sat语法要点之介词前提的问题

　　关系代词在定语从句中充当介词宾语时，介词可以前提至关系代词前。这是看属于定语从句的范畴，也就是我们今天要跟大家讲解的SAT 语法中的介词前提的问题。接下来一起来看看今天SAT考试内容：sat语法要点之介词前提的问题

　　sat语法要点之介词前提的问题

　　介词前提的问题

　　关系代词在定语从句中充当介词宾语时，介词可以前提至关系代词前。例如：Have you seen the pen (which) I wrote the note with just now? (which作介词with的宾语)→Have you seen the pen with which I wrote the note just now? 但是，要注意的是：

　　⑴介词前提后，先行词是人或物，关系代词分别只能用whom和which，而不再用that或who。

　　⑵介词前提后，关系代词不再能省略。

　　⑶有些含有介词的短语动词中的介词不能前提，如：look for, look after, take care of等。例如：错误：Who is the old man to that you were talking to? 正确：Who is the old man to whom you were talking ? 或Who is the old man (that/ whom) you were talking to? 错误：These are the sheep of which the boy took care. 正确：These are the sheep (which/that) the boy took care of.

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