本文目录
定语从句是英语中比较常见的语法结构，它可以用来修饰名词或代词，进一步说明其特定的属性或特征。在定语从句中，有时可以省略一些句子成分，从而使句子更加简洁明了。本文将介绍定语从句的三种常见省略方式。
1. 关系代词省略
当定语从句中的关系代词在从句中充当主语时，我们可以省略它。例如：
-
The man [who is sitting next to me] is my brother. 可以省略为：The man sitting next to me is my brother.
-
The book [that I bought yesterday] is very interesting. 可以省略为：The book I bought yesterday is very interesting.
2. be动词省略
当定语从句中的关系代词在从句中充当主语，并且该从句中的谓语动词是 be 动词时，我们可以省略 be 动词。例如：
-
The girl [who is in the red dress] is my sister. 可以省略为：The girl in the red dress is my sister.
-
The car [which was parked outside] belongs to my friend. 可以省略为：The car parked outside belongs to my friend.
3. 关系副词省略
当定语从句中的关系副词在从句中充当状语时，我们可以省略它。例如：
-
The reason [why he was absent] is unclear. 可以省略为：The reason he was absent is unclear.
-
The way [in which she speaks] is very charming. 可以省略为：The way she speaks is very charming.
以上是定语从句的三种常见省略方式。当我们在写作或口语中遇到这些结构时，可以考虑是否可以使用省略的方式来简化句子，使其更加流畅自然。
