《2025年同步练习册山东人民出版社高中英语选择性必修第一册外研版》

◆◆◆语法新知 衔接课堂◆◆◆
非限制性定语从句
一、语法现象感知
①I walk through the doors into the waiting area, where there's a familiar atmosphere of boredom and tension.
②Laughter produces chemicals to make people feel better, which means clown doctors can be helpful.
③I speak with the on - duty nurse, who tells me that Lara's parents rushed her to the hospital after she fell off her bicycle.
二、语法规则理解
句①②③中，关系词前面均有逗号，它们引导的为非限制性定语从句。

答案： 二、逗号；非限制性定语从句