情态动词(modal

1、Revision of Module 3Welcome to my class!FranklinWenzhou No.14 High School1 1） 情态动词情态动词 除除oughtought 和和havehave 外，后面外，后面只能接不带只能接不带toto 的不定式。的不定式。 2 2） 情态动词没有人称，数的变化，即情情态动词没有人称，数的变化，即情态动词第三人称单数不加态动词第三人称单数不加-s/ed/ing-s/ed/ing。 3 3） 情态动词没有非谓语形式，即没有不情态动词没有非谓语形式，即没有不定式，分词，动名词等形式。定式，分词，动名词等形式。 情态动词的语法特征情态动

2、词的语法特征情态动词主要有：情态动词主要有：1）can/ could：否定或疑问的推测：不可能：否定或疑问的推测：不可能/可可能吗能吗 2)may/might：可能性的推测：可能：可能性的推测：可能3)must ：肯定性的推测：想必：肯定性的推测：想必 4)should/ought ：应该：应该5)need(需要需要) /dare(敢敢)主要用在否定和疑问句主要用在否定和疑问句中中6）shall/will/would在一定场合下也可以用作在一定场合下也可以用作情态动词情态动词 1.can表示能力表示能力 I can speak English while he cant . 2.表示允许表示允

3、许 Can I sit here? 3.表示可能性表示可能性 This cant be true. What can it mean? They cant have been to Africa.may1）表示允许，征求别人意见）表示允许，征求别人意见-May I come in?-Yes,please.2)表示判断和猜测表示判断和猜测He may come,but I am not sure.This may be true or may not be true.might语气婉转，或不是很肯定的猜测语气婉转，或不是很肯定的猜测Dont throw the empty bottle out

4、of the window.You might hurt someone.1）must表示表示“必须必须”You must finish your homework at once.You mustnt play with fire.You mustnt play football on the road.2)表示猜测，语气很肯定表示猜测，语气很肯定She must be hungry.He looked worried.He must have lost his way.Its so wet on the ground that it must have rained heavily las

5、t night,_?didnt itCan, could & be able to 的区别的区别Well be able to finish the work soon.1.can只用于现在式和过去式只用于现在式和过去式(could)。be able to可可以用于各种时态。以用于各种时态。 2.Can的主语是人或物的主语是人或物,be able to的主语是人的主语是人 She can/be able to sing the song in English.3.表示特定的某一过去能力或表示成功地做了某事时，表示特定的某一过去能力或表示成功地做了某事时，只能用只能用was/were a

6、ble to， 不能用不能用could。 Although the soldier was badly wounded, he was able to tell what had happened.I havent been able to see the film.The computer can make you feel comfortable.She ran fast but she couldnt/ wasnt able to catch the bus. 表示对表示对1、过去某种情况进行推测、过去某种情况进行推测2、对已发生的动作或存在的状态进行推测、对已发生的动作或存在的状态进行

7、推测 Linda didnt catch the train. She could have caught it. Dont worry.1. Peter _ come with us tonight, but he isnt very sure. A. must B. can C. may D. willC2. - Could I call you by your first name? - Yes, you_. A. will B. could C. can D. mightC3. Sorry, I m late. I _ have turned off the alarm clock a

8、nd gone back to sleep again this morning. A. must B. should C. can D. willAwill & would 常表示promise意愿，意志, agreement同意, past habit, custom过去的习惯, request要求判断下列句子中的can, could是属于哪种情况。We will come here at ten.agreement, promiseHe would sleep very late .past habit, customWould you like to have dinner w

9、ith me together?requestwill 和和 wouldIf you will help me with my English, I will be very happy. I promised that I would do my best.1.will和和would表示意愿、意志，可用于各种人称表示意愿、意志，可用于各种人称Will you tell him the news as soon as he comes back?Would you please speak again more slowly？2.在疑问句中在疑问句中,will用于第二人称用于第二人称,表示请求

10、或征求表示请求或征求意见意见,would则语气更委婉则语气更委婉-Would you change this basket for another ? It _ hold water. - OK. Im really sorry.A. wont B. cant C. didnt D. doesntAshould:prediction预测(应该、很可能), advice建议，劝告，Shall & shouldNothing shall stop me doing it.You shall fail if you dont work harder.决心、意愿、意志警告，命令，威胁shall

