hat

it 可以指代that 和this比如is this a xxx? yes, it is./yes, this is. (但其实用it is的更多。）

首先从itisthat说起（暂不提certain）：去掉itisthat把该句子恢复到正常语序就是allessentialprocessesofplantgrowthanddevelopmentoccurinwater.可以十分清楚地看到该句的主谓状况：主语：allessentialprocessesofplantgrowthanddevelopment一切植物的生长和成长谓语部分：occurinwater.产生在有水的情况下（直译：在水里发生）不难发现itisthat改变了句子结构，变成了强调句，本句强调主语：正是一切植物的生长和成长都产生在有水的情况下。也可以强调inwater：Itisthatinwaterallessentialprocessesofplantgrowthanddevelopmentoccur。正是在有水的情况下一切植物的生长和成长都会产生但是由于本句还有certain一词，那么就与强调句式无关了，它是Itiscertainthat...,certain式表语提前，表示强调该词，即：that后面的句子是主语从句，it是形式主语，也就是：that从句所表述的意思是肯定无疑的，译成汉语就是：毫无疑问一切植物的生长和成长都产生在有水的情况下。

that,this,it都是代词,都是代表一个东西. 如果你问为什么,只能回答你这个是外国人的习惯.当问题成百上千次被问的时候,最简洁的回答成为了最主流的答案.就是这样.

Justin Bieber - Love MeOh oh its jbMy friends say I"m a fool to thinkThat you"re the one for meI guess I"m just a sucker for love"Cuz honestly the truth is thatYou know I"m never leavin""Cuz you"re my angel sent from aboveBaby you can do no wrongMy money is yoursGive you little more because I love yaLove yaWith me, girl, is where you belongJust stay right hereI promise my dear I"ll put nothin above yaAbove yaLove me, Love me是这一首吗？Say that you love meFool me, Fool meOh how you do meKiss me, Kiss meSay that you miss meTell me what I wanna hearTell me you love meLove me, Love meSay that you love meFool me, Fool meOh how you do meKiss me, Kiss meSay that you miss meTell me what I wanna hearTell me u love mePeople try to tell mebut I still refuse to listen"Cuz they don"t get to spend time with youA minute with you is worth more thanA thousand days without your loveOh your loveOhBaby you can do no wrongMy money is yoursGive you little more because I love yaLove yaWith me, girl, is where you belongJust stay right hereI promise my dear I"ll put nothin above yaAbove yaLove me, Love meSay that you love meFool me, Fool meOh how you do meKiss me, kiss meSay that u miss meTell me what i wanna hearTell me you love meLove me, Love meSay that you love meFool me, Fool meOh how you do meKiss me, kiss meSay that u miss meTell me what i wanna hearTell me you love meMy heart is blind but I don"t care"Cuz when I"m with youeverything has disappearedAnd every time I hold you nearI never wanna let you goOhLove me, Love meSay that you love meFool me, Fool meOh how you do meKiss me, kiss meSay that u miss meTell me what i wanna hearTell me you love meLove me, Love meSay that you love meFool me, Fool meOh how you do meKiss me, kiss meSay that u miss meTell me what i wanna hearTell me you love me

这两个词的区别我懂，this强调的是与说话人有关的现象，that强调的是与说话人无关的现象，it强调的是现象本身。给大家简单总结了两个词的含义、发音以及用法，先大概的了解一下~~接下来让我们看下it和this，that的其他区别：1. 距离上的区别：this指的是近处的事物或概念，that指的是远处的事物或概念，而it则指代事物或概念本身。例句：- This book is really interesting.这本书很有趣。- That monument is one of the most famous landmarks in the city.那个纪念碑是城市中最著名的地标之一。- It is raining outside.外面下雨了。2. 强调方式不同：this强调的是与说话人有关的现象，that强调的是与说话人无关的现象，it强调的是现象本身。例句：- This is what I was talking about earlier.这就是我先前说的那个事情。- That"s a terrible thing that happened to them.那是一件对他们来说很糟糕的事情。- It was a very hot day yesterday.昨天是非常炎热的一天。3. 句子使用上的区别：this常常出现在介绍、连接上；that常常出现在举例、比较上；而it常常出现在描述、指称上。例句：- This is my friend, Jack.这是我的朋友杰克。- That"s a good point.那是一个很好的观点。- It"s always been my dream to travel the world.环游世界一直是我的梦想。4. 意思上的区别：this表示正在发生或将要发生的事情，that指的是已经发生或已知的事情，it可以代表无意义的事物或概念。例句：- This is getting out of hand.这要变得失控了。- That was a great movie we saw last night.昨晚我们看的电影非常好。- It doesn"t matter.这没关系。5. 句型应用的区别：This常常用作主语或介绍所述事物，that常常用作主语、指示或说明事物，而it常常用作占位符。例句：- This is my house.这是我的房子。- That is a dog over there.那边有一只狗。- It is important to get enough rest.足够的休息很重要。

