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1、Ⅲ.TheAttributiveClause(定语从句)在复合句中修饰名词或代词的从句叫做定语从句。被定语从句修饰的名词或代词叫做先行词。定语从句必须放在先行词之后，对其先行词起限定作用。ThisisTom.Tomgaveusatalkyesterday.----ThisisTomwho(that)gaveusatalkyesterday.先行词定语从句引导定语从句的关系代词有：who,whom,whose,that,which引导定语从句的关系副词有：where,when,why一、who,whom,whose引导的定语从句
2、1.who在从句中作主语，不可省略，它所引导的定语从句所修饰的先行词必须是人。e.g.Thisisthedoctorwhocameheryesterday.2.whom在从句中作宾语，它所引导的定语从句所修饰的先行词必须是人，可以省略。e.g.Theman(whom)yousawlastweekhasleftthetown.注意：在从句中作介词宾语时，介词一般可放在whom之前，也可放在原来的位置上。在含有介词的固定动词词组中介词只能放在原来的位置上。e.g.a) ThemanfromwhomIborrowedthebooki
3、sLiLei.=ThemanwhomIborrowedthebookfromisLiLei.(前句中的whom不可省略，后句中的whom可省略)b) Thegirlwhomheistakingcareofisill.(takecareof是固定词组)3.whose在从句中作定语，表示所属关系，其所修饰的先行词既可是人也可是物。e.g.Iknowthewomanwhosehusbandisadoctor.Helivesinthehousewhosewindowfacessouth.二、that,which引导的定语从句这两个代词
4、均指物，它们所引导的定语从句所修饰的先行词是物,通常情况下，它们可以互换。1.that,which在从句中作主语，不可省略。e.g.Heroisthefilmthat/whichwasdirectedbyZhangYimou.2.that,which在从句中作宾语，可以省略。e.g.Isthisthefilm(that/which)youtalkedaboutlastweek?注意：关系代词在作介词宾语时，只能用which且不能省略。e.g.Thehouseinwhichheoncelivedisameeting-room.=
5、Thehouse(which)heoncelivedinisameeting-room.知识拓展：引导定语从句的关系代词that和which，在一般情况下，尽管可以互换使用，但在下列情况下，只能用that，而不用which：1.先行词是复合不定代词everything,anything,nothing等时。e.g.Shedidn’tforgetanything(that)hermotherhadtoldhertobuy.2.先行词被序数词或thelast修饰时。e.g.Thisisthefirsttextbook(that)I
6、studiedintheprimaryschool.Heisinthelastrowthatisnexttothewindow.3.先行词被形容词最高级修饰时。e.g.Thatisthehighestbuilding(that)Ihaveeverseen.4.先行词被theonly,thevery,thesame等修饰时。e.g.Thisistheverynovel(that)youwanttoborrow.5.先行词是或被all,no,some,any,little,much等修饰时，e.g.I’vewrittendowna
7、ll(that)theteacherdoesn’tallowustodo.Theyhaven’tgotanydictionaries(that)weneed.6.先行词既包含人又包含物时。e.g.Hetoldusmanyinterestingthingsandpersons(that)wehadneverheard.7.主句是以who,which引导的特殊疑问句时。e.g.Whoistheman(that)youspoketojustnow?Whichisthebookthatwasstolenbyhim?8.先行词是主句的表
8、语或关系代词在定语从句中作表语时。e.g.Chinaisnolongerthecountry(that)itusedtobe.三、关系副词where,when,why引导的定语从句（在从句中作状语）1.where表示地点，它引导的定语从句修饰表地点的先行词。e.g.Thisi
