主语从句讲解

主语从句讲解

• 主语从句

• 一、主语从句的引导词

• 主语从句通常由连词that和whether/if、连接代词或连接副词引导。

• 1. that引导

• 2. whether引导

• 3. 连接代词引导

• 4. 连接副词引导

• 5. what引导

• 1. that引导

• That he is still alive is a wonder. • 他还活着，真是奇迹。

• That we shall be late is certain. • 我们要晚了，这是确定无疑的。

• That he should have ignored the working class was natural.

• 他忽视工人阶级是很自然的。

• That she is still alive is a consolation.

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• 她还活着是使人感到宽慰的。

• That she became an artist may have been due to her father’s influence.

• 她成为画家可能是受她父亲的影响。

• That you are co ming to London is the best news I have heard this long time.

• 你将来伦敦是好久以来我听到的最好消息。

• That she was chosen made a tremendous stir in her village. • 她被挑选上，在她村子里引起很大轰动。

• Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。

• Whether they would support us was a problem. • 他们是否会支持我们还是一个问题。

• 3. 连接代词引导

• who will give us a talk is unknown at all . • Whichever (of you) comes in first will receive a prize.

无论(你们)谁先到都可以得奖。

• Whichever you want is yours. 你要哪个，哪个就是你的。

• 4. 连接副词引导

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• When we arrive doesn’t matter. 什么时候到没有关系。

• How it was done was a mystery.

• 这是怎样做的是一个谜。

• How this happened is not clear to anyone. • 这件事怎样发生的，谁也不清楚。

• How many people we are to invite is still a question.

• 邀请多少人还是一个问题。

• Where I spend my summer is no business of yours. • 我在哪里过暑假不关你的事。

• 5. what引导

• What we need is money. 我们需要的是钱。

• What I want to know is this. 我想知道的就是这一点。

• What’s done is done. 事已成定局。

• What he says is not important. 他说的话并不重要。

• What I am telling you is mere impressions.

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• 我和你说的都不过是一些印象而已。

• What make the river more beautiful are the lotus plants growing in the water.

• 为河水增色的是水里的荷花。

• What you need is a good-sized canvas bag. • 你需要的是一个比较大的帆布袋。

• What I am afraid of is their taking him to the school.

我担心的是他们把他带到学校去。

• What struck me was that they have all suffered a lot. • 给我很深印象的是他们都受过很多苦。

• 二、主语从句与形式主语it

• 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。这分几种情况:

• (1) 对于以连词that引导的主语从句，通常用形式主语代主语从句

• (2) 对于以连接代词(副词)引导的主语从句，可以使用形式主语代主语从句，

也可直接在句首使用主语从句

• (3) 对what引导的主语从句，通常直接将主语从句放在句首。

• (4) 如果句子是疑问句，则必须用带形式主语it的结构

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• (1)

• It’s a pity that he didn’t come. 很遗憾他没来。

• It is important that he should know about this. 他必须知道此事。

• It’s vital that we be present. 我们出席是至关重要的。

• It was intended that you be the candidate. 大家的意图是让你当候选人。

• It is important that this mission not fail. 这项使命不失败至关重要。

• It is essential that a meeting be convened this week. • 本周开一次会非常重要。

• It is appropriate that this tax be abolished. • 废除这个税是恰当的。

• It’s unfair that so many people should lose their jobs. • 竟有这么多人失业这是不公平的。

• 她竟未谈及此事令人惊讶。

amazing, that, should have said nothing

• It’s amazing that she should have said nothing about it. • 他们竟然拒绝我的请求，这是不可思议的。Unthinkable, that

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• It’s unthinkable that they should deny my request.