1;It,指代‘原物"I lost my pen but yesterday I find it.2;That。‘那个"可以 引导定语从句，宾语从句，表语从句，同位语从句和主语从句，后四3;个叫名词性从句。1)I like that man .2)I knew her mother that is a singer. This。指“这个”This is my friend. 4;its译为‘它的"是形容词性物主代词。My dog, its tail is yellow.

this，that和it区别用法如下： (1)this和that是指示代词，it是人称代词。 (2)距离说话人近的人或物用this，距离说话人远的人或物用that。如： This is a flower．这是一朵花。(近处) That is a tree．那是一颗树。(远处) (3)放在一起的两样东西，先说this，后说that。如： This is a pen．That is a pencil．这是一支钢笔。那是一支铅笔。 (4)向别人介绍某人时说This is．．．，不说That is．．．。如： This is Helen．Helen，this is Tom．这是海伦，海伦，这是汤姆。 (5)This is不能缩写，而That is可以缩写。如： This is a bike．That"s a car．这是一辆自行车。那是一辆轿车。 (6)打电话时，介绍自己用this，询问对方用that。如： —Hello！Is that Miss Green？ 喂，是格林小姐吗？ —Yes，this is．Who"s that？ 是的，我是，你是谁？ (7)在回答this或that作主语的疑问句时，要用it代替this或that。如： ①—Is this a notebook？这是笔记本吗？ —Yes，it is．是的，它是。 ②—What"s that？那是什么？ —It"s a kite．是只风筝。 (8)it可以指天气、时间、距离或人，也常用来代替前文中所提到的同一事物。如： ①It"s a fine day today．今天是个好天。 ②What"s the time？ It"s six．几点了？六点。 ③It"s not far from here．离这儿不远。 ④—Who is it？谁呀？

it,多指上文已经提到的人或物，也可以是一句话，并且有形式宾语，形式主语的含义，用法比较多。that也指上文提到过的物（名词），但多用来在比较句之中代指上文的物。

it是人称代词代替物，动物，门外的人，作形式主语和宾语等that是指示代词指远处的事物，电话中的对方，为避免重复代替前面的可数名词单数和不可数名词

在不明确的情况下，可以用it代指。

That is. 的意思是，那就是(你想要了解的)。that is 可以看成是省略句，省略了和上文相同的部分 ，补全是 that is what you want to know about.

意思是：就是那样吗，或者：就是那个吗？

what that is it ? 问法对吗 这个句子语法有问题。 句子中，It是主语，is是连系动词，what是代词作表语， that作表语则与what重复，that作主语则与it重复。 所以： 要么是：what is it ? 要么是：what is that ?

that"s

首先，that"s it 指：就是这样；没错；ok。而that"s that 并不常用，如果用则表示：那就是，诉说对象一般是离自己比较远的人。

强调句的基本组成:it is 强调部分 that,符合这个结构就是了,is it 强调部分that是反义疑问句

必须倒装,应该是 It is not until we caught the next offenders that could we leave.

该句式 有四种情况 1that从句是定语从句2that从句是主语从句3that从句是同位语从句4that是强调句型中的虚词。（既然说的是that从句，第四种情况可排除掉。）It is the best film that I have ever seen.（定语从句）It is a good idea that we go to the cinema.（主语从句）It is the very news that our team has won.（同位语从句）

例如:Itisperfectthatyoucancometomybirthdayparty!that引导的是主语从句,因为It是形式主语,真正的主语是that后面引导的从句.从句的成分是做主语,所以为主语从句撒.

这是一个主语从句.而It"s .that是强调句（1）主语从句.It is important that students today master English.It is reported that China will send up a series of spaceships in the 21st century.It is a rule that everyone should obey the State"s laws.It happened that they were out visiting their friends.可以看出,此类主语从句的句子成分无论是主语、谓语、宾语,还是各种状语都是完整的,并且不能称到“It is…”结构中去.这就是判别主语从句的基本点.（2）强调句.先举一个重点成分句：昨天我在书店看见了他.I saw him at the bookstore yesterday.现将此句变成分别突出主语、宾语、地点及时间状语的强调句：A、It was I that/who saw him at the bookstore yesterday.B、It was him that I saw at the bookstore yesterday.C、It was at bookstore that I saw him yesterday.D、It was yesterday that I saw him at the bookstore.

