专接本定语从句ppt课件.ppt

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1、定语从句什么是定语从句？1.定语从句:在主句中做定语，修饰一个名词或代词的句子。Shelivesinahousewhosewindowsfacesouth.2.定语从句二要素：先行词，引导词（关系词）3.先行词：被定语从句修饰的名词，名词词组或代词。4.引导词：连接先行词和定语从句的词。5.引导词作用：1).连接作用，引导定语从句2).代替先行词3).在定语从句中充当一定的句子成分。（=定语从句如果去掉引导词，句子是不完整的，句子缺什么成分，引导词就在从句中充当什么句子成分。先行词关系词在从句中充当的句子成分人who主语/宾语（动词/介词）人who

2、m宾语（动词/介词）物which主语/宾语/定语人或物whose定语人或物that主语/宾语（动词/介词）/表语人或物as主语/宾语/表语时间名词when时间状语地点名词where地点状语原因名词(reason)why原因状语1.关系代词在定语从句中作主语，宾语和表语；2.关系副词在定语从句中作状语(时间状语，地点状语和原因状语)3.主要考点：当先行词为表示时间、地点和原因的名词时，如何选取引导词？方法：如果该名词在定语从句中作主语，宾语和表语，用关系代词引导；如果该名词在定语从句中作状语，用关系副词引导。考点1关系代词和关系副词的选用1.That

3、istheschoolIstudiedlastyear.A.whichB.where2.ThiswastheplaceIvisitedlastyear.A.whichB.where3.ThereasonElainedidn’tturnupwasnotmadeclear.A.whyB.which4.ThereasonElaineoffereduswasnotclear.A.whyB.whichC.that5.Ineverforgetthetimewespenttogether.A.whenB.which6.NowwecanflytoTokyo.The

4、rewasatimewehadtotakeaboat.A.whenB.which关系代词who,whom,which,that可代替先行词在定语从句中作动词或介词宾语，但当介词提前置于关系代词前时，则只能用whom(先行词为人)；which(先行词为物)。1.Inthedarkstreet,therewasn’tasinglepersonshecouldturntoforhelp.A.whoB.whomC.that2.Inthedarkstreet,therewasn’tasinglepersontoshecouldturntoforhelp.A.

5、whoB.whomC.that考点2介词+关系代词引导的定语从句3.Thepoormanhasnohousehecanlivein.A.whichB.that4.Thepoormanhasnohouseinhecanlive.A.whichB.that5.Theboyneedstobetakengoodcareofisanorphan.A.whoB.thatC.whom当介词放在关系代词前面时，关系代词也可用whose(做定语修饰其后名词，与该名词一起做介词宾语。)MrSmith,inwhosedepartmentsheworked,cametos

6、eeher.“介词+关系代词”结构中介词如何选取？“介词+关系代词”结构中，介词的选取应根据定语从句的句意和固定搭配来选择。1.Therewasnotasmallhouseinthevillagehehadnotbroughtfoodandcomfort.A.whichB.whereC.towhichD.inwhich2.Thegoalshehadfoughtallhislifenolongerseemedimportanttohim.A.afterwhichB.forwhichC.atwhichD.withwhich3.Toavoidthevar

7、iousfoolishopinionsmankindisprone,nosuperhumangeniusisrequired.A.withwhichB.ofwhichC.fromwhichD.towhich介词+关系代词=关系副词？关系副词一般都等于一个适当的介词＋which，在从句中作状语。when=in/at/on/during…+whichwhere=in/at/on/…+whichwhy=for+which介词的选取？1.Doyourememberthedaywhichyoujoinedourclub？A.inB.onC.atD.durin

8、g2.Doyourememberthetimewhichwewerestudents?A.inB.onC.atD.duri