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定语1.Sheisanaturalmusician.2.ababygirl3.Yourhairneedscutting.4.Doitnow,youmaynotgetasecondchance.5.thewayout/adayoff6.Shehasawishtotravelaroundtheworld.7.learningmethod8.asleepingchild9.ThisisamapofChina.10.Thecarwhichisparkedoutsideismine.2)Chuckisabusinessmanwhoisalwayssobusythathehaslittletimeforhisfriends.3)Heisasuccessfulmanagerinacompanythatsendsmailallovertheworld.4)ThelessonwecanlearnfromChuckisthatfriendsareteachers.5.ThenumberofpeoplewholearnEnglishasaforeignlanguageismorethan750million.6.Araftisasmallboatthatyoucanusetopaddledownriversandstreams.7.Ifyouwantanormalraftingtrip,chooseaquietstreamorriverthatiswideandhasfewfallentreesorrocks.先行词只能是：名词或代词。关系词的选择要看先行词在定于从句中所作的成分。关系词分为：关系代词和关系副词。关系代词有：who,whom,which,that,whose,as关系副词有：when,where,why关系词和先行词一样在定于从句中作成分。1)Iknowtheman.Themancameyesterday.Iknowthemanwho/thatcameyesterday.2)Thisistheman.Isawhiminthestreetjustnow.Thisisthemanwho/whomIsawinthestreetjustnow.3)Anorphanisachild.Hisparentsaredead.Anorphanisachildwhoseparentsaredead.Theparentsofthechildaredead.Anorphanisachildtheparentsofwhomaredead.Anorphanisachildofwhomtheparentsaredead.4)Thehouseisbeingrepaired.Itsroofwasbroken.Thehousewhoseroofwasbrokenisbeingrepaired.Theroofofthehousewasbroken.Thehousetheroofofwhichwasbrokenisbeingrepaired.Thehouseofwhichtheroofwasbrokenisbeingrepaired.1.Hisparentswouldn'tlethimmarryanyone______familywaspoor.A.ofwhomB.whomC.ofwhoseD.whose2.Onthewallhungapicture,_____colorisblue.A.whoseB.ofwhichC.whichD.its3.Theriver_____arecoveredwithtreesisverylong.A.whichbanksB.ofwhichbanksC.whosethebanksD.thebanksofwhich4.Helikestousewords_____iscleartohim.A.ofwhichthemeaningB.ofwhichmeaningC.whoseofmeaningD.meaningofwhich5.Thiskindofreferencebooksareusedforthestudentsthenativelanguage_____isnotEnglish.A.whoseB.whichC.ofwhichD.ofwhom5)Thisisthewatch.Hegavemethewatch.Thisisthewatchwhich/thathegaveme.6)Aplaneisamachine.Itcanfly.Aplaneisamachinewhich/thatcanfly.关系代词不能混用的情况：1）如果先行词是one,ones,anyone,those时，用who不用that.2)当先行词是物时，以下情况只用that不用which.①先行词前有形容词最高级或序数词修饰时Thisisthebestmethodthathasbeenusedagainstpollution.HeisthelastpersonthatIwanttosee.②先行词有人又有物时Thefilmstarandthefilmthatyoujusttalkedaboutisreallywellknown.③先行词是all,much,little,everything,anything,nothingetc.Youshoulddoallthatyoucantohelphim.④先行词前有only,very,all,little,few,no等修饰时Heistheverypersonthatyouarelookingfor.⑤如果有两个定语从句，其中一个已用了which.Thisisthefactorywhichproducesthingsthathaveneverbeenseen.⑥先行词在定语从句中作表语时Heisnolongerthemanthathewas.Sheisnolongerthelittlegirlthatsheusedtobe.3)以下情况，用which,不用that①当关系代词前有介词时ThisisthehotelinwhichIoncelived.②先行词是that时Whatisthatwhichisbrightinthesky?③如果有两个定语从句，其中一个已用了thatIwillshowyouthenovelthatIborrowedfromthelibrarywhichwasnewlyopentous.1.Who_____knowshimwouldtrusthim?A.whomB.thatC.whichD.who2.Whichofthesetrainsistheone_____goestoBeijing?A.whichB.ofwhichC.oftheseD.that3Themanandthehorse_____fellintotheriverweredrowned.A.whichB.whoC.thatD.ofwhich4.Lookatthegirlandherdog_____arecrossingthebridge.A.whichB.whoC.theyD.that5.Thereisnothingintheworld_____canfrightenhim.A.thatB.whichC.whoD.whom6.Iboughtthesamebicycle_____youhave.A.thatB.whichC.asD.it如何选择关系代词前的介词?⑴要注意介词与前面先行词的正确搭配Theearthisaball.Weliveontheearth.Theearthonwhichweliveisaball.如果on放在live后，可用that替换which.Thespeedatwhichthecartravelsis50kilometresanhour.I'llneverforgetthedayonwhichIjoinedtheParty.“介词+关系代词”引导的定语从句(2)要注意与后面动词的正确搭配Thisisanadvancedworkerfromwhomwecanlearnedalot.Theproblemaboutwhichwetalkedyesterdayisdifficulttosolve.ThePLAmanofwhomweoftenheardwillcomehere.1.Maryhassavedfiftyyuan_____she'llbuyhermotheragift.A.inwhichB.onwhichC.thisD.withwhich2.Inthatroomthatisnotwindow_____thesunlightshines.A.onwhichB.fromwhichC.throughwhichD.atwhich3.Geography_____Iknownothing,seemsverydifficulttome.A.aboutwhichB.whichC.thatD.forwhich4.Inthedarkstreet,therewasn'tasingleperson_____shecouldturnforhelp.A.thatB.whoC.fromwhomD.towhomExercises5.Thepicture_____hepaid100yuan,waslostlastnight.A.onwhichB.towhichC.forwhichD.inwhich6.Myelderbrotherboughtmeagoodnumberofbooks,many_____arewritteninEnglish.A.ofwhomB.whoseC.ofwhichD.they7.Myglasses,_____Iwaslikeablindman,felltothegroundandbroke.A.whichB.withwhichC.withoutwhichD.that8.Aharvesterisamachine_____weharvestcropsorperson_____isharvesting.A.which;whoB.that;thatC.withwhich;whoD.不填；不填关系副词when,where,whywhenI'llneverforgettheday.IjoinedtheLeagueontheday._____________________________________________________.I'llneverforgettheday__________IspentinBeijing.that/whichonwhichI'llneverforgetthedaywhen/________IjoinedtheLeague.whereThisistheroom.PremierZhouworkedintheroom.______________________________________________Thisistheroomin_______PremierZhouworked.Thisistheroom_________PremierZhouworkedin.whichwhich/thatThisistheroomwherePremierZhouworked.whyThisisthereason.Shewillnotcomeforthereason.Thisisthereasonwhyshewillnotcome.(______=_________)Thisisthereason_________hegaveforhislateness.whyforwhichwhich/that1.Thepen____hewrotetheletterhasrunoutofink.A.ofwhichB.withwhichC.forwhichD.which2.AfterlivinginPairsforfiftyy