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Grammar定语从句：修饰名词和代词的从句ThisisthebestfilmthatIhaveseen.定语从句thebestfilm先行词that关系词ThisisthebestfilmthatIhaveseen.关系词引导定语从句代替先行词在从句中担当一个成分关系词的作用1）2）3）Beijingisthecitythat/whichhasgotthechancetohostthe2008OlympicGames.Beijingthecitygetthechancetohostthe2008OlympicGames.Revision1theusageoftherelativepronoun关系代词指代在定语从句中所充当的成分人物句子主语宾语定语whowhomwhichthatwhosetheusageoftherelativeadverb关系副词指代所充当的句子成分whenwherewhytimeplacereasonadverbialadverbialadverbial1.Thisisall____Iknowaboutthematter.A.thatB.whatC.whoD.whether2.Isthereanythingelse_____yourequire?A.whichB.thatC.whoD.what3.Thelastplace_____wevisitedwastheGreatWall.A.whichB.thatC.whereD.it考点一:that与which的区别先行词为all,little,much,everything,nothing,something,anything等不定代词时，关系代词用that4.Hetalkedhappilyaboutthemenandbooks_____interestedhimgreatlyintheschool.A.whichB.thatC.itD.whom5.Thereisnodictionary_____youcanfindeverything.A.thatB.whichC.whereD.inthat6.Isoxygentheonlygas_____helpsfireburn?A.thatB./C.whichD.it7.Whichwasthehotel_____wasrecommendedtoyou?A.thatB.whichC.whereD.it先行词为人和物的组合先行词被all,little,much,every,no,等修饰时先行词被序数词或最高级修饰先行词前有序数词(thefirst),形容词最高级(thebest),thelast,thevery,theonly等时。若主句中有疑问代词who或者which，为了避免重复,关系代词不要再用who,which，而用that。1.先行词为all,little,much,everything,nothing,something,anything等不定代词2.先行词被all,little,much,every,no,等修饰时。3.先行词被序数词或最高级修饰先行词前有序数词(thefirst),形容词最高级(thebest),thelast,thevery,theonly等时。4.先行词为人和物的组合5.若主句中有疑问代词who或者which，为了避免重复,关系代词不要再用who,which，而用that。只用that的情况:考点一:that与which的区别1.Jimpassedthedrivingtest,______surprisedeverybodyintheoffice.A.whichBthatCthisD.it只用which的情况:1,逗号后面2,介词后面2.Theday______hewasbornwasAug.20,1952.A.onwhichBthatCwhichD.this考点二:介词+关系代词提醒:介词﹢关系代词引导的定语从句,关键是判断介词的选择.方法一:根据从句中动词与先行词习惯搭配方法二:根据从句中动词与先行词的逻辑关系注意：关系代词在定语从句中作介词宾语时，从句常常由“介词+关系代词”引出。此时关系代词只能用which或whom;不可用that或who代替ThemanisfromBeijingUniversity.Italkedabouthimatthemeeting.Theman(who/whom/that)ItalkedaboutatthemeetingisfromBeijingUniversity..Jointhemintoonesentence.=ThemanaboutItalkedatthemeetingisfromBeijingUniversity.关系代词紧跟在介词后面时，不能用that，也不能省略，常用which或whom。该介词通常可以放在关系代词之前，也可放在从句之尾。whom但遇固定词组时，介词一般紧跟词组主体，不作前置Isthisthebook(which/that)youarelookingfor?Fillingblanks:1.Theman__________youshookhandsjustnowisourheadmaster.2.Theroom__________myfamilyliveusedtobeagarage.withwhominwhich考点三Whose用法及转换形式1.whose引导定语从句，其后应紧跟名词，构成名词短语。That’sthechildwhosefatherisateacher.Doyouknowthewomanwhosehusbandisadoctor?Thisisabookwhosecoverisgreen.2.whose引导定语从句，其先行词不仅可以指人，还可以指物。