情态动词的用法及练习

1、 情态动词的用法及练习一、情态动词的特点:1.没有人称和数的变化。2. 有些情态动词有过去式的变化:e.g. will would , can could , may might , dare dared二、情态动词的否定式: 情态动词+ not +动词原形can not: cant , must not: mustnt , need not : neednt三、情态动词的用法及相互区别, 是考试的内容之一。1. can , be able to be able to 表示经过努力后, 能够做到; be able to 有多种形式的变化。can 1). 表示体力或脑力方面的能力; 2). 表示

2、允许、可能性。could 是can的过去式, 表示过去有能力及过去存在的可能性 ; 用于疑问句表示委婉地提出问题。1) The fire spread through the hotel very quickly but everyone _ get out. (NMET 97 )A. had toB. wouldC. couldD. was able to 2) -Will you stay for lunch? -Sorry, _. My brother is coming to see me. (NMET99)A. I mustntB. I cantC. I needntD. I won

3、t 2.may 表示询问或说明一件事可不可做; 表示某事有可能发生。might是may的过去式; 用在疑问中比may委婉、客气。1) -May I take this book out of the reading-room?-No, you mustnt. ( Yes, you may.)2) -Might I make a suggestion? -Yes, you may.3. must 1). 表示必须要做的事: 必须 2) 表示很有把握的推断: 一定, 准是。have (has)to : have (has)got to 必须, 不得不。过去式: had to3) -Must I g

4、et to the station before three oclock?-Yes, you must. ( No, you neednt. )4) Im afraid you will have to wait a while.5) She must be in the classroom now.6) Mary _ be in Paris, I saw her in town only a few minutes ago. (NMET 94)A. mustnt B. shouldnt C. cant D. may not4. shall 1) 在疑问句中, 用于第一、三人称表示说话人征求

5、对方的意见或向对方请求。2) 用于二、三人称,表示说话人给对方的 命令、警告、允诺等概念。1) - Shall I place an order with you now? -No, you neednt. -Shall he turn down the radio a bit? -Yes, please.(No, please dont.)2) You shall have the English book as soon as I finish it.3) Everything that he owns shall be taken away from him.4) Your brothe

6、r seldom comes to see you, _?A. does heB. doesnt heC. will heD. isnt he5) Its a fine day. Lets go fishing, _?A. wont we B. will we C. dont we D. shall we5. should 应该 ; 应当1) You should listen to the doctors advice.2) You should study the article carefully.6. will, would1) 在疑问句中用于第二人称,表示说话人向对方提出请求或询问。

7、用would语气更加婉转。2) will 表示现在的习惯性动作或状态; would 表示过去的习惯性动作或状态。3) will 用于各种人称, 表示 意志、意愿、决心、允诺; would 表示过去时间的 意志、意愿、.。(1) Dont smoke in the meeting room, _ you? A. do you B.will youC. can youD. could you-Will you come with me? -Yes, I will.(I am sorry , I cant.)(2) -Would you tell us something about yoursel

8、f? -Yes, I will.(3) - Its my birthday tomorrow. Dont forget to come to my party.- _ .A. I dont B. I wont C. I cant D. I havent7. ought to 应该; 应当1) You oughtnt to smoke too much.2) She _ for what she has done.A. ought to praiseB. ought be praisedC. ought to have praisedD. ought to be praised8. dare 1

9、. dare to come 2. dare come1) He dare not tell the truth. 2) He doesnt dare to come out at night.3) I dont know whether he _ try.A. dareB. needsC. wantsD. is allowed9. need 1). 作为情态动词:必须 2). 作为实义动词: 需要A.主语是人 need( to do something ; to be done by somebody) B. 主语是事物 need ( doing; to be done) 1) -Do th

10、ey need to take any books with them?-No, they dont need to.2) -Need we buy any new equipment? -No, we neednt.3) This farm tool needs repairing. This farm tool needs to be repaired. 4) -Shall I tell John about it ?- No, you _ . Ive told him already.A. neednt B. wouldnt C. mustnt D. shouldnt5) Its a f

11、ine day. You _ take a raincoat with you. A. cant B. mustnt C. neednt D. may not情态动词 + 不定式的完成式是高考的考试要点1. can(could) + have + 过去分词2. cant (couldnt) + have + 过去分词 3. must + have + 过去分词 4. may (might) + have + 过去分词 5. neednt + have + 过去分词6. should (ought to) + have + 过去分词7. shouldnt (oughtnt to) + have

12、+ 过去分词1). Can (Could) they have completed their work so soon? 2) She cant (couldnt) have make a mistake.3) Since the ditch is full of water , it _ (rain) last night.4) He said that she might have misunderstood him.全国各省市高考试卷中的情态动词试题1 A(全国卷I）24. Theres no light on - they_ be at home.A. cantB. mustntC.

13、 neednt D. shouldnt2 (全国卷2)10. We hope that as many people as-possible _ join us for the picnic tomorrow.A. need B. must C. should D. can3 (上海春)26. You know he is not going to let us leave early if we _ get the work done.A. cant B. may notC. shouldnt D. mustnt4 (天津卷)11. We have proved great adventur

14、ers, but we have done the greatest march ever made in the past ten years.A. neednt B. may notC. shouldnt D. mustnt5 (四川卷)32. -Is Jack on duty today?-It _ be him. Its his turn tomorrow.A. mustnt B. wont C. cant D. neednt6 (江西卷)24The weather turned out to be fine yesterdayI _ the trouble to carry my u

15、mbrella with meAshould have taken Bcould have taken Cneednt have takenD. mustnt have taken7 (陕西卷)19.As you worked late yesterday, you _ have come this morning.A. maynt B. cant C. mustnt D. neednt 8 (江苏卷)21. - I think Ill give Bob a ring.- You _. You havent been in touch with him for ages. A. will B.

16、 may C. have to D. should9 (广东卷)22. - Must he come to sign this paper himself?- Yes, he_.A. needB. mustC. mayD. will10 (山东卷)30. -May I smoke here ?-If you _, choose a seat in the smoking section.A. should B. could C. may D. must11.He _ have completed his work; otherwise, he wouldnt be enjoying himse

17、lf by the seaside. A. should B. must C. wouldnt D. cant12. I _ have been more than six years old when the accident happened. A. shouldnt B. couldnt C. mustnt D. neednt 13. This cake is very sweet. You _ a lot of sugar in it.A. should put B. could have put C. might put D. must have put 14. He paid for a s