一切了。   "Whatever you want you shall have , "said the Fairy .   仙女说:"你想得到什么,你就可以有什么。"   I don"t want to be hard on your daughter ; she shan"t be pressed .   我不想对你女儿太严厉,她不会太受压的。   I promise that you shall see her again before long .   我保证你不久就能再见到她。   2)命令   You shall come to my office immediately .你必须马上来我的办公室。   She shall not stay in my garden .她不可以呆在我的花园里。   He shall not come into my study . 不许他进我的书房。   You shall do as you are told .按告诉你的那么做。   3)决心(表示某事一定会发生)   That day shall come .那一天一定会到来。   It has been decided that he shall be given the job .   肯定给他那份工作的事已经定下来了。   This law shall come into effect on January 1st 2001   这个法律于2001年元月1日生效。   4)规定   Each competitor shall wear a number .每个参赛者要佩戴一个数字标。   The renter shall keep the house in a neat and orderly state .   租赁者要保持房屋整洁有序。   The supplier shall make shipment before October and the purchaser shall make payment within 15 days after   receipt of the goods .卖方十月以前装运,买方在收到货物后十五天内付款。   should   (用作情态动词时,有时表示具体的意思,有时却没有意义。主要用于下面几个方面。)   1)表示出于职责、义务该做某事   You shouldn"t come to such a decision hastily .   你不应该匆匆忙忙地作出这么一个决定。   You should write to your parents at least once a month .   你应该至少每月给你父母亲写一封信。   We should read English aloud every morning .   我们应该每天早晨朗读英文。   They should do it for their own good .   为了他们自己利益他们应该做这件事。   2)表示对某种情况的估计   She shouldn"t be out in such an early morning .   她不会这么一大早就出去了吧。   The effect of the tax should be felt in higher prices .   人们可能会从各种上涨的物价中感觉到这种税的影响的。   The event should lead them to a even worse economic crisis.这次事件可能会将他们引向更严重的经济危机。   This book should be published in two months at most .   这本书最多两个月后就会出版的。   3)表示惊讶、失望等情绪   I think it is dreadful that anyone should be so miserable.   我认为,竟然每个人都如此伤心就太糟糕了。   Why should I pay him for nothing ? 我干吗要无为地付给他钱?   It seems so unfair that this should happen to me .   这件事竟然发生在我身上似乎太不公平了。   It"s strange that it should be so cold today .奇怪,今天怎么会这么冷。   4)用于某些从句中表示虚拟语气   The doctor insisted that the girl should be hospitalized .   大夫坚持认为那个女孩要住院治疗。   If it had not been for the doctor"s care the girl should not be speaking to you now .要不是由于大夫的精心照料,这个女孩现在就不能与你说话了。   She stood away so that he should enter the room first .   她让到一边,好让他第一个进入房间。   I"ll write it down lest I should forget it 我将它记下以免遗忘。   Take an umbrella with you in case it should rain .   带上雨伞,以防万一下雨。   will , would   (would可以看作是will的过去式,这两个词除了时态不相同外,在表达意思的许多方面是相近的。当然will 和would又都有一些各自不同的独特用法。)   1)用于第二人称疑问句,表示请求(在这种用法中would使语气更为客气、委婉)   Will you tell her that I"ll be back in twenty minutes ?   请告诉她我二十分钟后回来,好吗?   If you want help, just let me know , will you ?   你需要帮助就告诉我,好吗?   Won"t you come in and have a little whisky ?   你要不要进来喝一点儿威士忌?(或是:你进来喝一点儿威士忌,好吗?)   Would you tell me how to get to the shopping center ?   您能告诉我怎么去购物中心吗?   2)用于表示愿望   Go where you will .去你想去的地方吧。   I will pay you at the rate you ask .我会按你要的利率付给你钱的。   He wouldn"t let the doctor take his blood pressure .他不愿意让大夫给他量血压。   They had to obey whether they would or not .他们不得不遵从他们的意愿。   3)表示习惯、倾向(可译成"总是会、老是,等" )   Sometimes the cat will lie there all afternoon .   有时侯,那只猫总是整个下午都躺在那儿。   Oil and water will not mix .油和水决不能调和。   He would sit there for hours , doing nothing at all .   他总是在那儿一坐就是几个小时,什么都不干。   4)表示猜测(可译成"一定是……、想必……,等" )   This will be the house you"re looking for .这想必就是你要找的房子吧。   He will have gone back to New Zealand .他一定是回新西兰去了。   The person you mentioned would be the father , is that right ?   你说的那个人一定是爸爸了,对吗?   That would be in 1999 , I think .那大概是在1999年吧。   5)will用于表示决心(可译成"一定要,决心,等" )   We will never talk about that subject again .   我们决不会再谈论这个话题了。   I will make this computer work even if I have to stay up all night .   我即使整晚不睡觉也一定要让这台计算机工作起来。   6)would常用于虚拟条件句,表示与事实相反或不太可能实现的情况   But for your help we would have been late .要不是你帮忙我们就迟到了。   Well , I wouldn"t worry about it . It won"t do me any good .   好了,我不会担心那件事的,因为它不会给我带来什么好处

情态动词表推测,为什么指人时还用it must be

it 是指示代词,must be表示 一种可能性,因为不知道是男性还是女性,所以用的it代替

英语中情态动词may, might的用法

  情态动词(Modal verbs)本身有一定的词义,表示语气的单词。但不能独立作谓语,只能和动词原形一起构成谓语。情态动词用在行为动词前,表示说话人对这一动作或状态的看法或主观设想。情态动词虽然数量不多,但用途广泛,主要有下列: can (could), may (might), must, need,ought to, dare (dared), shall (should), will (would) must not。   1.may, might的用法   may, might都表示“可以”,不过might更客气委婉一些:   May I join you?   我可以加入你们吗?   They may use ours.   他们可以用我们的。   You might as well tell the truth.   你不妨讲真话。   may和might都表示“可能”、“或许”:   He may have known it already.   他可能已知道了。   That may happen sometimes, you know.   你知道,那种事有时可能发生。   You might have caught a cold.   你也许感冒了。   Anybody might make mistakes.   任何人都可能犯错误。   may, might用在表示目的等一些状语从句中:   Tell her your phone number so that she maycontact you in future.   把你的电话号码给她,以便她今后与你联系。   She studies very hard so that she might apply to a better college.   她学习很用功,以便能报考一所较好的大学。   本文作者:丹丹英语(公众号:英语语法学习)   本文已获转载授权,版权归作者所有,如需转载,请联系原微信公众号“英语语法学习”。

初一英语第六章情态动词

第六章 情态动词 一.概念: 情态动词是表示能力,义务,必须,猜测等说话人的语气或情态的动词. 二.相关知识点精讲: 1.can 1)表能力 can表能力时意味着凭体力或脑力或技术等可以无甚阻力地去做某事。 I can climb this pole. 我能爬这根杆子。 He is only four , but he can read. 他只有4岁,但已认得字了。 Fire can"t destroy gold. 火烧不毁金子。 因为can不能和其他助动词连用,所以表示将来式时用will be able to You will be able to skate after you have practiced it two or three times. 你练习两三次后就会溜冰了。 2)表可能性 多用于否定与疑问结构中,但也可用在肯定句中。 Can the news be true? 这消息可能是真的吗? It can"t be true. 它不可能是真的。 What can he possibly mean? 他可能是什么意思? can 用在肯定句中表示理论上的可能性(一时的可能)。 A horse in the center of London can cost a lot of money. Attending the ball can be very exciting. The road can be blocked. 这条路可能会不通的。 may 在肯定句中表示现实的可能性。 The road may be blocked. 这条路可能不通了。 3)表示允许(和may意思相近)常见于口语。 Can (May) I come in ? 我能进来吗? Can I smoke here ? 我可以在这里抽烟吗? 2.could的用法 1)表过去的可能和许可,(多用于间接引语中) At that time we thought the story could not be true. 那时我们认为所说的事不可能是真的。 Father said I could swim in the river. 爸爸说我可以在河里游泳。 2)表过去的能力 I could swim when I was only six. 我刚六岁就能游泳。 Could在肯定句中表示过去的能力时,常表抽象的一般的能力。 He could be very naughty when he was a child. 他小时候会是很顽皮的。 3)表“允许”。可表示委婉客气的提出问题或陈述看法 Could I use your bike? Yes, you can. 他会记得那时吗? I"m afraid I couldn"t give you an answer today. 恐怕我今天不能回答你。 The teacher said you could go to the store for sweets. 老师说你可以去商店买糖。 3)Could/can+have done 结构表示对过去发生的事情的“怀疑”或“不肯定”。 could 加完成式还用于肯定句时一般表过去可能完成而却未完成的动作。 Can they have won the basketball match? 他们赢了那场篮球赛吗? What you referred to just now can have made her very sad. 你刚刚所谈到的可能令他很伤心。 You could have completed the task a little earlier. 你本来能早点完成任务的。(但事实上并没有提前完成任务) I could have passed my examination easily but I made too many stupid mistakes. 我本可以轻易通过考试,但我犯了太多不该犯的错误。 如表具体做某一件事的能力时,则须用 be able to . He was able to translate the article without a dictionary. 他可以不用词典翻译那篇文章。 Can表示一贯的能力 ,be able to表示客观能力和通过努力可以达到的能力 I can"t swim. But I am sure I will be able to swim through more practicing. The fire spread through the hotel, but everyone was able to get out When the boat sank he was able to swim to the bank 3.may 的用法 1)表示请求、可以、允许。 You may drive the tractor. 你可以开那台拖拉机。 2)当回答由may 引起的问题时,否定答语要用must not,表示“不许可”、“不应该”、“不行”。 May I come in? Yes, you may. No,you can"t No, you may not . No ,you mustn"t No ,you"d better not. 3) may /might 推测性用法 可能 He may be right. He may not come today (可能不) He may /might come tomorrow. , 注意: 1只用于肯定和否定句中,不用于疑问句中。 2 might 比may可能性更小 He might get a job. He may get a job. 3 may no 可能不 can not不可能 He may not come He can"t come 3)表建议(可和as well 连用) You may(might)as well stay where you are. 你还是原地待着好。(may as well 有“还是……的好”的含义) 4)表祝愿 May you be happy! might 1)表过去的“可能”和“允许”多用于间接引语。 She said that he might take her dictionary. 她说他可以拿她的词典去用。 除在间接引语中外,might一般不表示过去的“可能”与“许可”。表过去的“可能”可用could,表过去的“许可”可用were (was) allowed to。 2)表现在的“可能”,其可能性要比may小。 Electric irons could be dangerous; they might give you a severe shock. 电熨斗会有危险,它可能电着人。 3)may (might) + have +done 表示对过去发生行为的推测,含有“想必”、“也许是”的意思。 It may have been true. 这事也许是真的。 He might not have settled the question. 他可能尚未解决那个问题。 4.must 的主要用法。 1)表示必须、必要 We must do everything step by step .我们必须按部就班地做一切事情。 Why must you always bother me? 为什么你偏要打扰我呢。 2)must be + 表语的结构,通常表示猜测,含有“一定”之意。(只用在肯定句中) He must be an honest boy. 他一定是个诚实的男孩。 This must be your room. 这一定是你的房间。 3)must 的否定式有两个:当回答由must引起的问题时,否定答复要用needn"t或don"t have to 表示“不必”、“无须”、“用不着”、“不一定”的意义。当表示“不应该”、“不许可”、“禁止”时,就用must not。 Must I go tomorrow?明天我必须去吗? Yes, please.是的,请吧! No , you needn"t. 不,你不必去。 4)must +have +过去分词的结构,常用在肯定句中,表示对过去发生行为的推测,含有“一定”、“准是”的意思。否定和疑问句用can。 She must have studied English before.她以前一定学过英语。 5.have to的含义与must是很接近的,只是have to 比较强调客观需要,must着重说明主观看法。 I must clean the room.(主观想法) I have to clean the room.(客观需要) 另外,have to 能用于更多时态: We had to be there at ten .我们得在十点钟到那里。 We will have to reconsider the whole thing. 这一切我们将不得不重新加以考虑。 have to 的否定式:don"t have to do 表示“不必做……”之意。 6.ought to 的用法 Ought to 后接动词原形,表义务,但不及must 那样具有信心,如: You don"t look well. You ought to go to see the doctor. 你气色不好,应该去看病。 Ought to 用于否定句,其否定形式可缩略为oughtn"t ,如: You oughtn"t to smoke so much. 你不应该抽这么多烟。 也可以用于疑问句,如: Ought you to smoke so much?你应该抽这样多烟吗? Ought to 在间接引语中表过去时形式不变,如: He said you ought to tell the police. 他说你应该去报告警察。 7.shall的用法 1)用于第一人称征求对方的意见,如: What shall I wear on the journey? 我路上穿什么好呢? Shall we dance? 我们跳舞好吗? 2)shall 用于第二、三人称时表允诺,警告,命令,威胁(现已少见),如: She shall get her share. 她可以得到她的一份。 You shall have it back tomorrow.你明天可以将它拿回。 情态动词should一般不应被认为是情态动词shall的过去式,主要用法有: 1)用于第一人称疑问句中询问对方的意愿,但语气较委婉温和,如: What should we do now? 我们现在该怎么办? 2)表示应该、必须,常与must 换用。例如: We should (must) master a foreign language at least. 我们应当至少掌握一门外语。 3)“should+be+表语”的结构,表示推测或惊奇。例如: They should be back by now. 他们现在应该回来了吧。 I am sorry that she should be so careless. 我感到遗憾她竟会那样粗心。 4)“should+have+过去分词”的结构,表示过去该做而实际上尚未做的动作或行为;其否定则表示发生了不应该发生的行为。其同义结构“ought to have +过去分词”,表示过去“早应该”、“本当”之意,语气较强。例如: I should have thought of that. 这一点我是应当想到的。(但没想到) They should not have left so soon.他们不应当走得这么早。(但已走了) 5) 在“It is natural (strange, natural, necessary, surprised, impossible, important ) that……”句型中,主语从句中的谓语动词要用should +动词原形”表示“理所当然”、“奇怪”、“必要”、“惊异”等的意思。在lest(以免)、for fear (that) (以防)、in case(以备万一)等之后也要用should+动词原形;在advise, sugest, order, demand, request 等的从句中should+do”例如: It is necessary that he(should) be sent there at once. 有必要马上派他到那里去。 It is strange that he should say so. 他会说这样的话真是奇怪。 Let us go at once lest we should be late for the train. 我们马上走吧,以免赶不上火车。 8..will和would的用法 1)表示意志,决心或愿望。例如: Surely we will support all the people in the world in their struggle for peace. 我们一定要支持全世界人民争取和平的斗争。 He would not let me try it . 他不肯让我去试。 2)will表示经常性、习惯性、倾向性,would表示过去的习惯行为。 He will sit there hour after hour looking at the traffic go by. 他会经常一连几个小时坐在那儿观看来往的车辆。 He would come to see me when he was in Beijing. 他在北京时,常来看望我。 3)用于第二人称作主语的疑问句中,表示对对方的请求,would的语气比will委碗 Would/will you kindly tell me the way to the station? 请问到火车站怎么走? 4)表可能性 This will be the book you are looking for. 这可能就是你要找的书。 She eould be about 60 when she died. 他死时大概60岁。 9. need和dare的用法 情态动词need 实义动词 need 现 You need (not) do You (don"t) need to do 在 时 He need (not) do He needs (doesn"t need) to do 过 You needed (didn"t need) to do 去 时 He needed (didn"t need) to do 将 You need (not) do You will (not) need to do 来 时 He need (not) do He will (not) need to do 句型 时态 动词 情态动词dare 实义动词 dare 肯定句 现在时 dare to 少用 dare/dares to do 过去时 dare to 少用 dared to do 否定句 现在时 daren"t/dare not do do/does not dare (to) do 过去时 dared not do did not dare (to) do 疑问句 现在时 Dare he do? Do you/Does he dear (to) do? 过去时 Dared he do? Did he dare (to) do needn"t have v-ed 表示过去做了某事,但没有做的必要, 意为“本没必要…”。例如: You needn"t have waken me up; I don"t have to go to work today 10.表推测的情态动词句子的反意疑问句 He must/may be in the room, isn"t he? He can"t be in the room, is he? He must have finished the work, hasn"t he? He may have done the work last night, didn"t he? :情态动词+行为动词进行式 情态动词+行为动词进行式(即情态动词+ be + v-ing形式),表示推测或评论某动作现在是否正在进行。例如: 1)He must be playing basketball in the room. 2)She may be staying at home. 11.情态动词+行为动词完成进行式 情态动词+行为动词完成进行式(即情态动词+ have been + v-ing 形式),表示推测或评论过去某动作是否正在进行或一直在进行。例如: 1)They should have been meeting to discuss the problem. 2)He may / might have been buying stamps in the post office when you saw him. 12.used to +v, be used to +v-ing和be used to +v (1)used to +v意为“过去常常”,“过去一直”;be used to +v-ing / n(名词)意为“习惯于”;be used to +v意为“被用来(做某事)”。 (2)used to只表示过去,而be used to +v-ing / n可表示现在、过去或将来。例如: 1)He used to smoke. Now he doesn"t. 2)He"s quite used to hard work / working hard. 3)The knife is used to cut bread. 13.用作情态动词的其他短语 would rather, would sooner, would (just) as soon, had rather, had better, had sooner, can not but, may (just) as well等可用作情态动词。例如: 1)The soldier would sooner die than surrender. 2)The brave soldier would as soon die as yield to such an enemy. 3)I"d rather walk than take a bus. 4)If you don"t like to swim, you may just as well stay at home. 注:这些短语后一般直接跟动词原形.would (had) rather, would (had) sooner, would (just) as soon后可跟that 引导的从句,that 常省去,从句要用虚拟语气。对现在和将来的假设用过去时,对过去的假设用过去完成时。例如: 1)I would rather you came on Sunday. 2)I would sooner you hadn"t asked me to speak yesterday.

