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