ansys 预应力:学案：情态动词难题精选

1. The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.

A. shan’t              B. can’t              C. needn’t               D. mustn’t

2. -----Where is my dictionary? I remember I put it here yesterday.  -----You ____ it in the wrong place.

A. must put     B. should have put     C. might put      D. might have put

3. The teacher _____ have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose.

A. should      B. can               C. would        D. must

4. ----What does the sign over there read?  

----“No person _____ smoke or carry a lighted cigarette, cigar or pipe in this area.

A. will        B. may               C. shall         D. must

5. -----Turn off the TV, Jack. ______ your homework now? -----Mum, just ten more minutes, please.

A.       Should you be doing  B. Shouldn’t you be doing  C. Couldn’t you be doing  D. Will you be doing

6. Naturally, after I told her what to do, my daughter ______ go and do the opposite!

A. may       B. can      C. must      D. should

7. -----Mum, I’ve been studying English since 8 o’clock. ______ I go out and play with Tom for a while?

  -----No, I’m afraid not. Besides, it’s raining outside now.

A. Can’t      B. Wouldn’t    C. May not      D. Won’t

8. I was on the highway when this car went past followed by a police car. They _____ at least 150 kilometers an hour.

A. should have been doing  B. must have been doing  C. could have done  D. would have done

9. He paid for a seat, when he ____ have entered free.

A. could       B. would       C. must      D. need

10. -----What’s the name?  -----Khulaifi. _____ I spent that for you?

A. Shall       B. Would       C. Can       D. Might

11. -----Must he come to sign this paper himself?  -----Yes, he _____ .

A. need        B. must        C. may       D. will

12. If it were not for the fact that she _____ sing, I would invite her to the party.

A. couldn’t     B. shouldn’t     C. can’t      D. might not

13. Being examined twice a year is the rule that every driver _____ obey in this city.

A. shall        B. can          C. ought to   D. need

14. ----You ought to have given them some advice.  ----______, but who cared what I said?

A. So ought you    B. So I do    C. So did you    D. So I should have

15. _______, such a highly intelligent person _____ to solve so simple a problem.

A. Surprised; should fail           B. surprisingly; should have failed

C. Surprisingly; would fail         D. surprisingly; will have failed

16. If it were not for the fact that you ______ ill, I would ask you to leave for Shanghai tomorrow.

A. are        B. were        C. would be       D. had been

17. ----Can I use your cellphone for a while? ----No, you _____. I’m using it now.

A. needn’t        B. might not          C. mustn’t   D. shan’t

18. ----_____ he come to help you with your program? -----I’d rather he ______.

A. May; wouldn’t     B. Shall; didn’t    C. Will; doesn’t    D. May; didn’t

19. We _____ keep a cool head on over-heating development, for it ____ have negative influence upon national economy.

A. should; must        B. must; should          C. might; could   D. must; may

20. If I ever decided to quit, then nothing my parents or my coaches _____ say ______ change my mind. It’s my life, not theirs.

A. could; would     B. could; should    C. would; must    D. would; should

（A4纸打印时为达到刚好一页，可将页边距设为2.2cm,装订线0cm,字体设为Arial Narrow，字号为五号）

Keys: BDDCB CABAA BCADB ADBDA