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1、定语从句---难点突破重难点、考点关系代词that和which的用法区别介词+关系代词引导的定语从句关系代词as和which引导非限制定从的区别关系副词where表“抽象地点”的用法定语从句中的主谓一致先行词为theway的定从定从与强调句的组合关系代词that和which的用法区别难点一一、先行词是物，关系代词that/which一般可通用，但下列情况下只用that：1.先行词是最高级形容词或它的前面有最高级形容词修饰时。如：Thisisthebestthathasbeenusedagainstpollution.2.
2、先行词是序数词，或它前面有序数词修饰时。如：ItisthefirstAmericanmovieofthiskindthatI’veeverseen.3.先行词是all,much,little,something,everything,anything,nothing,none等代词时。如：Youshouldhandinallthatyouhave.4.先行词前面有theonly,thevery,any,few,little,no,all,much,every等修饰时。如：Theonlythingthatwecandois
3、togiveyousomemoney.5.先行词既有人又有物时。如：Doyouknowthethingsandpersonsthattheyaretalkingabout?6.主句的主语是疑问词which时。如：Whichisthebikethatyoulost?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。如：Edisonbuiltupafactorywhichproducedthingsthathadneverbeenseenbefore.8.当先行词在主句中作表语，而关系代词在从句
4、中作表语时。如：Myhomevillageisnolongertheplacethatitusedtobe.二、当先行词指物或前面整句话时，定从关系代词必须用which的情况：在非限制定语从句中Helenwasmuchkindertoheryoungestsonthantotheothers,which,ofcourse,madetheothersenvyhim.2.当动词短语中的介词提前时ThisisthehouseinwhichLuXunoncelived.★StephenHawkingbelievesthatthe
5、earthisunlikelytobetheonlyplanet_______lifehasdevelopedgradually.A.thatB.whichC.whereD.whoseC【解析】考查定语从句。先行词是planet，虽然被theonly修饰，但是其在定从中充当地点状语，故选where引导定从，而不是that。介词+关系代词引导的定从难点二Fillintheblankswith“prep.+which/whom”:1.Areyouinterestedinanysongs_________you’veliste
6、ned.2.Tomorrowisaparticularday_________hisdaughterwillgetmarried.3.Thisistheknife_________Iusuallycutbread.4.Wecan’tlivewithoutthesun_________wegetheatandlight.5.Thesubject_________Ericisinterestedisphysics.towhichonwhichwithwhichfromwhichinwhich6.Doyouknowthegir
7、l_________ourheadteacherisshakinghands?7.Ican’tfindmydictionary_________Ipaidover$100.8.Thisisthegoodcar_________Ispentallmymoney.9.Sheistheteacher_____________allhisstudentsshowrespect.10.Theteacher_________youhavebeenwaitingiscominginaminute.withwhomforwhichonw
8、hichto/forwhomforwhomSummary“介词+关系代词”引导的定从中，关系代词常常是which或whom。（先行词指物，用介词+which;先行词指人，用介词+whom。）介词的选用取决于定语从句谓语动词与先行词的搭配。当介词+which在定从中充当时间、地点、原因状语时，相当于关系副词when、w
