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1、表语从句用法讲解 _高中英语语法 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 a
2、re short 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 couldnt 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。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
3、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 question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋。The problem was that it was too valuable for everyday use
4、.问题是它作为日常之用太贵重了。What she couldnt 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 pro
5、blem was who could do the work.问题是谁能做这项工作。Thats what he is worrying about.那就是他在担心的事。Thats what we should do.那是我们应该做的。4、由关系副词引导的表语从句。Go and get your coat.Its 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.Thats 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 ru
6、in 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。略困难是我们资金短缺这就是为什么在新英格兰用石头墙而不用栅栏的原因当时我似乎怎么也想不出一个恰当的字眼 题麻烦问题结果可能性建议想法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麻烦的事是他丢了钱问 关系代词引导的表语从句关系代词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问题是我们哪一个应该去 It looked as if it was going to snow.看起来好像要下雪了。Thats because we never thought of it.这是因为我们从未想过此事。It seems as if he didnt know the answer.好像他不知道答案。略困难是我们资金短缺这就是为什么在新英格兰用石头墙而不用栅栏的原因当时我似乎怎么也想不出一个恰当的字眼 题麻烦问题结果可能性建议想法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麻烦的事是他丢了钱问 关系代词引导的表语从句关系代词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问题是我们哪一个应该去