情态动词有哪些

第六章 情态动词 一.概念: 情态动词是表示能力,义务,必须,猜测等说话人的语气或情态的动词. 二.相关知识点精讲: 1.can 1)表能力 can表能力时意味着凭体力或脑力或技术等可以无甚阻力地去做某事。 I can climb this pole. 我能爬这根杆子。 He is only four , but he can read. 他只有4岁,但已认得字了。 Fire can"t destroy gold. 火烧不毁金子。 因为can不能和其他助动词连用,所以表示将来式时用will be able to You will be able to skate after you have practiced it two or three times. 你练习两三次后就会溜冰了。 2)表可能性 多用于否定与疑问结构中,但也可用在肯定句中。 Can the news be true? 这消息可能是真的吗? It can"t be true. 它不可能是真的。 What can he possibly mean? 他可能是什么意思? can 用在肯定句中表示理论上的可能性(一时的可能)。 A horse in the center of London can cost a lot of money. Attending the ball can be very exciting. The road can be blocked. 这条路可能会不通的。 may 在肯定句中表示现实的可能性。 The road may be blocked. 这条路可能不通了。 3)表示允许(和may意思相近)常见于口语。 Can (May) I come in ? 我能进来吗? Can I smoke here ? 我可以在这里抽烟吗? 2.could的用法 1)表过去的可能和许可,(多用于间接引语中) At that time we thought the story could not be true. 那时我们认为所说的事不可能是真的。 Father said I could swim in the river. 爸爸说我可以在河里游泳。 2)表过去的能力 I could swim when I was only six. 我刚六岁就能游泳。 Could在肯定句中表示过去的能力时,常表抽象的一般的能力。 He could be very naughty when he was a child. 他小时候会是很顽皮的。 3)表“允许”。可表示委婉客气的提出问题或陈述看法 Could I use your bike? Yes, you can. 他会记得那时吗? I"m afraid I couldn"t give you an answer today. 恐怕我今天不能回答你。 The teacher said you could go to the store for sweets. 老师说你可以去商店买糖。 3)Could/can+have done 结构表示对过去发生的事情的“怀疑”或“不肯定”。 could 加完成式还用于肯定句时一般表过去可能完成而却未完成的动作。 Can they have won the basketball match? 他们赢了那场篮球赛吗? What you referred to just now can have made her very sad. 你刚刚所谈到的可能令他很伤心。 You could have completed the task a little earlier. 你本来能早点完成任务的。(但事实上并没有提前完成任务) I could have passed my examination easily but I made too many stupid mistakes. 我本可以轻易通过考试,但我犯了太多不该犯的错误。 如表具体做某一件事的能力时,则须用 be able to . He was able to translate the article without a dictionary. 他可以不用词典翻译那篇文章。 Can表示一贯的能力 ,be able to表示客观能力和通过努力可以达到的能力 I can"t swim. But I am sure I will be able to swim through more practicing. The fire spread through the hotel, but everyone was able to get out When the boat sank he was able to swim to the bank 3.may 的用法 1)表示请求、可以、允许。 You may drive the tractor. 你可以开那台拖拉机。 2)当回答由may 引起的问题时,否定答语要用must not,表示“不许可”、“不应该”、“不行”。 May I come in? Yes, you may. No,you can"t No, you may not . No ,you mustn"t No ,you"d better not. 3) may /might 推测性用法 可能 He may be right. He may not come today (可能不) He may /might come tomorrow. , 注意: 1只用于肯定和否定句中,不用于疑问句中。 2 might 比may可能性更小 He might get a job. He may get a job. 3 may no 可能不 can not不可能 He may not come He can"t come 3)表建议(可和as well 连用) You may(might)as well stay where you are. 你还是原地待着好。(may as well 有“还是……的好”的含义) 4)表祝愿 May you be happy! might 1)表过去的“可能”和“允许”多用于间接引语。 She said that he might take her dictionary. 她说他可以拿她的词典去用。 除在间接引语中外,might一般不表示过去的“可能”与“许可”。表过去的“可能”可用could,表过去的“许可”可用were (was) allowed to。 2)表现在的“可能”,其可能性要比may小。 Electric irons could be dangerous; they might give you a severe shock. 电熨斗会有危险,它可能电着人。 3)may (might) + have +done 表示对过去发生行为的推测,含有“想必”、“也许是”的意思。 It may have been true. 这事也许是真的。 He might not have settled the question. 他可能尚未解决那个问题。 4.must 的主要用法。 1)表示必须、必要 We must do everything step by step .我们必须按部就班地做一切事情。 Why must you always bother me? 为什么你偏要打扰我呢。 2)must be + 表语的结构,通常表示猜测,含有“一定”之意。(只用在肯定句中) He must be an honest boy. 他一定是个诚实的男孩。 This must be your room. 这一定是你的房间。 3)must 的否定式有两个:当回答由must引起的问题时,否定答复要用needn"t或don"t have to 表示“不必”、“无须”、“用不着”、“不一定”的意义。当表示“不应该”、“不许可”、“禁止”时,就用must not。 Must I go tomorrow?明天我必须去吗? Yes, please.是的,请吧! No , you needn"t. 不,你不必去。 4)must +have +过去分词的结构,常用在肯定句中,表示对过去发生行为的推测,含有“一定”、“准是”的意思。否定和疑问句用can。 She must have studied English before.她以前一定学过英语。 5.have to的含义与must是很接近的,只是have to 比较强调客观需要,must着重说明主观看法。 I must clean the room.(主观想法) I have to clean the room.(客观需要) 另外,have to 能用于更多时态: We had to be there at ten .我们得在十点钟到那里。 We will have to reconsider the whole thing. 这一切我们将不得不重新加以考虑。 have to 的否定式:don"t have to do 表示“不必做……”之意。 6.ought to 的用法 Ought to 后接动词原形,表义务,但不及must 那样具有信心,如: You don"t look well. You ought to go to see the doctor. 你气色不好,应该去看病。 Ought to 用于否定句,其否定形式可缩略为oughtn"t ,如: You oughtn"t to smoke so much. 你不应该抽这么多烟。 也可以用于疑问句,如: Ought you to smoke so much?你应该抽这样多烟吗? Ought to 在间接引语中表过去时形式不变,如: He said you ought to tell the police. 他说你应该去报告警察。 7.shall的用法 1)用于第一人称征求对方的意见,如: What shall I wear on the journey? 我路上穿什么好呢? Shall we dance? 我们跳舞好吗? 2)shall 用于第二、三人称时表允诺,警告,命令,威胁(现已少见),如: She shall get her share. 她可以得到她的一份。 You shall have it back tomorrow.你明天可以将它拿回。 情态动词should一般不应被认为是情态动词shall的过去式,主要用法有: 1)用于第一人称疑问句中询问对方的意愿,但语气较委婉温和,如: What should we do now? 我们现在该怎么办? 2)表示应该、必须,常与must 换用。例如: We should (must) master a foreign language at least. 我们应当至少掌握一门外语。 3)“should+be+表语”的结构,表示推测或惊奇。例如: They should be back by now. 他们现在应该回来了吧。 I am sorry that she should be so careless. 我感到遗憾她竟会那样粗心。 4)“should+have+过去分词”的结构,表示过去该做而实际上尚未做的动作或行为;其否定则表示发生了不应该发生的行为。其同义结构“ought to have +过去分词”,表示过去“早应该”、“本当”之意,语气较强。例如: I should have thought of that. 这一点我是应当想到的。(但没想到) They should not have left so soon.他们不应当走得这么早。(但已走了) 5) 在“It is natural (strange, natural, necessary, surprised, impossible, important ) that……”句型中,主语从句中的谓语动词要用should +动词原形”表示“理所当然”、“奇怪”、“必要”、“惊异”等的意思。在lest(以免)、for fear (that) (以防)、in case(以备万一)等之后也要用should+动词原形;在advise, sugest, order, demand, request 等的从句中should+do”例如: It is necessary that he(should) be sent there at once. 有必要马上派他到那里去。 It is strange that he should say so. 他会说这样的话真是奇怪。 Let us go at once lest we should be late for the train. 我们马上走吧,以免赶不上火车。 8..will和would的用法 1)表示意志,决心或愿望。例如: Surely we will support all the people in the world in their struggle for peace. 我们一定要支持全世界人民争取和平的斗争。 He would not let me try it . 他不肯让我去试。 2)will表示经常性、习惯性、倾向性,would表示过去的习惯行为。 He will sit there hour after hour looking at the traffic go by. 他会经常一连几个小时坐在那儿观看来往的车辆。 He would come to see me when he was in Beijing. 他在北京时,常来看望我。 3)用于第二人称作主语的疑问句中,表示对对方的请求,would的语气比will委碗 Would/will you kindly tell me the way to the station? 请问到火车站怎么走? 4)表可能性 This will be the book you are looking for. 这可能就是你要找的书。 She eould be about 60 when she died. 他死时大概60岁。 9. need和dare的用法 情态动词need 实义动词 need 现 You need (not) do You (don"t) need to do 在 时 He need (not) do He needs (doesn"t need) to do 过 You needed (didn"t need) to do 去 时 He needed (didn"t need) to do 将 You need (not) do You will (not) need to do 来 时 He need (not) do He will (not) need to do 句型 时态 动词 情态动词dare 实义动词 dare 肯定句 现在时 dare to 少用 dare/dares to do 过去时 dare to 少用 dared to do 否定句 现在时 daren"t/dare not do do/does not dare (to) do 过去时 dared not do did not dare (to) do 疑问句 现在时 Dare he do? Do you/Does he dear (to) do? 过去时 Dared he do? Did he dare (to) do needn"t have v-ed 表示过去做了某事,但没有做的必要, 意为“本没必要…”。例如: You needn"t have waken me up; I don"t have to go to work today 10.表推测的情态动词句子的反意疑问句 He must/may be in the room, isn"t he? He can"t be in the room, is he? He must have finished the work, hasn"t he? He may have done the work last night, didn"t he? :情态动词+行为动词进行式 情态动词+行为动词进行式(即情态动词+ be + v-ing形式),表示推测或评论某动作现在是否正在进行。例如: 1)He must be playing basketball in the room. 2)She may be staying at home. 11.情态动词+行为动词完成进行式 情态动词+行为动词完成进行式(即情态动词+ have been + v-ing 形式),表示推测或评论过去某动作是否正在进行或一直在进行。例如: 1)They should have been meeting to discuss the problem. 2)He may / might have been buying stamps in the post office when you saw him. 12.used to +v, be used to +v-ing和be used to +v (1)used to +v意为“过去常常”,“过去一直”;be used to +v-ing / n(名词)意为“习惯于”;be used to +v意为“被用来(做某事)”。 (2)used to只表示过去,而be used to +v-ing / n可表示现在、过去或将来。例如: 1)He used to smoke. Now he doesn"t. 2)He"s quite used to hard work / working hard. 3)The knife is used to cut bread. 13.用作情态动词的其他短语 would rather, would sooner, would (just) as soon, had rather, had better, had sooner, can not but, may (just) as well等可用作情态动词。例如: 1)The soldier would sooner die than surrender. 2)The brave soldier would as soon die as yield to such an enemy. 3)I"d rather walk than take a bus. 4)If you don"t like to swim, you may just as well stay at home. 注:这些短语后一般直接跟动词原形.would (had) rather, would (had) sooner, would (just) as soon后可跟that 引导的从句,that 常省去,从句要用虚拟语气。对现在和将来的假设用过去时,对过去的假设用过去完成时。例如: 1)I would rather you came on Sunday. 2)I would sooner you hadn"t asked me to speak yesterday.

