摘要:介词+关系代词 (1)根据动词选择介词.有些定语从句中的介词本身是从句的一部分.这样的介词可位 于关系代词前.也可位于关系代词后.如: I don't know the foreigner with whom my teacher shook hands. (或I don't know theforeignermy teacher shook hands with.) 但要注意:who和that不能直接位于介词后作宾语,有的短语动词是不能拆开的.因为这些介词存在于关系密切的固定短语中.常见的这类短语有:look for,look after等.如: This is the pencil that Ma Lili is looking for.(对) This is the pencil for which Ma Lili is looking.(错) (2)根据先行词选择介词.介词和先行之间构成习惯搭配.此时.介词一般位于关系代词之前.它和从句中的动词不存在逻辑或意义上的关系.如: He stood by the window,through which he could see what was happening outside.(the window 是介词through的逻辑宾语) (3)有时.介词+关系代词可转换为关系副词.这样的关系副词一般为when,why,where.如: This is the house in whichChairman Mao once lived. Everyome knows the reason for whichthe High Dam was built. I still remember the day on whichwe visied the temple.

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