定语从句(RelativeClauses)定语从句是由关系代词(who,whom,whose,which,that)或关系副词(when,where,why)所引导的相当于形容词功能的从句。定语从句本身必須具备主语和动词,有时关系代词也同时兼主语的角色。定语从句的三种形式定语从句:关系代词+主语+动词Janehasateacherwhomsherespects.定语从句“whomsherespects”:主语she,动词respects,关系whom。定语从句具有形容词功能,它用来修饰先行词ateacher。Ilikethewatchthatmyfathergaveme.定语从句“thatmyfathergaveme”:主语myfather,动词gave,关系代词that。定语从句具有形容词功能,它用来修饰先行词thewatch。定语从句:关系副词+主语+动词Irememberthedaywhenwefirstmet.定语从句“whenwefirstmet”:主语we,动词met,关系副词when(副词first)。定语从句具有形容词功能,它用來修饰先行词theday。ThatwasanotherreasonwhyIthoughtthiscouldendreallybad.定语从句“whyIthoughtthiscouldendreallybad”:主语I,动词thought,关系副词why。定语从句具有形容词功能,它用來修饰先行词anotherreason。定语从句:关系代词+动词IhaveanauntwhoteachesEnglishatmyschool.定语从句“whoteachesEnglishatmyschool”:主词who,动词teaches,关系代词who。定语从句具有形容词功能,它用來修饰先行词anaunt。Hehasadogwhichbarksloudlyatnight.他有一只狗晚上吠叫很大声。定语从句“whichbarksloudlyatnightl”:主词which,动词barks,关系代词which。定语从句具有形容词功能,它用來修饰先行词adog。限定性(restrictive)和非限定性(non-restrictive)定语从句。定语从句有限定性(restrictive)和非限定性(non-restrictive)两种用法。限定性定语从句用來限定或修饰先行词,前面通常不加逗号(,)。who,whom,whose,which,that均可用于限定性的定语从句。限定性定语从句含有句子的重要信息,拿掉限定性定语从句,句子的意思会有重大的改变。Ilikethepaintings.我喜欢那些油画。哪些油画?我们无法清晰地表达。Ilikethepaintingsthathanginourlivingroom.我喜欢那些挂在我们客厅里的油画。利用定语从句来限定或修饰paintings,它给了我们重要的信息来描述那些油画。非限定性定语从句用来补充或附加说明先行词,前面通常有逗号(,)。拿掉非限定性定语从句,句子的意思不会有重大的改变。非限定性的关系代词不能省略。关系代词that不能用于非限定性的定语从句。Teresa,whoisgoodatEnglish,isthinkingaboutstartingacramschool.Teresa,她英文好,正在考虑创办补习班。非限定性定语从句“whoisgoodatEnglish”前面要有逗号(,),关系代词who不能省略。Thearticle,whichappearedtodayinChinaDaily,isveryinteresting.这篇文章,出现在今天的中国日报,是很有趣的。非限定性定语从句“whichappearedtodayinTaipeiTimes”用来补充或附加说明先行词article,关系代词which不能省略。他的女友,是个出色的厨师,想开一家餐馆。Hisgirlfriend,thatisanexcellentcook,isthinkingaboutopeningarestaurant.Hisgirlfriend,whoisanexcellentcook,isthinkingaboutopeningarestaurant.关系代词that不能用于非限定性的定语从句。非限定性定语从句使用ofwhom,ofwhose或ofwhich......,allbotheachmanymostnonesome+of+whomwhosewhich比较下面的一些句子:Andyhastwosisters.Bothofthemareteachers.Andyhastwosisters,bothofwhomareteachers.Andy有两个姐姐。两人都是教师。第一个句子是由两个单句所组成;第二个句子则是带有关系代词whom的复合句。注意:第一个句子Both前面是个句号(.),而第二个句子both前面是个逗号(,)。Mike有两个哥哥,他们两人都为政府工作。Mikehastwobrothers,bothofthemworkforthegovernment.Mikehastwobrothers,bothofwhomworkforthegovernment.两个单句不能用逗号隔开,关系代词whom在此扮演着代词和连词两种角色。Therearemanystudentsinthisclassroom.SomeoftheirmothersarefromSoutheastAsia.Therearemanystudentsinthisclassroom,someofwhosemothersarefromSoutheastAsia.这个教室里有很多学生,有些学生的母亲是来自东南亚。第一个句子是由两个单句所组成;第二个句子则是带有关系代词whose的复合句。