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field怎么读 field如何读

2023-07-23 23:21:21
TAG: field fi el
共1条回复
meira

1、field英[fiu02d0ld]美[fiu02d0ld]。

2、n.领域; 田; 地; 牧场; (作某种用途的)场地; (覆盖…的或有…的)大片地方;

3、v.使参加竞选; 使参加比赛; 担任守队(队员); 任守方; 接,截,传(球);

4、[例句]Technology in this field has matured considerably over the last decade.这一领域的技术经过过去十年的发展已经相当完善。

5、[其他]第三人称单数:fields 复数:fields 现在分词:fielding 过去式:fielded 过去分词:fielded。

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field与court的用法区别

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n. 领域;牧场;旷野;战场;运动场vi. 担任场外队员adj. 扫描场;田赛的;野生的vt. 把暴晒于场上;使上场n. (Field)人名;(英、法、德、葡)菲尔德[网络] 场;字段;域
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field怎么读

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field领域领域 [ lǐng yù ] 生词本基本释义 详细释义[ lǐng yù ]1.一个国家行使主权的区域。2.学术思想或社会活动的范围:思想~。生活~。在自然科学~内,数学是最重要的基础。
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field ["fi:ld] n. 领域;牧场;旷野;战场;运动场vi. 担任场外队员adj. 扫描场;田赛的;野生的vt. 把暴晒于场上;使上场有不明白的地方再问哟,祝你学习进步,更上一层楼! (*^__^*)
2023-07-23 22:34:361

field怎么读

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2023-07-23 22:34:451

field和yield区别

1、field,作名词是表示领域;田;地;牧场;(作某种用途的)场地;(覆盖?的或有?的)大片地方;专业;实地;运动场;守队;(比赛项目的)全体参赛者;行业;场;字段等意思。作动词时表示使参加竞选;使参加比赛;担任守队(队员);任守方;接,截,传(球);处理,应付(问题或意见)等意。作形容词时是野生的;野外的;实地的的意思。2、yield,名词是产量;产出;利润等意。动词时是屈服;出产(作物);产生(收益、效益等);提供;让步;放弃;缴出;(受压)活动,变形,弯曲,折断;给(大路上的车辆)让路等意。
2023-07-23 22:35:411

iOS 蓝牙通信技术(EAP和BLE)

iOS连接外设的几种方式,无疑就下面几种方式:GameKit、CoreBluetooth和ExternalAccessory,GameKit早已废弃。那就剩下CoreBluetooth和ExternalAccessary两个框架,有图可知,EAP要MFi认证,要求设备的设计理念符合苹果的要求,据说通过率是2%。大部分公司都是放弃的,所以绝大部分公司采取的是BLE这套框架,但是门槛高有他的好处,这套框架很强大,不仅可以进行无线蓝牙通信,还可以进行有线通信,就是通过USB通信。 BLE通信方式很简单就不做说明,说一下BLE通信过程中大家忽视的东西,希望对大家有帮助。 很多做过蓝牙的人都很确定BLE通信中iOS拿不到设备的MAC地址,那我就验证给大家看能不能拿到! 在BLE协议中 - (void)centralManager:(CBCentralManager*)central didDiscoverPeripheral:(CBPeripheral*)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber*)RSSI; 可以同过advertisementData广告包中获取这几个属性值 画红线处就是MAC地址,只是要处理一下,我用安卓手机测试,得到的MAC地址是E0:DA:AA:AB:5D:E7, 第二中获取MAC地址的方式是链接之后才能获取,在特种纸Read里面可以读取到,也是要经过处理。 综上,iOS是可以得到MAC地址的,希望能为大家扫除得不到MAC地址的这个误区。
2023-07-23 22:23:281

