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定语从句定语可以由形容词、代词、数词、名词、分词、不定式、介词短语等来担任，修饰名词。(以分词、介词短语为例）例：ThegirlbehindthetreeisKate.Themandrivingtoofastwasadrunk.在英语中，修饰名词或代词的句子叫定语从句。例：ThegirlwhoisbehindthetreeisKate.Themanwhowasdrivingtoofastwasadrunk.1.定语从句的概念2.定语从句的构成要素①先行词（被修饰的名词或代词）②引导词：关系代词或关系副词注意:从句与先行词是修饰与被修饰的关系eg:Thisisthefactorywhereheworks.3.引导词——关系词的分类关系代/副词指代成分who人主语/宾语whom人宾语whose人/物定语that人/物主语/宾语/表语which事/物主语/宾语/表语as人/事/物主语/宾语/表语when时间(物)状语where地点(物)状语why原因(物)状语4.定语从句的考查方向:引导词的考查理解掌握几个区分:•①区分that和which•②区分as和which•③区分定语从句和状语从句•④区分定语从句和名词性从句•⑤区分定语从句和强调句型③先行词被theonly,thevery,thesame,thelast等词修饰。1.下面情况只用that不用which和whom:Iwatchedalltheglasseswereonthetablefalloffthetable.Theparksaretheclearestparksyoucanimagine．CornwasnottheonlyfoodwastakentoEurope．Theytalkedaboutthingsandpersonstheyremembered.Whoisthepersonyoujusttalkedwith?Thevillageisnolongertheoneitwas5yearsago.Therearemanyapplesareverydelicious.thatthat①先行词为much,little,none,someone,something等不定代词。②先行词有序数词或形容词最高级修饰。thatthat④先行词既有人也有物。that⑤以who/which开头的疑问句。that⑥先行词在主句中作表语关系词在从句中作表语时。that⑦在therebe句型中，指物只用that。that和which的区别12.下面情况不用that:Thisisthebookaboutwearetalkingnow．Tomstudieshardandisreadytohelpothers,hisparentsexpect.What’sthatisflyinginthesky?which①介词后面：which②非限性定语从句中：③当先行词本身是that时：whichthat和which的区别2which和as的区别1.Tomhasmademuchprogress,______makesmeveryhappy.3.________isoftenthecase,wehaveworkedouttheproductionplan.4._________Iexplainedonthephone,yourrequestwillbeconsideredatthenextmeeting.5.HemarriedMary,weexpected.6.HemarriedMary,wedidn’texpected.7.Let’sreadsuchbookswillmakethembetter.8.Hewillgiveyousuchinformationwillhelpyou.AsAsasasaswhichwhichas和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以作主语和宾语。但不同之处主要有两点：①as引导的定语从句可置于句首，而which不可。②as代表前面的整个主句并在从句中作主语时，常可翻译为“正如，正像”；而which常译为“这一点，这件事”③在限制性定语从句中，如果先行词被as,so,thesame,such修饰时，关系代词常用as总结：which和as的区别介词＋关系代词which/whom1.Hebuiltatelescopehecouldstudytheskies.2.Theglasses,I’llbeblind,islost.3.I’llneverforgetthedayIjoinedthearmy.4.Doyouknowthemanyoujustshookhands?5.Inthedarkstreet,therewasn’tasingleperson_________shecouldturnforhelp.6.Hewashedtenwindows,______________hadn’tbeencleanedforatleastayear.throughwhichwithoutwhichonwhichwithwhomtowhommostofwhich1.Hewaslateagain,_______casehewasblamed.2.HestayedinLondonfortenyears,__________timehepickedupsomeFrench.比较：1.Hewaslateagain,andinthatcasehe…2.HestayedinLondonfortenyears,andduringthattimehe…inwhichduringwhich1.Doyoustillrememberthedays__________wespentinQingdao?2.Doyoustillrememberthedays________wespentthesummerholidaysinQingdao?用that,when,why,where,which填空1.Iwanttoknowthedate,_______youwereborn.2.Ihaveforgottenthedate__________youtoldme.3.Doyouknowthereason________heisabsenttoday?4.Thatisthereason____________Iwanttoknow.5.Thisisthefactory________hisfatherworks.6.Thisisthefactory___________hisfatherbuilt.that/whichwhenwhenthat/whichwhywhich/thatwherethat/which1.Wehavefoundaway________isuseful.2.Theway____________heexplainedtouswasquitesimple.3.Theway_________________heexplainedthesentencestouswasnotdifficult.4.Itisajob______youcanfindsomethinginterestingandsignificant.5.Sheoftenhasnosuchoccasion____shecansparesometimeforhischildren.6.Wehavereachedapoint_____weshouldmakeanimmediatedecisionforit.7.Peopleoftenmeetsuchcases_____theyhavenoideawhattodo.that/which/不填that/inwhich/不填that/whichwherewhenwherewhere1.(2008,山东)Occasionsarequiterare____Ihavethetimetospendadaywithmykids.A.whoB.whichC.whyD.when2.(2007,陕西)Today,we’lldiscussanumberofcases______beginnersofEnglishfailtousethelanguageproperly.A.whichB.asC.whyD.where3.(2009,浙江)Ihavereachedapointinmylife____Iamsupposedtomakedecisionsofmyown.A.whichB.whereC.howD.why4.(2009,福建)It’shelpfultoputchildreninasituation______theycanseethemselvesdifferently.A.ThatB.whenC.whichD.whereDDBD温馨提示：定语从句中通常爱出现的及物和不及物动词有：vt:give;visit;spend;explain;tell;take;buy;use;make;build;have;get;devote;enjoy…vi:work;live;stay;study;remain;sit;lie;stand;exist;go;come…定语从句做题三大步骤：1.分析句子结构，找出主句和从句；2.找出先行词（即被修饰的词）；3.分析从句，缺什么就补什么。更多精彩内容，微信扫描二维码获取扫描二维码获取更多资源