通过对情态动词的学习后，让我们赶快抓紧时间就情态动词的用法练习一下吧。
实战演练
1.—There were already five people in the car but they managed to take me as well.
—It_______a comfortable journey.
A. can't be B. mustn't have been
C. shouldn't be
D. couldn't have been
分析：此例主要考查对被猜测时间的把握。语境提示我们这是对过去时间的猜测，应用“情态动词+have done”形式。must表示猜测时通常不用于否定句，因此我们可以很容易地判定正确答案为Ｄ。
2. —Is John coming by train?
—He should, but he_______not. He likes driving his car.
A. must B. can C. need D. may
3. Peter_______come with us tonight, but he is not sure yet.
A. must B. may C. can D. will
4. Sorry I'm late. I_______have turned off the alarm clock and gone back to sleep again.
A. might B. need C. can D. will
5. My English-Chinese dictionary has disappeared. Who_______take it?
A. should B. must C. could D. would
6. Jack_______have arrived yet, otherwise he would have telephoned me.
A. must B. shouldn't
C. can't D. needn't
7. I didn't see her in the meeting room this morning. She_______have spoken at the meeting.
A. mustn't B. shouldn't
C. needn't D. couldn't
8. My sister met him at the Grand Theatre yesterday afternoon, so he
_______have attended your lecture.
A. couldn't B. needn't
C. mustn't D. shouldn't
9. It's nearly seven o'clock. Jack_______be here at any moment.
A. must B. need
C. should D. can
10. —When can I come for the photos?I need them tomorrow afternoon.
—They_______be ready by 12:00.
A. can B. should C. might D. need
分析：２—１０题主要考查对情态动词猜测语气强弱的把握。２—５题中的猜测并无客观必然的依据，应选择语气最弱的选项，答案分别为ＤＢAＣ。６—８题中的猜测都有客观依据，应选择语气最强的选项，答案分别为ＣＤＡ。９—１０题中的猜测有一定依据，但不充分，根据具体语境，答案应分为ＣＢ。情态动词should表示猜测时，常表示说话人的期望，有“照理应该、照理会”的意思。
实战演练
11. I'm not feeling well in the stomach, I_______so much fried chicken just now.
A. shouldn't eat
B. mustn't have eaten
C. mustn't eat
D. shouldn't have eaten
12. I was really anxious about you. You_______home without a word.
A. mustn't leave
B. shouldn't have left
C. needn't leave
D. couldn't have left
13. The young man has made so much noise that he
_______not have been allowed to attend the concert.
A. could B. must
C. would D. should
14. I told Sally how to get here, but perhaps I_______it out for her.
A. had to write
B. must have written
C. should have written
D. ought to write
15. We_______last night, but we went to the concert instead.
A. must have studied
B.might study
C. should have studied
D.would study
分析：１１—１５题并非考查情态动词对一件事情是否发生进行猜测，而是对已发生的事发表自己的看法，表达“本该”或“本不该”之意，答案分别为ＤＢＤＣＣ。
实战演练
1.—There were already five people in the car but they managed to take me as well.
—It_______a comfortable journey.
A. can't be B. mustn't have been
C. shouldn't be
D. couldn't have been
分析：此例主要考查对被猜测时间的把握。语境提示我们这是对过去时间的猜测，应用“情态动词+have done”形式。must表示猜测时通常不用于否定句，因此我们可以很容易地判定正确答案为Ｄ。
2. —Is John coming by train?
—He should, but he_______not. He likes driving his car.
A. must B. can C. need D. may
3. Peter_______come with us tonight, but he is not sure yet.
A. must B. may C. can D. will
4. Sorry I'm late. I_______have turned off the alarm clock and gone back to sleep again.
A. might B. need C. can D. will
5. My English-Chinese dictionary has disappeared. Who_______take it?
A. should B. must C. could D. would
6. Jack_______have arrived yet, otherwise he would have telephoned me.
A. must B. shouldn't
C. can't D. needn't
7. I didn't see her in the meeting room this morning. She_______have spoken at the meeting.
A. mustn't B. shouldn't
C. needn't D. couldn't
8. My sister met him at the Grand Theatre yesterday afternoon, so he
_______have attended your lecture.
A. couldn't B. needn't
C. mustn't D. shouldn't
9. It's nearly seven o'clock. Jack_______be here at any moment.
A. must B. need
C. should D. can
10. —When can I come for the photos?I need them tomorrow afternoon.
—They_______be ready by 12:00.
A. can B. should C. might D. need
分析：２—１０题主要考查对情态动词猜测语气强弱的把握。２—５题中的猜测并无客观必然的依据，应选择语气最弱的选项，答案分别为ＤＢAＣ。６—８题中的猜测都有客观依据，应选择语气最强的选项，答案分别为ＣＤＡ。９—１０题中的猜测有一定依据，但不充分，根据具体语境，答案应分为ＣＢ。情态动词should表示猜测时，常表示说话人的期望，有“照理应该、照理会”的意思。
实战演练
11. I'm not feeling well in the stomach, I_______so much fried chicken just now.
A. shouldn't eat
B. mustn't have eaten
C. mustn't eat
D. shouldn't have eaten
12. I was really anxious about you. You_______home without a word.
A. mustn't leave
B. shouldn't have left
C. needn't leave
D. couldn't have left
13. The young man has made so much noise that he
_______not have been allowed to attend the concert.
A. could B. must
C. would D. should
14. I told Sally how to get here, but perhaps I_______it out for her.
A. had to write
B. must have written
C. should have written
D. ought to write
15. We_______last night, but we went to the concert instead.
A. must have studied
B.might study
C. should have studied
D.would study
分析：１１—１５题并非考查情态动词对一件事情是否发生进行猜测，而是对已发生的事发表自己的看法，表达“本该”或“本不该”之意，答案分别为ＤＢＤＣＣ。