龙源期刊网vip账号 求下载一篇论文 网址是http://www.qikan.com.cn/article/csjl201335629.html

公路工程中软土地区路基处理措施 摘要:修建在软土地区的路基,主要是路堤填筑荷载引起软基滑动破坏的稳定问题和大量且时间长的沉降问题。本文为了减少软土路基出现的问题,总结了几种软土路基的处理措施。  关键词:软土地区;路基;处理措施  中图分类号:U231文献标识码: A  1 前言  淤泥、淤泥质土及天然强度低、压缩性高、透水性小的一般黏土统称为软土[1]。软土地区的路基特点是强度低、变形量大且持续时间长,含水量高且透水性差。修建在软土地区的路基,会出现一系列的问题,如路基滑动破坏的稳定问题,沉降问题。因此,必须对软基进行处理,才能满足工程需要。为了解决软土路基问题,本文总结了几种软土路基的处理措施。  2 软土路基的处理措施  2.1 表层处理法  (1)砂垫层  在软土层顶面铺砂垫层,主要起浅层水平排水作用,使软土在路堤自重的压力作用下,加速沉降发展,缩短固结时间。但对基底应力分布和沉降量的大小无显著影响。  砂垫层用于路堤高度小于2倍极限高度(在天然软土地基上,基底不作特殊加固处理而用快速施工方法修筑路堤的填筑最大高度)软土层及其硬壳较薄,或软土表层渗透性很低的硬壳等情况。亦可用于软土层稍厚但具有双面排水条件的地基[2]。有排水砂垫层、换土砂垫层、砂垫层和土工布混合使用等形式。  (2)反压护坡道  在路堤两侧填筑一定宽度和高度的护道,以改善路堤荷载方式来增加抗滑力,使路堤下软基向两侧隆起的趋势得到平衡,从而保证路堤的稳定性。  反压护道用于路堤高度不大于1.5~2倍的极限高度,非耕作区和取土不太困难的地区。   (3)土工聚合物处治  ① 土工布  土工布铺设于路堤底部,在路基自重作用下受拉产生抗滑力矩,提高路基稳定性。土工布在软土地基加固中的作用包括排水、隔离、应力分散和加筋补强。土工布连接一般采用搭接或缝接法。缝接法有一般缝法、丁缝法和蝶形法。  ② 土工格栅  土工格栅加固土的机理在于格栅与土的相互作用,一般可归纳为格栅表面与土的摩擦作用、格栅孔眼对土的锁定作用和格栅肋的被动抗阻作用[3]。三种作用均能充分约束土的颗粒侧向位移,从而大大地增加了土体的自身稳定性,对土的加固效果,明显高于其他土木织物,可迅速提高地基承载力,加快施工进度,控制软基地段沉降量发展,缩短工期,使公路及早投入使用。  2.2 换填法  换填法一般适用于地表下0.5~3.0m之间的软土处治。  (1)开挖换填法   将软弱地基层全部挖除或部分挖除,用透水性较好的材料(如砂砾、碎石、钢渣等)进行回填。该方法简单易行,也便于掌握。对于软基较浅(1~2m)的泥沼地特别有效。但对于深层软基处理,要求沉降控制较严的路基、桥涵构造物、引道等,应考虑采用其他方法。  (2)抛石挤淤法  在路基底部抛投一定数量片石,将淤泥挤出基底范围,以提高地基的强度。这种方法施工简单、迅速、方便,适用于常年积水的洼地,排水困难,泥炭呈流动状态,厚度较薄,表层无硬壳,片石能沉达底部的泥沼或厚度为3~4m的软土;在特别软弱的地面上施工由于机械无法进入,或是表面存在大量积水无法排除时;石料丰富、运距较短的情况。  (3)爆破排淤法  将炸药放在软土或泥沼中爆炸,利用爆炸时的张力作用,把淤泥或泥沼扬弃,然后回填强度较高的渗水性土壤,如砂砾、碎石等。爆破排淤较一般方法换填深度大、工效较高,软土、泥沼均可采用。   爆破排淤法用于当淤泥(泥炭)层较厚,稠度大,路堤较高和施工期紧迫时;路段内没有桥涵等构造物,路基承载力均衡一致,因整体沉降对道路不会产生破坏,也可考虑换填。但对桥涵构造物及两侧引道等,应考虑采用其他方法。  2.3 重压法  (1)堆载预压法   在软基上修筑路堤,通过填土堆载预压,使地基土压密、沉降、固结,从而提高地基强度,减少路堤建成后的沉降量。