情态动词专项练习

1. You _____ return the book now. You can keep it till next week if you like.

A. can’t B. mustn’t C. needn’t D. may not

2. The fire spread through the hotel very quickly but everyone _____ get out.

A. had to B. would C. could D. was able to

3. — Is John coming by train?

— He should, but he _____ not. He likes driving his car.

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

4. — It must be Mr. Li who did it. — No, it ______ be Mr. Li.

A. mustn’t B. wouldn’t C. can’t D. may

5. ---You needn’t do it right now, need you? ---Yes I am afraid I ______ .

A. need B. needn’t C. must D. mustn’t

6. You ______ finish reading the book as soon as possible.

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

7. I am busy now, _______ my brother do it for you ?

A. Will B. Shall C. Must D. May

8. — 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

9. — Will you stay for lunch? — Sorry, _____. My brother is coming to see me.

A. I mustn’t B. I can’t C. I needn’t D. I won’t

10. — 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

11. It’s still early, you _____.

A. mustn’t’t hurry B. wouldn’t’t hurry

C. may not hurry D. don’t have to hurry

12. A computer _____ think for itself, it must be told what to do.

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

13. Everyone _____ do his best for the modernizations of our country.

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

13. Please open the window, _____?

A. can’t you B. aren’t you C. do you D. will you

14. If you have something important to do, you ______ waste any time.

A. needn’t B. mustn’t C. may not D. won’t

15. A computer _____ think for itself, it must be told what to do.

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

16. — Could I borrow your dictionary? — Yes, of course you _____.

A. might B. will C. can D. should

17. Where is my pen? I _____ it.

A. might lose B. would have lost C. should have lost D. must have lost

18. The plant is dead. I _____ it more water.

A. will give B. would have given C. must give D. should have given

19. — I saw Mr. Sun at Tongyu Station this morning.

— You ______. He’s still on holiday in Hawaii.

A. couldn’t have B. mustn’t have C. shouldn’t D. needn’t

20. I didn’t’t see her in the meeting room this morning. She _____ at the meeting.

A. mustn’t’t have spoken B. shouldn’t’t have spoken

C. needn’t’t have spoken D. couldn’t’t have spoken

21. Jane have come to the party, but she A. could; could B. might; could C. should; could D. should; would

第二篇：情态动词总结

情态动词用法

1. 定义：情态动词是一种本身__有一定_的词义，表示说话人的情绪、态度或语气的_动_词但_不能_

单独作谓语，只能和其他动词原形构成谓语。

2. 常用的情态动词：

can ( could ), may ( might ) , must, ought to

半情态动词：

have to, need, be able to, used to, had better, dare

3. 情态动词的用法：

⑴ can (could) 表示说话人能, 可以, 同意, 准许, 以及客观条件许可, could 为 can 的过去式。can 和could 只能用于现在式和过去式两种时态，将来时态用be able to 来表示。

⑵ can / could 和 be able to 的区别

can/ could和 be able to 没有多大区别，可以互换

can/ could 侧重于表示“能力”，be able to 则强调“通过努力才能够…”

be able to…有人称和时态的变化

⑶ may (might) 用来提出问题（问可不可以）

用在陈述句中，表示“允许”“可以” You may do exactly as you like.

用来表示祝愿 May God bless you!

⑷ must “必须；应该；一定；准是”，表示说话人认为有必要做某事，命令、要求别人做某事以及对事物的推测。must 用来指一般现在时和一般将来时，过去式可用 have to 的过去式代替。

must 表示说话人的主观思想,

have to “不得不,必须”，表示客观需要、客观条件只能如此。

⑸ ought “应当；应该”，后跟带有 to 的动词不定式。

⑹ need是一个情态动词，“需要”，多用在否定式或疑问句中.need但 need 还可当作实义动词使用，这时 need 就象其他动词一样，有第三人称，单复数，后面加带 to 的动词等特性。

⑺ dare “敢”，多用在否定或疑问句中。

dare 除用作情态动词外，更多的是当实义动词使用，用法同实义动词一样，要考虑人称，单复数，时态等。

⑻ had better do sth.的用法相当于情态动词,表示“最好做）……”，后跟动词原形

4. 表示否定的情态动词的用法:

mustn’t needn’t can’t may not shouldn’t

5. 用情态用词表示推测

⑴ 在对错发生的事情进行描述的时候，一般有肯定，可能和推测的三种情况。

如果说话人对所描述的事实确信无疑，就可以用be或者任意的实义动词直接描述。

Jane is at home. He leaves at 9:00.

⑵ 如果说话人指的是可能发生的事情，就可以用 “may/ might/ could/…+动词原形”来表示。 Jane may be at home.

⑶ must + have + 过去分词，表示现在对过去事物的推测。

⑷ 情态动词+have+done” 表“本来…” 使用情形分析

should have done过去本来应该（而实际上并没有…)

should not have done 本不应该 …而实际上却已经…”

could have done它表示“过去本来能够…” 实际上没能做…。

need not have done它表示过去已做的事，事实上没有必要