Section Ⅲ　Grammar--限制性定语从句

语 境 自 主 领 悟 先观察原句 后自主感悟 1.Ancient China was a place where states were often at war with each other.

2.But it was also a time when there were many great philosophers.

3.Confucius is the philosopher whose influence has been the greatest.

4.Mencius believed that the reason why man is different from animals is that man is good.

5.Mozi was another teacher who was very influential.

6.As a result，he spent many years trying to find a state where people would follow his teachings. 1.3、5句中黑体部分的引导词是关系代词，分别在定语从句中充当定语、主语。

2.1、2、4、6句中黑体部分的引导词是关系副词，分别在定语从句中充当地点、时间、原因、地点状语。

　　在复合句中，修饰某一名词或代词的从句叫定语从句。被修饰的名词或代词叫先行词，定语从句一般放在先行词的后面，由关系代词或关系副词引出。

　　根据定语从句与先行词的关系，定语从句可分为限制性定语从句和非限制性定语从句。限制性定语从句为先行词在意义上不可缺少的定语从句，若去掉，被修饰的主句的内容就不完整或失去意义。这种从句和主句的关系十分密切，书写时不可用逗号分开。非限制性定语从句主句与从句之间用逗号分开，起补充说明作用，如果省去，意思仍然完整。

一、关系代词的用法