详细讲解一下同位语从句

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详细讲解一下同位语从句详细讲解一下同位语从句详细讲解一下同位语从句同位语从句属于名词性从句,大多由从属连词that引导,常常跟在fact,idea,opinion,news,hope,belief等名

详细讲解一下同位语从句
详细讲解一下同位语从句

详细讲解一下同位语从句
同位语从句属于名词性从句,大多由从属连词that引导,常常跟在fact,idea,opinion,news,hope,belief等名词后面.同位语从句一般用来解释或说明这些名词的具体含义或内容,在逻辑上表现为同位关系.例如:
They are familiar with the opinion that all matter consists of atoms.他们很熟悉这一观点,所有的物质都是由原子构成的.
1、从先行词来看
同位语从句与名词之间在逻辑上是"主语+be+表语"的关系.该名词是需要做特殊说明的抽象名词.例如:
They were delighted at the news that their team had won.当听到他们的球队赢了的消息时,他们欣喜若狂.
2、从引导词来看
引导词that在同位语从句中是连词,只起连接作用,无具体词义,that不可省略;that在定语从句中是关系代词,它在从句中充当一定成分---主语或宾语,有具体词意,作宾语时还可以省略.试比较:
The factory(that)we visited yesterday is a chemical one.我们昨天参观的那家工厂是化工厂.(that在从句中作宾语,所以此句是宾语从句)
The news that he will leave for Shanghai is true.他将要去上海的消息是真的.(that只起连接从句的作用,所以此句是同谓语从句)