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1、“介詞+關(guān)系詞”的用法1、關(guān)系代詞在從句中作介詞的賓語時，介詞?？梢蕴崆?，但介詞提前時，關(guān)系代詞只能用which 或 whom。如：The school (that/which) he once studied in is very famous.The school in which he once studied is very famous.Tomorrow I will bring here a magazine (that/which) you asked for.Tomorrow I will bring here a magazine for which you asked.We

2、ll go to hear the famous singer (whom/that/who) we have often talked about.Well go to hear the famous singer about whom we have often talked.2、關(guān)系副詞when, where, why 和介詞+which之間的關(guān)系。關(guān)系副詞when, where, why可以用適當(dāng)?shù)慕樵~+which來替代。介詞的位置非常靈活，有時放在關(guān)系代詞之前，有時放在動詞之后。如：when=in/on/at+which, where=in/on/at+which, why=for+

3、which如：I wont forget the date when( on which) I was born.This is the room where (in which) I lived. = This is the room which I lived in.I dont know the reason why (for which) he hasnt come today.Tom still remembers the days when (in which) they lived in Tianjin. 注意：1). 含有介詞的動詞短語一般不拆開使用，如：look for, l

4、ook after, take care of等如：This is the watch which/that I am looking for. () This is the watch for which I am looking. (F)2). 若介詞放在關(guān)系代詞前，關(guān)系代詞指人時用whom，不可用who或者that；指物時用which，不能用that；關(guān)系代詞是所有格時用whose如：The man with whom you talked is my friend. () The man who/that you talked with is my friend. (F) The pl

5、ane in which we flew to Canada is very comfortable. ()The plane in that we flew in to Canada is very comfortable. (F)3).“介詞+關(guān)系代詞”前可有some, any, none, both, all, neither, most, each, few等代詞或者數(shù)詞如：He loved his parents deeply, both of whom are very kind to him. In the basket there are quite many apples,

6、some ofwhich have gone bad.There are forty students in our class in all, most of whom are from big cities.4). 把握“介詞關(guān)系代詞”結(jié)構(gòu)中介詞的選用介詞的選擇與主句中先行詞的搭配密切相關(guān)。如：That”s the reason for which he was late for school. This is the book on which I spent 8 Yuan.介詞選擇的三大規(guī)則：1. 取決于從句中的謂語動詞同介詞的搭配。（V+ pre.）如：He is the man whom I talked with this morning.2. 取決于先行詞同介詞的常規(guī)搭配。四組?？嫉拇钆洌?）extent degree （程度）同 to 搭配 2）price(具體多少錢時與at; 若指價格方面與in 搭配) speed rate 同at搭配 3）field area aspect sphere （領(lǐng)域，方面）同 in 搭配 例句：The field in which I studied in university is psychology. 4) basis ground foundation （基礎(chǔ)）同on 搭配