1 . While we ______ think we know what we want, we’re often wrong.

A．may

B．will

C．shall

D．must

2 . It _______ be freezing cold sometimes in spring in the south. It's called cold in the late spring.

A．shall

B．will

C．may

D．can

3 . — David, you look sick. What’s wrong with you?
— I have a bad headache and I ______ to see the doctor right now.

A．went

B．will go

C．am going to

D．go

4 . 单句改错
1. When I was young, I daren’t to swim in the swimming pool alone.
__________________________________________________________________
2. In my opinion, students don’t need pay more attention to their appearance.
_________________________________________________________________
3. When Harry was at college, he will go to the reading room after supper every day.
_________________________________________________________________
4. Martin hasn’t got in touch with me for ages. He mustn’t have got my new cellphone number.
_________________________________________________________________
5. It was an easy test and he would have passed, but he didn’t.
_________________________________________________________________
6. What is required in the regulations is that you mustn’t tell other people the password of your e-mail account.
_________________________________________________________________
7. Might you have a good time.
_________________________________________________________________
8. —Must I tell him the truth？
—No, you mustn’t.
_________________________________________________________________
9. Engines should not run without lubricants(润滑油).
_________________________________________________________________
10. If you make mistakes again, you should not take part in the match.
_________________________________________________________________

5 . —It's so cold here! Why haven't you turned on your air-conditioner?
—Well, it ______ turn on.

A．shouldn't

B．can't

C．won't

D．shan't

6 . 选词填空

needn't,　　must,　　should,　　might,　　can't,　　may,　　can,　　could,　　will,　　would

1. He_____________have passed the exam; otherwise, he wouldn’t be so happy.
2. Tom_____________be watching TV now at home, for I saw him going shopping just now.
3. I_____________go on the trip with you, but I am not sure yet.
4. The film is so boring, and we_____________as well not go to see it.
5. The World Wide Web is sometimes jokingly called the world wide wait because it _____________be very slow sometimes.
6. It is known to us all that oil_____________float on water.
7. I_____________have come here in time, but I met an old friend of mine. I stopped and talked with him for some time.
8. You failed again; you _____________work hard from now on.
9. It is not cold today; I_____________have put on the coat.
10. When he was young, he _____________play football after school.

7 . 语法填空（用方框内所给情态动词完成下面的句子）

1. Why are there only 12 tickets left? There _____________be 15.
2. A well-trained person _____________hold his breath under water for more than two minutes.
3. What's the matter with my computer? It _____________not work!
4. The situation there was still unclear, and my son _____________be in trouble though I was not quite sure.
5. He _____________not be serious, but is just joking.
6. He _____________be sleeping in the dormitory. You can find him there.
7. The witness was under strict protection, and no one but the police _____________get close to him.
8. What _____________we do if we come across such a person?
9. Since you have finished your work, you _____________go now.
10. When the weather was fine, he_____________ keep his wife company along the river bank.

8 . —What’s wrong with the door?
—The key has got stuck in it and ______ come out.

A．shouldn’t

B．mustn’t

C．needn’t

D．won’t

9 . —It’s so hot and uncomfortable here! Why are your windows still closed?
—Oh, I’m not to blame. They ________ open.

A．shan’t

B．mustn’t

C．won’t

D．wouldn’t

10 . You _____never work too hard in learning a language. That’s what it takes to learn a language well.

A．must

B．can

C．will

D．may