第一句，不是强调句，也没有省略that。what引导的是主语同位语从句，该句可写成：Whattheproblemitselfismustbeobvious.第二句，是强调句，Itis…thatshapesourlives.其中所强调的是个以关联词not…but…所连接起来的复合结构即notwhatwedoonceinawhilebutwhatwedoconsistently，本质上该结构还是两个以what引导的并列从句。由于这个并列从句太长，因此原句将其后半段移出来放到句子后面。还有不明白可以继续问。

一个丨也不能太晚了还没吃饭吗！

that[TAt]adj.那,那个pron.那,那个conj.引导从句例句:atthattime,inthosedays那时,当时Whataboutthatfivedollarsyouborrowedfrommelastmonth?你上月向我借的五元钱什么时候还?[有修饰色彩,现常用such,sucha]那样的,如此的thatlittlesonofhis他那个小宝贝儿子T-George!乔治那个家伙!it[it]pron.1.它[2.域]Italy,意大利例句:Itissnowing.正在下雪Usedasananticipatorysubjectorobject:代主语或宾语：作为先行主语或先行宾语：Isitcertainthattheywillwin?他们一定会赢吗?Usedasananticipatorysubjecttoemphasizeatermthatisnotitselfasubject:强调主语：作为先行主语来强调，但它本身并不是主语：ItwasonFridaythatallthesnowfell.是在星期五下雪的Usedtorefertoageneralconditionorstateofaffairs:情况状态：用于指事情通常的情况或状态：Shecouldn"tstandit.她无法容忍

应该用" that is "回答吧？！

意思上 this 是:这个 that 是:那个 it 是:它 用法上 this that it 都可以直接作主语 也都可以做代词 指代事物 例子：this /that/it is an apple. 但是，只有it可以做形式主语 例：it is better to say hello to him. it 是形式主语，真正的主语是to say hello to him. it作为形式主语的时候可以代替动词不定式/ing/一个句子。 “this”、“that”既可以作形容词，又可以作指示代词；而“it”只能作代词。one可用数词又可作代词. 指“物” 1.“this”指近物，“that”指远物，“it”没有远近之分。如： This is a computer. 这是一台电脑。（在近处） That is a bike. 那是一辆自行车。（在远处） 2.在回答“this”和“that”作主语的疑问句时，常用“it”代替“this”和“that”。如： －Is this/that a car? 这/那是一辆小汽车吗？ －Yes, it is./No, it isn′t. 是的，它是。/不，它不是。 －What′s this/that? 这/那是什么？ －It′s a ruler. 这/那是一把尺子。

that是主语从句

强调句啊，that后是定语从句，不是什么词~~~

这个问题简单啊.描述现在的事情（一般现在时）用is,描述过去的事情（一般过去时）用was,另外,在对现在的事情的虚拟时也可以用was

区别不大但that指同类不同物，如：The umbrella you bought is cheaper than that I bought. （替代词that在该句中特指“the umbrella I bought”, 以区别“the umbrella you bought”）而it指同类同物，如：I have lost my umbrella; I"m looking for it. （该句中it就是指前面的my umbrella）

1.It is + 被强调部分 + that ... 就是强调句 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that可以由who换用。如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It was about 600 years ago that the first clock with a face and an hour hand was made.It was they that (who ) cleaned the classroom yesterday. It was in the street that I met her father. 补充： 2. It is not until + 被强调部分 + that ... 该句型也是强调句型。主要用于强凋时间状语，译成汉语”直到．．．才．．．”，可以说是 not ... until ... 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star. = I didn"t realize she was a famous film star until she took off her dark glasses. 3. It is clear ( obvious, true, possible, certain....) that ..... 该句型中it 是形式主语，真正的主语是that 引导的主语从句，常译为”清楚（显然，真的，肯定．．．）” 是主语从句最常见的一种结构。 It is very clear that he"s round and tall like a tree. = That he"s round and tall like a tree is very clear. 4. It is important ( necessary, right, strange, natural...) that ... 该句型和上一个同属一个句型。由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。建议记住该句型中的形容词。 It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned....) that ... 该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为”据说（据报道，据悉．．．）”。 It is said that he has come to Beijing. It is reported that another earth satellite has been put into orbit. 6. It is suggested ( ordered ... ) that ... 该句型和上一个同属一个句型。主句中的过去分词是表示请求，建议，命令等词时，that 后的从句要用虚拟语气（should + 动词原形），should 可以省。常译为”据建议；有命令．．．） It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours. 7. It is a pity ( a shame ... ) that ... 该句型中，that后的从句一般用虚拟语气（should + 动词原形），should可省去．表示出乎意料，常译为”竟然”。没有这种意义时，则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. 这种事竟然发生在你们班上，真是遗憾！ It is a pity that he is ill. 他生病了，真遗憾！ 8. It is time ( about time ,high time ) that ... 该句型中that 后的从句应该用虚拟语气，值得注意的是① 常用过去时态表示虚拟．② 有时也用should + 动词原形，should 不能省。常译为”是（正是）．．．的时侯．．．”。 It is time that children should go to bed. = It is time that children went to bed. 9. It is the first ( second ... ) time that ... 该句型要和上一个句型区别开来。该句型中的 that 从句不用虚拟语气，而用完成时态。 至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中 that 可以省去；it有时用 this 替换．常译为”是第一（二）．．．次．．．”。 It is the first time I have been here. = This is the first time I have been here.

