内容正文:
七下 Unit 1 (情态动词的用法)
一、含义:情态动词是动词的一种,它表示讲话人的态度、请求、许可、愿望、可能等。本身具有一定的意义,但不能独立作谓语,没有人称和数的变化,且后面必须跟动词原形。
二、分类:can/could(能够,可以),may/might(可能,可以), must(必须,一定), need(必要), have to(不得不) 等。
三、情态动词的用法
1.情态动词+动词原形
2. 情态动词的句式变化(以can为例)
(1)肯定句:主语+can+动词原形+其他
I can fly.
(2)否定句:主语+cannot/can’t+动词原形+其他
I can’t fly.
(3)一般疑问句:Can+主语+动词原形+其他?
肯定回答:Yes, 主语+can.
否定回答:No, 主语+can’t.
—Can you play the violin?
—Yes, I can.
—No, I can’t.
(4)特殊疑问句: 疑问词+can+主语+动词原形+其他?
What can you do in your home?
四、情态动词三大考点
1.情态动词+动词原形
2.Must提问,否定回答用needn't/don’t have to(不用mustn't是因为他表示禁止做某事)
3.can't表示最否定
—Listen, there is somebody knocking on the door? Is it Ms Gao?
—No, it can’t be Ms Gao. I saw her running on the playground.
巩固练习
1. — ______ I use your dictionary?
—Sure, here you are.
A. Must B. May C. Need D. Should
2. He________ sing, but he can dance.
A. isn’t B. doesn’t C. don’t D. can’t
3. — Can Zhu Zhiwen _________ an English song?
— No. I don't think he_________.
A. sing; can B.to sing; can C. sings; can't D. singing; can't
4. —_____you singing an English song to me?
—I think I can do it.
A. May B. Can C. Mustn’t D. Must
5. We ______ have a concert tomorrow, but I’m not sure.
A. can B.may C. must D. can’t
6. That man over the tree_____be his father, because I saw him went to the cinema just now.
A. can B. mustn't C. may D. can't
7. —I wonder if this book is Alice’s.
—It ______ be hers. There is Mike on the book.
A. mustn’t B. may not C. can’t D. shouldn’t
8. —______ I invite my friends to the party on Saturday?
—Of course you can.
A. Have to B. Must C. Can D. Can't
9. —Must I do my homework now?
—No, you ______. You can do it tomorrow.
A. haven’t to B. don't have to
C. haven’t to D. don't have to
10. The man in my room ______ be my brother. He is still in Japan.
A. couldn't B. mustn't C. needn't D. can't
11. —May I park on the side of the road ?
—Sorry, you ______. Look at the sign "No parking "!
A. may not B. mustn't C. can D. needn't
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