初一情态动词的讲解与练习.doc

情态动词
一、 定义：情态动词必须搭配动词原形一起构成谓语。情态动词没有人称和数的变化。
二、 考点：情态动词的用法和词义辨析，由情态动词引导的一般疑问句的回答。
三、种类：
情态动词
词义
否定形式
词义
can
能够，会
can’t
不能，不会
could
能够，会
couldn’t
不能，不会
may
可以，可能
／
／
must
必须
mustn’t
不允许，不能
shall
将，要
／
／
should
应该
shouldn’t
不应该
need
需要
needn’t
不必
would
将会，愿
wouldn’t
不会，不愿

四、用法及主要句型：
1. can ① 表示“能，会，可以”。
Can you play basketball?
② 表猜测，常用于否定句或疑问句，即can’t，表“一定不是”。
Li Hua can’t be in the classroom.
回答：Yes, ～ can. No, ～ can’t.
Can I help you? ——Yes, please. / No, thanks.
Can I borrow your book?----Yes, of course.
Can I write on the book? ------No, you can’t\mustn’t.
Could \Can you help me?---- Yes,of course.\Certainly.\ Sure.
Could \Can you tell me the way to the zoo?

2. could ①can 的过去式
I could swim when I was seven years old.
②could 开头的疑问句，语气比can委婉。
回答： Yes, ～ can. No, ～ can’t.（或根据语境）
Could I have a drink? Yes, you can.

3.may ① 表示推测，“可能，也许”，用于肯定句。 Eg: He may come tomorrow.
② 表示请求，“可以” Eg: May I borrow your book?
回答：—May I smoke in the room？
—Of course you may[can]．
—No, you may not[mustn't，can't]．（语气较生硬）
—You'd better not．
—Please don't．
4. should /shouldn’t 表示征求对方意见或劝告：
1) He should get up early.
2) She shouldn’t play computer game too much.
3)You should listen to your teacher.
回答：Yes, ～ should.\ No, ～ shouldn’t.

5.shall用于第一人称(I, we),
1) Where shall we have dinner?
2) Shall we go fishing? -----All right. \OK. \Good idea.
Shall I open the window? Shall we have lunch here?
肯定回答：All right. \OK. \Good idea.否定回答：Sorry, I can’t / I shall not.

6.must ①表示“必须，应该”。
②表示推测，常用在肯定句中，表“一定”。
Eg: There is someone knocking at the door. It must be Jim.
③否定句中，mustn’t 表示禁止，“不允许”。
回答：肯定回答用must,否定回答用needn’t =don’t have to不必要

7.need 需要
肯定句回答用must ,否定句回答用needn’t.
You needn’t come to school so early.

8.表示征求对方的意见，或建议。“你愿意…吗”
Would you like to go shopping with me?
回答 --Yes, I’d love to. /I’d like to. No, thank you.
Would you like something to eat\drink? ----Yes, I’d like…
练习
（　）1.  you like some milk ? A .  Would B.  Could C .  Can
（　）2. We pick the flower in the park. A.  can’t B.  don't C.  mustn’t
( ) 3.W e should more trees, and we shouldn’t cut any trees.
A.  plant B.  planting C.  plants
( ) 4.May I have some coffee?
A.Yes,you have.   B. Yes,you can.  C.  Yes,certainly.
( ) 5.Shall we visit the factory?
A.Yes,we do. B.Yes, we shall.  B.All right.
( ) 6.Would you like something to eat?
A.Yes,we would. B.Yes, I’d like some cakes. C.Yes, of course.
( ) 7.What can I do for you?
A.Yes,you can. B.No,I can do it. C. Yes，I’d like some oranges.
( ) 8.John___ come to see us tonight, but he isn't very sure yet.
A. may B. can C. has to D. must
( ) 9. They ___ do well in the exam.
A. can be able to B. be able to C. can able to D. are able to
( ) 10.-May I take this book out?
-No, you___. A. can't B. may not C. needn't D. aren’t
( ) 11.You___ go and see a doctor at once because you're got a fever.
A. can B. must C. dare D. would
( ) 12.-Can you speak Japanese?
-No, I____. A. mustn't B. can't C. needn't D. may not
( ) 13 -He___ be in the classroom, I think.
-No, he ___ be in the classroom. I saw him go home a minute ago.
A. can; may not B. must; may not C. may; can't D. may; mustn’t
( ) 15 Even the top students in our class can't work out this problem, so it       be very difficult. A. may B. must C. can D. need
( ) 16 He isn't at school. I think he ___ be ill.
A. can B. shall C. must D. has to
( ) 17 ___ I take this one? A. May B. Will C. Are D. Do
( ) 18 The children___ play football on the road.
A. can't B. can C. mustn't D. must
( ) 19 You ___ be late for school again next time.
A. mustn't B. needn't C. don't have to D. don't need to
( ) 21 His arm is all right. He___ go and see the doctor.
A. has not to B. don't have to C. haven't to D. doesn't have to
( )22-Shall we go and visit the History Museum next Sunday?
A. Here you are B. Sorry, I can't C. Yes, please D. Let me try
( ) 23 -___ I take the newspaper away?
-No, you mustn't. You____read it only here.
A. Must; can B. May; can C. Need; must D. Must; must
( ) 24 ___ you like to have another try?
A. Could B. Will C. Would D. Do
( ) 25 -Would you like to go boating with us?
-Yes, ___.A. I'd like B. I want C. I'd like to D. I do
( ) 26 You___ worry about your son. He will get well soon.
A. needn't B. can't C. mustn't D. have to
( ) 27 -Must we do our homework first?
-No, you___. You may have a rest first.
A. mustn't B. needn't C. may not D. can't

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