11、 ：agreement同意, promise允诺 或或（常用于第二第三人称（常用于第二第三人称 ） 在疑问句中在疑问句中, 用来表示请求或征求意见。用来表示请求或征求意见。（常用于一、三人称）（常用于一、三人称）Shall I open the window for you？shall：（征求意见）You should/ought to have told her the truth earlier. She shouldnt have left without saying a word.should/ought to have done表示责备或表示责备或批评批评,意为意为“本应该本应该但

12、但”;ought to的语气更强烈的语气更强烈,用于否定则表示用于否定则表示“本不该本不该但但”情态动词的否定式 cant:不能；不可能不能；不可能 may not:可能不可能不 mustnt:不准；不许；禁止不准；不许；禁止 neednt:不必不必 darent:不敢不敢 wont:不愿意，就是不不愿意，就是不 shant:决不决不 shouldnt:不该不该1.-Excuse me, but I want to use your computer to type a report.-You _ have my computer if you dont take care of it.A.

13、shant B. might not C. neednt D. shouldntA2. -When can I come for the photos ? I need them tomorrow afternoon. -They _be ready by 12 : 00 . A. can B. should C. might D. needB3. With so much work on hand, you _to see the game last night. A. mustnt go B. could have goneC. shouldnt go D. shouldnt have g

14、oneD1.-Is John coming by train? -He should, but he _ not. He likes driving his car. (2002高考题）高考题） A. must B. can C. need D. may2.It has been announced that candidates(候选人候选人) _ remain in their seats until all the papers have been collected. (2002上海上海高考题）高考题） A. can B.will C. may D. shall3.-I heard t

15、hey went skiing in the mountains last winter. (2002北京北京高考题）高考题） -It _ true because there was little snow there. A. may not be B. wont be C. couldnt be D. mustnt beD D C 4. I thought you _like something to read, so I have brought you some books. A. may B. might C. would D. must B 5. A computer _ thin

16、k for itself; it must be told what to do. A. cant B. couldnt C. may not D. might notA 6. They will _ run this machine on theirown in three months.A. can B. could C. may D. be able to7. That big cinema _ seat 2,000 people.A. can B. should C. ought to D. is able toD A 8 Could I borrow your dictionary?

17、 Yes, of course you _. A. might B. will C. can D. should9. Might I watch TV after supper? Yes, you _. A. may B. must C. might D. canC A 10. You _ return the book now. You can keep it till next week if you like. A. cant B. mustnt C. neednt D. may not11. Johnny, you _ play with the knife, you _ hurt y

18、ourself. A. wont ; cant B. mustnt ; may C. shouldnt ; must D. cant ; shouldntC B 在复合句中，主语从句、宾语从句、表语从句和在复合句中，主语从句、宾语从句、表语从句和同位语从句在用法上相当于同位语从句在用法上相当于名词名词，故统称为名词，故统称为名词性从句。性从句。1.When we will start is not clear.2.Mrs Black wont believe that her son has become a thief.3. My idea is that we should do it r

19、ight now.4.I had no idea that you were her friend.主语从句主语从句宾语从句宾语从句表语从句表语从句同位语从句同位语从句名词性从句由连接词、连接代词和连接副词引导，名词性从句由连接词、连接代词和连接副词引导，为为陈述句语序陈述句语序。连词。连词+主语主语+谓语谓语 1. I think that hell be all right in a few days.2. I wonder if you can do me a favor.3. The questions is whether we should ask them for help.连接

20、词连接词that（陈述句）（陈述句）/whether（一般疑问句）（一般疑问句）在从句中在从句中不做成分不做成分,。连接代词连接代词在从句中在从句中作主语、表语、定语或宾语作主语、表语、定语或宾语。连接副词连接副词在从句中作在从句中作状语状语.when(time)where(place)/why(reason/purpose)/how(manner)You cant imagine _ when they received these nice Christmas presents. A. how excited they were B. how they were excited C. ho

21、w were they excited D. they were how excitedA连词判断方式 1、主句信息词：、主句信息词： 肯定意义肯定意义陈述句陈述句that 否定或疑问意义否定或疑问意义疑问句疑问句 疑问句结构完整疑问句结构完整一般疑问句一般疑问句whether 疑问句结构不完整疑问句结构不完整特殊疑问句特殊疑问句疑疑问词问词 疑问词：缺什么补什么疑问词：缺什么补什么作业作业:填上适当的连接词填上适当的连接词1.I dont know_ he will be back. 2.We heard the news _ our team had won. 3.There arose the question _ we could palnt the trees well. 4. Im sure _ the plan (should) be delayed will be discussed tomorrow. 5. The reason for his absence was _ Mary was badly ill.6.He left word to my secretary _