must反意疑问句用法总结

发布时间：2020-03-08 12:23:10 来源：文档文库

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“must”表推测的反意疑问句最佳掌握法

“must”表推测的反意疑问句是高考考点之一，一般资料把它概括为三种情形：对当前状况的推测，对过去情况的推测和对现在完成情况的推测。学生对后两种情况往往难以界定。现介绍一种最简洁并确保万无一失的方法，即先将该句变成表达事实的句子，再形成反意疑问，便可得出正确形式。请看以下各例：

1.She must be in the office.

事实：She is in the office.

反意疑问: isn’t she?

2.He must go by bus.

事实：He goes by bus.

反意疑问: doesn’t he?

3.You must have seen the film last week.

事实：You saw the film last week.

反意疑问: don’t you?

4.They must have been here yesterday.

事实：They were here yesterday.

反意疑问: weren’t they?

5.He must have waited here for a long time.

事实：He has waited here for a long time. 反意疑问: hasn’t he?

6.You must have been to the USA.

事实：You have been to the USA.

反意疑问: haven’t you?

陈述部分的谓语	疑问部分
I/主语	aren't I / are I
no,	肯定含义
ought to（肯定的）	oughtn't +主语
have to+v.(had to+v.)	don't +主语(didn't +主语)
used to+v.	didn't +主语或 usedn't +主语
had better + v.	hadn't you
would rather + v.	wouldn't +主语
you'd like to + v.	wouldn't +主语
must	根据实际情况而定
感叹句	be +主语
指示代词或不定代词 everything,that, nothing,this	主语用it
并列复合句	谓语根据邻近从句的谓语而定
定语从句,宾语从句主从复合句	根据主句的谓语而定
think,believe,expect, suppose,imagine等引导	与宾语从句相对应的从句
everybody,anyone,somebody,nobody,no one	复数they, 单数he
情态动词dare或need	need/needn't (dare/daren't ) +主语
dare, need 为实义动词	do/don't +主语
省去主语的祈使句	will/won't you？
Let's 开头的祈使句	Shall we?
Let us 开头的祈使句	Will you?
there be	相应的谓语动词+there(省略主语代词）
否定前缀不能视为否定词	仍用否定形式