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英语语法备考:表语从句讲解

来源:51EDU精品学习网

2018-10-26

说明主语是什么,由名词、形容词或相当于名词或形容词的词或短语充当表语。和连系动词一起构成谓语。一般结构是“主语+系动词+表语从句”。

一、表语从句的引导词

引导表语从句的词有:

从属连词:that, whether, as if, as though,

because, as;

关系代词:who, what, which, whom, whose,

whatever, whoever, whomever, whichever等;

关系副词:when, where, why, how, however,

whenever, wherever等;

1. 由从属连词that, whether, as if, as though, because, as引导

The fact is that he doesn’t really try. 事实是他没有做真正的努力。

The trouble is that I have lost his address. 麻烦的是我把他的地址丢了。

My suggestion is that we should tell him. 我的建议是我们应该告诉他。

The question is whether the film is worth seeing. 问题是这部电影是否值得看。

【注意】whether 可引导表语从句,但与之同义的if则不能引导表语从句。

It isn’t as if you were going away for ever. 又不是你离开不回来了。

Now it was as though she had known Millie for years. 现在好像她认识米莉已有好多年了似的。

It is not as though we were poor. 又不是我们家里穷。

It is because I love you too much. 那是因为我太爱你了。

That’s because you can’t appreciate music. 这是因为你不能欣赏音乐。

If I’m a bit sleepy, it’s because I was upall night. 如果我有点困,是因为一夜没睡。

It's because I passed a slip of paper for John to Helen in class. 这是因为我在上课中替约翰传纸条给海伦。

【注意】because 可引导表语从句,但与之同义的since, as, for等也不用于引导表语从句。

He looked just as he had looked ten years before. 他看起来还与十年前一样。

2. 由关系代词who, what, which, whom, whose, whatever等引导

You are not who I thought you were. 你已不是我过去所想像的人。

The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。

The question is who (m) we should trust. 问题是我们应当相信谁。

What I want to know is which road we should take. 我想知道的是我们应走哪条路。

That’s what I want to stress. 这是我想强调的。

That’s what we are here for. 我们来这里就为了这个。

He is no longer what he was. 他已经不是以前的他了。

3. 由关系副词when, where, why, how, however等引导

The problem is how we can find him. 问题是我们如何找到他。

That was when I was fifteen. 这是我15岁时发生的事。

That’s where I first met her. 那就是我第一次遇见她的地方。

That’s why he didn’t come. 这就是他没有来的缘故。

That’s where you are wrong. 这就是你不对的地方。

标签: 英语 英语语法

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