dollar是不是情态动词

dollar是名词美元

情态动词的用法,详细介绍一下,谢谢

情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语。 情态动词数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) . 情态动词的位置: 情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词则在主语之前。 情态动词的特点: 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not"。 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来。 情态动词的用法: can (could) 表示说话人能,可以,同意,准许,以及 客观条件许可,could 为 can 的过去式。 Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测。 must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替。 must + have + 过去分词,表示现在对过去事物的推测。 must 和 have to 的区别: must 表示说话人的主观思想, have to 表示客观需要。 need 是一个情态动词, 他的用法完全和其他情态动词一样, 但 need 还可当作实义动词使用, 这时 need 就象其他动词一样,有第三人称,单复数, 后面加带 to 的动词等特性。 needn"t + have + 过去分词 表示过去做了没必要做的事情。 dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等。 ought 应当,应该 后面跟带有 to 的动词不定式。 ought + to have done 句型。指过去动作,表示一件事情该做而未做。 ought not to have done 句型。表示一件不该做的事情却做了。 will (would)决心,愿望。 would 为 will 的过去式, will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气。 Shall, should表示命令,警告,允诺,征求,劝告,建议惊奇。 have to,不得不,必须,表示客观条件只能如此, 而must 则表示主观思想必须

at least位置,情态动词前后都可以?助动词前后都可以?

如何确定at least放在情态动词前后或者助动词前后,建议您去找含有at least短语的两个典型例句,然后熟练记忆,以后再遇到这种问题,脑海中就是这两个句子。英语的学习很多时候都是靠熟练记忆和不断积累

情态动词英语说课稿

一、教学分析:1. 位置和内容:这是初中的一个较重要也有难度的知识点,作为动词中的一类,以及虚拟语气中必定会用到的情态动词。如何使用情态动词can(could) ,must,have to, may(might),shall(should),will,dare,need,aught to等是本次课程的重点内容。教学内容是介绍情态动词的定义、特点、以及最重要的用法;最后加以练习进行巩固。2.教学重点: 学会运用情态动词can(could), must,have to, may(might),shall(should),will(would),dare,need,aught to等的用法以及各个相近情态动词间的区分。3.教学难点: 各个情态动词的用法区分。 二、教学目标: 1. 知识目标:要求学生掌握使用表示猜测的情态动词。2. 能力目标:学会情态动词在实际生活中的运用,会用,用正确。3. 情感目标:让学生爱上英语课堂,鼓励他们学习英语的自信心。4. 学习策略目标:设法使学生掌握使用英语进行造句,增强上课的积极性。三. 教学过程的分析: 步骤1---组织师生互相问候; 步骤2---检测预习与复习(目的是导入情态动词的定义和特点)1)由二则谜语引入要教的情态动词:1.You can"t catch his body; you can"t see his shadow.When strong, he shakes the house,when weak, the tree leaves. 2.What can you catch but not throw?让学生猜,猜完以后,说出这里面都有一个can,这个时候它的意思是什么以及在这里的作用,由此导入主题。(5分钟) 步骤3 解释情态动词:情态动词是一种本身有一定的词义,表示说话人的情绪、态度或语气的动词,但不能单独作谓语,只能和其他动词原形构成谓语;情态动词的特点:1、情态动词不能表示正在发生或已经发生的事情,只能表示期待或估计发生的事情;2、情态动词除:ought to,have to以外,后面只能接不带to的不定式;3、情态动词没有人称,数的变化(have to除外,即情态动词第三人称不加s;4、情态动词没有非谓语形式,既没有不定式,分词等形式;5、情态动词不能单独使用而必须跟后面的动词原形构成谓语。(6分钟) 步骤4 情态动词的用法。常见的情态动词有can(could), must,have to, may(might),shall(should),will(would),dare,need,aught to等.(4分钟)1. can与could(13分钟)1)表示能力Eg:I can dance, four eyes can see more than two.(一道厦门市中考题):You needn"t write letters to your cousin,you -----------chat with her by QQ instead.A.must B.have to C.canCan只有一般现在时和一般过去时(一般过去时用could) Eg:Could Merlin read before she went to school.这女孩上学期能识字吗?注:当表示“经过努力才得以做成功某事”时应用be able to,不能用can,如:She was able to get high grade after studying hard.2)表示请求和允许。---Can I go now?---Yes,you can./No,you can"t.此时可以用could代替。与can的区别:can表示一般的请求,语气较随便,常用于熟人之间或长辈对晚辈,上级对下级的场合;could表示礼貌地请求,语气更委婉,常用于非熟人之间或晚辈对长辈,下级对上级的场合。如:--Could I help you? --Yes,you can./No,I am afraid not.3)表示推测,可能性(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。Where can(could) she have gone to?She can"t (couldn"t) be over 16.How can you be so careless? 2. Must,have to(12)1)must是说话人的主观看法,而have to则强调客观需要.must只要一般现在时,have to有更多的形式。The play isn"t interesting,I really must go now.I had to work when I was your age.08年中考题)---I can"t give up smoking,doctor. ---For your health,I am afraid yoi_________.A.may B.can C.have to2)表示必须,必要。We must do everything steo by step.我们做什么都得循序渐进地做。在回答引出的问句时,如果是否定的,不能用must,(不准,禁止),而用needn"t,don"t have to(不必)。--Must we hand in our exercise books today?--Yes,you must.--No,you don"t have to/you needn"t.3)表示推测、可能性(只用于陈述句中)You are Tom"s good friend,so you must know what he likes best.Your mother must be waiting for you now.09中考题)Look at Mary,she keeps walking here and there before talking in front of class.she___________be very nervous.A.can"t B.must C.need 3.may,might(8分钟)1)表示请求和允许。might 比may 更委婉,而不是过去式。否定回答可用can"t或mustn"t.表示“不可以,禁止“。--May/Might I smoke in this room?--No,you mustn"t.--May/Might I take this book out of the room.--Yes.you can.(No,you can"t/mustn"t)用may I ……?征询对方许可时比较正式和客气,而用Can I …?在口语中更常见。2)用于祈使句,表示祝愿。May you succeed!3)表示推测、可能性(不用于疑问句中)might不是过去式,它所表示的可能性比may小。He may/might be busy now.Your mother may/might not know the truth. 4.dare,need(8分钟)1)dare作情态动词用时,常用于疑问句、否定句和条件从句中,过去式形式为dared.How dare you day I am unfair?He daren"t speak English before such a crowd,dare he?If we dared not go there that day,we couldn"t get the beautiful flower.2)need作情态动词用时,常用于疑问句。否定句。在肯定句中一般用must.have to.ought to.should代替。You needn"t come so early.--Need I finish the work today?--Yes,you must/No,you needn"t.3)dare和neeed作实义动词时,有人称和数的变化。在肯定句中,dare后面常接带to的不定式。在疑问句和否定句中,dare后面可接带to或不带to的不定式。而need后面只能接带to的不定式。 5.shall,should(8分钟)What shall we do this evening?2)shall用于第二,第三人称,表示说话人给对方的命令,警告,允诺,决心或威胁。You shall do what I say(命令)You shall fail id you don"t workd hard.(警告)He shall have the book when I finish it.(允诺)He shall be punished.(威胁)Nothing shall stop us from carrying out the plan.(决心) 6.Will,would(8分钟)1)比奥斯建议,请求等,would等委婉。Will/would you pass me the ball,please?2)表示意志、愿望和决心。I will never do that again.They asked him if he would go abroad.3)would 表示过去反复发生的动作和某种倾向.would表示过去习惯比used to正式,而且没有“现已无此习惯”的含义。During the vacation,he would visit ne every the other day.4)表示估计和猜想。It would be about ten o"clock when she left home. 7.should,ought to(8分钟)1)should,ought to表示“应该”,ought to表示义务或责任,比should语气重。I should help her because she is in trouble.You ought to take care of the baby.2)表示劝告、建议和命令。Should,ought to,可通用,但在疑问句中常用should.You shoud/ought to go to class right away.Shoukd I open the window?3)表示推测Should,ought to,(客观推测)。must(客观推测)He must be home by now。(断定他已到家)He ought to/should be home by now.(不太肯定)This is where the oil must be.(直爽)This is where the oil ought to/should be.(含蓄) 以上共计80分钟剩下的时间写练习随堂练习:(40道单选题) 3.情态动词句型(1)表示对现在情况的推测(情态动词 + v.)肯定:must/may/might + be/do/be doing否定:can/could + not + be/do/be doing疑问:Can/Could + sb. + be/do/be doing(2)表示对过去情况的推测(情态动词 + have done)肯定:must/may/might + have been否定:can/could + not + have been/done疑问:Can/Could + sb. + have been/have done注意:表示推测(可能性从大到小):must,can,could,may,might。

