八年级英语语法情态动词知识点专题复习及练习

对现在或将来的推测用“情态动词+动词原形”。

【考例2】

--What about playing football this afternoon, Sam?

--I would rather _______ at home than football. It's too hot outside.

A. stay; playing

B. stay; play

C. to stay; to play

D. to stay; playing

总结：can/ may/ must/ should用法概览

情态动词许可猜测其他

表能力，“能够，会”

can可以/

be able to

can’t不可以不可能表示不能做，能力的缺失

表祝愿

may可以可能

May you be happy!

表义务，必须

must/一定

have to

mustn’t不可以，禁止/

很大的可能性，

should

表义务、职责，“应该，应当”

“按道理说应该”

三、课堂练习

一模考点整理--情态动词

1. You _______ to tell him the news. It will make him sad. ( 宝山)

A. needn’t

B. shouldn’t

C. couldn’t

D. don’t need

2. –Must I do all the housework, Mum? (虹口)

--No, you _____. Just clean your bedroom.

A. mustn’t

B. shouldn’t

C. needn’t

D. can’t

3. Jack, you ______ ask a woman her age in England. It’s impolite. (金山)

A. needn’t

B. don’t have to

C. ought to

D. shouldn’t

4. We ______ hurry all the way to the airport, the flight was cancelled because of the foggy weather. (闵

行)

A. mustn’t

B. couldn’t

C. needn’t

D. shouldn’t

5. To our surprise, we enjoy a half month holiday hi January in 2012. (浦东)

A. should

B. can

C. must

D. need

6. Can you speak louder, please? I hear you clearly. (松江)

A. mustn't

B. shouldn't

C. needn't

D. can't

7. All the parcels will be delivered to your home in two days. You ______ worry too much about it. (徐汇)

A. mustn't

B. needn't

C. can't

D. shouldn't

8. It doesn’t look like rain, so you _______bring your umbrella with you. (长宁)

A. mustn’t

B. can’t

C. needn’t

D. may not

9. Children be very careful when they go across the busy street. (崇明)

A. shouldn't

B. needn't

C. must

D. may

10. I looked everywhere for the book, but I ______find it(奉贤)

A. mustn't

B. needn't

C. may not

D. couldn't

11. Believe it or not, it's said that people born in the year of the rat _______ become excellent

writers. (黄浦)

A. should

B. can

C. must

D. need

12. — Must I finish my homework before I go to play basketball? (嘉定)

—Yes, you .

A. needn't

B. can't

C. must

D. may

13. You tell him the good news because he has already known it. (静安)

A. needn’t

B. may not

C. mustn’t

D. can’t

14. —Shall I tell Mike about it? (卢湾)

—No, you . He's already known it.

A. needn't

B. can't

C. must

D. may

15. — Can I take these magazines home? (普陀)

— Yes, you ________ , but please return them in two days.

A. must

B. may

C. should

D. need