能不能简单明了的给我解释一下介词加关系代词的用法

This is the man , to whom I gave a call. 这是我刚才给打电话的那个人。 give a call to sb 给某人打电话
如何确定介词？
一、根据定语从句中谓语动词的需要来确定介词。
如：
1．She paid the man from whom she had borrowed some money(=She paid the man．She had borrowed some money from him．)（borrow sth．from sb．意思是“向某人借东西”。）
2．In the dark street, there Wasn't a single person to whom she could turn for help.(NMET 1992)（turn to sb．for help意思是“求某人帮助”）
在这一句式结构中，句中的介词是与从句的谓语动词有一定的搭配关系。介词可用于关系代词之前，但先行词若指人，关系代词必须用whom，不能用who或that；若指物必须用which，不能用that。介词也可以置于从句谓语动词之后。这时，句中关系代词用who，whom，that均可，指物可用which或that，并均可省略。例如：
The middle-aged woman to whom I spoke just now is my English teacher．(=The middle aged woman[who/whom/that]I spoke to just now is my English teacher．)
二、根据定语从句的先行词的需要来确定介词。
1．He will never forget the day on which he joined the party.（on the day在那天）
2．Last Sunday my aunt bought me a telescope through which I could study the sky．（through a telescope透过望远镜）
三、根据定语从句中的形容词的需要来确定介词。
如：
China is a large country with a long history of which we are greatly proud．（be/feel proud of以……为自豪）
四、若表示“所有关系”或“整体中的一部分”，则用介词of。
如：
1．I live in this room, the window of which faces south．(=I live in this room, whose window faces south．)（表示“所有关系”）
2．There are over 3,000 workers in that factory, eighty-five percent of whom are women．=There are…, and 85％ of them are women．（表示“整体中的一部分”）
3．China has hundreds of islands, the largest of which is Taiwan．(=China has hundreds of islands and the largest of them is Taiwan．)
五、根据定语从句句意的需要来确定介词。
如：
Zhang Jia, with whom I went to the museum yesterday afternoon, enjoyed herself very much

介词+关系词

1）介词后面的关系词不能省略。
2）that前不能有介词。
3） 某些在从句中充当时间，地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。
This is the house in which I lived two years ago.
This is the house where I lived two years ago.
Do you remember the day on which you joined our club?
Do you remember the day when you joined our club?