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情态动词(2)


情态动词(2)

Model verbs(2)

?

? Would you take me with you,Miss Brown?
? You don’t have to get up at 4o’clock in the morning on Sunday.

have to

的用法及时态变化 have /has to +动词原形, 表示客观的需要或义务, 不得不做。否定句表示不 必,即不必要做。

一般现在时形式
非单三 单三
I have to get up early. He has to look after his sister. have to + v. has to + v.

They had to clean the classroom yesterday afternoon.

had to + v.

We will have to work in the future.

will + have to +v.

含有have to 的 否定句式 和 一般疑问句式

一般现在时形式
否定 句式 一般 疑问 句式 非单三
I don’t have to get up early.

单三

He doesn’t have to look after his sister.

don’t +have to +v. Doesn’t +have to +v.
Do you have to get up early?
Does he have to look after his sister?

Do +主语+have to +v. Does+主语+have to +V.

否定形 式

They didn’t have to clean the classroom yesterday afternoon.
didn’t +have to +V.

一般疑 问句式

Did they have to clean the classroom after school yesterday afternoon?

Did + 主语+have to +V.

否定形式

We won’t have to go to school next Sunday. won’t + have+ to +V. Will you have to go to school next Sunday?

一般疑问 句形式

Will +主语+have to +V.

1. ----Must I finish my homework now?

needn’t ---- No, you ________.
2. He must _____ be waiting for her at the bus station now.

情态动词would课表示礼貌的请 求,语气比will更婉转、客气。

Would you please pass me the salt? Yes, I will. Here you are.

Would you help me with the box, please? No , I won’t. I have to go now ,sorry?

(1):

Would you (please)+动词原形?
Would you (please)+not+动词原形?
注意:回答时要使用

will,而不用would。

Would you mind turning down your radio?
Of course not, I’ll turn it down right away.

Would you mind if I opened the window?
Yes, please don’t .I feel very cold.

(2):Would you mind+动词- ing ?

Would you mind +if+肯定句?
回答时,表示“不介意”常用 Certainly not./Of course not. /Not at all. /No. please.

表示“介意”常用Sorry. /I’m sorry /Yes. please don’t

情态动词will+动词原形,可 以表示某人的意思,意图, 多用于第一人称。
I will never drink coffee again. I won’t go there with you.

1. ----Must I finish my homework now?

needn’t ---- No, you ________.
2. He must _____ be waiting for her at the bus station now.

Sum up
?What have we learnt today? 1.have to 的用法及时态变化。

2.含有情态动词.have to 的否 定句式和一般疑问句式。 3.情态动词would 和will 的用 法。


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