when、where、why引导的定语从句

英语自学网

一、基本概念
        关系副词的意思相当于“介词+which结构”，在定语从句中做状语的成分。
        1.He will always remember the day when/on which his father returned from America.
        他将永远记得父亲从美国返回的那一天
        拆分后：
        He will always remember the day.
        His father returned from America on the day..
         
        2.This was the time when/at which she left for Beijing.
        这就是她动身去北京的时间。
        拆分后
        This was the time.
        She left for beijing at the time.
         
        3.I don’t know the reason why/for which he didn’t come to the meeting yesterday morning.
        我不知道他为什么没有参加昨天上午的会议。
        I don’t know the reason.
        He didn’t come to the meeting yesterday morning for the reason.
        重要提示：
        在when、where、why关系副词引导的英语定语从句中，只会出现when、where、why或on which、at which、for which等等，绝对不会出现on when、at where、for why这种情况，因为关系副词引导的定语从句只能起状语作用，既不能做动词的宾语，也不能做介词的宾语。