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自考英语:英语语法全攻略之表语从句[1] 含下载

kira86 于2008-04-08发布 l 已有人浏览
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(1)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

(1)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 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。

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