定语从句三部曲1.找出先行词；2.确定先行词在从句中的成分：主语，宾语，状语；3.选择正确的关系词。几个关系代词的基本用法that:可指人或物；可作主语，宾语。指人时，相当于who或whom；指物时，相当于whichAletter________iswritteninpencilisdifficulttoread.()Aletterisdifficulttoread..Theletteriswritteninpencil.合并:Aletter(theletter)whichiswritteninpencilisdifficulttoread.Doyouknowthegentleman_________spokejustnow?()句1_____________________________.句2________________________________.Whatisthequestion________theyaretalkingabout?()句1__________________________.句2______________________.Hereistheman______________youwanttosee.()句1__________________________.句2________________________________.只能用that不能用which的情况1.先行词为不定代词时：all,much,everything,anything,nothing,something,none,theone.2.先行词被only,any,few,little,no,just,very,oneof等修饰时；3.先行词是序数词时或被序数词修饰时；4.先行词是最高级或被最高级修饰时；5.先行词既有人又有物时；6.先行词是数词时；(two,ten,ahundred)7.如果有两个从句，其中一个关系代词已用which,另一个关系代词宜用that，以避免重复；8.疑问词是who或which，关系代词宜用that，以避免重复；即学即用1.Thewriterandhisnovel____youhavejusttalkedaboutisreallywellknown.()2.Themostimportantthing____shouldbedonerightnowishowtostophimfromgoingon.()3.Thelastplace____wevisitedwasthechemicalworks.()4.There'snothing____canbesaidaboutit.()5.Thisisthethirdfilm____hasbeenshowninourschoolthisterm.()6.YesterdayIcaughttwofishandputtheminabasinofwater.Nowyoucanseethetwo____arestillalive()7.Whoistheman____isstandingatthegate?()8.Edisonbuiltupafactorywhichproducedthings_____hadneverbeenseenbefore.()whichwhich:指物；可作主语，宾语，表语。11.Thebook_____wasonthedeskwasboughtbymyfather.()2.Thebook_____Iboughtyesterdayisveryinteresting.()3.Thefactory_____hisfatherworksisfarfromhere.()只能用which不能用that的情况：1.介词后面只能用which；Isthistheroomin_____Mr.Whitelives?2.非限定性定语从句中。MoreandmorepeoplearebeginningtolearnEnglish,________isbecomingverypopularinourcountry.3.当关系代词后面带有插入语时；Here'stheEnglishgrammar______,asIhavetoldyou,willhelpimproveyourEnglish.4.先行词是those+复数名词.Ashopshouldkeepastockofthosegoods_________sellbest.who,whom,whosewho:主格,在从句中作主语，只可指人whom:宾格，在从句中作宾语，只可指人；whose:所属格，在从句中作定语，可指人也可指物。（whose=ofwhich或ofwhom）Ilikethestudents______workhard.All______heardthestorywereamazed.Chaplin,for______lifehadoncebeenveryhard,wasasuccessasanactor.Achild_______parentsaredeadiscalledanorphan.I'dlikearoomwhosewindowfacessouth.只能用who不能用that的情况1.先行词为anyone,anybody,those,all,one,ones,they,he,people时；Anyonewhofailedtocometothemeetingyesterdaymustgivehisreason.Hewhoknowsnothingbutpretendstoknoweverythingisindeedagood-for–nothing.2.在非限定性定语从句中；Hismother,wholoveshimverymuch,isstrictwithhim.3．在therebe开头的句子中。Hereisaboywhowantstoseeyou.WhenWhen指时间，在定语从句中作时间状语。其先行词是表时间的名词（如：time,day,week,year,month等）HecamelastnightwhenIwasout.Wewillputoffthepicnicuntilnextweek,whentheweatherwouldbebetter.when=介词+which•IstillrememberthedaywhenIfirstcametothisschool.(when=onwhich)•Hecameatatimewhenweneededhimmost.(when=atwhich)•Wewillneverforgettheyear1949,whenthePeople'sRepublicofChinawasfounded.(when=inwhich)比较•Istillremembertheday_________________mybrotherjoinedthearmy...
