史上最全的主语从句讲解及其练习

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主语从句 复习

一、主语从句的连词分三类

(1)从属连词引导的主语从句 (that whether if)

that引导的主语从句:引导词that无含义/在句中不做成分/不可以省。That 引导主语从句通常用it 作形式主语。

That she survived the accident is a miracle.

whether有含义(是否)/在句中不做成分/不可以省。

注意:引导主语从句,不能用if不能在开头,只能用whether。

Whether she is coming or not doesn’t matter too much. (2) 用连接代词引导的主语从句

在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中,其连接代词在句中起名词性作用,担当一定成分. 例如 Whatever we do is to serve the people. 注:whatever / whoever的功用

whatever = anything that; whoever = anyone who。要注意和whatever, whoever引导的让步状语从句的区别。

如:Whoever breaks the law should be punished. (主语从句)

( =Anyone who breaks the law should be punished. )

Whoever breaks the law, he should be punished. (让步状语从句)

( =No matter who breaks the law, he should be punished. )

(3)用连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语。)

例如:Where we should leave it is a problem.

When they will come hasn’t been made pubic.

三、it 作形式主语的主语从句

有时为了考虑句子平衡,通常在主语从句处使用形式主语it,而将真正的主语从句移至句末。这分四种情况:

(1) 对于以连词that引导的主语从句,通常用形式主语it替代主语从句:

It is +名词+从句

It is a fact that… 事实是……;It is good news that … ……是好消息;It is a question that … ……是个问题;It is common knowledge that … ……是常识

类似的名词还有:a pity;a wonder;a good thing; no wonder; surprise等。

It is a mystery to me how it all happened.

It is common knowledge that the whale is not a fish.

It is no surprise that Bob should have won the game.

It is +形容词+从句 It is necessary that … 有必要……;It is clear that … 很清楚……;It is likely that … 很可能……;It is important that 内容过长,仅展示头部和尾部部分文字预览,全文请查看图片预览。 match is a matter of public concern.

A. Which B. That C. If D. How

20..________leaves the room last ought to turn off the lights.

A. Anyone B. The person C. Whoever D. Who

答案:高某某:CBBA 1~5 CBACD 6~10DDCAA 11~15 CBDAC 16~20 BDCAC

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