表語從句
1. 定義:用作表語的從句叫做表語從句。
2. 構(gòu)成:關(guān)聯(lián)詞+簡單句
3. 引導表語從句的關(guān)聯(lián)詞的種類:
(1)從屬連詞that.如:
The trouble is that I have lost his address. 麻煩是我把他的地址丟了。
(2)從屬連詞whether, as, as if.如:
He looked just as he had looked ten years before. 他看起來還與十年前一樣。
The question is whether they will be able to help us. 問題是他們是否能幫我們。
注:從屬連詞if一般不用來引導表語從句,但as if卻可引導表語從句,如:
All this was over twenty years ago, but it's as if it was only yesterday.
這都是20多年前的事了,但宛如昨天一樣。