在句中作主语的名词性从句称为主语从句，主语从句所对应的谓语动词通常用第三人称单数的形式。为了整个句子的平衡，主语从句经常后置，并用it充当形式主语(此时，that引导的主语从句若不放在句首，可以省略引导词that)。　　it作形式主语代替主语从句主要是为了平衡句子结构，主语从句的连接词没有变化；it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that(被强调部分指人时也可用who/whom)，区分it作形式主语指代主语从句与it引导强调句型的有效技巧是：将“Itbe...that...”中的itbe和that去掉后，句子仍然成立的是强调句，句子不能成立的是that引导的主语从句。例如：Itwasmysuggestionthatmadehimconfidentofsuccess.正是我的建议使他对成功有了自信。去掉itbe和that后可以构成完整的强调句型的原型“Mysuggestionmadehimconfidentofsuccess.”，因此本句属于强调句。　　Itismysuggestionthatheneedsmorepractice.他需要更多的练习是我的建议，去掉itbe和that后本句讲不通，因此本句属于主语从句。希望对你有所帮助！参考：新浪教育

强调句，强调时间状语

该句式有四种情况1that从句是定语从句2that从句是主语从句3that从句是同位语从句4that是强调句型中的虚词。（既然说的是that从句，第四种情况可排除掉。）ItisthebestfilmthatIhaveeverseen.（定语从句）Itisagoodideathatwegotothecinema.（主语从句）Itistheverynewsthatourteamhaswon.（同位语从句）

it is...to...that...的句型，好像没见过，一般都是it is adj for sb to do sth或者it is..adj.for sb. that ...的句型，表示做某事对某人是如何的，不定式做主语

There are the students that make me happy.把单数变成复数。你的例句也错了，应该是makeS

1主语从句如itisclearthathehasfailed2强调句型如itisclearlythathespeaks.3it是指示代词that是同位语从句或定语从句如itisthenewsthatourteamhaswon.itisthenewsthathetoldme.本句也可以看作是强调句4it表示时间天气距离等如itissohotthatwewon"tgoout.迷惑强调句的题如itwasatsevenclock----hearrived答案是that这是强调句itwassevenclock----hearrived答案是when这是状语从句itisthreeyears-----hecamehere.答案是since这是状语从句itisforthreeyears----hehasbeenhere答案是that这是强调句

是it做形式主语的疑问句式 that后接的内容是真正主语.

itis+adj+that+从句=That从句isadj.比如itisnecessarythatwelearnenglish.=Thatwelearnenglishisnecessary.在这个从句中that从句做主语，典型的名词性从句做主语，that是个conj.

句中的 "it is...that" 是强调句型，用来强调后面的内容。在这个句子中，“it”代表着先前提到过的某个事情，而“that”引导一个从句作为强调的重点。因此，“it is presented as a retreat from his request that I buy some five-dollar tickets” 这句话的意思是，“被呈现出来的是从他要我买五美元门票的要求中撤退了。” 这里强调了“退缩”的行为。

就这样？没了？

这是一个主语从句。而It"s .....that是强调句 （1）主语从句。 It is important that students today master English. It is reported that China will send up a series of spaceships in the 21st century. It is a rule that everyone should obey the State"s laws. It happened that they were out visiting their friends. 可以看出，此类主语从句的句子成分无论是主语、谓语、宾语，还是各种状语都是完整的，并且不能称到“It is…”结构中去。这就是判别主语从句的基本点。 （2）强调句。 先举一个重点成分句：昨天我在书店看见了他。I saw him at the bookstore yesterday. 现将此句变成分别突出主语、宾语、地点及时间状语的强调句： A、It was I that/who saw him at the bookstore yesterday. B、It was him that I saw at the bookstore yesterday. C、It was at bookstore that I saw him yesterday. D、It was yesterday that I saw him at the bookstore. 比较无重点叙述对象原句和由此转换来的强调句可以看出，强调句是把原句拆散，把要强调的部分如主语、宾语、状语移到“It is…”之后。如果把“It is…that”去掉，并把移走的部分放回到原位，句子还是完整的，这就是判别强调句的基本方法。再把主语从句和强调句加以对比；主语从句各成分不能移到“It is…”结构中，而强调句则可以把句子的主语、宾语、状语等成分移到“It is”结构后面，其余放在“that”后面。 如果“It is…”之后是地点状语、时间状语、介词短语或从句，“It is…that”必为强调句型。除上面所述的C、D例句外，再补充例证如下： It was here/there that we took a picture of him last year. It was last year he went abroad. It was after I came here that I learned a lot.(我到此之后才学到很多东西。) It was not until he came back that we had dinner.(直到他回来后我们才吃饭。) 另外，在强调句“It is…”中, it is后不会出现形容词、过去分词及谓语词形式，这些词用在带有主语从句的“It is…that-clause”结构中。 （3）“It is…that”结构中的that可能引出定语从句。 It is this dictionary that I am looking for everywhere.（这是我求之不得的词典啊。） 在这样的句型中，it不再是形式主语或无意义，而是说话人心目中的指代的“那个”。that是关系代词，介词for的后面乍看无宾语，实际是前移走了。又如： It was the most fascinating place that we"ve visited.

