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2018年公共英语四级重点语法资料:表语从句

中华考试网   2018-05-16   【

2018年公共英语四级重点语法资料:表语从句

  表语从句

  1、表语从句概述

  表语从句在复合句中作主语的表语。一般放在主句的谓语动词(联系动词)之后,引导表语从句的词有连词that, whether, as if;代词who, what, which;副词when, where, how, why等,如:

  The trouble is that she has lost his address. 麻烦在于她弄丢了他的地址。

  The question is whether it is worth doing. 问题在于是否值得做。

  It looked as if it was going to snow. 看起来似乎要下雪。

  That is what he is worried about. 那就是他所担忧的。

  That is where he was born.那儿是他出生的地方。

  This is how she did it. 这就是他如何做这件事的。

  That is why he was late. 那便是他为何迟到了。

  2、that引导的表语从句

  当表语从句为陈述句的语气时,用that来引导,that无任何义,不充当任何句子成分,如:

  The fact is that the child is lying. 事实是那个小孩在说谎。

  The trouble is that we are short of money. 问题在于我们缺钱。

  The reason is that we can’t get there on time. 原因在于我们不能按时到达那里。

  3、whether引导的表语从句

  当表语从句为不确定的语气时,用whether来引导,此时通常不可用if代替whether,如:

  The question is whether people will buy it. 问题在于人们是否会买它。

  What I want to know is whether I should to there. 我想要知道的是我是否应该去那里。

  4、wh-疑问词引导的表语从句

  当表语从句为疑问的语气时,用wh-疑问句来引导,要注意表语从句的语序要用陈述句的语序,如:

  The question is where we should go. 问题是我们应该去哪儿。

  That is why he was late. 那是他为什么迟到了

  5、as if/ though引导的表语从句

  He looks as if he were angry. 他看起来似乎非常生气。

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