高中英语语法大全:表语从句

1.定义:用作表语的从句叫做表语从句。2.构成:关联词+简单句3.引导表语从句的关联词的种类:(1)从属连词that。如:The trouble is that I have lost his address.麻烦是我把他的地址丢了。(2)从属连词whether,as,as if。如:He looked j

1.定义:用作表语的从句叫做表语从句。

2.构成:关联词+简单句

3.引导表语从句的关联词的种类:(1)从属连词that。如:The trouble is that I have lost his

address.麻烦是我把他的地址丢了。(2)从属连词whether,as,as if。如:He looked just as he had looked

ten years before.他看起来还与十年前一样。The question is whether they will be able to help

us.问题是他们是否能帮我们。

注:从属连词if一般不用来引导表语从句,但as if却可引导表语从句,如:All this was over twenty years ago,but

it's as if it was only

yesterday.这都是20多年前的事了,但宛如昨天一样。能跟表语从句的谓语动词一般为系动词be,seem,look等。如:It looked as if

it was going to

rain.看起来天要下雨了。(3)连接代词who,whom,whose,what,which,whoever,whatever,whichever 连接副词

where,when,how,why。如: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 how he did it.问题是他是如何做此事的。That was what she

did this morning on reaching the attic.那就是她今晨上了阁楼干的。

解释:1.连词because可引导表语从句。如:I think it is because you are doing too

much.我想这是因为你做得太多。2.在一些表示“建议、劝说、命令”的名词后面的表语从句中,谓语动词用虚拟语气。should+动词原形表示,should可省略。如:My

suggestion is that we (should)start early tomorrow.我的建议是我们明天一早就出发。

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