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1定语从句语法归纳及练习一、基本概念（一）定语从句在复合句中作定语，修饰名词或代词的从句叫定语从句。（二）先行词被定语从句所修饰的名词或代词。一般情况下，定语从句紧跟先行词。但也有因各种原因定语从句与先行词被分割的现象。（三）关系代词和关系副词定语从句的引导词。与先行词关系密切，因此紧跟先行词，并在定语从句中充当一个成分。关系代词有：who,whom,which,that和whose,另外，as也可充当关系代词。关系代词在定语从句中充当主语、宾语、表语和定语。关系副词有：when,where和why。在定语从句中充当状语。二、关系代词的用法（一）基本用法根据先行词的不同，和在从句中所充当的成分不同，选用不同的关系代词。如下表：关系词先行词从句成分例句备注关系代词who人主语，宾语Doyouknowthemanwhoistalkingwithyourmother?whom,which和that在从句中做宾语时，常可以省略，但介词提前时后面关系代词不能省略，也不可以用thatwhom人宾语Mr.SmithisthepersonwithwhomIamworkingTheboy(whom)sheloveddiedinthewar.2whose人，物定语Ilikethosebookswhosetopicsareabouthistory.Theboywhosefatherworksabroadismyclassmate.that人，物主语，宾语Aplaneisamachinethatcanfly.Sheisthepopstar(that)Iwanttoseeverymuch.which物主语，宾语Thebook(which)Igaveyouwasworth$10.Thepicturewhichwasabouttheaccidentwasterrible.as人，物主语，宾语Heissuchapersonasisrespectedbyallofus.ThisisthesamepenasIlostyesterday.as做宾语一般不省略例如：（注意关系代词在定语从句中所充当的成分）①Doyouknowtheprofessorwho/thatwillgiveusaspeechnextweek?（作主语）②Ireadareportabouthisnewnovelthat/whichwillsoonbepublished.（作主语）③Theplanthat/whichtheyarguedaboutwassettledatlast.（作宾语）④Thisisthenewsecretary(who/whom/that)Iwouldliketointroducetoyou.（作宾语）⑤Thesoldierwhoselegswerebadlywoundedwasoperatedonwithoutdelay.（作定语）注意：关系代词在定语从句中充当宾语时可以省略，充当主语时则不能。（见上例③④）（二）关系代词that代替which的一些情况which,that在代替物时，一般可以通用。但在有些情况下，只用that。⑴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。例如：①Thisisthebestthathasbeenusedagainstpollution.②Englishisthemostdifficultsubjectthatyouwilllearnduringtheseyears.3⑵先行词是序数词，或它前面有一个序数词时。例如：①Thisisthelastplace(that)Iwanttovisit.②ItisthefirstAmericanmovieofthiskindthatI’veeverseen.⑶先行词是all,much,little,something,everything,anything,nothing,none等代词时。例如：①Youshouldhandinallthatyouhave.②Wehaven’tgotmuchthatwecanofferyou.⑷先行词前面有theonly,thevery,any,few,little,no,all,much,every等修饰时。例如：①Theonlythingthatwecandoistogiveyousomemoney.②Thelittlemoney(that)hehadwasstolen.（三）宜用who,而不用that的一些情况⑴先行词是one,ones,anyone时。例如：①Onewhohasnothingtofearforoneselfdarestotellthetruth.②Don’ttellanyoneaboutthenewswhooughtn’ttoknowit.⑵先行词是those时。例如：①Thosewhowerenotfitfortheirworkcouldnotseethebeautifulclothesmadeofthemagiccloth.（四）其它情况⑴先行词既有人又有物时。例如：①Doyouknowthethingsandpersonsthattheyaretalkingabout?②Thebikeanditsriderthathadrunoveranoldmanweretakentothepolicestation.⑵主句已有疑问词who或which时。例如：①Whichisthebikethatyoulost?②Whoisthewomanthatwaspraisedatthemeeting?4（五）与whose有关的问题⑴whose是代词的所有格，它既可以代人也可以代物。例如：①Isawawomanwhosebagwasstolen.②Pleaseshowmethebookwhosecoverisred.⑵当whose表示物与物的所有格关系时，亦可用ofwhich的形式。