英语情态动词有哪些 情态动词的用法口诀

学英语最长用到的语法和词汇就是情态动词了,下文我给大家整理了英语中情态动词的分类及用法,供参考! 英语情态动词分类及用法归纳 一、 can, could 1) 表示能力(体力、知识、技能)。 Can you lift this heavy box?(体力) Mary can speak three languages.(知识) Can you skate?(技能) 此时可用be able to代替。Can只有一般现在时和一般过去式;而be able to则有更多的时态。 I"ll not be able to come this afternoon. 当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。如: He was able to go to the party yesterday evening in spite of the heavy rain. 2) 表示请求和允许。 -----Can I go now? ----- Yes, you can. / No, you can"t. 此时可与may互换。在疑问句中还可用could,might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。 ---- Could I come to see you tomorrow? ---- Yes, you can. ( No, I"m afraid not. ) 3) 表示客观可能性(客观原因形成的能力)。 They"ve changed the timetable, so we can go by bus instead. This hall can hold 500 people at least. 4) 表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。 Can this be true? This can"t be done by him. How can this be true? 二、 may, might 1) 表示请求和允许。might比 may语气更委婉,而不是过去式。否定回答时可用can"t或mustn"t,表示“不可以,禁止”。 ----Might/ May I smoke in this room? ---- No, you mustn"t. ---- May/Might I take this book out of the room? ---- Yes, you can. (No, you can"t / mustn"t. ) 用May I...?征徇对方许可时比较正式和客气,而用Can I...?在口语中更常见。 2)用于祈使句,表示祝愿。 May you succeed! 3) 表示推测、可能性(不用于疑问句)。 might不是过去式,它所表示的可能性比may小。 1.He may /might be very busy now. 2.Your mother may /might not know the truth. 三、 must, have to 1) 表示必须、必要。 You must come in time. 在回答引出的问句时,如果是否定的,不能用mustn"t(禁止,不准),而用needn"t, don"t have to(不必). ---- Must we hand in our exercise books today? ---- Yes, you must. ---- No, you don"t have to / you needn"t. 2) must是说话人的主观看法, 而have to则强调客观需要。Must只有一般现在时, have to 有更多的时态形式。 1. he play isn"t interesting, I really must go now. 2. I had to work when I was your age. 3) 表示推测、可能性(只用于肯定的陈述句) 1. You"re Tom"s good friend, so you must know what he likes best. 2. Your mother must be waiting for you now. 四、 dare, need 1) dare作情态动词用时, 常用于疑问句、否定句和条件从句中, 过去式形式为dared。 1. How dare you say I"m unfair? 2. He daren"t speak English before such a crowd, dare he? 3. If we dared not go there that day, we couldn"t get the beautiful flowers. 2) need 作情态动词用时, 常用于疑问句、否定句。在肯定句中一般用must, have to, ought to, should代替。 1.You needn"t come so early. 2. ---- Need I finish the work today? ---- Yes, you must. / No, you needn"t. 3) dare和 need作实义动词用时, 有人称、时态和数的变化。在肯定句中,dare后面常接带to的不定式。在疑问句和否定句中,dare后面可接带to或不带to的不定式。而need后面只能接带to的不定式。 1. I dare to swim across this river. 2. He doesn"t dare (to) answer. 3. He needs to finish his homework today. 五、 shall, should 1) shall 用于第一人称,征求对方的意见。 What shall we do this evening? 2) shall 用于第二、三人称,表示说话人给对方的命令、警告、允诺或威胁。 1. You shall fail if you don"t work hard.(警告) 2. He shall have the book when I finish it.(允诺) 3. He shall be punished.(威胁) 六、 will, would 1) 表示请求、建议等,would更委婉。 Will / Would you pass me the ball, please? 2) 表示意志、愿望和决心。 1. I will never do that again. 2. They asked him if he would go abroad. 3) would表示过去反复发生的动作或某种倾向。would表示过去习惯时比used to正式,且没有“现已无此习惯”的含义。 1. During the vacation, he would visit me every other day. 2. The wound would not heal. 4) 表示估计和猜想。 It would be about ten o"clock when she left home. 七、 should, ought to 1) should, ought to表示“应该”,ought to表示义务或责任,比should语气重。 1. I should help her because she is in trouble. 2. You ought to take care of the baby. 2) 表示劝告、建议和命令。should, ought to可通用,但在疑问句中常用should。 1. You should / ought to go to class right away. 2. Should I open the window? 3) 表示推测 should , ought to (客观推测), must(主观推测)。 1.He must be home by now. (断定他已到家) 2.He ought to/should be home by now.(不太肯定) 3. This is where the oil must be.(直爽) 4. This is where the oil ought to/should be.(含蓄) 八、 情态动词+不定式完成式(have done) 1) can / could + have done在肯定句中表示“本来可以做而实际上能做某事”,是虚拟语气;在疑问句或否定句中表示对过去行为的怀疑或不肯定, 表示推测。 1. You could have done better, but you didn"t try your best. (虚拟语气) 2. He can"t have been to that town.(推测) 3. Can he have got the book?(推测) 2) may / might +不定式完成式(have done) 表示对过去行为的推测。不能用于疑问句中,没有虚拟语气的用法。Might所表示的可能性比may小。 1. He may not have finished the work . 2. If we had taken the other road, we might have arrived earlier. 3)must +不定式完成式(have done) 用于肯定句中,表示对过去行为的推测。意为“一定、想必”。其疑问、否定形式用can,can"t代替。参看1) can / could + have done表示推测。 1. You must have seen the film Titanic. 2. He must have been to Shanghai. 4)should +不定式完成式(have done) 用于肯定句中,表示对过去行为的推测。 He should have finished the work by now。 表示“本应该做而实际上没有做某事”,其否定式表示某种行为本不该发生却发生了。可以与ought to +不定式完成式(have done)互换。 1. You ought to / should have helped him. (but you didn"t.) 2. She shouldn"t have taken away my measuring tape, for I wanted to use it. 5) needn"t +不定式完成式(have done) 表示“本来不必做而实际上做了某事”。 You needn"t have watered the flowers, for it is going to rain. 6) will +不定式完成式(have done) 主要用于第二、三人称,表示对已完成的动作或事态的推测。 He will have arrived by now. 情态动词口诀顺口溜 情态动词要记牢;动词原形来跟梢。 不管人称单复数;现在过去乐逍遥。 can表能力和许可;也许可能may来表; 必须一定must;should应该来报到。 回答不须needn"t;mustn"t为不必要。 否定只要接not;疑问赶紧往前跑。

情态动词的否定形式分别是什么

情态动词的否定形式:一、情态动词+not,以下为其缩写形式:can can"t could couldn"t would wouldn"t should shouldn"tmay mayn"t might mightn"t need needn"t must mustn"tdare daren"t dared not ought oughtn"t oughted not have(had, has) haven"t (hadn"t hasn"t)shall shan"t will won"t二、情态动词+否定副词,如 never, impossibly 等。

may,might区别是什么? 很多情态动词都有这样的情况,比如:can,could. will,would. shall,should.等 它们

情态动词的定义: 情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语。 We can be there on time tomorrow. 我们明天能按时去那儿。 情态动词数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) . 情态动词的位置: 情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词则在主语之前。 I can see you. Come here. 我能看见你,过来吧. 情态动词的特点: 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not"。 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来。 He could be here soon. 他很快就来。 情态动词的用法: can (could) 表示说话人能,可以,同意,准许,以及 客观条件许可,could 为 can 的过去式。 Can you pass me the books? 你能给我递一下书吗 ? can 和could 只能用于现在式和过去式两种时态,将来时态用 be able to 来表示。 He could help us at all. 他完全可以帮助我们。 With the teacher"s help,I shall be able to speak English correctly. 由于老师的帮助,我将能准确地讲英语。 may (might) 可以, 表示说话人同意,许可或请求对方许可。 You may take the book home. 你可以把书带回家去. He said he might lend us some money. 他说他可以借给我们一些钱。 may 否定式为 may not, 缩写形式是 mayn"t. might 是may 的过去式, 有两种用法, 一种表示过去式,一种表示虚拟语气, 使语气更加委婉, 客气或对可能性的怀疑。 He told me he might be here on time. 他说他能按时间来。 Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测。 must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替。 I must finish my work today. 我今天必须完成我的工作。 must + have + 过去分词,表示现在对过去事物的推测。 He must have told my parents about it. 他一定把这件事情告诉我父母亲了。 must 和 have to 的区别: must 表示说话人的主观思想, have to 表示客观需要。 You must do it now. 你必需现在就干。(说话人认为必须现在干) I have to go now.我得走了。(客观条件必须现在走) need 需要 多用在否定式或疑问句中. Need I attend the meeting tomorrow? 我需要明天参加会议吗? need 是一个情态动词, 他的用法完全和其他情态动词一样, 但 need 还可当作实义动词使用, 这时 need 就象其他动词一样,有第三人称,单复数, 后面加带 to 的动词等特性。 I need a bike to go to school.我上学需要一辆自行车。 needn"t + have + 过去分词 表示过去做了没必要做的事情。 You needn"t have taken it seriously. 这件事情你不必太认真。 dare 敢 多用在否定或疑问句中。The little girl dare not speak in public.小女孩不敢在公众面前说话。 dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等。Do you dare to walk in the dark? 你敢黑夜走路吗? ought 应当,应该 后面跟带有 to 的动词不定式。 You ought to read these books if you want to know how to repair the motorcar. 如果你想知道如何修理汽车,你应该读这些书。 You ought to bring the child here. 你应该把孩子带来。 ought + to have done 句型。指过去动作,表示一件事情该做而未做。 You ought to have been here yesterday. 你昨天就应该来。 ought not to have done 句型。表示一件不该做的事情却做了. You ought not to have taken the book out of the reading-room. 你不应该把书带出阅览室。will (would)决心,愿望。 would 为 will 的过去式, 可用于各人称。 I"ll do my best to catch up with them. 我要尽全力赶上他们。 will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气。 It"s hot. Will you open the windows? 天气太热了,你能打开窗户吗? Shall, should表示命令,警告,允诺,征求,劝告,建议惊奇。 You should hand in the exercise book. have to,不得不,必须,表示客观条件只能如此, 而must 则表示主观思想必须。 I have to go now.

