1、情态动词练习 1. You _ all those clothes. We have a washing machine to do that sort of thing.A. neednt have washed B. shouldnt have washedC. must not have washed D. can not have washed2. John _ his father about his failure in the exam.A. dares not tell B. dares not tellingC. dare not tell D. dares not to t
2、ell3. Toms score on the test is the highest in the class; he _ last night.A. should study B. should have studiedC. must have studied D. must have to study4. This pen looks like mine, yet it isnt. Whose _ it be?A. must B. canC. may D. might5. Nobody knows how people first came to these islands. They
3、_ from South America on rafts.A. must have sailed B. can sailC. might have sailed D. should have sailed6. He must have finished his homework, _ he?A. mustnt B. didntC. neednt D. hasnt7. Walking alone in the deserted village, John was scared. He thought he _ Tom to go with him.A. might have asked B.
4、should askedC. must have asked D. should have asked8. As a soldier, you _ do as the head tells you.A. will B. shallC. may D. ought9. You should bear in mind that he is not as strong as he _.A. was used to be B. used to beC. was used to D. use to10. Since it is already midnight, we _.A. had better le
5、aving B. ought to have leftC. must have left D. might as well leave11. Mary _ my letter, otherwise she would have replied before now.A. should have received B. has receivedC. couldnt have received D. ought to have received12. In case I _, I would try again.A. will fail B. would missC. should fail D.
6、 shall miss13. What _ would happen if the director knew you felt that way?A. will you suppose B. you supposeC. do you suppose D. you would suppose14. You must be a writer, _?A. mustnt you B. are youC. must you D. arent you15. Two eyes _ see more than one.A. can B. mayC. will D. should16. Research fi
7、ndings show we spend about two hours dreaming every night, no matter what we _ during the day.A. should have done B. would have doneC. may have done D.must have done17. _ you continue in your efforts and achieve new and greater successes.A. Would B. WillC. May D. Should18. Has it been warned that al
8、l the children in this area _ stay at their homes until the Bird Flu has been controlled?A. can B. willC. may D. shall19. May I sit beside you, sir?No, you _. My girlfriend is coming soon.A. cant B. mustntC. neednt D. shouldnt20. Sir, you _ be sitting in this waiting room. It is for women and childr
9、en only.A. mustnt B. cantC. wont D. neednt21. When we got to the cinema, the film hasnt started yet, so we _.A. neednt hurry B. didnt need hurryC. neednt to hurry D. neednt have hurried22. The driver has drunk too much wine and dangerous things _ happen at any time.A. should B. canC. must D. need23.
10、 As he had heart attack, he was told that he _ continue the work.A. neednt B. may notC. mustnt D. cant24. This couple had been separated for twenty years; you _ imagine how happy they were when they met again.A. might B. willC. can D. must25. When crossing the street, you _ be too careful.A. neednt
11、B. couldC. must D. cant26. I know things are hard with you, but you _ try to get over the difficulties.A. can B. mayC. must D. ought27. I promised to get there before 5 oclock, but now the rain is pouring down. They _ for me impatiently.A. must be waiting B. ought to waitC. could be waiting D. may w
12、ait28. He _ the 9:20 train because he didnt leave home till 9:25.A. can reach B. could catchC. may not catch D. couldnt have caught29. To be on safe side, we _ fill up the tank now, because we _ run out of gas on the way.A. could; could B. should; mightC. should; would D. could; might30. _ show hims
13、elf in the front of the mirror?A. Dares the king B. Dare the kingC. Does the king dare D. Is the king dare31. See whos there! _ it be Mary?A. May B. MustC. Can D. Will32. I talked for a long time, and in the end I _ make him believe me.A. was able to B. couldC. may D. might33. There was a lot of fun
14、 at yesterdays party. You _ come, but why didnt you?A. must have B. shouldC. need have D. ought to have34. I often see lights in that empty house. Do you think I _ report it the police?A. should B. mayC. will D. can35. I came here by taxi and the driver charged me 50 Yuan.Really? You _ have come by
15、bus.A. neednt B. mustC. may D. should36. Do you still remember when we went to the great wall?I cant remember it well, but _ it have been sometimes last May?A. should B. mustC. could D. would37. Who is the girl standing over there?Well , if you _ know, her name is Mabel.A. may B. canC. must D. shall
16、38. John, look at the time. _ you play the piano at such a late hour?A. Must B. CanC. May D. Need39. Some aspects of a pilots job _ be boring, and pilots often _ work at inconvenient hours.A. can; have to B. may; canC. have to; may D. ought to; must答案及解析15 ACCBC 610 DDBBD 1115 CCCDA 1620 CCDAB2125 D
17、BCCD 2630 CADBB 3135 CADAD 3639 CCAA1. neednt have done 表示“本不需要做某事”。2. dare 当情态动词时，后面用 not 否定，加动词原形；当实意动词时，需要用助动词否定，后面用动词不定式，有时候动词不定式的 to也可省略。3. must have done 表示对过去的动作肯定的推测，翻译成“一定是”。4. can 用在表示疑问的推测中。5. must have done 表示对过去的动作肯定的推测，翻译成“一定是”，根据上下文不能这样说。6. must have done 的反义疑问句用 didnt 或者 have/has not
18、，取决于句中有没有表示过去时间的状语。7. should have done 表示“本来应该做某事”。8. shall 可以表示要求、命令等。9. used to 表示“过去常常”；当 used to 后面是 be 动词时，不可省略。10. might as well do 表示“还不如；不妨”。11. couldnt have done 表示对过去动作否定的推测。12. in case 后面用 should do 的虚拟语气形式。13. do you suppose 作为插入语用在疑问句中。14. must be 的反义疑问句用 be 动词。15. can 表示能力。16. may have
19、 done 表示对过去动作不太肯定的推测，翻译成“也许是”。17. may 用在句首是倒装句，表示祝愿。18. shall 可以表示要求、命令等。19. cant 表示“不能”。20. cant 表示“不能”，比 mustnt 的语气要轻。21. neednt have done 表示“本来不需要做某事”。22. can 表示一种客观可能性。23. mustnt 表示“禁止”，语气较重。24. can 表示能力。25. cant 和 too 搭配表示“如何都不过分 ”。26. must 表示“ 必须 ”。27. must be doing 表示对正在进行的动作肯定的推测。28. couldnt
20、 have done 表示对过去发生的动作否定的推测，翻译成“不可能”。29. should 表示“ 应该”；might 表示“ 有可能会”。 30. dare 当情态动词时，直接动词提前构成疑问句；当实意动词时，需要用助动词构成疑问句。31. can 表示疑问的推测。32. be able to 强调在特定情况下做成某事。33. ought to have done 表示“本来应该做某事”。34. should 表示“ 应该”。35. should have done 表示“本来应该做某事”。36. could 表示疑问的推测。37. must 表示“ 一定要 ”。38. must 可以表责怪的语气，翻译成“ 非要么？”39. have to 表示“不得不 ”。