进行预压的荷载超过设计的道路工程荷载,称为超载预压;预压荷载等于道路工程荷载,称为等载预压。  (2)其他重压法  ① 真空预压法  利用大气压强0.098Mpa等效堆载预压法对软基进行加固。即依靠真空抽气设备,使密封的软弱地基产生真空负压力,使土颗粒间的自由水,空气沿着纵向排水通道,上升到软基上部砂垫层内,由砂垫层过滤再排到软基密封膜以外,从而使土体团结。该法适用于含水量高、孔隙比大、强度低、渗透系数和固结系数均较小的黏土。   ② 真空预压加堆载预压法   堆载预压和真空预压方法两种方法的结合,原理与真空预压相同,但加载更大,预压时间缩短了一半。  2.4 垂直排水固结法  利用砂井、袋装砂井、塑料排水板增加土层竖向排水途径,缩短排水距离、加速地基固结。  (1)砂井   用振动打桩机、柴油打桩机(冲击式和振动式)以及下端装有活瓣钢桩靴的桩管将砂(含泥量不大3%)或砂和角砾混合料(含泥量不大于5%)灌入形成砂井。在施工时考虑避免“缩颈”和减少对土的扰动。  砂井适用于软土层厚度大于5m的条件,最大有效处理深度18m。  (2)袋装砂井   主要用导管式振动打桩机(在行进方式上普遍采用的有轨道门架式、履带臂架式、吊机导架式等),选用聚丙烯或其他适用的编织料制成的袋,采用渗水率较高的中、粗砂(大于0.5mm的砂的含量宜占总重的50%以下,含泥量不应大于3%,渗透系数不应小于5×10-3cm/s)制成砂袋。砂袋砂井按整平原地面→摊铺下层砂垫层→机具定位→打入套管→沉入砂袋→拔出套管→机具移位→埋砂袋头→摊铺上层砂垫层的施工工艺流程进行。  (3)塑料排水板   用插板机或与袋装砂井打设机共用(将圆形套管换成矩形套管)打设。按整平原地面→摊铺下层砂垫层→机具就位→塑料排水板穿靴→插入套管→拔出套管→割断塑料排水板→机具移位→摊铺上层砂垫层的施工工艺程序进行。振动打设工艺。锤击振力大小,根据每次打设根数、导管断面大小、入土长度和地基均匀程度确定。  2.5 其他软基处理施工技术  (1)旋喷桩   根据固化剂喷入的形态(浆液或粉体),采用不同的施工机械组合。用水泥、生石灰、粉煤灰等作为加固料。利用工程钻机,将旋喷注浆管置入预定的地基加固深度,通过钻杆旋转,徐徐上升,将预先配置好的浆液以一定的压力从喷嘴喷出,冲击土体,使土和浆液搅拌成混合体,形成具有一定强度的人工地基,最大有效处理深度20m。  (2)粒料桩  主要用振动器、吊机或施工专用平车和水泵,将砂、碎石、砂砾、废渣等粒料(粒径宜为20~50mm,含泥量不应大于10%)加入振密。按整平地面→振冲器就对对中→成孔→清孔→加料振密→关机停水→振冲器移位的施工工艺程序进行。  选择振冲器型号应与桩径、桩长及加固工程离周围建筑物距离相适应。应配备使用的供水设备,出水口压应为400~600kPa,流量20~30m3/h。起重机械起吊能力应大于100~200kN。  (3)生石灰桩   主要用振冲器、吊机或施工专用步履式、门架式振动沉桩设备。配备适用的空压机,起重机械起吊能力应大于100~200kN。使用材料为生石灰(颗粒直径不超过30mm要求填充材料要密实)。按整平地面→振冲器就位对中→成孔→空气压缩机注入生石灰→边振动边拔出套管→振动器移位→封紧生石灰桩孔的施工工艺程序进行。   选择振冲器型号应与桩径、桩长及加固工程离周围建筑物距离相适应。  参考文献  [1] JTG F80/1-2004.公路工程质量检验评定标准[S].  [2] JTJ017-96.公路软土地基路基设计与施工技术规范[S].  [3] 俞伯汀,孙红月,尚岳全,等.浙江下山滑坡特征及稳定性分析 [J].岩石力学与工程学报,2006,25(SI):2875~2881.
2023-07-23 22:23:281

