一、when
when指时间,其先行词表示时间,在句中作时间状语。
例如:This was the time when he arrived.
这是他到达的时间。
说明:
① 先行词:time
② 关系副词:when
③ when he arrived 这个定语从句修饰 time(作为 time 的定语)
④ when 在这个从句中充当状语,表时间。
二、where
where指地点,其先行词表示地点,在句中作地点状语。
例如:This is the place where he works.
这是他工作的地点。
说明:
① 先行词:place
② 关系副词:where
③ where he works 这个定语从句修饰 place
④ where 在这个定语从句中充当状语,表地点。
扩展资料
which和where引导定语从句时的用法及差异
1、定语从句用which引导时,which在定语从句中作主语或宾语,从句结构不完整;
定语从句用where引导时,where在定语从句中作地点状语,从句结构(主语、宾语)完整。
如:I want to go to Century Park, where I will have a good time with my friends. / I want to go to Century Park, which has already attracted many tourists.
2、非限制性定语从句有时修饰整个句子或句子的一部分,此时只用which来引导定语从句,前面用逗号隔开。
如:He was very rude to his teacher, which certainly annoyed her.
3、在从句结构完整的前提下,抽象名词(如situation, condition, point, case, environment, circumstance, advantage, system, development等)后用where引导定语从句。
如:His technique developed to the point where he can repair many electrically-powered machines.