定语从句的问题iwillneverforgetthetimewhenwefirstmetinthepark.iwillneverforgetthetimewhichispentoncampus.第一句为什么用when,第二句为什么用which.我觉得这两句很像呀~

Question

定语从句的问题
i will never forget the time when we first met in the park.
i will never forget the time which i spent on campus.
第一句为什么用when,第二句为什么用which.我觉得这两句很像呀~

Answer 1

你可以用“还原法"（忘记叫什么了,我叫还原法）
因为被修饰的中心词（这两个句子就是 time）,可以将它放进从句里,看看它是作什么成分,就知道用什么关系词了.
第一句,i will never forget the time when we first met in the park.
还原：i will never forget the time.we first met in the park ( at the time) .
这里将time放入从句之后,其实是作为时间状语,所以用when引导
其实这里也可以用which引导,但前面必须加上介词at which = when
也就是：i will never forget the time (at which) we first met in the park.
第二句,i will never forget the time which i spent on campus.
还原：i will never forget the time.i spent (the time) on campus.
明显time在从句中作为宾语,所以用which来引导