AttributiveclausesAttributiveClause（定语从句）概念在复合句中，修饰某一名词或代词的从句叫做定语从句.被修饰的名词或代词叫先行词。注意：1关系代词和关系副词在定语从句中都要充当句子成分。2定语从句中的谓语动词要和先行词保持一致。3定语从句分为限制性和非限制性两种。4非限制性定语从句中的关系词不可以省略。关系词关系词的作用：1、连接作用把主句和从句连接起来2、替代作用在从句中代替在它前面的先行词3、成分作用在从句中充当一个成分Whichhouseismine?whose在定语从句中作定语，表示引导词与whose后的名词为所属关系。whose多指人，也可指物，指物时可与ofwhich互换使用。指人时可用ofwhom.DoyouknowthemanwhosenameisWangYu?→DoyouknowthemanthenameofwhomisWangYu?Marylivesinthehousewhoseroofisred.→Marylivesinthehousetheroofofwhichisred.Yesterdayshetalkedwithonewoman____husbanddiedinthataccident.A.whichB.whoseC.ofwhichD.that注意：①whom,which作介词宾语时，介词一般可放在关系代词之前，也可放在原来的位置上；但是在含有介词的动词固定词组中，介词只能放在原来的位置上。Thisisthepersonwhomyouarelookingfor.三、由that引导的定语从句。that在从句中可以指人或物，在从句中做主语或谓语动词的宾语.但不能放在介词后面作介词的宾语。Thisistheschoolinthatyouwillstudy.(×)Thisistheschoolinwhichyouwillstudy.(√)Thisistheschool(which/that)youwillstudyin.(√)★注意在下面几种情况下必须用that引导定语从句。⑴先行词是不定代词all,few,little,much,something,nothing,anything等。Allthatwehavetodoistopractiseeveryday.Somethingthatweheardwasofgreattruth.⑵先行词被序数词、thelast或形容词的最高级所修饰。ThefirstthingthatIlearnedwillneverbeforgotten.ThisisthemostinterestingfilmthatIhaveeverseen.⑶先行词被all,any,every,each,few,little,no,some等修饰。Ihavereadallthebooksthatyougaveme.⑷先行词被theonly,thevery修饰。ThisistheverypenthatIamlookingfor.HeistheonlypersonthatIwanttotalkto.⑸先行词既有人又有物时。Theytalkedofthingsandpersonsthattheyremembered.⑹当句中已有who或which时，为避免重复。WhoisthemanthatistalkingtoJohn?⑺当关系代词在定语从句中作表语时，无论先行词是人还是物，常用that引导定语从句。1）Heisnolongerthemanthatheusedtobe.四.当先行词为way时，定语从句的关系词可以有三种情况:that,inwhich或不填。(前提是从句中不缺主语或宾语）Idon’tlikethewayyoutalkedtoyourmother.（choosetheonethatisnotproperforthisblank）A.thatB.whichC.inwhichD./五在It’stime句型中，后面的从句也可以看成是定语从句，通常有下面几种句型。Itis(high/about)timethat主语+过去式Itis序数词timethat主语+谓语(现在完成时)()ItishightimethatI_______todothephysicshomework.A.goB.wentC.shallgoD.havegone()Itisthefirsttime_____hehasbeenhere.A.thatB.whenC.atwhichD.which六．oneof+复数名词+who/which/that+复数谓语