情态动词的用法

情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语 一、 can, could 1) 表示能力(体力、知识、技能)。 Can you lift this heavy box?(体力) Mary can speak three languages.(知识) Can you skate?(技能) 此时可用be able to代替。Can只有一般现在时和一般过去式;而be able to则有更多的时态。 I"ll not be able to come this afternoon. 当表示“经过努力才得以做成功某事”时应用be able to,不能用Can。如: He was able to go to the party yesterday evening in spite of the heavy rain. 2) 表示请求和允许。 -----Can I go now? ----- Yes, you can. / No, you can"t. 此时可与may互换。在疑问句中还可用could, might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。 ---- Could I come to see you tomorrow? ---- Yes, you can. ( No, I"m afraid not. ) 3) 表示客观可能性(客观原因形成的能力)。 They"ve changed the timetable, so we can go by bus instead. This hall can hold 500 people at least. 4) 表示推测(惊讶、怀疑、不相信的态度),用于疑问句、否定句和感叹句中。 Can this be true? This can"t be done by him. How can this be true? 二、 may, might 1) 表示请求和允许。might比 may语气更委婉,而不是过去式。否定回答时可用can"t 或mustn"t,表示“不可以,禁止”。 ----Might/ May I smoke in this room? ---- No, you mustn"t. ---- May/Might I take this book out of the room? ---- Yes, you can. (No, you can"t / mustn"t. ) 用May I...?征徇对方许可时比较正式和客气,而用Can I...?在口语中更常见。 2)用于祈使句,表示祝愿。 May you succeed! 3) 表示推测、可能性(不用于疑问句)。 might不是过去式,它所表示的可能性比may小。 1.He may /might be very busy now. 2.Your mother may /might not know the truth. 三、 must, have to 1) 表示必须、必要。 You must come in time. 在回答引出的问句时,如果是否定的,不能用mustn"t(禁止,不准),而用needn"t, don"t have to(不必). ---- Must we hand in our exercise books today? ---- Yes, you must. ---- No, you don"t have to / you needn"t. 2) must是说话人的主观看法, 而have to则强调客观需要。Must只有一般现在时, have to 有更多的时态形式。 1. he play isn"t interesting, I really must go now. 2. I had to work when I was your age. 3) 表示推测、可能性(只用于肯定的陈述句) 1. You"re Tom"s good friend, so you must know what he likes best. 2. Your mother must be waiting for you now. 四、 dare, need 1) dare作情态动词用时, 常用于疑问句、否定句和条件从句中, 过去式形式为dared。 1. How dare you say I"m unfair? 2. He daren"t speak English before such a crowd, dare he? 3. If we dared not go there that day, we couldn"t get the beautiful flowers. 2) need 作情态动词用时, 常用于疑问句、否定句。在肯定句中一般用must, have to, ought to, should代替。 1.You needn"t come so early. 2. ---- Need I finish the work today? ---- Yes, you must. / No, you needn"t. 3) dare和 need作实义动词用时, 有人称、时态和数的变化。在肯定句中,dare后面常接带to的不定式。在疑问句和否定句中,dare后面可接带to或不带to的不定式。而need后面只能接带to的不定式。 1. I dare to swim across this river. 2. He doesn"t dare (to) answer. 3. He needs to finish his homework today. 五、 shall, should 1) shall 用于第一人称,征求对方的意见。 What shall we do this evening? 2) shall 用于第二、三人称,表示说话人给对方的命令、警告、允诺或威胁。 1. You shall fail if you don"t work hard.(警告) 2. He shall have the book when I finish it.(允诺) 3. He shall be punished.(威胁) 六、 will, would 1) 表示请求、建议等,would更委婉。 Will / Would you pass me the ball, please? 2) 表示意志、愿望和决心。 1. I will never do that again. 2. They asked him if he would go abroad. 3) would表示过去反复发生的动作或某种倾向。would表示过去习惯时比used to正式,且没有“现已无此习惯”的含义。 1. During the vacation, he would visit me every other day. 2. The wound would not heal. 4) 表示估计和猜想。 It would be about ten o"clock when she left home. 七、 should, ought to 1) should, ought to表示“应该”,ought to表示义务或责任,比should语气重。 1. I should help her because she is in trouble. 2. You ought to take care of the baby. 2) 表示劝告、建议和命令。should, ought to可通用,但在疑问句中常用should。 1. You should / ought to go to class right away. 2. Should I open the window? 3) 表示推测 should , ought to (客观推测), must(主观推测)。 1.He must be home by now. (断定他已到家) 2.He ought to/should be home by now.(不太肯定) 3. This is where the oil must be.(直爽) 4. This is where the oil ought to/should be.(含蓄)

有哪些情态动词?(越完整越好,对于初中高中常用的尽量提出,如:may、can)再造一个例句。谢谢。

你好:情态动词主要有: can (could) may (might) must need ought to dare (dared) shall (should) will (would) 造句: I think I can solve this problem by myself. You may miss the early bus if you don"t hurry up . I must go now because I have to finish my homework before 11.

情态动词need 、dare和实义动词need to do,dare to do怎么区分啊,什么时候要用情态动词什么守候用实义动

①对于need do,need to do和need doing:need do(否定needn"t do):need是做情态动词 ,后跟动词原形need to do (否定don"t need to do):需要做某事 ,主语往往是人need doing :是需要被做有被动的意思 ,主语往往是物 ,意思是某物需要被...=need to be done②对于dare do和dare to do:dare do(否定dare not do): dare是情态动词,后面跟动词原形而dare to do(否定don"t dare to do): dare是一个实义动词,后面是to do sth,这里的dare可以有时态和人称的变化。

为什么used to ought to, dare to, have to也是情态动词?

为您解答这些你可以说是属于半情态动词,是和情态动词相对而言的,好像是张道真提出的提法,其实意思就是用法和意义类似情态动词而已。这种界定不是很绝对,不为所有人认同,或者划分方法因人而异。

情态动词与实义动词的区别 need与need to,dare与dare to

情态动词的定义: 情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语. We can be there on time tomorrow. 我们明天能按时去那儿. May I have your name? 我能知道你的名字吗? Shall we begin now? 我们现在就开始吗? 实义动词 有完整词汇意义的动词叫做实义动词.实义动词分跟有宾语的及物动词和不跟宾语的不及物动词.连系动词也是实义动词,但连系动词不能单独构成谓语,其后必须跟有表语. 1.及物动词和不及物动词 有些及物动词只有一个宾语(单宾语),有些可跟间接宾语和直接宾语(双宾语),或跟宾语和宾语补足语(复合宾语),例: I like the book very much.我很喜欢这本书. My teacher lend me some books.我的老师借给我一些书.(双宾语) I"ll let you know as soon as I hear from her.我一接到她的信就通知你.(复合宾语) 而不及物动词不带宾语,例: The good news soon spread all over the city.好消息很快传遍全城. 许多动词既可作及物动词,又可作不及物动词,例: He turned his head.他把头转过去了.(及物) She turned and walked to the house.她转身走回家.(不及物) 有些不及物动词与及物动词本义相同,但形式不同,例: lie 躺(不及物); lay 放(及物) The book is lying on the table.书在桌上. He laid the book on the table.他把书放在桌上. 有些及物动词用反身代词作宾语,我们把它们称为反身动词,例: He can"t express himself in English.他无法用英语表达自己的想法. The boy dressed himself quickly.那男孩很快穿好了衣服. 有些不及物动词用作及物动词时需用其同源的名词作宾语,称作同源宾语,例: He dreamed a sweet dream last night.昨夜他作了个美梦. The people are living a happy life.人民过着幸福的生活. She sighed a deep sigh.她深深地叹了一口气. 注意:有些不及物动词后面可接形容词或名词,这时的用法相当于连系动词,例: The tree grows tall.这棵树长得很高. He returned an old man after 50 years abroad.在国外过了五十年后他回来时已是个老头了. 实义动词、连系动词、情态动词和助动词 动词从其含义来分,有实义动词(notional verb),连系动词(1ink verb),情态动词(modal verb)和助动词(auxiliary verb)四类. 1. 实义动词 实义动词有完全的词义,并能独立作谓语动词. 如:The sun shone brightly this morning.今天早晨阳光灿烂. He likes to go for a long walk on sundays.他喜欢星期日出去作长距离散步. We have a big TV set in the club.我们俱乐部有台大电视机. 2. 连系动词 连系动词在句中作谓语动词,后面跟表语.英语连系动词有be(是),seem(似乎),look(看来),keep(保持),become(变成),get(变得),grow(变得),feel(感到),turn(变得,变成),appear(显得),remain(仍旧是)等.如: It is never too late to mend.改过不嫌晚. It was a close game.那场球赛比分很接近. The children in this nursery look very healthy.这个托儿所的孩子看起来都非常健康. Keep quiet,please!请安静!, The tape recorder seems all right.这台录音机好像没有毛病. Later he became a doctor.他后来成为一名医生. The problem remained unsolved until last year.问题到去年才解决. [注一]下面句子中的come和go也是连系动词.如: The old man"s dream has come true.这位老人的梦想实现了. Something has gone wrong with the truck.卡车出毛病了. [注二]有些连系动词如seem, appear等后面常跟to be.如: The new text seens to be easy,but actually it is rather difficult.这篇新课文好像很容易,其实相当难. She appears to be the girl"s sister.她似乎是那女孩的姐姐. 3. 情态动词 情态动词有can (能),may (可以,也许),must(必须)等及其过去式could,might等,表示能力、义务、必要、猜测等说话人的语气或情态.情态动词只能和主要动词一起构成谓语动词. [注]关于情态动词详见第十一章. 4. 助动词 助动词有shall,will,have,be,should,would, do等.它们只能和主要动词一起构成各种时态、语态、语气等动词形式,以及否定和疑问等结构中的谓语动词. You must obey the school rules. 你必须遵守校规. 情态动词数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) . 情态动词的位置: 情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词则在主语之前. I can see you. Come here. 我能看见你,过来吧. He must have been away. 他一定走了. What can I do for you? 你要什么? How dare you treat us like that! 你怎能那样对待我们! 情态动词的特点: 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not". 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来. He could be here soon. 他很快就来. We can"t carry the heavy box. 我们搬不动那箱子. I"m sorry I can"t help you. 对不起,我帮不上你. 情态动词的用法: can (could) 表示说话人能,可以,同意,准许,以及 客观条件许可,could 为 can 的过去式. Can you pass me the books? 你能给我递一下书吗 ? Could you help me, please? 请问,你能帮助我吗? What can you do? 你能干点什么呢? Can you be sure? 你有把握吗? can 和could 只能用于现在式和过去式两种时态,将来时态用 be able to 来表示. He could help us at all. 他完全可以帮助我们. With the teacher"s help,I shall be able to speak English correctly. 由于老师的帮助,我将能准确地讲英语. may (might) 可以, 表示说话人同意,许可或请求对方许可. You may take the book home. 你可以把书带回家去. May I come in? 我可以进来吗? May I use your dictionary? 我可以用你的词典吗? You may put on more clothes. 你可以多穿点衣服. He said he might lend us some money. 他说他可以借给我们一些钱. may 否定式为 may not, 缩写形式是 mayn"t. might 是may 的过去式, 有两种用法, 一种表示过去式,一种表示虚拟语气, 使语气更加委婉, 客气或对可能性的怀疑. He told me he might be here on time. 他说他能按时间来. Might I borrow some money now. 我可以借点钱吗? He might be alive. 他可能还活着. Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测. must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替. I must finish my work today. 我今天必须完成我的工作. You mustn"t work all the time. 你不能老是工作. Must I return the book tomorrow? 我必须明天还书吗? After such a long walk, you must be tired. 走了这么长的路,你一定困了. He must be the man I am looking for. 他一定是我要找的人. He had to go because of somebody"s calling him that day. 那天他要走是因为有人叫他. must + have + 过去分词,表示现在对过去事物的推测. He must have told my parents about it. 他一定把这件事情告诉我父母亲了. He must have received my letter now. 他现在一定收到我的信了. It"s six o"clock already, we must have been late again. 已经六点钟了,我们一定又迟到了. must 和 have to 的区别: must 表示说话人的主观思想, have to 表示客观需要. You must do it now. 你必需现在就干.(说话人认为必须现在干) I have to go now. 我得走了.(客观条件必须现在走) need 需要 多用在否定式或疑问句中. Need I attend the meeting tomorrow? 我需要明天参加会议吗? You need not hand in the paper this week. 这一周你不必交论文. need 是一个情态动词, 他的用法完全和其他情态动词一样, 但 need 还可当作实义动词使用, 这时 need 就象其他动词一样,有第三人称,单复数, 后面加带 to 的动词等特性. I need a bike to go to school. 我上学需要一辆自行车. Do you need a dictionary? 你需要词典吗? She needs a necklace. 她需要一条项链. needn"t + have + 过去分词 表示过去做了没必要做的事情. You needn"t have taken it seriously. 这件事情你不必太认真. dare 敢 多用在否定或疑问句中. The little girl dare not speak in public. 小女孩不敢在公众面前说话. Dare you catch the little cat? 你敢抓小猫吗? dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等. Do you dare to walk in the dark? 你敢黑夜走路吗? He doesn"t dare to tell the teacher what happened that day. 他不敢告诉老师那天发生的事. ought 应当,应该 后面跟带有 to 的动词不定式. You ought to read these books if you want to know how to repair the motorcar. 如果你想知道如何修理汽车,你应该读这些书. You ought to bring the child here. 你应该把孩子带来. ought + to have done 句型.指过去动作,表示一件事情该做而未做. You ought to have been here yesterday. 你昨天就应该来. ought not to have done 句型.表示一件不该做的事情却做了. You ought not to have taken the book out of the reading-room. 你不应该把书带出阅览室. will (would)决心,愿望. would 为 will 的过去式, 可用于各人称. I"ll do my best to catch up with them. 我要尽全力赶上他们. I"ll never do it again, that"s the last time. 我再不会做那件事情了,这是最后一次. He said he would help me. 他说他会帮助我. will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气. It"s hot. Will you open the windows? 天气太热了,你能打开窗户吗? Will you help me to work it out? 你能帮我解这道题吗? Would you like some coffee? 给你来点咖啡怎样? Shall, should表示命令,警告,允诺,征求,劝告,建议惊奇. You should hand in the exercise book. 你应该交作业本儿了. This should be no problem. 这应该没问题. Shall we go now. 我们现在可以走了吗? Why should I meet him? 为什么我要见他? have to,不得不,必须,表示客观条件只能如此, 而must 则表示主观思想必须. I have to go now. 我现在得走了. I have to cook for my child. 我得给孩子做饭. You must be here on time next time. 你下次一定要按时来. We must go to get the timetable ourselves. 我们一定要自己去拿时刻表.