the past前面加什么介词

the past前面介词加for , in , over等介词,根据表达的意思不同,选择的介词不同。例如:for the past表示在近...时间内;over the past表示在过去的...时间中;in the past表示在过去。介词用于表示名词、代词等与句中其他词的关系,表示时间的介词被称为时间介词,有:at, on, in, before, after等;表示空间的介词有:at, in, on, over, above, under, below 等;表示做某事的方法、手段的介词有:by, with, in, at, on。
2023-07-23 22:23:291

BrookeBernard是哪里人

BrookeBernardBrookeBernard是一名影视人物,主要作品有《浅肤色的女孩》,《普蒂安》,《TheColonel"sBride》,《垃圾保险杆》等。外文名:BrookeBernard职业:制作人代表作品:地中海合作人物:乔纳斯·卡皮纳诺
2023-07-23 22:23:291

一个军人把鞋子放在修理铺去修理却一直没有去取。 请写一下后面发生的事。大概200---400就可以了

多加点分再说
2023-07-23 22:23:304

summary dismissal是什么意思

summary dismissal_百度翻译summary dismissal [英]u02c8su028cmu0259ri du026asu02c8mu026asu0259l [美]u02c8su028cmu0259ri du026asu02c8mu026asu0259l 立即解雇 [例句]Curtis has said that he plans to appeal against his summary dismissal.柯蒂斯说他打算就他被简率开除一事提起申诉。
2023-07-23 22:23:342

第四课预习BLE网络特点有哪些?

有以下特点:第一点就是,ble采用了多种纠错功能,数据重传功能,使得蓝牙通讯具有高可靠性。第二点是成本低,功耗低。市面上比较常用的蓝牙芯片,也就几块钱到十几块钱。一颗纽扣电池,可以使用很久。第三点就是,蓝牙BLE连接启动的速度非常快。2到3个毫秒就可以连接完成,基本上是瞬间完成的。
2023-07-23 22:23:351

In the past可以放在句尾吗

可以
2023-07-23 22:23:374

龙源期刊网免费入口

龙源的收费相对便宜,学术期刊比较少。图书馆的帐号大都是绑定IP地址的,需要可以帮你下载全文。
2023-07-23 22:23:382

英语演讲稿:英语演讲稿:The Space Shuttle

12月23日 liuxue86.com英语频道特为大家准备相关的学习资料,希望对大家有用。 Ladies and Gentlemen, I"d planned to speak to you tonight to report on the state of the union , but the events of earlier today have led me to change those plans. Today is a day for mourning and remembering. Nancy and I are pained to the core by the tragedy of the shuttle Challenger. We know we share this pain with all of the people of our country. This is truly a national loss. Nineteen years ago, almost to the day, we lost three astronauts in a terrible accident on the ground. But we"ve never lost an astronaut in flight. We"ve never had a tragedy like this. And perhaps we"ve forgotten the courage it took for the crew of the shuttle. But they, the Challenger Seven, were aware of the dangers, but overcame them and did their jobs brilliantly. We mourn seven heroes: Michael Smith, Dick Scobee, Judith Resnik, Ronald McNair, Ellison Onizuka, Gregory Jarvis, and Christa McAuliffe . We mourn their loss as a nation together. For the families of the seven, we cannot bear, as you do, the full impact of this tragedy. But we feel the loss, and we"re thinking about you so very much. Your loved ones were daring and brave, and they had that special grace, that special spirit that says, "Give me a challenge, and I"ll meet it with joy." They had a hunger to explore the universe and discover its truths. They wished to serve, and they did. They served all of us. We"ve grown used to wonders in this century. It"s hard to dazzle us. But for twenty-five years the United States space program has been doing just that. We"ve grown used to the idea of space, and, perhaps we forget that we"ve only just begun. We"re still pioneers. They, the members of the Challenger crew, were pioneers. And I want to say something to the schoolchildren of America who were watching the live coverage of the shuttle"s take-off. I know it"s hard to understand, but sometimes painful things like this happen. It"s all part of the process of exploration and discovery. It"s all part of taking a chance and expanding man"s horizons. The future doesn"t belong to the fainthearted; it belongs to the brave. The Challenger crew was pulling us into the future, and we"ll continue to follow them. I"ve always had great faith in and respect for our space program. And what happened today does nothing to diminish it. We don"t hide our space program. We don"t keep secrets and cover things up. We do it all up front and in public. That"s the way freedom is, and we wouldn"t change it for a minute. We"ll continue our quest in space. There will be more shuttle flights and more shuttle crews and, yes, more volunteers, more civilians, more teachers in space. Nothing ends here; our hopes and our journeys continue. I want to add that I wish I could talk to every man and woman who works for NASA, or who worked on this mission and tell them: "Your dedication and professionalism have moved and impressed us for decades. And we know of your anguish. We share it." There"s a coincidence today. On this day three hundred and ninety years ago, the great explorer Sir Francis Drake died aboard ship off the coast of Panama . In his lifetime the great frontiers were the oceans, and a historian later said, "He lived by the sea, died on it, and was buried in it." Well, today, we can say of the Challenger crew: Their dedication was, like Drake"s, complete. The crew of the space shuttle Challenger honored us by the manner in which they lived their lives. We will never forget them, nor the last time we saw them, this morning, as they prepared for their journey and waved goodbye and "slipped the surly bonds of earth" to "touch the face of God." Thank you. 常识普及:英语演讲稿种类:1。叙述式:向听众陈述自己的思想、经历、事迹,转述自己看到、听到的他人的事迹或事件时使用的。叙述当中,也可夹用议论和抒情。2。议论式:摆事实、讲道理,既有事实材料,又有逻辑推断,立场坚定,旗帜鲜明。3。说明式:对听众说明事理,通过解说某个道理或某一问题来达到树立观点的目的。
2023-07-23 22:23:391

