内容正文:
重点语法选必3Unit 2Out of this world (解析版)
2021-2022学年高二英语下册链接教材精准变式练(译林版2020)
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重点语法知识链接及典例解读
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主语从句
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Ⅰ.完成下列句子并体会它们的语法特征
1. That the earth travels round the sun is a well-known fact.
2. It is uncertain whether the artist can do it or not.
3. Who will act the lead in the play has not been decided yet.
4. Where the young man has gone is not known.
5. It is not yet decided when and where the test will be given.
Ⅱ.主语从句概念
一、主语从句的引导词
主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导。
1. that引导
That he is still alive is a wonder. 他还活着,真是奇迹。
That he should have ignored the working class was natural. 他忽视工人阶级是很自然的。
2. whether引导
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
Whichever (of you) comes in first will receive a prize. 无论(你们)谁先到都可以得奖。
4. 连接副词引导
When we arrive doesn’t matter. 什么时候到没有关系。
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 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. 关系代词型what引导
What’s done is done. 事已成定局。
What I am telling you is mere impressions. 我和你说的都不过是一些印象而已。
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。这分三种情况:
(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:
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 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。
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 they should deny my request. 他们竟然拒绝我的请求,这是不可思议的。
(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。
(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。
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?
三、连词that的省略问题
引导主语从句的连