怎样区分实意动词和情态动词

CAN COULD WOULD什么的是情态动词 很好区分的 学学就都了解了

英语情态动词用法与归纳

不会

情态动词的用法

Grammar—Modal-verbⅠ.情态动词一、can/could1.表示能力时was/were able to 具体做成某件事(=managed to do )could 只表示能够2.can+感官动词can taste/ see/ hear/ smell/ feel/ believe/ decide/ understand3.can表示惊讶、不敢相信Eg: How can you do like this?4.cannot but do cannot choose but docannot help but do Eg: I cannot but feel sorry for her.I cannot choose but follow her advice.5.cannot… over/ enough/ too …都不过分;越…越好Eg: You cannot over praise him.6.理论上的可能性:Eg: Accidents can happen on such rainy days.Anyone can make mistakes.The temperature can fall to -40℃.7.can"t 表示否定推测:Eg: It can"t be him, for he has gone to Paris yesterday.不能用mustn"t8.can/could 表示允许、请求Can/May I help you?I wonder if I can/could do sth.(此处could不表示时态)-Can/Could/May I use…?-Yes, you can/may.-No, you can"t/ may not/ mustn"t.(题目选项中如果表否定允许有mustn"t就选mustn"t)You"d better not.(may问一般不用may回答)I"d rather you didn"t.9.can/could (not) have done(1)本能做、没能够(2)过去可能会做、过去不可能做Eg: He could have killed Harry Potter, but he didn"t.(过去本能够)He couldn"t have killed him 17 years ago, and he cannot do it now, either.(过去没能够)Can he have gone to his aunt"s ?(过去可能会做)He cannot have forgotten it. (过去不可能)二、may/might1.may /might 推测性用法 可能He may be right.He may not come today (可能不)He may /might come tomorrow.注意:只用于肯定和否定句中,不用于疑问句中2.may not 可能不 can not不可能He may not come He can"t come3.may as well最好 may well理应,有足够的理由You may(might)as well stay where you are.-Shall we walk?-We may as well.4.表祝愿 May you be happy!5.may (might) + have +done 表示对过去发生行为的推测,也许或许已经做It may have been true.He might not have settled the question. He may not have finished the work.I think he may have gone to bed.6.may表示目的Eg: You must go to bed early so that you can/may catch the train.7.表示让步Eg: However hard he may try, he cannot get the first place.三、must1. 表示义务意为“必须”(主观意志)Eg: We must do everything step by step.You mustn"t talk to her like that. -Must we hand in our exercise—books now? -No, you needn"t. / No, you don"t have to. 2.肯定推测(绝对不能用于否定推测!!!!否定推测用can"t/couldn"t)Eg: He must be ill. He looks so pale.She"s wearing a diamond necklace. She must have a lot of money. 3.偏要做,偏偏Eg: Why must rain on Friday?Must you speak so loudly?If you must smoke, please go out!4.must have done想必准时一定做了某事,否定是can"t/couldn"t have done5. didn"t need to have done 过去没有必要做,具体是否做不强调needn"t have done 本不必却做了四、shall1.在肯定句、否定句中表示命令、警告、威胁、许诺以及法律、规定、规章制度Eg: You shall leave the room at once, and he shall, too.It has been announced that candidates shall remain in their seat until all the papers have been collected.-when can I get my computer back?-Well, you shall have it on Saturday.He shall be punished if he breaks the rule.You should return the book to the library tomorrow.You shall do as I say. 按我说的做。(命令) You shall have my answer tomorrow. 你明天可以得到我的答复。(允诺) He shall be sorry for it one day, I tell you. 有一天他会后悔的,我告诉你。(警告) Nothing shall stop us from carrying out the plan. 什么也不能阻止我们执行这项计划。(决心) 2.表示请求、允许 Shall he/ she/ they/ I/ we……?Eg: Shall I open the window?Shall the driver wait outside?五、should1.用于第一人称疑问句中询问对方的意愿,但语气较委婉温和What should we do now? 2.表示应该、必须,常与must 换用。(不常见)We should (must) master a foreign language at least.3.“should+be+表语”的结构,表示推测或惊奇。They should be back by now. I am sorry that she should be so careless. 4.“should+have+过去分词”的结构,表示过去该做而实际上尚未做的动作或行为;其否定则表示发生了不应该发生的行为。其同义结构“ought to have +过去分词”,表示过去“早应该”、“本当”之意,语气较强。I should have thought of that. 这一点我是应当想到的。(但没想到)They should not have left so soon.他们不应当走得这么早。(但已走了)5. 在“It is natural (strange, natural, necessary, surprised, impossible, important ) that……”句型中,主语从句中的谓语动词要用“should +do”表示理所当然”、“奇怪”、“必要”、“惊异”等的意思。在lest(以免)、for fear (that) (以防)、in case(以备万一)等之后也要用should do;在advise, suggest, order, demand, request 等的从句中同样should doIt is necessary that he(should) be sent there at once.It is strange that he should say so.Let us go at once lest we should be late for the train.6. Why/How should 结构表示说话人对某事不能理解,感到意外惊异等意思,意为“竟会”Eg: Why should you be so late today?How should I know? 我怎么会知道?(意为:我不知道)六、will/would1.表示意志,决心或愿望。Surely we will support all the people in the world in their struggle for peace.我们一定要支持全世界人民争取和平的斗争。He would not let me try it .  他不肯让我去试。I will do anything for you. 我愿为你做任何事。 None is so blind as those who won"t see. 不愿看的人眼最瞎。 If you will read the book, I"ll lend it to you. 如果你愿意读这本书,我会把它借给你2.will表示经常性、习惯性、倾向性,would表示过去的习惯行为。He would come to see me when he was in Beijing.他在北京时,常来看望我。Every time she was in trouble, she would go to him for help. Fish will die out of water. 鱼离开水就不能活。 3.用于第二人称作主语的疑问句中,表示对对方的请求,would的语气比will委碗Would/will you kindly tell me the way to the station? 请问到火车站怎么走?Would you like another glass of beer? 再来杯啤酒好吗? Would you mind cleaning the window? 请把窗户擦一下好吗?Will you close the window? It"s a bit cold. 请你把窗户关上好吗?有点冷。 Won"t you drink some more coffee? 再来一点咖啡好吗? 4.表可能性This will be the book you are looking for.这可能就是你要找的书。She would be about 60 when she died.他死时大概60岁。5.won"t拟人化Eg: The door won"t open. The car won"t start.七、need情态动词need 实意动词need现在时 You need (not) doHe need (not) do You (don"t) need to do He needs (doesn"t need) to do 过去时 You needed (didn"t need) to do He needed (didn"t need) to do 将来时 You need (not) do He need (not) do You will (not) need to do He will (not) need to do 八、dare句型 时态 情态动词dare 实义动词 dare肯定句 现在时dare to dare/dares to do 过去时 dare to dared to do 否定句 现在时daren"t/dare not dodo/does not dare (to) do 过去时 dared not dodid not dare (to) do 疑问句 现在时Dare he do?Do you/Does he dear (to) do? 过去时 Dared he do? Did he dare (to) do九、宁愿做某事would rather dowould rather do than dowould do rather than dowould rather sb. didprefer to doprefer to do rather than doprefer doing to doingⅡ.情态动词表推测一、情态动词表推测的三种句式 1.在肯定句中一般用must (一定),may(可能),might / could(也许,或许)。 (1)He must/may/might know the answer to this question? 他一定/可能/也许知道这个问题的答案。 (2)It is cold in the room. They must have turned off the heating. 屋里很冷,他们肯定把暖气关了。 2.否定句中用can"t / couldn"t(不可能), may not/might not(可能不)。 (1)It can"t/couldn"t be the headmaster. He has gone to America. 这不可能是校长,他去美国了。 (2)He may not/might not know the scientist. 他也许不认识那位科学家。 3.疑问句中用can/could (能……?)。 (1)Could he have finished the task? 他可能把任务完成了吗? (2)Can he be at home now? 他现在能在家吗? 注:以上三种句式中情态动词的语气按程度都是依次递减的。Might, could并非may, can的过去式,而表示语气较为委婉或可能性较小。 二、情态动词表推测的三种时态 1.对将来情况的推测,用“情态动词 + 动词原形”。 (1)She must / may / might / could arrive before 5. 5:00前她一定/可能/也许到。 (2)She must/may/might/could walk miles and miles among the hills without meeting anyone. 她一定/可能/也许会在山里一连走好几英里而遇不到一个人。 2.对现在或一般情况的推测,用“情态动词 + be”,“情态动词 +be doing”或“情态动词 + 动词原形”。 (1)He must / may / might / could be listening to the radio now. 他一定/可能/也许正在听收音机。 (2)He can"t ( couldn"t ) / may ( might ) not be at home at this time. 这个时候他不可能/可能不在家。 (3)Mr. Bush is on time for everything .How can ( could ) he be late for the opening ceremony ? 布什先生一向准时,这次开幕式他怎么可能迟到呢? 3.对过去情况的推测,用“情态动词 + have +过去分词”。 (1)It must / may / might / could have rained last night .The ground is wet.   地湿了,昨晚肯定/可能/也许下雨了。 (2)The door was locked. He can ( could ) not / may ( might ) not have been at home .   门锁着,他不可能/可能不在家。 (3)Can / Could he have gotten the book?   难道他找到书了吗? 注:情态动词 should /ought to表推测时,意为“想必会,理应……”但与“have +过去分词”连用时,则又可构成虚拟语气意为“本应该做某事却没做”。例如: (4)It"s seven o"clock. Jack should/ought to be here at any moment. 现在七点钟了,杰克理应随时到达。(推测) (5)She should / ought to have attended your birthday party, but she had to look after her mother in hospital. (虚拟) 她本该出席你的生日晚会的,可是她得在医院照顾她妈妈。 (6)Tom should not /ought not to have told me your secret, but he meant no harm. (虚拟) 汤姆本不该告诉我你的秘密,可是他并无恶意。Ⅲ.must反意疑问句—应该 mustn"t—必须 needn"t—推测 还原成不含推测的句子一致Eg: You must be tired, aren"t you?You must have heard of it, haven"t you?He can"t have gone out yesterday, didn"t he?He can"t have gone out yet, has he?

