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表语从句用法精讲 表语从句讲解

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表语从句讲解（表语从句用法精讲）

表语从句用法精讲 表语从句讲解

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1、表语从句概述
用作表语的从句叫作表语从句，它位于主句中的连系动词之后 。引导表语从句的词有从属连词that、whether、as though(if)；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 。可以接表语从句的连系动词由be, look, remain, seem等 。That引导表语从句时，在口语中，间或可以省略 。
The trouble is that we are sho网rt of money.困难是我们资金短缺 。
That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因 。
At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来 。
2、由从属连词that，whether引导的表语从句 。
【表语从句用法精讲 表语从句讲解】that在引导表语从句时无词义，而whether有词义，意为、“是否” 。这时主句的主语常常是些抽象名词，如question(问题)，trouble(麻烦)，problem(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)等 。表语从句对主句主语进行说明、解释，使主语的内容具体化 。
The trouble is (that) she has lost his money. 麻烦的事是他丢了钱 。
The quest网ion is whether we need more ice cream.问题是我们是否还需要一些冰淇淋 。
The网 problem was that it was too valuable for everyday use.问题是它作为日常之用太贵重了 。
What she couldn’t understand was that fewer and fewer students showed interest in her lessons. 我们不能理解越来越少的学生对他的课不感兴趣 。
3、由关系代词引导的表语从句 。
关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略 。
The question is which of us should go.问题是我们哪一个应该去 。
The problem was who could do the work.问题是谁能做这项工作 。
That's what he is worrying about.那就是他在担心的事 。
That's what we should do.那是我们应该做的 。
表语从句用法精讲 表语从句讲解

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4、由关系副词引导的表语从句 。
Go and get your coat. It's where you left it. 去把雨衣拿来 。就在你原来放的地方 。
I had neither a raincoat nor an umbrella. That’s why I got wet through. 我们既没伞也没雨衣，这是我们淋湿的原因 。
That is how mice ruin many stores of grain every year.那就是老鼠是怎样每年损害大量粮食的 。
That is what he is worried about.那就是他所担心的 。
5、由连词because，as if/as though等引导的表语从句 。
It looked as if it was going to snow.看起来好像要下雪了 。
That's because we never thought of it.这是因为我们从未想过此事 。
It seems as if he didn’t know the answer.好像他不知道答案 。
表语从句用法精讲 表语从句讲解

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