“等等…”用英文怎么说?

the other countries and so on
2023-07-23 22:23:418

Institut Vatel 瓦岱勒国际酒店管理与旅游管理商学院的介绍

Institut Vatel 瓦岱勒国际酒店管理与旅游管理商学院 ,又称华泰国际酒店与旅游管理商学院。瓦岱勒Vatel瑞士马蒂尼 ( Martigny ) 校区为全球旗舰校区,瓦岱勒Vatel法国拥有巴黎 ( Paris ) 、里昂 ( Lyon ) 、波尔多 ( Bordeaux ) 和尼姆 ( Nimes ) 四个校区,在世界其他各国拥有二十四家分校,包括美国、加拿大、俄罗斯、泰国、马来西亚、阿根廷、墨西哥、突尼斯、智利等。
2023-07-23 22:23:271

英语词汇辨析 redundancy与dismissal区别

恩 我刚才用oxford 查了一下 r说的是the situation,d说的是the act所以用 face redundancy
2023-07-23 22:23:272

为什么网上金日禾野的猴头菇米糊便宜,是正品吧?

买的便宜可能是他们的环保版包装米糊,线上专供比一般的实惠。猴头菇中含氨基酸、多糖和不饱和脂肪酸,有养胃的作用,还可以帮助降低人体胆固醇含量。金日禾野的产品入驻全国3万多家商超,产品品质是除了有专业机构、经销商、各大超市都经过把关。产品都是经过严格质检的。
2023-07-23 22:23:241

RobynBernard是做什么的

RobynBernardRobynBernard是一名演员,参演作品有《综合医院》。外文名:RobynBernard职业:演员代表作品:《综合医院》合作人物:LindzeLetherman电视剧作品
2023-07-23 22:23:221

初中常用英语语法:与in the past连用的时态

以下是 英文写作翻译频道为大家整理的《初中常用英语语法:与in the past连用的时态》,供大家参考。更多内容请看本站 写作翻译 频道。 与in the past连用的时态   介词短语 in the past 在句中用时间状语时,既可以连用一般过去时,也可以连和现在完成时,两者的区别是:用一般过去时,客观地叙述过去的情况;用现在完成时,强调持续到现在的状态或对现在影响。   一、与一般过去时连用   In the past, people had fewer expectations. 过去,人们的希求要少一些。   The capital of England is London. In the past it was Winchester. 英国现在的首都是伦敦,过去是温切斯特。   In the past he had to read by candlelight. 过去他只得在烛光下攻读。   In the past, people thought it was their religious duty to give alms to the poor. 过去,人们认为给穷人施舍是他们的宗教义务。   In the past, bear-baiting was a common form of entertainment in Britain. 过去,纵狗逗熊是英国人的一种常见娱乐方式。   In the past, a woman needed to be chaste to make a good marriage. 过去,女子要想有个好的婚姻就得守贞洁。   In the past, navigation depended on a knowledge of the positions of the stars. 过去,航行依靠人们对星星位置知识的了解。   In the past, navigation depended largely on the positions of the stars. 过去,航行在很大程度上依靠星星的位置。   Today, people are much more concerned about their health than they were in the past. 现在人们比过去更关注自己的健康。   二、与现在完成时连用   The two sides will have to be better and tougher than either has beenin the past. 双方都必须比过去更好一些、更强硬一些。   They have been so feather-bedded in the past that they can"t cope with hardship now. 他们一直娇生惯养,所以现在过不了苦日子。   In the past this process of transition has often proved difficult. 过去这种过渡过程常证明是困难的。   In the past they"ve tended to turn a deaf ear to such requests. 过去他们对这样的请求从来都是置若罔闻的。   We have achieved much in the past, and we may hope to achieve even more in the future. 过去我们已取得很大成绩,将来我们希望取得更大的成绩。
2023-07-23 22:23:221