3.whose的先行词指物时,可用ofwhich代替,但词序不同，即whose+名词=the+n+ofwhich=ofwhich+the+n.Helivesintheroomwhosewindowfacessouth.=Helivesintheroom,facessouth.=Helivesintheroom,facessouth.thewindowofwhichofwhichthewindow考点四：as与which引导的定语从句两者均可引导非限制性定语从句，有时可以互换，但下列情况多用as。1.当与such或thesame连用时，一般用as。e.g.Suchbooksasyoutellmeareinteresting.Ihavethesameplanasyou.2.as引导的从句可以放在句首,as本身有“正如…..正象…”之意，与之连用的词有know,see,expect,announce,pointout等。e.g.Asweallknow,theearthisround.1.______wasnatural,hemarriedJenny.A.WhichB.ThatC.ThisD.As2.Suchsigns_____weuseintheexperiment______Greekletters.A.as,areB.as,isC.that,areD.that,is4.______hasbeensaidabove,grammarisasetofdeadrules.A.WhichB.WhatC.ThatD.As5.Wedothesamework_____theydo.A.whichB.asC.thanD.likeAnyone_____breaksthelawispunished.Those_____breakthelawarepunished.He_____breaksthelawispunished.在anyone,those,he/she/I/they作先行词时,用”who”代替“that”.考点五:that与who的区别whowhowho考点六:如何判断用关系副词还是关系代词?选用定语从句的关系词时，需注意两点：1.先行词2.关系词在从句中充当的成分。做主语，宾语，定语用做状语用关系代词关系副词Iwillneverforgettheday_____Ifirstwenttoschool.Iwillneverforgettheday__________wespentinBeijing.Thehouse__________wevisitedisbeingrepairednow.Thehouse______Luxunoncelivedisbeingrepairednow.when(which/that)(which/that)where考点七:定语从句中主谓一致问题定语从句中的动词在人称和数方面应该与它的先行词保持一致。1.Iamnotonewho______afraidofdifficulty．2.Don’tchooseme,who_______notfitforthisjob．isam3.Thisisoneofthebestbooks_______.A.thathaveeverbeenwrittenB.thathaseverbeenwrittenC.thathaswrittenD.thathavewritten4.Sheistheonlyoneofthegirls___wellinclass.A.whichsingsB.whosingC.whosingsD.whotosing1.Isthisfactory____wevisitedlastweek?DIsthisthefactory____wevisitedlastWeek?A、whereB、thatC、towhichD、theoneB解题关键：如果是疑问句式，将其转化为陈述句式。Exercises2.Letmethinkofapropersituation_______thissentencecanbeused.A、whereB、thatC、ofwhomD、whichA先行词是situation,case,scene…时，一般用where,最佳选择则是inwhich3.Shewillneverforgettheday_____shespentinBeijing.A、whenB、whatC、whichD、whyCShewillneverforgettheday_____shestayedwithhiminBeijing.A5.Thecollegewon’ttakeanyone_____eyesightisweak.A、whoB、whoseC、ofwhomD、whichB6.Those_____totakepartinthegamewritedownyournames.A、whoB、whowantC、whowantsD、whatB7.Idon'tlikeEnglish,_____Iamnotinterested.Idon'tlikeEnglish,____grammarisdifficulttolearn.Ilikethishouse,_____doorwayisjustenoughtoget.Ilikethishouse,_____doorwayissmall.A.inwhichB.whichC.throughwhoseD.whoseADCD8.I，______yourgoodfriend,willtrymybesttohelpyouout.A、whoisB、whatisC、whatamD、whoamD9.Whichofthetwocows______youkeepproducesmoremilk?A、whichB、thatC、whatD、asB10.Hiswalkingstick,____hecan’twalk,waslostyesterday.A、thatB、withwhichC、whichD、withoutwhichD11.Whichofthetwocows______youkeepprodu