18.5介词+干系词-定语从句
18.5介词+干系词
1）介词背面的干系词不能省略。
2）that前不能有介词。
3）某些在从句中充那时候，地点或缘故原因状语的"介词+干系词"构造可以同干系副词when和where
交换。例如：
This is the house in which I lived two years
ago.这是我两年前住过的房子。
This is the house where I lived two years
ago.
Do you remember the day on which you joined
our club?还记得你加进我们俱乐部的那一天吗？
Do you remember the day when you joined our
club?

关键字：定语从句的干系词 定语从句指导词 定语从句的指导词 定语从句的先行词 定语从句 先行词