中级美国英语-23

第二十三课 被动语态(一)   一.本课要点及示例   在这一课里,我们要学习被动语态. 比方有一句话: "我们的车修好了." Our car was repaired. 在这句话里, 主语 "车" car 就是动作 "修理" repair 的对象.   现在我们来听一段包含了被动语态句子的对话, 内容是说凯特跟亨利从修汽 车谈到上成人学校的事情. 请你注意听两位英文教师的发音和语调.   M: Kate, our car needs to be fixed again.   F: But it was just repaired a few months ago.   M: I know. Maybe the repair job wasn"t done well.   F: I hope that it will be fixed this time.   M: I hope so too. I wish I knew about car repair.   F: Why don"t you learn? I"m sure courses are offered on car repair at Seattle Community College.   M: That"s a good idea. I wonder when courses begin.   F: Let"s get a school catalogue and see what courses are scheduled. I"d like to take a computer course.   M: Imagine, Kate, you and I going back to school.   现在我请两位英文老师用慢速度再把整段对话念一遍.   M: Kate, our car needs to be fixed again.   F: But it was just repaired a few months ago.   M: I know. Maybe the repair job wasn"t done well.   F: I hope that it will be fixed this time.   M: I hope so too. I wish I knew about car repair.   F: Why don"t you learn? I"m sure courses are offered on car repair at Seattle Community College.   M: That"s a good idea. I wonder when courses begin.   F: Let"s get a school catalogue and see what courses are scheduled. I"d like to take a computer course.   M: Imagine, Kate, you and I going back to school.   下面我们来听刚才那段对话里的被动语态句子.   M: Our car needs to be fixed again.   F: It was repaired a few months ago.   M: Maybe the repair job wasn"t done well.   F: I hope that it will be fixed this time.   F: Courses are offered on car repair.   M: Let"s see what courses are scheduled.   二.被动语态   听了上面的句子,或许你已经注意到被动语态就是以助动词 be, b-e, be加上及 物动词的过去分词构成的.   现在我请英文老师念一些句子把主动语态和被动语态作个比较. 句子的内容 都是有关修理汽车的事情. 比方, 男老师说: " 修车工人装了新刹车." The mechanic installed new brakes. 女老师就用被动语态说: "刹车装好了." New brakes were installed. 现在我们开始. 请你注意听.   M: The mechanic repaired the car.   F: The car was repaired.   M: The mechanic did the repair job.   F: The repair job was done.   M: The mechanic changed the oil.   F: The oil was changed.   M: The mechanic installed new brakes.   F: New brakes were installed.   下面我们要比较否定句的主动语态和被动语态;句子的内容还是说到修车, 比 方修车工人没有检查引擎, 没有换电池等等. 请你注意听.   M: The mechanic didn"t fix the car.   F: The car wasn"t fixed.   M: The mechanic didn"t check the engine.   F: The engine wasn"t checked.   M: The mechanic didn"t change the battery.   F: The battery wasn"t changed.   M: The mechanic didn"t wash the car.   F: The car wasn"t washed.   在今天这一课的对话里, 亨利和凯特除了谈修车以外, 还谈到社区大学为了让 成人进修而在晚上设立的成人教育计划. 下面一组练习谈的就是成人教育计 划. 比方他们排了很多课, 寄出了学校目录, 招收成人学生, 使学生的生活更充 实等等. 练习的作法是由男老师念主动语态句子, 请你把句子改成被动语态说 出来. 每作完一句就请你听女老师念正确答案.   M: They offered various courses at night.   F: Various courses were offered at night.   M: They scheduled various courses at night.   F: Various courses were scheduled at night.   M: They sent out catalogues.   F: Catalogues were sent out.   M: They enrolled adult students at night.   F: Adult students were enrolled at night.   M: They enriched adult students" lives.   F: Adult students" lives were enriched.   刚才我们练习的都是过去式句子, 现在我们练习把那些句子改成现在完成式.   现在完成式被动语态就是用 have been 或是 has been加上及物动词的过去分 词. 练习的作法是老师用疑问词提出问句,接着老师念一个字或是词, 请你用 你听到的回答问题. 每作完一句还是请你听正确答案.   M: What has been offered?   M: various courses   F: Various courses have been offered.   M: What has been scheduled?   M: various courses   F: Various courses have been scheduled.   M: What has been sent out?   M: catalogues   F: Catalogues have been sent out.   M: Who has been enrolled?   M: adult students   F: Adult students have been enrolled.   M: Whose lives have been enriched?   M: adult students"   F: Adult students" lives have been enriched.   下面一组练习是说人们为什么要上成人学校, 比方他们要受更多教育,需要更 多知识; 他们也需要受特别训练, 得到特别技能, 以便找新职业和更好的工作 等等. 练习的作法是老师念现在式主动语态句子,学生就用 is 或是 are 加上动 词 "需要" 的过去分词 needed, 把句子改成被动语态说出来. 学生作练习的时 候, 请你也一起作.   M: Students need more education.   