结构是不一样的。It is +adj/n+ that-从句这个结构中，that-从句作主语，所以叫主语从句，it是形式主语，它是指代that-从句的。也可以改为That he will win the match is certain.但这个句子就显得头重脚轻了。英语中的形式主语it（或形式宾语it）就是为了避免头重脚轻而使用的。I am certain that...结构是：主语(一般是人）+be+形容词+that-从句比较常见的形容词有：sure, certain, glad, pleased, happy, sorry ,afraid, satisfied, surprised等I am glad that you are here.

用不懂得奇有不同的意思如It is said that you are a good student.据说你是个好学生。It"s believed that....

意思上this 是:这个that 是:那个it 是:它用法上this that it 都可以直接作主语也都可以做代词指代事物例子：this /that/it is an apple.但是,只有it可以做形式主语例：it is better to say hello to him.it 是形式主语,真正的主语是to say hello to him.it作为形式主语的时候可以代替动词不定式/ing/一个句子.“this”、“that”既可以作形容词,又可以作指示代词；而“it”只能作代词.one可用数词又可作代词.指“物” 1.“this”指近物,“that”指远物,“it”没有远近之分.如：This is a computer.这是一台电脑.（在近处） That is a bike.那是一辆自行车.（在远处） 2.在回答“this”和“that”作主语的疑问句时,常用“it”代替“this”和“that”.如：－Is this/that a car?这/那是一辆小汽车吗?－Yes,it is./No,it isn′t.是的,它是./不,它不是.－What′s this/that?这/那是什么?－It′s a ruler.这/那是一把尺子.3.陈述在一起的两样东西时,应先说“this”,后说“that”.如：This is a book.That is a pen.这是一本书,那是一枝钢笔.4.one与it的区别 one指代上文提到过的同类事物中的一个,但不是上文提到的那一个事物.如果指同类事物中的一些,要用ones.如：This apple is small.Please give me a big one.这个苹果小,请给我一个大的.These books are mine.Those ones are Lily"s.这些书是我的,那些书是莉莉的.it指代前文中提到过的那一个事物.如：My bike is very old,but I like it very much.我的自行车很旧,但我很喜欢它.Where is my new pen?I can"t find it.我的新钢笔在哪儿?我找不到它了.练一练：1.---This is my dog,Spotty.---Oh,________is very lovely.2.I havn"t a pen.Do you have_____

这是一个格形式主语从句，真正的主语在后面。举例说明：It is possible that you can make the world more beautiful！真正的主语就是that之后你可以使世界变得更美好。

."It is+形容词+of sb.to do sth.."和"It is+形容词+for sb.to do sth.."这两个句型使用频率都很高。前者表示说话人对客观事物的高兴、惊讶、遗憾、难过等情绪，表现的是人的性格、品质或特征，经常可以转换成:①How+形容词+it is+of sb.to do sth.!②How+形容词+of sb.to do sth.!③Sb.+is+形容词+to do sth..或④That is+形容词+of sb.to do sth.等;后者表示说话人对客观事件的决断性，根据具体情况可以转换成:①To do sth.is+形容词;②It is+形容词+that从句。如: It is possible to work out whether you will save or lose money by increasing the temperatureby1℃.(利用计算机)能够计算出温室里的温度升高一度会使你赚钱还是赔钱。Is it necessary to complete the design before National Day?在国庆节前完成这一设计有必要吗?It is stupid of him to refuse the invitation.他拒绝了邀请，真是件错事。上一句可转换成:How stupid it is of him to refuse the invitation! 或How stupid of him to refuse the invitation! 或He is stupid to refuse the invitation. It is better for you to live alone for sometime.你单独住一段时间更好。上一句可转换成:To live alone for sometime is better. 或It is better that you live alone for sometime.

