which引导的定语从句

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定语从句------关系代词

指人，在从句中做主语

(1)TheboyswhoareplayingfootballarefromClassOne.

(2)YesterdayIhelpedanoldmanwholosthisway.

指人，在定语从句中充当宾语，常可省略。

(1)heperson(whom)youtalkedabout.

注意：关系代词whom在口语和非正式语体中常用who代替，可省略。

(3)Themanwho/whomyoumetjustnowismyfriend.

指物，在定语从句中做主语或者宾语，做宾语时可省略

(1)Footballisagamewhichislikedbymostboys.(which在句子中做主语)

(2)Thisisthepen(which)heboughtyesterday.(which在句子中做宾语)

指人时，相当于who或者whom；指物时，相当于which。

在宾语从句中做主语或者宾语，做宾语时可省略。

(5)Thepeoplethat/whocometovisitthecityareallhere.(在句子中做主语)

(6)Whereisthemanthat/whomIsawthismorning?(在句子中做宾语)

通常指人，也可指物，在定语从句中做定语

(1)Hehasafriendwhofatherisadoctor.

(2)Ilivedinahouwhoroofhasfallenin.

who指物时，常用以下结构来代替

(3)Theclassroomwhodoorisbrokenwillsoonberepaired.

=Theclassroomthedoorofwhichisbrokenwillsoonberepaired.

(5)Doyoulikethebookwhocolorisyellow?

=Doyoulikethebookthecolorofwhichisyellow?