同位语从句和定语从句怎么区别？ 名词性从句定语从句状语从句那种是...

Question

如题所述

Answer 1

最简单的方法： 看从句前的引导词在从句中是否做成分。

引导词充当从句成分，则是定语从句， 引导词作宾语时可以省略。

不做句子成分，则是同位语从句，引导词虽不做成分，但不能省略。

比较：
The news that he has won the first prize makes us excited.
that he has won the first prize 此句主he 谓 has won 宾 the first prize都有，故that不充当成分，此句是同位语从句。
The news that he told us made us excited.
that he told us 此句 主 he 谓 told , 接双宾us 以及前面的引导词that ，故此句是宾语从句。

另外，在关系代词方面，非限制性定语从句不能用that引导，其余情况与限制性定语从句的引导词相同。
如：
指人: who , whom
指物： which
表示“....的”/ 所属关系 whose

状语从句 顾名思义， 一个句子充当主句的状语 则是状语从句。
如：
When the teacher came in, the students were talking .
When the teacher came in做主句谓语 were talking 的时间状语，所以是状语从句。