F: More education is needed   M: Students need more knowledge.   F: More knowledge is needed.   M: Students need special training.   F: Special training is needed.   M: Students need special skills.   F: Special skills are needed.   M: Students need new professions.   F: New professions are needed.   M: Students need better jobs.   F: Better jobs are needed.   刚才那个练习里有些字可能你不太熟, 现在我们再把练习里的被动语态句子 重复练习一下. 每个句子我们念两遍, 请你听一遍, 跟着老师重复一遍.   M: More education is needed.   F: More education is needed.   M: More knowledge is needed.   F: More knowledge is needed.   M: Special training is needed.   F: Special training is needed.   M: Special skills are needed.   F: Special skills are needed.   M: New professions are needed.   F: New professions are needed.   M: Better jobs are needed.   F: Better jobs are needed.   刚才我们用被动语态句子叙述了学生的需要; 现在我们作一组练习, 看看成 人学校应该教什么课程. 比方有一句话: "他们应该教工程学" They should teach engineering. 这句话改成被动语态就应该把should teach 变成 should be taught, 整句话应该是: Engineering should be taught. 这组练习的作法是由老 师把刚才那句话念一遍, 接着老师念出一个课程的名称, 比方: "会计学" accounting. "通讯学" communication, "铅管业" plumbing, "修理电动设备" electrical repair, "先进技术" advanced technology 等等, 学生就把老师提出 的字或是词代换到句子里. 现在我们开始作练习. 学生作练习的时候请你也 一起作.   M: Engineering should be taught.   M: computer science   F: Computer science should be taught.   M: accounting   F: Accounting should be taught.   M: communication   F: Communication should be taught.   M: plumbing   F: Plumbing should be taught.   M: electrical repair   F: Electrical repair should be taught.   M: foreign languages   F: Foreign languages should be taught.   M: advanced technology   F: Advanced technology should be taught.   除了助动词 should 以外, 包含其它助动词的句子, 在变成被动语态的时候 也 都是在助动词后面加上 be 再加上动词的过去分词. 比方: Engineering will be taught. Engineering can be taught 跟 Engineering might be taught 等等. 这种变 化等一会儿我们还有机会练习. 下面我们练习用现在进行式被动语态来叙述 成人学校这个学期正在教什么课. 老师先念一个主动语态句子, 学生就用 is 或是 are 加上 being, b-e-i-n-g, being 再加上动词的过去分词构成被动语态说 出来. 在学生作练习的时候, 请你跟着一起作.   M: They are teaching electrical repair this term.   F: Electrical repair is being taught this term.   M: They are teaching advanced technology this term.   F: Advanced technology is being taught this term.   M: They are teaching communication this term.   F: Communication is being taught this term.   M: They are teaching foreign languages this term.   F: Foreign languages are being taught this term.   M: They are teaching computers this term.   F: Computers are being taught this term.   M: They are teaching engineering and accounting this term.   F: Engineering and accounting are being taught this term.   下面我们把刚才那组练习里的被动语态句子重复练习一下. 请你听一遍跟着 老师重复一遍.   M: Electrical repair is being taught this term.   F: Electrical repair is being taught this term.   M: Advanced technology is being taught this term.   F: Advanced technology is being taught this term.   M: Communication is being taught this term.   F: Communication is being taught this term.   M: Foreign languages are being taught this term.   F: Foreign languages are being taught this term.   M: Computers are being taught this term.   F: Computers are being taught this term.   M: Engineering and accounting are being taught this term.   F: Engineering and accounting are being taught this term.   刚才我们作的几组练习都是说到成人学校的课程, 现在我们要作一组练习谈 谈成人学校的贡献,比方成人学校可以满足人们多受教育的需求,可以使人们 事业更发达, 生活更充实; 要是人们学会自己修东西就可以避免出高价请别 人来修等等. 练习的作法是老师说出一个将来式被动语态句子, 请你把句子 里的 will be 改成 is going to be 或是 are going to be 说出来, 每作完一句就请 你听老师念正确答案.   M: Older people"s careers will be enhanced.   F: Older people"s careers are going to be enhanced.   M: Their lives will be enriched.   F: Their lives are going to be enriched.   M: High costs for repairs will be avoided.   F: High costs for repairs are going to be avoided.   M: The demand for more education will be met.   F: The demand for more education is going to be met.   三.听短文回答问题   在下一课里我们还有机会练习被动语态. 