高中英语从句总复习 1 )表语从句 1
定义:用作表语的从句叫做表语从句
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
连词because 可引导表语从句