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1、情態(tài)動詞can may must should would
情態(tài)動詞can may must should would
Must
(1)以must 開頭的一般疑問句----肯定回答: 只能用must
----否定回答: A: mustn’t (一定不行)
B: needn’t (沒有必要)
(2)Must 和have to 用法的區(qū)分: 表示“必須,一定”是,句子是一般現在時的時候只能用
must , 其他各種時態(tài)都用have to
May
(1)表示對客觀事實可能性的推測:
may +do 表示對現在情況的推測; may have +動過分表示對過去情況的推測
(2
2、)以may 開頭的一般疑問句----肯定回答: 通常都用may
----否定回答: A: may not (不可以)
B: mustn’t (絕對不行)
Would
Would 主要是表示“愿意”,其次作為will 的過去式使用,多用于情景對話里.
(1)Would you like some tea? Yes, please.\ No, thanks.
(2)Would you like to join us? Yes, I’d like to. \ I’d like to but…
(3)Would you like me to help you with your Engl
3、ish?
Yes,please.\That’s very kind of you.
No, thanks. \ No,thank you. I can do it myself.
情態(tài)動詞練習
( ) 1. ----Must I get up early tomorrow, Dad? ---- No, you . Tomorrow is Sunday.
A. can’t
B. mustn’t
C. needn’t
D. couldn’t
( ) 2. ----- I have some chocolates now? ----No, you . It’s time for b
4、ed. You can have some tomorrow.
A. May , mustn’t
B. Must, needn’t
C. Must, mustn’t
D. May, needn’t
( )3. After a long walk, the old man be tired now.
A. can
B. must
C. has to
D. need
( ) 4. Even the top students in our class can’t work out this problem, so it be very difficult.
A. may
B.
5、 must
C. can
D. need
( ) 5. Computers process difficult problems very quickly.
A. must
B. need
C. should
D. can
( ) 6. Cars, buses and bikes stop when the traffic lights change to red.
A. can
B. may
C. must
D. need
( ) 7. Susan’s parents have bought a large house with a swimming pool. I
6、t be very expensive.
A. must
B. can
C. mustn’t
D. can’t
( ) 8. We keep the new traffic law and learn how to protect ourselves.
A. may
B. should
C. can
D. need
( ) 9. --- I fill in the check-in form right now, sir? ---No, you needn’t . You can complete it this afternoon.
A. May
B. Can
C.
7、 Would
D. Must
( ) 10. It’s nearly seven o’clock. Jack be back home at this moment.
A. must
B. need
C. could
D. can
( ) 11. You leave this work for tomorrow. You finish it today.
A. can’t , may
B. needn’t , must
C. mustn’t ,must
D. may, should ( ) 12. You take an umbrella with you because
8、 it’s fine.
A. can’t
B. may not
C. mustn’t
D. needn’t
( ) 13. Professor Wang in the meeting room because I saw him in the supermarket a moment ago.
A. must be
B. mustn’t be
C. can be
D. can’t be
( ) 14. The walls look clean. They .
A. needn’t painted
B. don’t need painted
C. needn’t to
9、be painted
D. don’t need painting
( ) 15. Our class teacher, Miss Liu , can hardly ride her bicycle to school, ?
A. can she
B. can’t she
C. isn’t she
D. does she
( )16. A: Must I finish my homework before I play video games, Mum?
B: I’m afraid you .
A. must
B. mustn’t
C. can
D. can’t
( ) 17. Though little Tom is only five, he draw very beautiful pictures.
A. must
B. may
C. can
D. need
情態(tài)動詞can may mustshouldwould
