语法难点突破之五——定语从句（一）语法难点突破修饰名词和代词的成分定语:abeautifulfloweratallboybeautifultall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）Londonisthecitythat/whichhashostedthe2012OlympicGames.Londonthecityhostthe2012OlympicGames.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whenwherewhytimeplacereasonadverbialadverbialadverbial类别类别意义意义功能功能形式形式关系代词关系代词限定性限定性定语从定语从句句非限定非限定性定语性定语从句从句起限定作用。若省略，原句意义不完整。起补充说明作用。若省略，原句意义不受影响。修饰先行词修饰先行词/整个句子无逗号隔开有逗号与主句隔开有that无thatRevision2限制性定语从句与非限制性定语从句的区别作作宾语宾语时可以时可以省略省略不可以不可以省略省略Herbrotherwhoisnowasoldieralwaysencourageshertogotocollege.Herbrother,whoisnowasoldier,alwaysencourageshertogotocollege.她那当兵的哥哥总是鼓励她上大学。（隐含意思：或许不止一个哥哥）她哥哥是当兵的，他总是鼓励她上大学。Thebook(that/which)IboughtyesterdayisHarryPotterandtheOrderofPhoenix.Thebook,whichIboughtyesterday,isHarryPotterandtheOrderofPhoenix.有有thatthat，作，作宾语宾语时可以省时可以省略略不用不用that,that,作宾语时不可以省略作宾语时不可以省略我昨天买的那本书是《哈利·波特与凤凰令》1.指物时只用that或which的情况2.介词+关系代词3.Whose用法及转换形式4.as与which的区别5.指人时that与who的区别6.如何判断用关系副词还是关系代词7.定语从句中的主谓一致问题常见考点常见考点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:6.关系代词在从句中做表语1.Thisisall____Iknowaboutthematter.A.thatB.whatC.whoD.whether2.Isthereanythingelse_____yourequire?A.whichB.thatC.whoD.what3.Thelastplace_____wevisitedwastheGreatWall.A.whichB.thatC.whereD.it考点一考点一::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.Jimpassedthedrivingtest,______surprisedeverybodyintheoffice.A.whichBthatCthisD.it只用which的情况:1,逗号后面2,介词后面2.Theday______hewasbornwasJan.20,2013.A.onwhichB.thatC.whichD.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:根据从句中动词或形容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...
