情态动词专练及解析
1. We hope that as many people as possible _____join us for the picnic tomorrow.
A. need B. must C. should D. can
2. Some aspects of a pilot’s job _____ be boring, and pilots often _____ work at inconvenient hours.
A. can; have to B. may; can
C. have to; may D. ought to; must
3. A left luggage office is a place where bags _____ be left for a short time, especially at a railway station.
A. should B. can C. must D. will
4. The fire spread through the hotel very quickly but
everyone _____ get out.
A. had to B. would
C. could D. was able to
5. He paid for a seat, when he _____ have entered free.
A. could B. would C. must D. need
6. We _____ have proved great adventures, but we have done the greatest march ever made in the past ten years.
A. needn’t B. may not
C. shouldn’t D. mustn’t
7. Johnny, you _____ play with the knife, you _____ hurt yourself.
A. won’t; can’t B. mustn’t; may
C. shouldn’t; must D. can’t; shouldn’t
8.— May I smoke here?
— If you _____, choose a seat in the smoking section.
A. should B. could C. may D. must
9. 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
10. My sister met him at the Grand Theatre yesterday afternoon, so he _____ your lecture.
A. couldn’t have attended
B. needn’t have attended
C. mustn’t have attended
D. shouldn’t have attended
11. I was on the highway when this car went past followed by a police car. They _____ at least 150 km an hour.
A. should have been doing
B. must have been doing
C. could have done D. would have done
12.— Shall I tell John about it?
— No, you _____ . I’ve told him already.
A. needn’t B. wouldn’t
C. mustn’t D. shouldn’t
13. It has been announced that candidates _____ in their seats until all the papers have been collected.
A. can B. will C. may D. shall
14. — I think I’ll give Bob a ring.
— You _____ . You haven’t been in touch with him for ages.
A. will B. may C. have to D. should
15. You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.
A. might B. need C. should D. would
16. I told Sally how to get here, but perhaps I _____ for her.
A. had to write it out
B. must have written it out
C. should have written it out
D. ought to write out
17. I was really anxious about you. You _____ home
without a word.
A. mustn’t leave B. shouldn’t have left
C. couldn’t have left D. needn’t leave
18.— Write to me when you get home.
— _____ .
A. I must B. I should
C. I will D. I can
19. When he was there, he _____ go to that coffee shop at the corner after work every day.
A. would B. should C. had better D. might
20. Mother _____ us stories when we were young.
A. was used to tell B. is used to telling
C. used to tell D. used to telling
21.—Lucy doesn’t mind lending you her dictionary.
— She _____ . I’ve already borrowed one.
A. can’t B. mustn’t
C. needn’t D. shouldn’t
22. The weather turned out to be fine yesterday. I _____ the trouble to carry my umbrella with me.
A. should have taken B. could have taken
C. needn’t have taken D. mustn’t have taken
23. I wonder how he _____ that to the teacher.
A. dare to say B. dare say
C. not dare say D. dared say
24. It’s freezing outside. You _____ put on your overcoat.
A. had better to B. had better
C. would rather D. would better to
25.— Shall we go skating or stay at home?
— Which _____ do yourself?
A. do you rather B. would you rather
C. will you rather D. should you rather
答案与解析：
1. D. 此处can表示 “能力”。
2. A. 此处can表示推测“可能”的意思;have to表示“不得不”，强调客观情况。
3. B.此处can表示允许，许可。
4. D. 在表示能力时，can(could)和be able to在很多情况下能够互换，但在下列情况下只能用be able to: ①位于助动词后;②位于情态动词后;③表示成功地做了某事。本题即属于第三种情况。
5. A. could have done用于肯定句中表示本来能够做成某事但结果没能做成，含有遗憾的意味，侧重有能力而没有能做成。
6. B. may not表示“可能不”，表示不太确定的推测。
7. B. mustn’t表示“禁止”，may表示不太确定的推测。
8. D. 这里must表示必要性，意为“必须，一定要”。
9. D. must have done表示对过去发生的事情的肯定推测，意为“想必，准是，一定是”
10. A. can/could not have done表示对过去的否定推测“不可能做过……”。
11. B. must have been doing表示对过去进行时态或者过去完成进行时态的肯定推测。
12. A. shall用于主语为第一、三人称的疑问句中表示建议、征求对方意见时，其回答一般用“Yes, you must.”或“ No, you needn’t.”。
13. D.在主语为第二、三人称的肯定句中，shall表示决心、许诺、命令等。
14. D. should指“应该”，表示命令、劝告或建议等。
15. C. 在某些名词性从句中，should可以表示惊异、意外等情况，意思是“竟然”。
16. C. should /ought to have done“表示本该做某事却未做”，其否定形式shouldn’t /ought not to have done则表示“本不该做某事却做了”。
17. B. 本句表示本不该做某事却做了。
18. C. will与第一人称连用表示意愿、意志。其它选项则不能表示意愿。
19. A. would表示过去习惯性的动作。
20. C. used to表示“过去的习惯动作或状态(现在 已不这样)”，其后接动词原形。
21. C. 选项A表示“不能、不许”;B表示“不行、禁止”;C表示“不必、不需要”;D为“不应该”。
22. C. needn’t have done表示过去本不必做某事而实际已做了某事，强调“不必要”，其肯定式need have done则表示过去本需要做某事而实际上未做。
23. D. dare作实义动词时其后的不定式可带to，也可以不带to，此句中的实义动词dare的时态应为一般过去时态。
24. B. had better表示“最好……”，后接动词原形，其否定式为“had better not”.
25. B. 能够表示“宁愿、宁可”意思的就只有B。