Ireadthreebookslastweek.Noneofthemwereenjoyable.Ireadthreebookslastweek,noneofwhichwereenjoyable.上周我读了三本书,沒有一本是让人喜欢的。第一个句子是由两个单句所组成;第二个句子则是带有关系代词which的复合句。书表事物不是人,故用which,不用whom。这个球队,许多球员来自北京,今年夺得冠军。Theteam,manyoftheirplayerscomefromBeijing,wonthechampionshipthisyear.Theteam,manyofwhoseplayerscomefromsouthernTaiwan,wonthechampionshipthisyear.关系代词whose代替先行词Theteam,并引导定语从句与主句“Theteamwonthechampionshipthisyear”连结。Beijing’spursuitofsovereigntyovertheislandsoftheSouthChinaSea,mostofthemarealsoclaimedbyothercountries,hasflungChina’sneighborsintothearmsoftheUnitedStates.Beijing’spursuitofsovereigntyovertheislandsoftheSouthChinaSea,mostofwhicharealsoclaimedbyothercountries,hasflungChina’sneighborsintothearmsoftheUnitedStates.关系代词which代替先行词theislands。•考点四十八关系词的选择•【真题再现】•1.Asachild,Jackstudiedinavillageschool,________isnamedafterhisgrandfather.•A.whichB.where•C.whatD.that•答案与解析:A定语从句在逗号之后,可判断为非限制性定语从句。先行词avillageschool在定语从句中作主语,因此用关系代词which,故选A项。•2.InChina,thenumberofcitiesisincreasing________developmentisrecognizedacrosstheworld.•A.whereB.which•C.whoseD.that•答案与解析:Cwhose在此引导定语从句,并在从句中作定语,先行词为cities,whosedevelopment相当于thedevelopmentofthecities。•3.Thegirlarrangedtohavepianolessonsatthetrainingcentrewithhersister________shewouldstayforanhour.•A.whereB.who•C.whichD.what•答案与解析:A句意:这个女孩被安排与她姐姐一起在培训中心上钢琴课,在那儿她愿意待上一个小时。where引导限制性定语从句,修饰atthetrainingcentre。•4.I'vebecomegoodfriendswithseveralofthestudentsinmyschool________ImetintheEnglishspeechcontestlastyear.•A.whoB.where•C.whenD.which•答案与解析:Awho引导定语从句,修饰先行词students。句意:我与好几位去年在英语演讲比赛中结识的同校同学成了好朋友。•5.—CanyoubelieveIhadtopay30dollarsforahaircut?•—Youshouldtrythebarber's________Igo.It'sonly15.•A.asB.which•C.whereD.that•答案与解析:Cwhere引导限制性定语从句并在从句中充当地点状语,定语从句修饰先行词thebarber's,即我去的那个理发店。•6.Childrenwhoarenotactiveor________dietishighinfatwillgainweightquickly.•A.whatB.whose•C.whichD.that•答案与解析:Bwhose引导定语从句,和前面的who引导的定语从句并列,共同修饰先行词children,并且whose在从句中作定语,修饰diet。•7.That'sthenewmachine________partsaretoosmalltobeseen.•A.thatB.which•C.whoseD.what•答案与解析:C代替指物的先行词thenewmachine,且在从句中作定语,所以用whose。句意:那是台新机器,它的零件小得都看不到。•8.StephenHawkingbelievesthattheearthisunlikelytobetheonlyplanet________lifehasdevelopedgradually.•A.thatB.where•C.whichD.whose•答案与解析:B句意:StephenHawking认为地球不可能是唯一的有生命逐渐形成的星球。这是一个由where引导的定语从句,修饰先行词planet,从句中缺少地点状语,根据句意,选B项。•11.Irefusetoaccepttheblameforsomething________wassomeoneelse'sfault.•A.whoB.that•C.asD.what•答案与解析:B“thatwassomeoneelse'sfault”是定语从句,修饰先行词something,that在从句中作主语。