1、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
2、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: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：不用逗号“，”与主句隔开。意义上：是先行词不可缺少的定语，如删除，主句则失去意义或意思表达不完整。译法上：译成先行词的定语：“的”关系词的使用上：A作宾语时可省略 B可用that C可用who代替whom非限制性定语从句形式上：用逗号“，”与主句隔开。意义上：只是对先行词的补充说明，如删除，主句仍能表达完整的意思。译法上：通常译成主句的并列句。关系词的使用上：A不可省略 B不用that C不可用who代替whom限制性定语从
3、句举例：TheteachertoldmethatTomwastheonlypersonthatIcoulddependon.老师告诉我说汤姆是我唯一的可以依靠的人。非限制性定语从句举例：Hismother,wholoveshimverymuch,isstrictwithhim.他妈妈十分地爱他，对他要求很严格。三:关系代词引导的定语从句1who指人，在定语从句中作主语。TheboyswhoareplayingfootballarefromClassOne.正在踢足球的男孩是一班的。Thatistheteacherwhoteachesusphysics. 那就是教我们物理的老师。2whom指人，
4、在定语从句中做宾语，常可省略。MrLiuistheperson(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。 3Which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。4That指人时，相当于who或whom；指物时，
5、相当于which.。在定语从句中作主语或宾语，作宾语时常可省略。 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。5Whose通常指人，也可指物，在定语从句中做定语。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：Thecla
6、ssroomwhosedoorisbrokenwillsoonberepaired.Theclassroomthedoorofwhichisbrokenwillsoonberepaired.Doyoulikethebookwhosecoverisyellow? Doyoulikethebookthecoverofwhichisyellow?6 as 的用法:(as 引导定语从句, 在定语从句中作主语、宾语、表语)如为限制性的，多用于the same as ; the same as；such as ; as many/much as；so as等结构中。I have the same book
7、 as you (have). 我有一本和你的一样的书。 .-Why didnt you mention that in face of the police just now?- I thought it was such a minor detail as was hardly worth mentioning. 比较：Here is so big a stone as no one can lift. （定语从句） Here is so big a stone that no one can lift it.（结果状语从句）如为非限制性的，多单独引导一个定语从句，表示说话人对话语的看法态
8、度解释或评论.这种定语从句可置于句首，句中或句尾，译为正如，这一点。（动词常为know, see, expect, point out, etc.）As we all know, smoking is harmful to ones health . (as 作宾语)Smoking is harmful to ones health , as we all know .（as 作宾语）Smoking, as we all know, is harmful to one health.He was a foreigner, as I knew from his accent. (宾语, 先行词是
9、前面整个句子)注意:the same.as与the same that的区分当先行词被the same修饰时关系词既可以用as,也可以用that在表示事物时,有时两者有一定的区别.一般说来,表示同一种类多用as,表示同一事物多用that.在抽象概念上,同种类事物是没有绝对区别的,所以两个词可以换用.例如This is the same book that I used yesterday. This is the same book as I used yesterday.四:“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
10、(which/that)heoncestudiedinisveryfamous.Theschoolinwhichheoncestudiedisveryfamous.他曾经就读过的学校很出名。注意：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。lookfor,lookafter,takecareof等。Thisisthewatch(which/that)Iamlookingfor.(正)这是我正在找的手表。ThisisthewatchforwhichIamlooking.(误)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
11、可用that。关系代词是所有格时用whose。Themanwithwhomyoutalkedjustnowismyneighbour.(正)你刚才跟他谈话的那个人是我的邻居。Themanwiththat/whoyoutalkedjustnowismyneighbour.(误)“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。Inthebasketthereare
12、quitemanyapples,someofwhichhavegonebad.篮子里有好些苹果，有些已经坏了。五:关系副词引导的定语从句1when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。2where指地点，在定语从句中作地点状语。ShanghaiisthecitywhereIwasborn.上海是我出生的城市。Ivisitedthefarmwherealotofcows
13、wereraised.我参观了那个饲养了许多奶牛的农场。当现行词为point, case, age, business, degree condition occasion,situation,atmosphere, scenes等时,在定语从句作状语时,用where.例如, )1 I can think of many cases_students obviously knew a lot of English words and expressions but couldnt write a good essay. A. why B. which C. as D. where 2 Many
14、 people who had seen the film were afraid to go to the forest when they remembered the scenes_people were eaten by the tiger. A. where B. by which C. which D. that 3 He was driving so fast as to get himself into a dangerous situation _he is likely to lose the control over his car. A.which B.as C.why
