主语从句用法详解(例句丰富)
一、主语从句的引导词主语从句通常由连词
that">
that和
whether、连接代词或连接副词以及关系代词型
what">
what引导。
1. that">that引导http://
yingyu.
chazidian.
comThat 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. 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 coming 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 &
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nbsp;子里引起很大轰动。
2. whether引导Whether it">
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Whoever is top from wins the game when two matched players meet. 两强相争勇者胜。
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When we arrive doesn’
t matter. 什么时候到没有关系。
How it">
it was done was a mystery. 这是怎样做的是一个谜。
How this happended is not clear to anyone. 这件事怎样发生的,谁也不清楚。
How many people we are to ite">inv
ite
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. 关系代词型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. 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 Portugal. 我担心的是他们把他带到葡萄牙去。
What struck me was that">
that they have all suffered a lot. 给我很深印象的是他们都受过很多苦。
&
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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。这分三种情况:
(1) 对于以连词
that">
that引导的主语从句,通常用形式主语代主语从句:
It’s a p
ity
that he didn’t come. 很遗憾他没来。
It is important that">
that he should know about this. 他必须知道此事。
It’s v
ital
that we be present. 我们出席是至关重要的。
It was intended that">
that you be the candidate. 大家的意图是让你当候选人。
It is important that">
that this mission not fail. 这项使命不失败至关重要。
It is essential that">
that a meeting be convened this week. 本周开一次会非常重要。
It is appropriate that">
that this tax be abolished. 废除这个税是恰当的。
It’
s unfair that">
that so many people should lose their jobs. 竟有这么多人失业这是不公平的。
It’s amazing
that she should have said nothing about
it. 她竟未谈及此事令人惊讶。
It’
s unthinkable that">
that they should deny my request. 他们竟然拒绝我的请求,这是不可思议的。
That they should refuse to sign the pet
ition required great courage. 他们拒绝在请愿书上签字这是需要很大勇气的。
(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:
Whether they would support us was a problem. 他们是否会支持我们还是一个问题。
It was a problem whether they would support us. 他们是否会支持我们还是一个问题。
It remains to be seen whether
it will do us harm or good. 它对我们是利是害,还得看看再说。
(3) 对关系代词型
what引导的主语从句,通常直接将主语从句放在句首。如:
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。
有时也可将助用形式主语。如:
It is clear enough
what he meant. 他是什么意思很清楚。
(4) 如果句子是疑问句,则必须用带形式主语
it的结构:
Is
it true
that he is the girl’s father? 他是那女孩的父亲,是真的吗?
How is
it that you are late again? 你怎么又迟到了?(from
http://
yingyu.
chazidian.
com)
三、连词that的省略问题引导主语从句的连词
that 有时可省,有时不能省,其原则是:若
that引导的主语从句直接位于句首,则
that不能省略;若
that引导的主语从句位于句末,而在句首使用了形式主语
it,则
that可以省略:
That you didn’t go to the talk was a p
ity. 很遗憾你没去听报告。(
that不可省)
It was a p
ity (
that) you didn’t go to the talk. 很遗憾你没去听报告。(
that可省)
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