2015年卫生类职称英语备考语法知识(4)
2015-01-27 09:01 来源:医学教育网
卫生类职称英语备考语法知识:关系副词引导的定语从句
关系副词引导的定语从句
关系副词可代替的先行词是时间、地点或理由的名词,在从句中作状语。
关系副词when,where,why的含义相当于“介词+ which”结构,因此常常和“介词+ which” 结构交替使用,例如:
There are occasions when(on which)one must yield.
Beijing is the place where(in which)I was born.
Is this the reason why(for which)he refused our offer?
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