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定语从句定语从句TheAttributiveClauseTheAttributiveClause定语从句：修饰一个名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。关系词：引导定语从句的关联词成为关系词关系词有关系代词和关系副词。关系代词有that,which,who,whom,whose,as等；关系副词有where,when,why等。Jointhefollowingsentences:Aplaneisamachine.Themachinecanfly.先行词和关系词的关系Jointhefollowingsentences:Aplaneisamachine.Themachinecanfly.Aplaneiscanfly.关系代词的实质themachineamachineJointhefollowingsentences:Aplaneisamachine.Themachinecanfly.Aplaneiscanfly.关系代词的实质amachinethat/which关系词先行词Thisisabook.Thecoverisred.Thisisabookwhosecoverisred.Thisisabookthecoverofwhichisred.关系代词的实质Jointhefollowingsentences:ThegirlisMary.Wesawheryesterday.Thegirl(who\whom\that)wesawyesterdayisMary.1.引导定语从句。2.代替先行词。3.在定语从句中担当一个成分。关系词3个作用：1.Thisisthetown.Iwasborninthetown.2.Wewillneverforgettheday.Iwasbornontheday.3.Thisisthereason.Iwaslateforschoolforthereason.Thisisthereason(that\which)heexplainedatthemeeting.ThisisthetownwhereIwasborn.WewillneverforgetthedaywhenIwasborn.Thisisthereasonwhy\forwhichIwaslateforschool.1.Thisisthereason.heexplainedthereasonatthemeeting.关系代词用法关系代词指代在从句中的作用thatwhichwhowhomwhose(=ofwhich)人／物主／宾主／宾主／宾宾定人人人／物物关系副词的用法关系副词指代在从句中的作用when(=at/in/on/duringwhich)where(=in/atwhich)why(=forwhich)时间时间状语地点地点状语原因原因状语Practice1.Theman______________istalkingtomeisafriendofmyfather’s.2.Theschool__________________isfamousherehasalonghistory.3.Iliveinthehouse_________windowsfacesouth.4.Heistheboy________wearewaitingfor.that/whothat/whichwhosewho/whom5.Iwillneverforgettheday__________wewereinthecountry.6.Thisisthepark_________youtookphotoslastSunday.7.Thatwasthereason________hewaslateforschool.whenwherewhy比较下列句子1.Thisisthefactory_____wevisitedyesterday.1.Thisisthefactory_____myfatherworkedlastyear.2.Iwillneverforgettheday______Iwasborn.2.Iwillneverforgettheday______wespenttogetherlastyear.Which\thatwherewhenWhich\that只能用that的情况：1先行词被最高级、序数词修饰时；2先行词有all,only,very,last,few,little,much,none,some,any,every,no等修饰时；3先行词是all,anything,everything,something,nothing时；4先行词既有人,又有物；5由who和which提问的句子；6主句是Therebe结构时.2.Thefirstlesson_______Ilearnedwillneverbeforgotten.先行词被序数词或形容词的最高级修饰。that1.All________wehavetodoistopracticeeveryday.先行词是不定代词all,few,little,much,something,nothing,anything等。thatWhatwehavetodoistopracticeeveryday.2.Thefirstlesson_______Ilearnedwillneverbeforgotten.先行词被序数词或形容词的最高级修饰。that3.Ihavereadallthebooks________yougaveme.先行词被theonly,thevery,thesame,thelast,just,all,any,every,few,little,no,some等修饰。that4.Theytalkedofthingsandpersons__________theyrememberedintheschool.先行词既有人又有物时。that5.Whoistheboy________washerejustnow?当主语是以who开头的特殊疑问句时，定语从句须用that，以免与先行词重复。that只能用which的情况：1.介词提到关系代词前Thecityinwhichshelivesisfaraway.Thecitywhich\thatshelivesinisfaraway.2.引导非限制性定语从句IamreadingHarryPorter,whichisaninterestingbook.3.整个句子是先行词，从句前面往往有逗号。Hefailedintheexam,whichmadehisparentsangry.Correctthesentences:1.I’musingthepenwhichheboughtityesterday.2.Isthatfactorywhichyourfatheronceworkedin?Isth...