Question

when引导的是什么从句？详细分析一下when引导从句

I didn't know the answer until one evening when I sat down at the computer to do some research on great women of china. 其中when引导的是什么从句
再总结一下when引导从句的各种用法

Answer 1

这句话当中when 引导的是定语从句，修饰前面的one evening.
when 除了可以引导定语从句之外还可引导名词性从句：
1 主语从句
when he will be back is still unknown.
2 宾语从句
we don't know when he will be back.
3 表语从句
the question is whenhe will be back.
当然when 所引导的最常见的还是状语从句
when he came back, he found his house broken into.
注意 when 可以引导以上各种从句，但其本身在从句中做状语！！！

Answer 2

壮从。
when除了壮从，还可引导定从;一个介词+which=when
eg：i remember the day when i went to the school.=........on which.....

Answer 3

when 引导的是定语从句
when 还可以引导时间状语从句，条件状语从句