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Unit4EarthquakeTheAttributiveClauseThisisthebestfilmthatIhaveseen.从广义上说就是将定语和从句结合在一起。ThisisthebestfilmthatIhaveseen.thebestfilm先行词ThisisthebestfilmthatIhaveseen.that关系词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表所属关系whowhomwhichthatwhose引导定语从句的关系代词Themanwillsucceed.Hehasapositiveattitude.Themanwillsucceed.whohasapositiveattitudewho代替人在定语从句中作主语或宾语练习：用定语从句连成一个句子Thegirlisasinger.(定)Thegirlissittinginthecorner.Thegirlisasinger.whoissittinginthecornerwho•whom代替人在定语从句中作宾语•作宾语时whom可以省略Thisistheperson.(定)Italkedtothepersonjustnow.ThisisthepersonwhomItalkedtojustnow.ThisisthepersontowhomItalkedjustnow.whomIhavemanyfriends.(定)Isendpostcardstomyfriendsbeforetheirbirthday.•IhavemanyfriendswhomIsendpostcardstobeforetheirbirthday.•IhavemanyfriendstowhomIsendpostcardsbeforetheirbirthday.练习：用定语从句连成一个句子whomwho•which指代物,在定语从句中既可作主语也可作宾语•作宾语时which可省略Thinkingisthekey.Thekeyopensthedoorsoftheworld.Thinkingisthekeywhichopensthedoorsoftheworld.•Don’texpectpeopletodothings.(定)Youwouldn’tdothethingsyourself.Don’texpectpeopletodothingsyouwouldn’tdoyourself.(which)whichonthetopofthehillstalktothestudentlookafterthebaby先行词在从句中作宾语时,引导词可省略Pleasefillintheblanks,usingthepronounsabove.1.Thisisthebaby________________Ishalllookaftertomorrow.2.Thestudentto__________youtalkedjustnowisagoodfootballplayer.3.Myfamilyclimbedupthehillsonthetopof________wehadapicnicbefore.4.Hestilllivesintheroom________windowfacestotheeast.(who/whom/that)whomwhichwhosetheroom’swindow5.Hestilllivesintheroom___________isinthenorthofthecity.6.I’llneverforgetthedays___________wespenttogether.7．Theboy_______motherisdeadwasbroughtupbyhisfather.which/that(that/which)whosetheroomisinthenorth…1、Doyouhaveanything__youwanttosayforyourself?2、Thisistheverybook__I’mlookingfor.3、Thisisthebest__hasbeenusedagainstpollution.4、WhatisthefirstAmericanfilm__youhaveseen?5、Iknowthethingsandpersons__hereferredto.6、Whichisthebike__youlost?7、Theysecretlybuiltupasmallfactorywhichproducedthings__couldcausepollution只用that的情况1.当先行词是不定代词allmuch.little.something.everything.anything.nothing.none.theone时2.当先行词前面有only.any.few.little.no.all.very等词修饰时3.当先行词是形容词最高级或它的前面有形容词最高级修饰时4.当先行词是序数词或它前面有序数词修饰时5.当先行词既有人又有物时6.当主句的主语是疑问词who或which时7.有两个定语从句，其中一个关系代词已用which，另外一个宜用that反之，如果一个用that另一个用which只用which不用that的情况•引导非限制性定语从句时•当关系代词前有介词时•Thisisthehouseinheoncelived.•先行词是that或those时，引导词用which•Thatwhichyoutoldhimaboutiswhatwewanttoknow•例句•Myfriendshowedmeroundthetown,____wasverykindofhim.•A.whichB.thatC.whereD.it•解析：Awhich引导非限制性定语从句which1.Underthebigtreeare34students,manyofthemcomefromclasstwo.2.Mymotherhasagoodbook,whichcoverlooksterrible.3.Whoaretheyounggirlswhoarehavingdinnerintherestaurant?改错:whomwhosethat4.Sheisoneofthegirlswhoisveryinterestedinmaths.5.Tomistheonlyoneoftheboyswholikeplayingfootball.6.Whoisthegirlthatyoutalkedtoherjustnow?7.Thereisanoldwoman,thatisholdingastick.likes\arewhoProverbs：•1.Allthatglittersisnotgold.•发光的并不都是金子。•2.Hewholaughslastlaughsbest.•谁笑到最后谁笑得最好。•3.Godhelpthosewhohelpthemselves.•自助者天助。•4.Hewhoknowsothersislearned,andhewhoknowshimselfiswise.•知人者智，自知者明。Homework:•完成三维设计unit3、4的练习，下周检查