现在我们来听今天这一课的文章.这 篇文章谈到美国成人教育计划的课程和功用. 文章里的词汇都是我们刚才练 习过的.   现在请你注意听.   Millions of people are enrolled in evening adult education programs across America.   Community colleges have become popular and their enrollments have increased rapidly.   Large universities are offering more courses in the evenings for adult students. In this way, the demand for more education is being met.   One reason for this is that many older people are changing their professions. They are looking for different careers. Another reason is that repair costs have increased.   Adults are taking courses like plumbing and electrical repair. This way they hope that the high costs for repairs can be avoided.   Advanced technology is the most important reason for the rise in adult education.   Engineers, teachers and businessmen are taking adult education classes. They have found that more education is needed to do their jobs well. Various courses are offered.   Computers and business courses are taken by many adult students. Foreign languages, accounting and communication courses are also popular. Some students attend classes to earn degrees. Others take courses for the knowledge and skills that they can receive.   The lives of many people have been enriched because of adult education.   等一会儿我再请英文老师把文章念一遍, 现在请你先听今天测验的三个问题.   第一个问题是:   M: Where can one take adult education courses?   第二个问题是:   M: Why has adult education become popular?   第三个问题是:   M: What are some of the courses offered in adult education programs?   好, 现在我们再把文章听一遍. 这次老师念得比较慢, 请你特别注意上面三个 问题的答案.   Millions of people are enrolled in evening adult education programs across America.   Community colleges have become popular and their enrollments have increased rapidly.   Large universities are offering more courses in the evenings for adult students. In this way, the demand for more education is being met.   One reason for this is that many older people are changing their professions. They are looking for different careers. Another reason is that repair costs have increased.   Adults are taking courses like plumbing and electrical repair. This way they hope that the high costs for repairs can be avoided.   Advanced technology is the most important reason for the rise in adult education.   Engineers, teachers and businessmen are taking adult education classes. They have found that more education is needed to do their jobs well. Various courses are offered.   Computers and business courses are taken by many adult students. Foreign languages, accounting and communication courses are also popular. Some students attend classes to earn degrees. Others take courses for the knowledge and skills that they can receive.   The lives of many people have been enriched because of adult education.   现在请你回答下面三个问题. 每回答一句就请你听老师念正确答案.   第一个问题是:   M: Where can one take adult education courses?   F: One can take adult education courses in a community college or university.   第二个问题是:   M: Why has adult education become popular?   F: Changing professions, high costs for repairs and advanced technology are some of the reasons for the rise in adult education.   第三个问题是:   M: What are some of the courses offered in adult education programs?   F: Plumbing, electrical repair, foreign languages, accounting and communication are some of the courses offered in adult education programs.
2023-07-23 22:23:191

PaulBernard是谁

PaulBernardPaulBernard是一名演员,主要作品有《卡洛琳》。外文名:PaulBernard职业:演员代表作品:《卡洛琳》合作人物:RichardPottier主要作品
2023-07-23 22:23:161

燕麦是脱脂无糖的吗,金日禾野这个牌子的?

燕麦是脱脂无糖的,这个牌子是好的
2023-07-23 22:23:152

“辞职,退休,解雇”用英语怎么说

都对的
2023-07-23 22:23:118

美国为什么淘汰了航天飞机,而不继续?

际上每年只有7~8次,每次发射费用约4。4亿美元,年使用成本超过30亿美元。  航天飞机太重、太脆弱、太复杂  航天飞机列入“一类关键性”清单的部件就有750个,这些部件一出问题就有灾难后果,保养4架航天飞机需要30000人。直至2005年3月22日,NASA还发现“发现号”尾部减速板驱动装置存在齿轮装反的潜在安全隐患,却20余年未被发现航天飞机虽然技术先进,但是,技术难度极大,风险也就大,而且安全性能不是太高。所以就给淘汰了。DWa超级大本营军事
2023-07-23 22:23:093