1定语从句概述在复合句中作定语的从句叫定语从句。被定语从句所修饰的词叫先行词,通常位于定语从句之前。引导定语从句的是关系代词that,which,who,whose,whom和关系副词when,where,why。关系代词或关系副词既起连接作用,又充当从句中的一个成分。关系词作用先行词例句that,who,whom(只作宾语)主语、宾语、表语人Do you know the old man who/that is standing under the tree?你认识站在树下的那个老人吗?that,which主语、宾语、表语物She got a computer which/that her parents bought for her.她有一台电脑,这台电脑是她父母买给她的。whose定语人/物The boy whose father is a doctor studies very hard.这个男孩学习非常刻苦,他爸爸是位医生。The room whose window is open is
