初中英语语法 must,have to和have got to的用法

发布:佚名   时间:2010-3-2 10:57:00   来源:京翰教育中心   录入:杨   人气:781
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二、have to / have got to 的用法

1)must表示一种主观的需要,而have to 表示一种客观的需要,意思是“不得不”。 如:

I have to attend an important meeting this afternoon.

今天下午我不得不参加一个重要的会议。

Mother is out, so I have to look after the shop.

妈妈不在家,因此我不得不照看商店。

2)have to 的否定形式是don’t have to, 相当于needn’t.如:

They don’t have to buy a computer at present.

他们目前没有必要买电脑。

3)have to 与have got to 常可以互换。

三、巩固练习:

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。

1. Mike, you ______ play with fire. You______ burn yourself.

A. won’t; can’t B. mustn’t; may

C. don’t have to; must D. have got to; shouldn’t

2. You ______ see the doctor, Joe. You don’t look very well.

A. must B. shall

C. may D. can

3. —Must I clean the window now?

—No, you ______.

A. mustn’t B. needn’t

C. can’t D. may not

4. Jack’s ill, so they ______ change their plans.

A. must B. should

C. have got to D. ought to

5. Harry has been reading all day —he ______ be tired.

A. should B. has got to

C. has to D. must

Key 1: 1-5 BABCD

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