定语从句中怎么判断用关系代词还是关系副词

定语从句中怎么判断用关系代词还是关系副词

在定语从句中，判断用关系代词还是用关系副词，要看先行词在从句中作什么成分。
当先行词在从句中作主语、宾语时，用关系代词，如：
I like to take a vacation in the mountains, which is quiet and beautiful.
Never will I forget the day which we spent together.
This is the reason which he gave me for taking action.
当先行词在从句中作状语时，用关系副词when、where和why。如：
I like to take a vacation in the mountains, where there are a lot of plants.
Never will I forget the day when we worked together.
This is the reason why I didn't go to college.

要学会分析句子结构。关系代词在定语从句中起代词作用，作定语从句中的主语或宾语；关系副词起副词作用在定语从句中作状语。例如：

this is the place where i  was born.    i was born  句子完整，不在需要代词，故只能用关系副词。

这是我出生的地方。

this is the place that/which/不填 i visited,    i visited 缺宾语 故只能用关系代词，作宾语时关系代词可省

这是我参观过的地方。

i  never  forget the day  when he died.    he died. 句子完整，故用关系副词。

我永远忘不了他死的那一天。

i  never  forget the day  that/which/不填 i spent with you.    spent是及物动词，缺宾语，故用关系代词。

我永远忘不了我和你度过的那一天。