定语从句中的关系副词到底应该怎么使用?加上介词的which又应该怎么用?怎样看状语的成分?

7.介词加关系代词中介词的选用
⑴根据先行词的习惯搭配.如：
I was surprised at the way in which he treated the old man.他对待老人的方式使我吃惊.
It was the school at which we got to know each other.我们是在学校相识的.
⑵根据从句中谓语动词的固定搭配.
This is the teacher from whom we ve learnt a lot.这就是我们从他那里学到很多东西的那位老师.
The policeman with whom Mr.Henry is talking in the office is a friend of mine.正在办公室里与亨利先生谈话的那位警察是我的一位朋友.
⑶根据句子的意义.
My glasses,without which I was like a blind man,fell to the ground and broke.我的眼镜掉在地上摔坏了,没有它,我就像个瞎子.
There is a tall tree outside,under which stands our teacher.外面有棵大树,我们老师就站在下面.