15、 D.where 3why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。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
16、。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。六:限制性定语从句中只能用that引导定语从句的情况1当先行词是everything,anything,nothing(something除外),all,none,few,little,some等不定代词时，或当先行词受every,any,all,some,no,little,few,much等代词
17、修饰时。如：HaveyoutakendowneverythingthatMr.Lisaid?李老师讲的你都记下来了吗？Thereseemstobenothingthatisimpossibletohimintheworld.对他来说似乎世界上没有什么不可能的事。注意：当先行词指人时，偶尔也可用关系代词who，如：Anymanthat/whohasasenseofdutywontdosuchathing.任何有责任感的人都不会做这样的事。2当先行词被序数词修饰时。如：ThefirstplacethattheyvisitedinLondonwastheBigBen.在伦敦他们参观的第一个地方是大本
18、钟。3当先行词被形容词最高级修饰时。如：ThisisthebestfilmthatIhaveeverseen.这是我看过的最好的电影。4当先行词被thevery,theonly修饰时。如：ThisistheverydictionarythatIwanttobuy.这正是我要买的词典。Afterthefireinhishouse,theoldcaristheonlythingthatheowns.注意:当one of 修饰的现行词在定语从句中作主语时,谓语动词用复数.当the only one of修饰的先行词在定语从句中作主语是谓语动词用单数.例如He is the only one of t
19、he boys that knows me in his class. He is one of the boys that know me in his class.注意：当先行词指人时，偶尔也可用关系代词who。如：WangHuaistheonlypersoninourschoolwhowillattendthemeeting.王华是我校唯一出席会议的人。5当先行词前面有who,which等疑问代词时。如：Whoisthemanthatisstandingbythegate?站在门口的那个人是谁？WhichistheT-shirtthatfitsmemost?哪件T恤衫最合我的身？6当先行
20、词为人与动物或人与物时。如：Theytalkedaboutthepersonsandthingsthattheyrememberedatschool七:宜用which不宜用that的情况:1 关系代词前有介词时. The house in which I used to live has become a shoe shop.2 在非限制性定语从句当中,He was late for school again, which made his teacher angery.3 先行词本身就是that时. Whats that which flashed in the sky just now?八
21、:宜用who不用that的情况在限制性定语从句中，当先行词指人时，关系词可用who(m)或that，二者常可互换。 但在下列情况中，用who(m)，而不用that： (1) 当先行词是one, ones, any, few, anyone, anybody, someone, somebody, everyone, everybody等词时。如： Is there anyone who can answer this question? He was among the few who managed to live through the enemy prison camp. (2) 当先行
22、词是he, they, those, people, person等词时。如： Those who are against the proposal put up your hands.He who doesnt reach the Great Wall is not a true man.不到长城非好汉。注：在固定结构的谚语或习语中，可用he that。如： He that promises too much means nothing. 九 关系代词as和which引导的定语从句as和which引导非限制性定语从句时，其用法有相同之处，也有不同之处。具体情况是：1.as和which都可以在
23、定语从句中做主语或宾语，代表前面整个句子。如： Heishonest,as/whichwecansee.他很诚实，这一点我们看得出来。2.as引导的非限制性定语从句可以放在主句之前、主句之后，甚至还可以分割主句。which引导的非限制性定语从句只可放在主句之后。另外，as常常有“正如、正像”的含义。如： Heisfromthesouth,aswecanknowfromhisaccent.他是南方人，这一点我们从他的口音可以知道。 John,asyouknow,isafamouswriter.正如你所知，约翰是个著名作家。ZhangHuahasbeentoParismorethantentime
24、s,whichIdontbelieve.注意：当主句和从句之间存在着逻辑上的因果关系时，关系词往往只用which。如： TThesetablesaremadeofmetal,whichmadethemveryheavy.这些桌子是金属的，这使得这些桌子很重。当先行词受such,thesame修饰时，关系词常用as。如： Iveneverheardsuchstoriesashetells.我从未听过象他讲的这样的故事。 ThisisthesamedictionaryasIlostlastweek.这部词典跟我上星期丢失的一样。注意：当先行词受thesame修饰时，偶尔也用that引导定语从句，但
25、与as引导的定语从句意思有区别。如： SheworethesamedressthatsheworeatMaryswedding.她穿着她在玛丽婚礼上穿过的同一条连衣裙。 Sheworethesamedressasheryoungersisterwore.她穿着跟她妹妹所穿的一样的连衣裙。十 以theway为先行词的限制性定语从句通常由inwhich或that引导，而且通常可以省略。 Theway(that/inwhich)heansweredthequestionswassurprising.他回答这些问题的方式令人惊奇。 Idontliketheway(that/inwhich)youlau
26、ghather.我不喜欢你冲她的样子。十一 关系代词与关系副词的选择用关系代词还是关系副词引导定语从句主要看关系词在定语从句中的作用（即所担当的成分）。试比较： A.Iknowaplacewherewecanhaveapicnic.我知道一个我们可以野炊的地方。Iknowaplacewhich/thatisfamousforitsbeautifulnaturalscenery. 我知道一个以自然景色优美而闻名的地方。B.Iwillneverforgetthedayswhenwespentourholidaystogether.我永远忘不了我们一起 度假的日子。Iwillneverforgetthedaysthat/whichwespenttogether.我永远忘不了我们一起度过的日子。C.Thisisthereasonwhyhewasdismissed.这就是他被解雇的原因。Thisisthereasonthat/whichheexplainedtomeforhisnotattendingthemeeting.这就是他向我解释的没有参加会议的原因.
