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高中定语从句详细讲解（一）定义及相关术语1．定语从句：修饰某一名词或代词的从句叫定语从句。定语从句一般紧跟在它所修饰的先行词之后。2．先行词：被定语从句修饰的词叫先行词。3．关系词：引导定语从句的词叫关系词。关系词有关系代词和关系副词。关系代词有that,which,who,whom,whose,as等；关系副词有when,where,why等。关系词通常有下列三个作用：A、引导定语从句；B、代替先行词；C、在定语从句中担当一个成分。例如：Themanwhoisshakinghandswithmyfatherisapoliceman.该句中，whoisshakinghandswithmyfather是定语从句，修饰先行词theman，“who”是引导定语从句的关系词，代替先行词theman，在定语从句中作主语。（二）关系代词引导的定语从句1．who指人，在定语从句中作主语。TheboyswhoareplayingfootballarefromClassOne.正在踢足球的男孩是一班的。Thosewhowanttogotothemuseummustbeattheschoolgateat7tomorrowmorning.想去博物馆的人必须在明晨7点到大门口集合。YesterdayIhelpedanoldmanwhohadlosthisway.昨天我帮助了一位迷路的老人。Thatistheteacherwhoteachesusphysics.那就是教我们物理的老师。2．whom指人，在定语从句中做宾语，常可省略。Mr.Liuistheperson(whom)youtalkedaboutonthebus.刘先生就是你们在公共汽车上谈论的那个人。LiMingisjusttheboy(whom)Iwanttosee.李明正是我想要见的男孩。Theprofessor(whom)youarewaitingforhascome.你正在等的教授已经来了。Thegirl(whom)theteacheroftenpraisesisourmonitor.老师经常表扬的那个女孩是我们的班长。注意：关系代词whom在口语或非正式文体中常可用who来代替，也可省略。Theman(whom/who)youmetjustnowismyoldfriend.3．Which指物，在定语从句中做主语或宾语，做宾语时常可省略。Footballisagamewhichislikedbymostboys.足球是大多数男孩所喜欢的运动。Thefactorywhichmakescomputersisfarawayfromhere.制造计算机的那家公司离这儿很远。Helikestoreadbookswhicharewrittenbyforeignwriters.他喜欢外国作家写的书。Thehousewhichisbythelakelooksnice.湖边的那幢房子看上去很漂亮。Thisisthepen(which)heboughtyesterday.这是他昨天买的钢笔。Thefilm(which)theywenttoseelastnightwasnotinterestingatall.他们昨晚看的电影一点意思也没有。4．That指人时，相当于who或whom；指物时，相当于which.。在定语从句中作主语或宾语，作宾语时常可省略。Thenumberofpeoplethat/whocometovisitthiscityeachyearreachesonemillion.每年来参观这座城市的人数达一百万。Whereisthemanthat/whomIsawthismorning?我今天早上看到的那个人在哪儿？Thepersonthat/whomyouintroducedtomeisverykind.你介绍给我的那个人很友好。Theseasonthat/whichcomesafterspringissummer.春天以后的季节是夏季。YesterdayIreceivedaletterthat/whichcamefromAustralia.昨天我收到了一封来自澳大利亚的信。5．Whose通常指人，也可指物，在定语从句中做定语。Ivisitedascientistwhosenameisknownalloverthecountry.我拜访了一个全国知名的科学家。Hehasafriendwhosefatherisadoctor.他有一个爸爸当医生的朋友。Ioncelivedinthehousewhoseroofhasfallenin.我曾经住在那幢屋顶已经倒塌了的房子里。注意：指物时，常用下列结构来代替：Theclassroomwhosedoorisbrokenwillsoonberepaired.Theclassroomthedoorofwhichisbrokenwillsoonberepaired.Doyoulikethebookwhosecoverisyellow?Doyoulikethebookthecoverofwhichisyellow?（三）“介词+关系代词”引导的定语从句关系代词在定语从句中作介词宾语时，从句常常由“介词+关系代词”引出。Theschool(which/that)heoncestudiedinisveryfamous.Theschoolinwhichheoncestudiedisveryfamous.他曾经就读过的学校很出名。TomorrowI’llbringherethemagazine(which/that)youaskedfor.TomorrowI’llbringherethemagazineforwhichyouasked.明天我将把你要的杂志带来。Thisistheboy(whom/who/that)Iplayedtenniswithyesterday.ThisistheboywithwhomIplayedtenniswithyesterday.