非限制性定语从句的连接词有哪些？

非限制性定语从句的连接词有哪些 非限制性定语从句是对先行词进行补充说明的语法结构，与主句之间通常用逗号隔开，去掉后不影响主句意思的整性。其连接词主要分为关系代词和关系副词两类，具体包括以下几种：

一、关系代词

1. which which 是最常用的非限制性定语从句连接词，可指代先行词指物，也可指代整个主句内容。

• 指代先行词物：The museum, which was built in 1920, attracts millions of visitors yearly.
• 指代整个主句：She won the competition, which surprised everyone.

  2. who 与 whom who 用于指代先行词指人，在从句中作主语；whom 同样指代人，但在从句中作宾语。

  • who主语：My aunt, who is a teacher, often helps students after class.
  • whom宾语：Mr. Wang, whom we met at the conference, will visit our school next week.

    3. whose whose 表示“……的”，用于修饰先行词人或物，在从句中作定语，后接名词。

    • 修饰人：The girl, whose hair is black, is my classmate.
    • 修饰物：The old tree, whose branches are broken, needs to be removed.

      二、关系副词

      1. where where 指代先行词地点名词，在从句中作地点状语。

      • The city, where I grew up, has changed a lot.

      2. when when 指代先行词时间名词，在从句中作时间状语。

      The year 2020, when the pandemic broke out, left a deep impression on everyone.

      意事项

      非限制性定语从句中不能使用 that，即使先行词指物也需用 which。例如：

      错误：The novel, that I read last month, is very interesting.

      正确：The novel, which I read last month, is very interesting. 综上，非限制性定语从句的连接词包括关系代词 which, who, whom, whose 和关系副词 where, when，它们在句中分别承担不同的语法功能，需根据先行词类型及从句成分选择使用。