是主语从句，it是形式主语。如果adj.是表示主观看法的形容词，要用虚拟语气should+do

有句例吗

英语常用的强调结构是"It is (was)+被强调部分(主语、宾语或状语)+who (that)..."。一般说来,被强调部分指人时,用who;指事物时用that,但that也可以指人。在美国英语中指事物时常用which来代替that。 扩展资料 　　1、陈述句的强调句型 　　It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。 　　例如：It was yesterday that he met Li Ping. 昨天他遇到了李平。 　　2、 一般疑问句的强调句型 　　It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。同上，只是把is/ was提到it前面。 　　例如：Was it yesterday that he met Li Ping? 昨天他遇到了李萍吗？ 　　3、特殊疑问句的强调句型 　　被强调部分（通常是疑问代词或疑问副词）+ is/ was + it + that/ who + 其他部分？ 　　例如：When and where was it that you were born? 你何时何地出生？ 　　4、not … until … 句型的强调句 　　句型为：It is/ was not until + 被强调部分 + that + 其他部分；此句型只用until，不用till。但如果不是强调句型，till, until可通用；因为句型中It is/ was not 已经是否定句了，that后面的.从句要用肯定句，切勿再用否定句了。 　　普通句：He didn"t go to bed until/ till his wife came back. 强调句：It was not until his wife came back that he went to bed. 　　5、谓语动词的强调 　　It is/ was ... that ... 结构不能强调谓语，如果需要强调谓语时，用助动词do/ does或did. 　　例如：Do sit down. 务必请坐。Do be careful when you cross the street. 过马路时，务必（千万）要小心啊！ 　　此种强调只用do/ does和did，没有别的形式；过去时用did，后面的谓语动词用原形。

1.主语从句的that不充当成分。强调句中的that充当成分。itisapitythatyouknownothingaboutit.主从。that无成分。itisapitythatyouthoughtit.强调句。that做thoughtit的宾补。

这是宾语从句，因为it is 加形容词，加that是形宾

it is that 强调句用法如下：当需要强调句中的主语，宾语和状语时，常用强调句：it is/was+ 被强调的部分 ＋that/who.He bought three books in the bookstore yesterday.强调主语：It was he that/who bought three books in the bookstore yesterday.强调宾语：It was three books that he bought in the bookstore yesterday.强调状语：It was in the bookstore that he bought three books yesterday.扩展资料1、陈述句的强调句型It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。例如：It was yesterday that he met Li Ping. 昨天他遇到了李平。2、 一般疑问句的强调句型It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。同上，只是把is/ was提到it前面。例如：Was it yesterday that he met Li Ping? 昨天他遇到了李萍吗？3、特殊疑问句的强调句型被强调部分（通常是疑问代词或疑问副词）+ is/ was + it + that/ who + 其他部分？例如：When and where was it that you were born? 你何时何地出生？4、not … until … 句型的强调句句型为：It is/ was not until + 被强调部分 + that + 其他部分；此句型只用until，不用till。但如果不是强调句型，till, until可通用；因为句型中It is/ was not 已经是否定句了，that后面的.从句要用肯定句，切勿再用否定句了。普通句：He didn"t go to bed until/ till his wife came back. 强调句：It was not until his wife came back that he went to bed.5、谓语动词的强调It is/ was ... that ... 结构不能强调谓语，如果需要强调谓语时，用助动词do/ does或did.例如：Do sit down. 务必请坐。Do be careful when you cross the street. 过马路时，务必（千万）要小心啊！此种强调只用do/ does和did，没有别的形式；过去时用did，后面的谓语动词用原形。

说明：“this”、“that”既可以作形容词,又可以作指示代词；而“it”只能作代词.one可用数词又可作代词.指“物” 1.“this”指近物,“that”指远物,“it”没有远近之分.如：This is a computer.这是一台电脑.（在近处） That is a bike.那是一辆自行车.（在远处） 2.在回答“this”和“that”作主语的疑问句时,常用“it”代替“this”和“that”.如：－Is this/that a car?这/那是一辆小汽车吗?－Yes,it is./No,it isn′t.是的,它是./不,它不是.－What′s this/that?这/那是什么?－It′s a ruler.这/那是一把尺子.3.陈述在一起的两样东西时,应先说“this”,后说“that”.如：This is a book.That is a pen.这是一本书,那是一枝钢笔.4.one与it的区别 one指代上文提到过的同类事物中的一个,但不是上文提到的那一个事物.如果指同类事物中的一些,要用ones.如：This apple is small.Please give me a big one.这个苹果小,请给我一个大的.These books are mine.Those ones are Lily"s.这些书是我的,那些书是莉莉的.it指代前文中提到过的那一个事物.如：My bike is very old,but I like it very much.我的自行车很旧,但我很喜欢它.Where is my new pen?I can"t find it.我的新钢笔在哪儿?我找不到它了.

