精——锐由关系副词when, where, why引导的定语从句 1. 基本用法定语从句除可用关系代词引导外,还可用关系副词when, where与why来引导,它们的区别是:when用于指时间,where用于指地点,why用于指原因。when, where, why 在定语从句中均用作状语。如:1980 was the year when he was born. 1980是他的出生年。This is the town where I was born. 这就是我出生的城市。This is the town where I was /SPAN>
These are the reasons why we do it. 这些就是我们这样做的理由。
2. 先行词问题关系副词when和where的先行词是表示时间(如the day, the days, the time, the year等)和地点(如the place, the house, the factory, the station等)的一类词,而关系副词why的先行词通常只是whythe reason(s)。另外,when和where可引导限制性和非限制性定语从句,而why则只用于引导限制性定语从句,不用于引导非限制性定语从句。
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