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定语从句A、TheAttributiveClause(介词preposition、关系代词relativepronoun、关系副词relativeadverb)定语从句:在复合句中修饰某一名词或代词的从句叫
定语从句。被定语从句修饰的词叫作先行词,定语从句放在先行词的后面,定语从句可以由关系代词that、which、who(宾格whom、所有格whose)和关系副词where、when、why引导;关系代词在定语从句中作主语或宾语
,关系副词在定语从句中作状语,它们在复合句中起连接主从句的作用。一、关系词的选用1、当先行词是人时,用关系代词who、whom、that引导定语从句,如:Theforeignerwho/thatvisitedourschoolyesterdayisfromCanada.(
作从句主语,不能省略)Theperson(who/whom/that)youjusttalkedtoisMr.Green.(作从句宾语,可以省略)2、当先行词是物时,用关系代词which、that引导定语从句,如:Theyplantedthet
reeswhich/thatdidn’tneedmuchwater.(作从句主语,不能省略)Thefish(which/that)weboughtwerenotfresh.(作从句宾语,可以省略)3、当从句主语与先行词(
可以是人也可以是物)存在从属关系时,用关系代词whoseIknowtheboywhosearticleisverygood.Iliveinahousewhosewindowsfacethesouth.4、当先行词是时间时,用关系副词when(=atthattime)来引导Istillrememb
erthedaywhenIfirstcametoBeijing.5、当先行词是地点时,用关系副词where(=atthatplace)来引导Thefactorywherehisfatherworksisinthewesto
fthecity.6、当先行词为reason时,用关系副词why来引导,如:Hecouldn’tgivetheteacheragoodreasonwhyhewaslateforschool.7、先行词为地点、时间时,选用关系代词或关系副词,要看它在从句中作何种成分,如:Thisistheho
usewhereIlived(vi.不及物动词)lastyear.(在从句中作状语)Thisisthehousewhichwasbuilt(vt.及物动词)lastyear.(在从句中作主语)Nowitisautum
nwhenweheldasportsmeet.(作状语)Nowitisautumnwhichisthethirdseasonoftheyear.(which在定语从句中作主语应该使用关系代词which
或that)二、介词的提前如果定语从句中谓语动词是不及物动词,它所接的介词可以放在从句中相关动词的后面,也可以把它提到关系代词的前面,此时,先行词为人时介词后面用关系代词whom,先行词为物时,介词后用关系代词which,即:介词+关系代词(是人时用whom,是物时用which)Ik
nowtheman(who/whom/that)Jimistalkingto.=IknowthemantowhomJimistalking.Thisistheroom(which/that)Iusedtoli
vein.=ThisistheroominwhichIusedtolive.三、介词的确定“介词+关系代词(whom、which)”中的介词主要有以下三种确定方法:1、根据定语从句中的谓语动词或形容词来选用介词ThemantowhomIspokeismyteacher.(speakto)The
westlake,forwhichHangzhouisfamous,isabeautifulplace.(befamousfor)2、根据先行词来确定介词Ineverforgotthedaysdurigwhichw
elivedandworkedtogether.(duringthedays)3、根据定语从句所表达的意义来确定介词Air,withoutwhichmancan’tlive,isreallyimportant.但含有介词的短语动词一般不拆开,介词仍放在动词的后面,如:takecareof、look
for、lookafter等。四、关系代词不能用that的情况:1、介词+关系代词时,不能用thatThisistheroominwhich(不能用that)LuXunlived.2、非限制性定语从句Hehasadaughter,who(不能用that)worksinahospita
l.3、先行词是that时,为了避免重复,不用thatTheclockisthatwhich(不能用that)tellsthetime.五、关系代词宜用that而不用which的情况:1、定语从句的先行词同时有人又有物时,
如:Theytalkaboutthepersonsandthingsthattheyrememberintheolddays.2、先行词是theone、all、much、little、few、none、everything、anythi
ng、nothing等不定代词时,如:IsthereanythingelsethatIcandoforyou?Imeantheonethatwasboughtyesterday.3、先行词是数词时,如:Lookattheseflowers
.Youcanseethetwothatyougaveme.4、先行词被序数词(含last)或形容词最高级修饰时,如:ThisisthelastlessonthatMr.Greentaughtus.Itisthemostimportanttaskt
hatshouldbefinishedsoon.5、先行词被all、no、only、oneof、some、any、few、little、much、very等修饰时,如:Ihavereadallthebooksthatyoulentme.6、先行词在主
句中作表语或关系代词在从句中作表语,该关系代词要用that,而不用which,如:Itisabookthatwillhelpyoualot.Myhometownisnolongertheplacethatitusedtobe.7、先行词是who、which开头时,为了避免重复,如
:Whoisthemanthatshookhandswithyoujustnow?Whichisthebookthatyouwanttoborrowfromme.六、以as引导的定语从句1、引导限制性定语从句,用于such…as…;thesame…as…;a
smany/much…as…结构中:Suchbooksasyouboughtareuseless.Asmanymembersaswerepresentagreedtotheplan.Ilovesuchpeopleasloveme.2、引导限制性定语从句,as=which/thatis,如:E
nglishasspokeninAustraliaisslightly(轻微的)differentfromBritishEnglish.3、引导非限制性定语从句,说明整个主句;从句的位置可以在主句前、主句中或主句后,常用逗号与主句隔开。(which引导非限制性定语从句不能放于句首)
Asisoftenthecase(情况),Marywaslateforschool.Asweallknow,lighttravelsmuchfasterthansoundintheair.七、以but引导的定语从句,but=who…
not…或that…not…,如:Thereisnomanbutwouldbesurprisedatthenews.=Thereisnomanthatwouldn’tbesurprisedatthenews.T
hereisnoonebutwishespeace.=Thereisnoonethatdoesn’twishpeace.八、限制性定语从句与非限制性定语从句1、限制性定语从句是先行词在意义上不可缺少的定语,如果去掉,主句的意思就不完整或失去意义。主从句一般不用逗号隔开,如:Heisamanwh
ocanhelpme.Howdoyouapologisetoyourfriendwhosebikeyoulost?2非限制性定语从句和主句的关系不十分密切,只是对先行词作些附加说明,如果去掉主句的意思仍然很清
楚,主从句一般用逗号隔开,如:LiLei,whosefatherisaworker,ismybestfriend.Lijiang,whereIwasborn,isverybeautiful.九、补充说明材料:1、系表结构=连系动词+表语(即连系动词后面的成分,adj.或n.或介词短
语等)2、连系动词:A、be动词(am、is、are)表达“是”的意思时,如:Heisastudent.B、感官动词(look、seem、taste、smell、feel等),如:Ifeelcold.C、表示变化的词(get、turn、become、go等),如:Hebecameourmonito
rlastterm.D、表示状态的词(keep、stay、remain等),如:Foralongtime,thelanguageinAmericastayedthesame.十、关系副词=介词+关系代词Thisisther
oomwhereshedidherhomework.=Thisistheroominwhichshedidherhomework.1958wastheyearwhenSpielbergmadehisfirstrealfilm.=1958wasth
eyearinwhichSpielbergmadehisfirstrealfilm.