“介词＋关系代词”中介词的选用，本文主要内容关键词为：介词论文,代词论文,关系论文，此文献不代表本站观点，内容供学术参考，文章仅供参考阅读下载。
在学习定语从句时，“介词＋关系代词”引导的定语从句是一个难点，难在何处？感到茫然的同学主要是不知道该选用什么介词。而介词的选用是有一定规律的，同学们只要掌握了这些规律，解题时就可迎刃而解，举一反三了。
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．