英语中的复词、名词、形容词、动词情态动词各是什么意思(很重要不能乱说)

副词是修饰动词的,表动作做的怎样。也可以修饰副词。名词做主语,宾语或者表语。做主语表动作的施行者,做宾语表动作的受动者。做表语表是什么或怎样。形容词做表语或定语。做表语表怎样,做定语修饰名词如:acutelittlegirl.一个可爱的小女孩。动词的情态动词用法比较特殊,后加形容词表动作的效果。如:itsoundsgood.itlooksnice.

would是情态动词还是助动词

would的原形是will~~它的词性有助词,及物动词,不及物动词和名词.下面是详细解释: 助词 v.aux. 1. (表示单纯的将来)将 He will be home at six. 他六点回家. 2. (表示意志、意愿)愿,要 You will come, won"t you? 你会来的,是不是? [1] 3. (表示经常性、习惯性)经常,惯于,总是 These things will happen. 这种事总是要发生的. 4. (表示能力、功能)能 This auditorium will seat one thousand people. 这个礼堂能容纳一千人. 5. (表示猜测)可能,大概 This will be the house you"re looking for. 这大概就是你找的那所房子了. 6. (表示责任、义务)必须,一定 No one will leave the examination room before ten o"clock. 十点以前谁也不能离开考场. 及物动词 vt. 1. 用意志力使,主观促成[O2][+(that)] I tried with all my might to will him to say no. 我竭尽全力想使他说不. 2. 遗赠[O1][(+to)] He willed his house to his nephew. 他立下遗嘱,把房子留给侄子. 3. 意欲,决心要 不及物动词 vi. 1. 下决心 2. 愿意 名词 n. 1. 意志,毅力;自制力[C][U] Jim has a strong will. 吉姆是个意志坚强的人. 2. 心愿;目的;意愿[U][+to-v] He had a strong will to beat his opponent. 他有击败对手的强烈欲望. 3. 决心;意图[S] She had no will of her own. 她这人没有主见. 4. (对别人所抱的)情感[U] They bear you no ill will. 他们对你并无恶意. 5. 遗嘱[C] In her will she left all her money to her children. 她在遗嘱中将其所有的钱留给子女. Will 名词 n. 威尔 (男子名)

seemto是情态动词吗

是。情态动本身有一定的词义,表示语气的单词。但是不能独立作谓语,只能和动词原形一起构成谓语。而seem这个单词是似乎的意思,久久无法独立作谓语,只能和动词原形tobe构成谓语使用,所以是情态动词,例如Heseemstobeboring就是他似乎很无趣。

情态动词后能用进行时吗 不是加原型的吗那么You must be joking 是什么呢

不能。。但是有例外,比如:固定搭配要加ing。。。有些情况下can,may must等不表示情态意义。。。。要记住。学英语不靠理解,靠背的。。。毕竟咱不是外国人。。我听老师说英语。。。就是外国2b都会的语言。。。。。。。。如果有人否定咱的观点。。。别骂人啊。。我也是这样走过来的。。。。人类之所以叫人类是因为人活着比较累。。。

情态动词后能用进行时吗 不是加原型的吗那么You must be joking 是什么呢

情态动词後当然能用进行时,但其中的助动词(is/am/are/was/were)必须变为原式be。因此那句里的bejoking表示的是进行式。还有一点要注意就是,当我们单用must时,它的意思是"必须",当在後面加上be时,它的意思就变成"一定是"了。因此Youmustbejoking的意思是"你一定是在开玩笑",所以在这里,be不光是表示动词joke的进行时,还表示"一定是"的意思。

have to是不是情态动词

have to 是一个比较特殊的情态习语,它也有情态动词的功能,但却与其他的情态动词不同,不如must。因为它有人称、数和时态的变化,其否定式和疑问式的构成方式也与情态动词不一样。不过和情态动词的用法一样,后面跟动词原形。

情态动词have to的用法总结

情态动词have to的用法总结有: have to有多种时态的变化,而can, may等只有过去式等形式。 have to不能直接用来否定或提问,需要助动词do / did / does等帮助。而其他的情态动词一般都可以直接进行否定和提问。 have to可以被may 等情态动词修饰,其他动词之间不能互相修饰。 扩展资料   Now she won"t have to go out to work any more.   现在她不必再出去工作了。   I"d love to come, only I have to work.   我很想去,但是我要上班。   You"re going to have to give a little.   你可能非得稍为让步不可。   Where do I have to change?   我该在哪儿换车?   You"re going to have to learn to give and take.   你们必须学会互相迁就。

请告诉我have to是不是情态动词

have to 属于情态动词但比较特殊,它有人称的变化主语是第三人称单数时用has to

have to是实义动词还是情态动词

bTrue mastery of any skill takes a lifetime.,

情态动词can,could都表示能力,用法和区别是什么?

1.表示能力(could)是过去式 2.表示猜测“可能”,一般用于疑问句和否定句(could是过去式) 3.表示允许或请求允许,常用于第一人称或第二人称. 4表示请求允许时,与can相比,could语气更委婉,没有时态,意义上的区别. 5表示允许某人做某事时,用can而不用could. 表示惊异,怀疑,或不信任的态度,主要用于疑问句或否定句

情态动词表示猜测的用法 - 四级语法

??在英语的情态动词中,只有can(及其否定形式 can"t),could(及其形式couldn"t),may,might,must可用来表示猜测。下面是这些表示猜测的情态动词的用法及举例: ??(一)can用来表示"可能"的猜测 ??1.can可用来表示"理论上的可能性",用来表示事件或情况在理论上可能发生,并不牵涉到是否真的会发生。在这种用法中can只能与动词原形连用。 ??2.can可用来表示现实的可能性,但只能用在疑问句之中,可与动词原形或不定式的完成式连用。 ??2.1.Who can that be at the door?(门外会是谁?) ??2.2.Can it be Susan?(她会上哪儿去了呢?) ??(二)can"t和couldn"t表示"不可能"的猜测,在这种用法中can"t和couldn"t用法相同,只是couldn"t的语气更弱。下面以can"t为例: ??1.对现在存在的状态的"不可能"的猜测: ??1.1.It can"t be true.(这不可能是真的。) ??1.2.He can"t be Mike"s father.(他不可能是迈克的爸爸。) ??1.3.She can"t be more than thirty.(她不可能超过三十岁。) ??2.对正在发生的动作或行为的"不可能"的猜测:(can"t + be + 动词的现在分词) ??2.1.He can"t be watching TV at home.I met him at school a moment ago.(他不可能在家看电视,我刚在学校见过他。) ??2.2.He can"t be sleeping in his bedroom.I saw him go out.(他不可能在卧室睡觉,我看见 他出去了。) ??3.对过去的动作或行为的"不可能"的猜测:(can"t + have + 动词过去分词) ??3.1.She can"t have gone to school.It is Saturday.(她不可能上学去了,今天是星期六。) ??3.2.They can"t have gone out because the light is on.(他们不可能已经出去了,因为灯还开着。) ??(三)may和might常用来谈论可能性:某事可能将发生,某事可能正在发生和某事已经发生。might所表示的可能性要比may所表示的可能性弱一些,但用法相同,下面以may的用法举例: ??1.may用来表示某事可能将发生:(may + 动词原形) ??1.1.He may go climbing in the Alps next summer.(明年夏天他可能去阿尔卑斯山。) ??1.2.They may come to visit us this summer.(他们可能今年夏天来看望我们。) ??2.may用来表示对现在存在的状态可能性的猜测:(may + be + 其他成分) ??2.1.He may be engaged.(他可能很忙。) ??2.2.It may be a new species.(这可能是个新的品种。) ??2.3.I"m only afraid I may be bored.(我只害怕我可能会觉得无聊。) ??3.may用来表示某事可能正在发生:(may + be + 动词的现在分词) ??3.1.They may be sleeping because we can hear no sound in their room.(他们可能正在房间里睡觉,国为我们听到任何声音。) ??3.2.He may be doing his homework.Don"t disturb him.(他可能正在做作业,别打扰他。) ??4.may用来表示某事已经发生:(may + have + 动词的过去分词) ??4.1.You may have read some account of the matter.(关于这件事你可能已经听过一些描述 了。) ??4.2.Mathews may have written that letter.(马修斯可能已写了那封信。) ??注:may和might表示"可能"时一般不用于疑问句。表达疑问时要用别的说法。例如: ??Is it likely to rain,do you think?(错误的句子是:May it rain?) ??表示否定时要用can"t或couldn"t("不可能")。 ??(四)must用来表示"肯定"的猜测: ??1.must用来表示对现在的动作或状态的"肯定"的猜测: ??1.1.Judging by the smell,the food must be good.(从气味来判断,这食物肯定很好吃。) ??1.2.It"s a quarter past three.He must be in by now.(现在已是三点一刻了,他肯定已到家 了。) ??1.3.I"m always running into him,he must live neat here.(我总是遇见他,他肯定就住在附 近。) ??1.4.Mary must have some problem.She keeps crying.(玛丽肯定有什么问题,她一直在哭。) ??2.对正在进行的动作的"肯定"的猜测: ??2.1.You must be joking.(你肯定在开玩笑。) ??2.2.If she is borrowing money,she must be getting into debt.(如果她在借钱,她肯定陷入 债务当中了。) ??2.3.His progress indicates that he must be working hard.(他的进步表明他正在努力。) ??3.对过去动作的"肯定"的猜测: ??3.1.He must have arrived by air.(他肯定已乘机到达了。) ??3.2.He must have received my letter.(他肯定已收到我的信了。) ??3.3.His watch must have stopped.I"ll go and call him.(他的表肯定已停了,我去叫他。)

hardly ever可以和情态动词连用吗

hardly ever 几乎不;几乎从来不可以She can hardly ever catch what I am saying. 她简直不懂我所说的话。

什么叫情态动词 什么叫行为动词

情态动词是一种本身有一定的词义,但要与动词原形及其被动语态一起使用,给谓语动词增添情态色彩,表示说话人对有关行为或事物的态度和看法,认为其可能、应该或必要等。情态动词后面加动词原形。

英语中det.是什么词性?int.呢,情态动词aux. verb.

det. 是 determiner 的缩写,指词类中的“限定词”。限定词是与名词密切相关的词类,包括冠词(a(n), the)、形容词性指示代词(this, that, these, those)、形容词性物主代词(my, your, our, etc.)、形容词性不定代词(both, every, much, some, etc.)、数词(one, two, etc.; first, second, etc.; one-third, three-fifths, etc.)和特指形容词(next, only, etc.)。int是感叹词。int(感)感叹词,是interjection的缩写.interjection英 [ˌɪntəˈdʒekʃn] 美 [ˌɪntərˈdʒekʃn]n.叹词,感叹词叹词(interjection)可以表示惊讶、赞美、埋怨、叹息等感情,起呼唤、应答的作用。auxv是助动词,Auxiliary Verb的缩写。协助主要动词构成谓语的词叫助动词(Auxiliary Verb),也叫辅助动词。被协助的动词称作主要动词(Main Verb)。助动词用来构成时态和语态。情态动词(Modal verbs)本身有一定的词义,表示语气的单词。但是不能独立作谓语,只能和动词原形一起构成谓语。情态动词用在行为动词前,表示说话人对这一动作或状态的看法或主观设想。 情态动词虽然数量不多,但用途广泛,常见的有: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would)

情态动词有很多句子里后面都加be是什么意思?