这就是

几位网友说得都比我想说的好！他们学识渊博！

意思是,他讲完了.完了的意思.

它是 那是 那有 说不清啦

意思是 一个下雨天 希望可以帮到您，采纳是您的美德

it is that 强调句用法如下：当需要强调句中的主语，宾语和状语时，常用强调句：it is/was+ 被强调的部分 ＋that/who.He bought three books in the bookstore yesterday.强调主语：It was he that/who bought three books in the bookstore yesterday.强调宾语：It was three books that he bought in the bookstore yesterday.强调状语：It was in the bookstore that he bought three books yesterday.扩展资料1、陈述句的强调句型It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。例如：It was yesterday that he met Li Ping. 昨天他遇到了李平。2、 一般疑问句的强调句型It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。同上，只是把is/ was提到it前面。例如：Was it yesterday that he met Li Ping? 昨天他遇到了李萍吗？3、特殊疑问句的强调句型被强调部分（通常是疑问代词或疑问副词）+ is/ was + it + that/ who + 其他部分？例如：When and where was it that you were born? 你何时何地出生？4、not … until … 句型的强调句句型为：It is/ was not until + 被强调部分 + that + 其他部分；此句型只用until，不用till。但如果不是强调句型，till, until可通用；因为句型中It is/ was not 已经是否定句了，that后面的.从句要用肯定句，切勿再用否定句了。普通句：He didn"t go to bed until/ till his wife came back. 强调句：It was not until his wife came back that he went to bed.5、谓语动词的强调It is/ was ... that ... 结构不能强调谓语，如果需要强调谓语时，用助动词do/ does或did.例如：Do sit down. 务必请坐。Do be careful when you cross the street. 过马路时，务必（千万）要小心啊！此种强调只用do/ does和did，没有别的形式；过去时用did，后面的谓语动词用原形。

主语从句。it是形式主语

1.It is + 被强调部分 + that ... 就是强调句 该句型是强调句型.将被强调的部分放在前面,其它部分置于that之后.被强调部分可以是主语,宾语,表语或状语.强调的主语如果是人,that可以由who换用.如果把这种句型结构划掉后,应该是一个完整无缺的句子.这也是判断强调句型与其它从句的方法. It was about 600 years ago that the first clock with a face and an hour hand was made. It was they that (who ) cleaned the classroom yesterday. It was in the street that I met her father. 补充： 2. It is not until + 被强调部分 + that ... 该句型也是强调句型.主要用于强凋时间状语,译成汉语”直到．．．才．．．”,可以说是 not ... until ... 的强调形式. It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star. = I didn"t realize she was a famous film star until she took off her dark glasses. 3. It is clear ( obvious, true, possible, certain.) that . 该句型中it 是形式主语,真正的主语是that 引导的主语从句,常译为”清楚（显然,真的,肯定．．．）” 是主语从句最常见的一种结构. It is very clear that he"s round and tall like a tree. = That he"s round and tall like a tree is very clear. 4. It is important ( necessary, right, strange, natural...) that ... 该句型和上一个同属一个句型.由于主句中的形容词不同,that 后的从句中要用虚拟语气（should + 动词原形）,should 可以省去.建议记住该句型中的形容词. It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned.) that ... 该句型中的it 仍是形式主语,真正主语是that 引导的主语从句.该结构常译为”据说（据报道,据悉．．．）”. It is said that he has come to Beijing. It is reported that another earth satellite has been put into orbit. 6. It is suggested ( ordered ... ) that ... 该句型和上一个同属一个句型.主句中的过去分词是表示请求,建议,命令等词时,that 后的从句要用虚拟语气（should + 动词原形）,should 可以省.常译为”据建议；有命令．．．） It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours. 7. It is a pity ( a shame ... ) that ... 该句型中,that后的从句一般用虚拟语气（should + 动词原形）,should可省去．表示出乎意料,常译为”竟然”.没有这种意义时,则不用虚拟语气. It is a pity that such a thing ( should ) happen in your class. 这种事竟然发生在你们班上,真是遗憾! It is a pity that he is ill. 他生病了,真遗憾! 8. It is time ( about time ,high time ) that ... 该句型中that 后的从句应该用虚拟语气,值得注意的是① 常用过去时态表示虚拟．② 有时也用should + 动词原形,should 不能省.常译为”是（正是）．．．的时侯．．．”. It is time that children should go to bed. = It is time that children went to bed. 9. It is the first ( second ... ) time that ... 该句型要和上一个句型区别开来.该句型中的 that 从句不用虚拟语气,而用完成时态. 至于用什么完成时态,由主句的谓语动词的时态决定.如果是一般现在时,后面从句用现在完成时态；如果是一般过去时,后面从句则用过去完成时态.该结构中 that 可以省去；it有时用 this 替换．常译为”是第一（二）．．．次．．．”. It is the first time I have been here. = This is the first time I have been here.