例如：①Thebuildingwhoseroofyoucanseefromhereisanewrestaurant.→Thebuilding,theroofofwhichyoucanseefromhere,isanewrestaurant.或→Thebuilding,ofwhichtheroofyoucanseefromhereisanewrestaurant.三、介词前提的问题关系代词在定语从句中充当介词宾语时，介词可以前提至关系代词前。例如：Haveyouseenthepen(which)Iwrotethenotewithjustnow?（which作介词with的宾语）→HaveyouseenthepenwithwhichIwrotethenotejustnow?但是，要注意的是：⑴介词前提后，先行词是人或物，关系代词分别只能用whom和which，而不再用that或who。⑵介词前提后，关系代词不再能省略。⑶有些含有介词的短语动词中的介词不能前提，如：lookfor,lookafter,takecareof等。例如：①错误：Whoistheoldmantothatyouweretalkingto?正确：Whoistheoldmantowhomyouweretalking?或Whoistheoldman(that/whom)youweretalkingto?②错误：Thesearethesheepofwhichtheboytookcare.正确：Thesearethesheep(which/that)theboytookcareof.四、关系代词在从句中作主语时，从句中的主谓一致关系代词在定语从句中作主语时，从句的谓语动词在人称和数上应与先行词一致。例如：5①Whoistheguythatisreadingoverthere?②Thenumberofpeoplethataregoingtotheexhibitionisexpectedtobeover25,000.③Allthatneedstobedonehasbeendone.④Heisoneofthestudentswhousecomputeralotforstudy.⑤Timmyistheonlyoneofthepupilsthathasfailedtheexam.例③中的all意为“一切”，作单数。例⑤中没通过考试的学生事实上只有一人，因此谓语动词也用单数。that与which,who,whom的用法区别：情况用法说明例句只用that的情况1．先行词为all,everything,anything,nothing,little,much,等不定代词时。2．先行词被all,any,every,each,much,little,no,some,few等修饰时3．先行词有形容词最高级和序数词修饰时4．先行词既指人又指物时5．先行词被theonly,thevery修饰时6．句中已经有who或which时，为了避免重复时1.Hetoldmeeverythingthatheknows.2.Allthebooksthatyouofferedhavebeengivenout.3.ThisisthebestfilmthatIhaveeverread.4.Wetalkedaboutthepersonsandthingsthatweremembered.5.HeistheonlymanthatIwanttosee.6.Whoisthemanthatismakingaspeech?只用which,who,whom的情况1．在非限制性定语从句中，只能用which指代物，用who/whom指人2．在由“介词+关系代词”引导的定语从句中，只能用which指物，whom指人。3．先行词本身是that时，关系词用which,先行词为those,one,he时多用who。1.Hehasason,whohasgoneabroadforfurtherstudy.2.Ilikethepersontowhomtheteacheristalking.3.Thosewhorespectothersareusuallyrespectedbyothers.6高一定语从句专项练习(1)1.Theplace_______interestedmemostwastheChildren'sPalace.A.WhichB.whereC.whatD.inwhich2.Doyouknowtheman_______?A.whomIspokeB.towhospokeC.IspoketoD.thatIspoke3.Thisisthehotel_______lastmonth.A.whichtheystayedB.atthattheystayedC.wheretheystayedatD.wheretheystayed4.Doyouknowtheyear______theChineseCommunistPartywasfounded?A.whichB.thatC.whenD.onwhich5.Thatistheday______I'llneverforget.A.whichB.onwhichC.inwhichD.when6.Thefactory______we'llvisitnextweekisnotfarfromhere.A.whereB.towhichC.whichD.inwhich7.Greatchangeshavetakenplaceinthefactory____weareworkingsincethen.A.whereB.thatC.whichD.there8.Thisisoneofthebestfilms_______.A.thathavebeenshownthisyearB.thathaveshownC.thathasbeenshownthisyearD.thatyoutalked9.Canyoulendmethebook______theotherday?