情态动词 练习一

1、. 情态动词练习 重点领会例句1. may/might : 表示允许或征求对方答应，也可表示可能性 You may sit in the front row.“May I use your pen? “ Yes, of course. Dont go out alone. You might lose your way.May I take the book out of the room? No, youd better not. / please dont . “May I smoke here? “No, you mustnt.l maymight have done: 也许已经Now

2、he may have heard of something about the news.l May you succeed!2. can could be able to (1) 表才能He can/is able to stand on his head against the wall.Luckily, he was able to get out of the building before it fell down. (2) can “会；能；可能 could表是恳求时，语气更委婉。I can see him tonight.Could I use you telephone?Of

3、 course, you can. l Can/could have done: 表示对过去的事情的猜测；could have done 可表示某事可能发生，但却没有发生。You could have been more careful in the exam.l Cant/couldnt have done 表示对已发生的事情的推测，表“不可能 He cant have gone home. I saw him just now.l Walking alone at night can be dangerous. can表示有时候会 That boy cant be Tom. He has

4、just gone to America. Who can it be? 3. must: 强调主观上“应该 1I want to take more exercise, so I must walk to school every day.I couldnt get a taxi, so I had to walk home. 2 Must I do my homework today?No, you neednt/ No you dont have to.Yes, you must.Need I finish the work now? Yes, you must./No, you nee

5、dnt3 You mustnt play fire here. You mustnt smoke here.l Lets have something to eat. You must be starving.You must be a newcomer, arent you? l He must have gone swimming yesterday, didnt he?Now he must have finished his supper, hasnt he? 4 MODAL 情态动词用于问句中表示生气偏偏，非要 Why must you do everything as if you

6、 have to win? Must you make so much noise at midnight?5 if you must: 短语假如你一定要这样做的话'Could I have a word?' 'Oh dear, if you must.'. If you must have a cigarette, choose a seat in the first row of the smoking section. 6 if you must know 短假如你一定想要知道的话'Why don't you wear your joggi

7、ng shorts Mum?' 'Well, my legs are too skinny, if you must know.' You told him you'd been there that night.' 'If you must know, yes.' 4. need : 必须，必要We have plenty of time. We neednt hurry.He needs help badly now. He is in great need of helpYou need to go over the test pa

8、per again.l Neednt have done: 表示做了不必要做的事情。 You neednt have woken me up. I dont need to work today.5. ought to “应该，应当 语气稍重。Your father ought not to smoke too much.l Ought not to have done: The students ought to have done his homework more carefully.6. will /would : 表意愿，表恳求、询问常用于二人称，表习惯或反复发生的动作。I said

9、 I would do anything for him.Will you please give her this dictionary?Would you mind closing the door?Fish will die out of water./ When we worked in the same office, we would often have coffee together.The door wont open.I would rather do it myself.7. shall/ should: Shall 可用于第一人称、第三人称疑问句表示征求对方的意见。 W

10、hat shall we do next? / Shall he wait outside? Shall 用于二、三人称表示说话人的意愿，有命令、警告、威胁、强迫、许诺和允许等 Should表应当。 You should have my answer tomorrow. You should do it at once.l Should have done /ought to have done : 本来应该 也可表惊奇 I should have warned him. You should have made such progress.l Should :应当 表示推测和可能性 It s

11、hould be a good film. Its reviews were very good.With her talent and experience, she should do well for herself.Mum, Im on the bus. I should be at home in 10 minutes.The river bank is high. They should be safe there Do the following exercises:1. -Excuse me. Will you please tell me the way to the rai

12、lway station?-Oh, sorry, but I dont know. You _ go and ask that policeman.A. may B. must C. would D. should2.He you more help, but he was very busy. A. might give B. may have given C. may give D. might have given3. My sister met him at the Grand Theatre yesterday afternoon, so he _ your lecture. A.

13、couldnt have attended B. neednt have attended C. mustnt have attended D. shouldnt have attended4. -I think Ill give Bob a ring. -You _. You havent been in touch with him for ages. A. will B. may C. have to D. should5. We _ last night, but we went to the concert instead. A. must have studied B. might

14、 study C. should have studied D. would study6. - Must he come to sign this paper himself? - Yes, he _. A. need B. must C. may D. will 7. - May I smoke here? - If you , choose a seat in the smoking section. A. should B. could C. may D. must8.- The weather turned out to be fine yesterday. -I _ the tro

15、uble to carry my umbrella with me.A. should have taken B. couldnt have taken C. neednt have taken D. mustnt have taken9. - Will you answer the phone？ - It _ be your mother. A. can B. will C. may D. need10. He says that all the workers _ come to work on time. A. must B. could C. might D. would11. - _

16、 you ask your brother for help? - No. I can do it by myself. A. Will B. Must C. Did D. May 12. -Could I use your knife? - Of course you _.A. will B. can C. must D. might13. - Must I hand in the exercise book today? - No, you _.A. mustnt B. cant C. neednt D. shouldnt 14. Peter _ come with us tonight,

17、 but he isnt very sure yet. A. must B. may C. can D. will 15. Lets take a rest, _?A. will we B. shall we C. shant we D. wont we16. When I finish my oral English lessons, I _ English very well. A. can be able to B. will be able to C. should speak D. am speaking17. A computer _ think for itself; it mu

18、st be told what to do. A. cant B. couldnt C. may not D. might not18. You _ return the book now. You can keep it until next week if you like. A. cant B. mustnt C. neednt D. may not19. - Must I finish the book this morning? -No , you _ A. mustnt B. might not C. dont have to D. cant20. You _ take my ra

19、incoat. I _ do without it till tomorrow. A. may, can B. may, may C. can, may D. must, can21. _ you make so much noise while others are sleeping? A. Can B. Must C. Need D. Should22. Children _ play on the street with heavy traffic. A. cant B. Mustnt C. shant D. wont 23. -Mum , I climbed to get he Ted

20、dy Bear from the top of the shelf. - Oh! My Goodness! You _ yourself. You _ do that again. A. must have hurt, mustnt B. should have hurt, cant C. may have hurt, mustnt D. might have hurt, wont be able to 24. The train was ten minutes late, so I _ have run all the way from my house to the station. A.

21、 couldnt B. shouldnt C. neednt D. mustnt25. You _ worry about the old man. He _ well already. A. neednt , may get B. didnt have to, gets C. mustnt, got D. neednt, may have gotten26. - I dont mind telling you what I know. - You _. I am not asking you for it. A. mustnt B. may not C. cant D. neednt27.

22、There _ be any doubt about your passing the final exam since you have been working so hard. A. mustnt B. shant C. shouldnt D. neednt28. - Mum, there goes the bell. Who do you think it _? - Oh, it _ be Alice. I invited her to come for dinner.A. is, can be B. can be, must be C. may be, must be D. can

23、be , may be29. The manager didnt turn up at the meeting. Something unusual _ to him. A. must happen B. could have C. could have happened D. must have happened30. He must have forgotten to turn off the light last night, _ he? A. hasnt B. mustnt C. didnt D. hadnt 31. - The woman biologist stayed in Af

24、rica studying wild animals for 13 years before she returned. She _ a lot of difficulties. A. may go through B. might go through C. ought to have gone through D. must have gone through32. A left-luggage office is a place where bags _be left for a short time. A. should B. can C. must D. will33. The world Wide Web is sometimes jokingly called the World Wide Wait because it _ be very slow. A. should B. must C. will D. can34. - Is John coming by train? - He should. But he _ _not. He likes d