这是我昨天跟他打台球的男孩。We’llgotohearthefamoussinger(whom/who/that)wehaveoftentalkedabout.We’llgotohearthefamoussingeraboutwhomwehaveoftentalked.我们将去听那位我们经常谈论的著名歌唱家演唱。ThemanagerwhosecompanyIworkinpaysmuchattentiontoimprovingourworkingconditions.ThemanagerinwhosecompanyIworkpaysmuchattentiontoimprovingourworkingconditions.我工作的那家公司的经理十分注意改善我们的工作条件。注意：１．含有介词的短语动词一般不拆开，介词仍放在短语动词的后面。如：lookfor,lookafter,takecareof等。Thisisthewatch(which/that)Iamlookingfor.(正)这是我正在找的手表。ThisisthewatchforwhichIamlooking.(误)Thebabies(whom/who/that)thenurseislookingafterareveryhealthy.(正)那个保姆照看的小宝宝们都很健康。Thebabiesafterwhomthenurseislookingareveryhealthy.（误）２．若介词放在关系代词前，关系代词指人时只可用whom，不可用who,that；关系代词指物时只可用which，不可用that。关系代词是所有格时用whose。Themanwithwhomyoutalkedjustnowismyneighbor.(正)你刚才跟他谈话的那个人是我的邻居。Themanwiththat/whoyoutalkedjustnowismyneighbor.(误)TheplaneinwhichweflewtoCanadawasreallycomfortable.(正)我们去加拿大所乘坐的飞机实在很舒服。TheplaneinthatweflewtoCanadawasreallycomfortable.(误)３．“介词+关系代词”前还可有some,any,none,all,both,neither,many,most,each,few等代词或者数词。如：Heloveshisparentsdeeply,bothofwhomareverykindtohim.他深深地爱着他的父母，他们俩待他都很好。Inthebaskettherearequitemanyapples,someofwhichhavegonebad.篮子里有好些苹果，有些已经坏了。Therearefortystudentsinourclassinall,mostofwhomarefrombigcities.我们班总共有４０个学生，大多数来自大城市。Uptonow,hehaswrittentenstories,threeofwhichareaboutcountrylife.迄今为止，他写了１０部小说，其中３部是关于农村生活的。词＋关系代词引导的定语从句特例1)......，...of+关系代词。2)which代替this/that/the（四）关系副词引导的定语从句1．when指时间，在定语从句中作时间状语。IstillrememberthedaywhenIfirstcametothisschool.我仍然记得我第一次来到这所学校的那一天。Thetimewhenwegottogetherfinallyarrived.我们团聚的时刻终于到了。October1,1949wasthedaywhenthePeople’sRepublicofChinawasfounded.1949年10月1日是中华人民共和国成立的日子。Doyouremembertheyearswhenhelivedinthecountrysidewithhisgrandparents.你还记得在农村和你祖父母一起生活的那些年吗？2．where指地点，在定语从句中作地点状语。ShanghaiisthecitywhereIwasborn.上海是我出生的城市。ThehousewhereIlivedtenyearsagohasbeenpulleddown.我十年前住的房子已经被拆掉了。Ivisitedthefarmwherealotofcowswereraised.我参观了那个饲养了许多奶牛的农场。Isthistheplacewheretheyfoughttheenemy?这是他们当初打敌人的地方吗？3．why指原因，在定语从句中作原因状语。Pleasetellmethereasonwhyyoumissedtheplane.请告诉我你误机的原因。Thereasonwhyhewaspunishedisunknowntous.他受惩罚的原因我们都不知道。Idon’tknowthereasonwhyhelooksunhappytoday.我不知道他今天为什么看上去不愉快。注意：关系副词引导的定语从句经常可以用“介词+关系代词”引导的定语从句来表示。如：Fromtheyearswhen/inwhichhewasgoingtoprimaryschoolinthecountryhehadknownwhathewantedtobewhenhegrewup.自从他在农村读小学时，他就已经知道长大后要做什么。Greatchangesaretakingplaceinthecitywhere/inwhichtheylive.他们生活的城市正发生巨大的变化。Thereasonwhy/forwhichherefusedtheinvitationisquiteclear.他为什么拒绝接受邀请的原因是十分明了的。（五）限制性定语从句和非限制性定语从句限制性定语从句形式上：不用逗