正确答案是:因为be是一个动词.每个句子的完整结构是"主动宾"--就是主语(subject),加动词(verb),再加宾语(obeject).be就是句子里面的动词.至于imaygoabroad,这句里面的动词就是"go",所以就不需要再加"be"作动词了.但是"Thebreadmaybefresh","hemaybereading","hecan"tbeshaving"里面,如果没有"be",句子就没有动词了.(注意"reading","shaving"有加"ing"的,不能当动词,而是动名词)(而他们要加ing的原因就是两个动词不能连续用,所以加ing,让他有名词性质)

常用情态动词的意思与用法

分类 情态动词有四类: ①只做情态动词:must,can(could),may(might)…… ②可做情态动词又可做实义动词:need,dare ③具有情态动词特征:have(had,has) to,used to ④情态动词表猜测 编辑本段位置 情态动词有一定的词义,但并不完整,必须与动词原形一起构成谓语. I can see you. Come here. 我能看见你,过来吧. He must have been away. 他一定走了. What can I do for you? 我能帮你吗? How dare you treat us like that! 你怎能那样对待我们! I wish I could fly. 好希望我可以飞翔啊. 特点 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not". 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来.情态动词属非及物动词,故没有被动语态. He could be here soon. 他很快就来. We can"t carry the heavy box. 我们搬不动那箱子. I"m sorry I can"t help you. 对不起,我帮不上你. 基本助动词与情态助动词最主要的区别之一是:基本助动词本身没有词义,而情态助动词则有自己的词义,能表示说话人对有关动作或状态的看法,或表示主观设想: What have you been doing since? (构成完成进行体,本身无词义) I am afraid I must be going. (一定要) You may have read some account of the matter. (或许已经) 除此之外,情态助动词还有如下词法和句法特征: 1) 除ought和used以外,其他情态动词后面只能接不带to的不定式.如果我们把ought to和used to看做是固定词组的话,那么,所有情态动词无一例外地只能接不带to的不定式: We used to grow beautiful roses. I asked if he would come and repair my television set. 2) 情态助动词在限定动词词组总是位居第一: They need not have been punished so severely. 3) 情态助动词用于第三人称单数现在时的时候,没有词形变化,即其词尾无-s形式: She dare not say what she thinks. 4) 情态动词没有非限定形式,即没有不定式和分词形式,也没有相应的动名词: Still, she needn"t have run away. 5) 情态助动词的“时”的形式并不是时间区别的主要标志.在不少场合,情态助动词的现在时和过去时形式都可以表示现在、过去或将来时间: Would you mind very much if I ask you to do something? She told him he ought not to have done it. 6) 情态助动词之间是相互排斥的,即在一个限定动词词组中只能出现一个情态助动词,但有时却可以与have和be基本助动词连用: You should have washed the wound. Well, you shouldn"t be reading a novel. 编辑本段用法 首先它是动词,而且不同于行为动词,行为动词表示的是可以通过行为来表达的动作(如写,读,跑),而情态动词只是表达的一种想法(如能,也许,敢). 用法是:情态动词+行为动词原形 例句:I can read this sentence in English. 我能用英语读这句话. 情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语. We can be there on time tomorrow.我们明天能按时去那儿. May I have your name? 我能知道你的名字吗? Shall we begin now?我们现在就开始吗? You must obey the school rules.你必须遵守校规. 情态动词数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would),have (to) ,had better. 情态动词还有一个很重要的用法,即情态动词表推测—— 情态动词表推测的用法小结 (一)情态动词表推测的三种句式 1.在肯定句中一般用must (一定),can, could(可能),might /may(也许,或许). (1)He must/cab/may,might know the answer to this question? 他一定/可能/也许知道这个问题的答案. (2)It is cold in the room. They must have turned off the heating. 屋里很冷,他们肯定把暖气关了. 2.否定句中用can"t / couldn"t(不可能), may not/might not(可能不). (1)It can"t/couldn"t be the headmaster. He has gone to America. 这不可能是校长,他去美国了. (2)He may not/might not know the scientist. 他也许不认识那位科学家. 3.疑问句中用can/could (能……?). (1)Could he have finished the task? 他可能把任务完成了吗? (2)Can he be at home now? 他现在能在家吗? 注:以上三种句式中情态动词的语气按程度都是依次递减的.Might, could并非may, can的过去式,而表示语气较为委婉或可能性较小. (二)情态动词表推测的三种时态 1.对将来情况的推测,用“情态动词 + 动词原形”. (1)She must / may / might / could arrive before 5. 5:00前她一定/可能/也许到. (2)She must/may/might/could walk miles and miles among the hills without meeting anyone. 她一定/可能/也许会在山里一连走好几英里而遇不到一个人. 2.对现在或一般情况的推测,用“情态动词 + be”,“情态动词 +be doing”或“情态动词 + 动词原形”. (1)He must / may / might / could be listening to the radio now. 他一定/可能/也许正在听收音机. (2)He can"t ( couldn"t ) / may ( might ) not be at home at this time. 这个时候他不可能/可能不在家. (3)Mr. Bush is on time for everything .How can ( could ) he be late for the opening ceremony ? 布什先生一向准时,这次开幕式他怎么可能迟到呢? 3.对过去情况的推测,用“情态动词 + have +过去分词”. (1)It must / may / might / could have rained last night .The ground is wet. 地湿了,昨晚肯定/可能/也许下雨了. (2)The door was locked. He can ( could ) not / may ( might ) not have been at home . 门锁着,他不可能/可能不在家. (3)Can / Could he have gotten the book? 难道他找到书了吗? 注:情态动词 should /ought to表推测时,意为“想必会,理应……”但与“have +过去分词”连用时,则又可构成虚拟语气意为“本应该做某事却没做”.例如: (4)It"s seven o"clock. Jack should/ought to be here at any moment. 现在七点钟了,杰克理应随时到达.(推测) (5)She should / ought to have attended your birthday party, but she had to look after her mother in hospital. (虚拟) 她本该出席你的生日晚会的,可是她得在医院照顾她妈妈. (6)Tom should not /ought not to have told me your secret, but he meant no harm. (虚拟) 汤姆本不该告诉我你的秘密,可是他并无恶意.

aux.表示什么词性?是情态动词吗?

aux. auxiliary(助)助动词

三道德语情态动词选择题

1.HabtihrschonTickets?-Nein,wir____nochwelchebesorgen.a.muessenb.brauchenc.wollend.duerfen答案是C,A为什么不行?nochwelche在这里又怎么翻译呢?noch还,welche=welcheTickets;我们还想要买几张票子。早说选muessen嘛…………因为你们还没有票,所以你们必须买票,是必须哦!!不买票怎么能入场呢,所以用muessen,你为什么想用wollen呢,wollen是想要的意思,不通的呀……解释语法题其实就很扯……ehrlichgesagt2.____dudasWortnichtkennen,kannstduesimWoerterbuchnachschlagen.a.Solltestb.Koenntestc.Muesstestd.Wolltest答案是A,可是我始终不明白,sollen在这里是“应该”的意思么,那这句话怎么翻译呢?其实你把语序转过来就明白了,dusolltestdasWortnichtkennen,dukannstesimWoerterbuchnachschlagen.solltest在这里是第二虚拟式哦!!其实用一般现在式也够了,你不需要认识这个词,你可以查字典,这里的sollen就有点nichtbrauchenzu的意思了,dubrauchstdasWortnichtzukennen,一样的意思,嗯。。klar?3.DieMutter____ihrKindnichtalleinueberdieStrassegehen.a.darfb.kannc.erlaubtd.laesst答案是D,A为什么不行,duerfen不是可以表示许可、允许和禁止么?好问题!duerfen其实是被允许的意思。DudarfstnichtAlkoholtrinken.你不被允许喝酒;DudarfstnichtAutofahren.你不被允许开车;Darfichfernsehen?我能看电视么?如果你这里填darf,意思就完全不对啦^^lassen的话,可以直接跟infinitiv,DieMutterlaesstihreKindnichtalleinueberdieStrassegehen.她不让她孩子一个人过马路,很通嘛~~erlauben在这里意思也是通的。。可是它不能直接跟Infinitiv...还有啥问题不?

三道德语情态动词选择题

1.Habt ihr schon Tickets? - Nein,wir ____ noch welche besorgen. a.muessen b.brauchen c.wollen d.duerfen 之所以不能用brauchen, 是因为后面是besorgen.... 如果后面是welche结尾,那么就是 nein, wir brauchen noch welche,之所以不用C是因为。。。habt ihr schon ticket, 这个问题是问, 你们买了票了吗? 意思就是说,他们肯定需要这个票。。如果用, wir wollen noch welche besorgen, 意思就是我们还想要去买的, 意思就是说有没有票都无所谓。。。noch welche在这里又怎么翻译呢? noche welche 这里就是指, 一些。。。2.____ du das Wort nicht kennen,kannst du es im Woerterbuch nachschlagen. a.Solltest b.Koenntest c.Muesstest d.Wolltest 答案是A,可是我始终不明白,sollen在这里是“应该”的意思么,那这句话怎么翻译呢? 这里的sollen 是如果,假如的意思。。如果你不认识这个词,你可以查字典。3.Die Mutter ____ ihr Kind nicht allein ueber die Strasse gehen. a.darf b.kann c.erlaubt d.laesst 答案是D,A为什么不行,duerfen不是可以表示许可、允许和禁止么? dürfen的意思 是可以,允许的意思, 并没有禁止的意思。。。所以这里要用D, 因为是要说明, 母亲们不让她的小孩独自上街。 - 代表是妈妈不愿意如果用duerfen的话, 翻译起来的意思就是。。母亲们不可以(不允许)让她的孩子独自上街。 (意思就是妈妈想让也不可以, 国家不让了)

情态动词:must, may, might的区别

might是may的过去式.might表示允许或请求,语气比may委婉;表示没有把握的推测;may放在句首,表示祝愿。might表示推测时,不表示时态。只是可能性比may小。总的来说应该就是这样啦.

情态动词might的用法归纳

1.都表示“可以”,语气客气委婉;例句: You might as well tell the truth. 你不妨讲真话。 2.表示“可能”、“或许”;例句: You might have caught a cold. 你也许感冒了。 3.用在表示目的等一些状语从句中。 扩展资料   情态动词may与might用法要点归纳:   1. 表示允许   (1) 表示请求允许(即请求别人允许自己做某事),两者都可用,只是 might 表示的语气较委婉(但并不表示过去)。如:   May I come round in the morning? 我早上来行吗?   (2) 表示给予允许(即自己允许别人做某事),只用能 may而不能用might。如:   You may stop now. 你现在可以停下来了。   You may not tell him this. 你不可以告诉他这件事。   体会以下对话的问句与答句:   A:May [Might] I stay? 我可以留下吗?(表请求,可用两者)   B:Yes, you may. 可以。(表允许,不能用 might)   注意,might 表示允许通常不表示过去,但是在间接引语(即宾语从句)中可以用作 may 的过去式来转述已给予的允许。如:   She said that he might take her dictionary. 她说他可以拿她的词典去用。   2. 表示推测   两者都可用,只是 might 比 may 语气更不确定,表示的`可能性更小(注意此时的might并不表过去)。在句型使用方面:may通常用于肯定句或否定陈述句,一般不用于疑问句(疑问句中用 can, 参见 can),而might 则可用于肯定句、否定句或疑问句。在用法方面注意以下几点:   (1) 后接动词原形,表示对现在或将来的推测。如:   He may [might] be in his office now. 他现在说不定在办公室里。   Might he know the answer? 他可能知道答案吗?   (2) 后接动词进行式,表示动作正在进行或将要发生。如:   They may [might] be going abroad next month. 他们可能在下个月出国。   Might he be waiting for us at the station? 他会不会在车站等我们?   (3) 后接动词完成式,表示对过去可能发生的事进行推测。如:   He may [might] have gone to have his hair cut. 他可能理发去了。   She may [might] have read it in the papers. 她可能在报上已读到过此事。   注意,若不是单纯地对过去可能发生的事进行推测,而是表示以下用法,则只能用“might+完成式”,而不能用“may+完成式”:   ①表示过去本来可能发生而实际上没有发生的情况,通常译为“本来可以”“本来可能”等。如:   She felt horror at the thought of what might have happened. 一想到之前可能会发生的事情她就感到害怕。   You were stupid to try climbing up there. You might have killed yourself. 你从那儿往上爬,太蠢了,你可能会摔死的。   ②表示过去本来有责任或义务应该做某事的,但实际上却没有做成,含有批评和责备的意味,通常译为“本来应该”“本来可以”等。如:   You might have told us half an hour ago. 你半个钟头前告诉我就好了。   ③用于虚拟条件句中谈论过去的情况时:   If you hadn"t reminded me, I might have forgotten. 你如不提醒我,我可能就忘记了。   If we had taken the other road we might have arrived earlier. 如果我们当时走了另一条路,就可能到得早一些。   3. 用于 may [might] (just) as well   意为“不妨”“还是……为好”等,用 might 比用 may 语气更委婉。如:   We may [might] (just) walk there. 我们不妨步行去。   might as well有时还可用于指过去的情况或用于比较两个令人不愉快的情况。如:   Now that they were all there she might as well speak her mind. 由于大家都在,她不妨把自己的想法都说出来。   This holiday isn"t much fun; we might as well be back home. 这个假日过得真没意思,我们还不如呆在家里。

情态动词填写,帮帮忙啊。

1. can 2. climb 3. dance 4. wash 5.can

would作情态动词时的用法,必须要详细

1.表示过去曾有过的意志、决心I would do my best.2.表示请求、愿望、看法等,使语气委婉would you like tea?3.过去习惯性动作He would go fishing on suday.
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