主语从句，it作形式主语指代后面的that从句，但为了避免头重脚轻就把that从句置后了，实际上that从句是主语，所以是主语从句。that后面接完整的句子，that在从句中不做任何成分，没有实际意义。 主语从句 主语从句，即在复合句中充当主语成分的句子，例如"That he finished writing the composition in such a short time surprised us all"，他在很短的时间内写完作文让我们都很惊讶，此复合句主要描述的是某事让我们惊讶，某事就是该复合句的主语，因此“That he finished writing the composition in such a short time”便是该复合句的主语从句。 引导主语从句的连词主要有： 从属连词：that whether 连接代词：whom whose who whoever what whatever which whichever 连接副词：why when whenever where wherever how however

最简单的方法就是如果除掉Itis......that....，这个句子还是完整的，则是强调句，不完整则是主语从句其实结构相似但不相同,形似而神散,Itis+形容词、动词的现在分词/过去分词+主语从句Itisimportantthatteachersrespecttheirstudents.Itisbelievedthatdogsknowmenbysmell.Itisinterestingthatnobodyknewit.Itis(was)+名词、代词、介词短语+that+句子IsawamannakedrunninginQuanchengSquarelastnight.ItwasIthatsawamannakedrunninginQuanchengSquarelastnight.ItwasamannakedthatIsawrunninginQuanchengSquarelastnight.ItwasinQuanchengSquarethatsawamannakedrunninglastnight.ItwaslastnightthatIsawrunninginQuanchengSquare.

两者没有区别的：）很口语的一句话，外国人说的时候很随意：）两者都可以表示为就是这样~在上完课时，正式些应该是let"scallitaday.Classsover.祝你快乐：）

第一个希望你们能不能帮助你

it is 它是that is 那是

It一般作为形式主语（无主语句子的主语），翻译的时候可以不翻译。 这样解释不知道你能否明白

It一般作为形式主语（无主语句子的主语），翻译的时候可以不翻译。 这样解释不知道你能否明白

is是动词， this that it是代词，所以is不同类。

你好！Thatitis是不过如此意思希望对你有所帮助，望采纳。

B

is that it？就这个吗？助动词提前

it"s 是指进处的物体，that"s指的是远处的物体

"it is that" 是一个引导同位语从句的结构，用于进一步解释或说明先行词。同位语从句是一个解释或说明先行词的从句，它通常跟在先行词后面，用于进一步解释或说明先行词。"it is that" 引导的同位语从句一般放在先行词后面，用于进一步解释或说明先行词。例如：My favorite food, it is that which reminds me of home.（我最喜欢的食物，正是那种让我想起家乡的食物。）在这个例子中，“it is that which reminds me of home” 是一个同位语从句，解释了先行词“my favorite food”的具体内容。"it is that" 也可以用作引导主语从句的结构。在这种情况下，"it" 是形式主语，而主语从句则是真正的主语。例如：It is that she left without saying goodbye that hurts me the most.（她不告而别，正是这点让我最受伤。）在这个例子中，“that she left without saying goodbye” 是一个主语从句，而 "it" 则是形式主语，用于引导主语从句。

It is +the +序数词+time +that 从句，从句用现在完成时，译成这是第几次。。。。。。了例：It"s the first time that I have spoken English.这是我第一次说英语。

It is a secret that I have a brother.我有哥哥是个秘密。

THIS IS 这个是 THAT IS 那个是 THERE IS 有 IT IS 它是

It is (was)+形容词（或过去分词）+that…… 结构中, 常用的形容词：natural (自然的),appropriate (适当的),advisable (合适的),preferable (更可取的),better (更好的)，necessary (必须的),important (重要的),imperative (急需的)urgent (急迫的),essential (本质的),vital (必不可少的)，crucial（紧急的）probable (很可能的),possible (可能的)，desirable (极好的)，advisable（合理的）,compulsory（必须的）,desirable（理想的）, essential（必要的） , imperative（迫切的）,incredible（惊人的）,necessary（必要的）,possible（可能的）,strange（奇怪的）,urgent（紧迫的）。。。It is important that It is believed that It is interesting that It is necessary thatIt is suggested thatIt is time that

你好！展开全部这是强调句，强调itis后that前的成分如有疑问，请追问。

It一般作为形式主语（无主语句子的主语），翻译的时候可以不翻译。这样解释不知道你能否明白