3.must 和have to的区别: have to是“不得不 .表示客观上的意义,而must是“必须 .表示主观愿望.如: It’s time for the meeting. I have to go now. 开会的时间到了.我得走了. 否定句,助动词do + not +have You don’t have to go.你现在不必走. You must be there on time.你务必按时到达那里. 否定句, 直接+not You mustn’t go there now. 现在你千万别上那儿去. must 的否定回答needn’t Must I go now? 我现在就得走吗? Yes, you must. 是的.你必须走. No, you needn’t. 不.不必. 查看更多

 

题目列表(包括答案和解析)

用may,might,could,must和can't填空

1.He ________ be French because he speaks French so much.

2.You'd better take an umbrella. It ________ rain before evening.

3.I don't know. It ________ be a stick.

4.The phone is ringing, but there is no answer. She ________ be at home.

5.Listen to the laughter. They ________ be enjoying themselves.

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综合填空,根据首字母和汉语意思完成下列短文,注意用正确的形式填空。
Everyone has two eyes . Of course our eyes aren’t lonely. When you feel sad or you fail to meet _小题1:__ (某人), tears will come down from your eyes as __小题2:__ (像往常一样). When you are happy, __小题3:____(特别) when you laugh hard, tears will come down from your eyes,__ 小题4:_ . But tears have a more important job than showing your f__小题5:___ .
Tears keep your eyes clean and healthy. They wash away dirt and germs(细菌) just like bath. Your eyes also need tears to keep them w__小题6:_. And eyes must be wet so that they can move smoothly. Your eyes are busy looking here and there all day long. They move quickly from one thing to another. If you didn’t have tears, your eyes will have t___小题7:__ seeing something clearly, and soon you would be blind.
Tears is __小题8:___(有益的).Maybe you don’t like tears, but your eyes can’t do without them. As we know , foggy weather will do harm to our eyes, so we must protect our ___小题9:_____ (环境) from being polluted.
We are p__小题10:_ of our eyes.

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用must, might, could和can't完成对话

A: Tina, you look worried. What's wrong ?

B : I (1) ________ find my English book. I (2) ________ have lost it .

A: Don't worry. Let's see where it (3) ________ be.

B: I think I (4) ________ leave it in the reading-room. But it isn't there.

A: What's your book look like.? Let's look for it together.

B : It's blue.

A: Oh, Look! Is this one yours?

B: No. It (5) ________ be mine. Tom's name is on it.

A: I'm afraid you have to buy a new one.

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用must, might, could和can't完成对话

A: Tina, you look worried. What's wrong ?

B : I (1) ________ find my English book. I (2) ________ have lost it .

A: Don't worry. Let's see where it (3) ________ be.

B: I think I (4) ________ leave it in the reading-room. But it isn't there.

A: What's your book look like.? Let's look for it together.

B : It's blue.

A: Oh, Look! Is this one yours?

B: No. It (5) ________ be mine. Tom's name is on it.

A: I'm afraid you have to buy a new one.

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用must,might,could和can't完成对话

A:Tina, you look worried. What's wrong?

B:I 1 find my English book. I 2 have lost it.

A:Don't worry. Let's see where it 3 be.

B:I think I 4 leave it in the reading-room. But it isn't there.

A:What's your book look like? Let's look for it together.

B:It's blue.

A:Oh, Look! Is this one yours?

B:No. It 5 be mine. Tom's name is on it.

A:I'm afraid you have to buy a new one.

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