高中英语语法定语从句总复习(高考英语语法专题16-同位语从句)(1)

I.意义:说明其前面的名词的具体内容。通常由that引导,也可由其他连接代词或连接副词引导,前面的名词有:advice,demand,doubt,fact,hope,idea,information,message,news,order,problem,promise,question,request,suggestion,truth,wish,word等。

1. The news that we won the game excited all of us.

我们赢得这场比赛的消息让我们每个人都很激动。

2. I have no idea when he will come back home.

我不知道他什么时候回家。

II.同位语从句和定语从句的区别:

(1)意义不同:对名词的具体内容作解释说明;

定语从句,对前面名词进行修饰、限制

(2)连接词用法不同that引导同位语从句时,只起连词的作用, 没有实际意义,不充当句子成分,一般不能省略。that,引导定语从句时,充当句子成分,在从句中作宾语时可以省略; 试比较:

I had no idea that you were here. (that引导同位语从句,不能省略)

Have you got the idea (that) this book gives you of life in ancient Greece?(that引导定语从句,作宾语,可以省略)

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