语法复习专题：定语从句

语法复习专题：定语从句定义：在复合句中作定语，修饰主句中的某一名词或代词的从句，叫做定语从句。1、功能：相当于形容词，修饰名词或代词，在句中作定语2、位置：定语从句置于被修饰词之后ThisisthebestbookthatIhaveeverread.（一）定语从句一般由关系代词和关系副词引导1、关系代词：who,whom,whose,which,that,as2、关系副词：when,where,why关系代词和关系副词必须位于从句之首，主句先行词之后，起着连接先行词和从句的作用，同时在从句中又充当句子成分。e.g.Sheisthegirlwhosingsbestofall.（关系代词who在从句中作主语）ThecomradewithwhomIcameknowsFrench.（whom在从句中作介词with的宾语）3、关系代词和关系副词的用法：1）当先行词为人时用who作主语，whom作宾语；2）当先行词为物或整个句子时用which，可作主语或宾语；3）先行词为人、物时用that，可作主语或宾语；4）whose用作定语，可指人或物；5）关系副词when（指时间，在定语从句中作时间状语，where（指地点，在定语从句中作地点状语），why（指原因，在定语从句中作原因状语）。（二）限制性定语从句与非限制性定语从句1、限制性定语从句：从句与主句关系密切，去掉从句，主句意义不完整，甚至不合逻辑。e.g.Iwastheonlypersoninourofficewhowasinvited.（去掉定语从句，意思就不完整）2、非限制性定语从句：从句对先行词关系不密切，去掉定从句，意思仍然完整。形式上用逗号隔开，不能that用引导。e.g.Tom’sfather,whoisoversixty,stillworksharddayandnight.（who引导非限制性定语从句，整个句子可分成两句来翻译）(三)使用定语从句时特别注意的几个问题1、that与which的区别。1）用that而不用which的情况：①先行词为不定代词all,anything,nothing,…；②先行词有最高级修饰，有序数词修饰；③先行词有only,very,any等词修饰；④先行词既有人又有物时。e.g.Thereisnothingthatcanpreventhimfromdoingit.没有什么能阻止他不干那件事。ThefirstplacethattheyvisitedinGuilinwasElephantTrunkHill.在桂林他们所参观的第一个地方是象鼻山。ThisisthebestfilmthatIhaveeverseen.这部电影是我看过的最好的一部。MrSmithistheonlyforeignerthatheknows.史密斯先生是他认识的唯一的外国人。2）用which而不用that的情况：①引导非限制性定语从句；②代表整个主句的意思；③介词+关系代词。e.g.Hehadfailedinthemathsexam,whichmadehisfatherveryangry.他数学考试没有及格，这使他的父亲很生气。Thisistheroominwhichmyfatherlivedlastyear.这是父亲去年居住过的房子。2.关系代词在从句中作主语时，从句的谓语动词单数还是用复数应由先行词决定。e.g.ThemanwholivesdownstairsspeaksEnglishfluently.住在楼下的那个人英语说得很流利。ThestudentswhoareinGradeThreearegoingtoclimbthehilltomorrow.3.定语从句有时不直接紧靠先行词，中间由一个定语、状语或谓语隔开。e.g.ThereisanexpressioninhiseyesthatIcan’tunderstand.4.引导定语从句的关系副词有时可以用“介词+which”来代替。e.g.October1,1949wasthedayonwhich(=when)thePeople’sRepublicofChinawasfounded.关系副词when与where、why、thatwhen指时间=in/at/on/duringwhichwhere指地点=in/at/from/whichwhy指原因=forwhich当先行词为way、day、reason、time时，可用that作关系副词。（非正式场合）Idon’tlikethewaythat/inwhich/hetalks.注意：当time/moment作先行词时，关系词可以省掉。Thisisthefirsttime(that)IhavegivenyoualessoninFrench.5.当定语从句中谓语动词是带介词或副词的固定短语动词时，短语动词的各个固定部分不要拆开。e.g.Thesickmanwhomsheislookingafterisherfather.6.介词在关系代词前，只能用which和whom，且不能省略；介词在句尾，关系代词可有which,that,whom,口语中也可用who，且可省略。e.g.Thisisthevillageinwhichhelivedwhenhewasachild.e.g.Theman(whom/who/that)youweretalkingabouthascometoschool.练习、定语从句一、把下列每对句子合并成含有定语从句的主从复合句：1.Thefanisonthedesk.Youwantit.2.Themanisinthenextroom.Hebroughtourtextbookshereyesterday.3.Themagazineismine.Hehastakenitaway.4.Thestudentswillnotpasstheexam.Theydon’tstudyhard.5.Thewomanisourgeographyteacher.Yousawherinthepark.Thefanwhich/thatyouwantisonthedesk.Themanwhobroughtourtexbookshereyesterdayisinthenextroom.Themagazinewhichhehastakenawayismine.Thestudentswhodon’tstudyhardwillnotpasstheexam.Thewomanwhomyousawintheparkisourgeographyteacher.6.Theletterisfrommysister.Ireceivedityesterday.7.Theplaywaswonderful.Wesawitlastnight.8.Thetrainwaslate.ItwasgoingtoNanning.9.Theboyismybrother.Hewashereaminuteago.10.Thetreeisquitetall.Heisclimbingit.TheletterwhichIreceivedyesterdayisfrommysister.Theplaywesawlastnightwaswonderful.ThetrainwhichwasgoingtoNanningwaslate.Theboywhowashereaminuteagoismybrother.Thetreewhichheisclimbingisquitetall.11.Hereisthegirl.Herbrotherworksinthisshop.12.That’sthechild.Wewerelookingathisdrawingjustnow.13.Thisistheboy.Hissisterisafamoussinger.14.Iwanttotalktotheboys.Theirhomeworkhaven’tbeenhandedin.15.Isthatthewoman?Herdaughterisinmyclass.Hereisthegirlwhosebrotherworksinthisshop.That’sthechildwhosedrawingwewerelookingjustnow.Thisistheboywhosesisterisafamoussinger.Iwanttotalktotheboyswhosehomeworkhaven’tbeenhandedin.Isthatthewomanwhosedaughterisinmyclass?二、根据句子意思，在第一个空白处填入介词，在第二个填入关系代词whom或which:1.Theperson________________IspokejustnowisthemanagerthatItoldyouabout.2.Thepencil________________hewaswritingbroke.3.WuDong,________________Iwenttotheconcert,enjoyeditverymuch.4.Thetwothings________________MarxwasnotsurewerethegrammarandsomeoftheidiomsofEnglish.5.Herbag,________________sheputallherbooks,hasnotbeenfound.towhomwithwhichwithwhomofwhichinwhich用适当的关系词填空：1.Istillrememberthenight_______Ifirstcametothehouse.2.I'llneverforgettheday________wemeteachotherlastweek.3.MrBlackisgoingtoBeijinginOctober,_______isthebestseasonthere.4.Iwillneverforgetthedays_______Ispentwithyourfamily.5.I'llneverforgetthelastday______wespenttogether.6.Thisistheschool______Iusedtostudy.7.Doyoustillremembertheplace_____________wevisitedlastweek?8.Doyoustillremembertheplace_______wevisitedthepaintingexhibition?9.HaveyoueverbeentoHangzhou,_____isfamousfortheWestLake?10.HaveyoueverbeentoHangzhou,______liestheWestLake?whenwhenwhichthat/whichthatwherethat/whichwherewhichwhere11.TomwillgotoShanghai,______livehistwobrothers.12.IliveinBeijing,____isthecapitalofChina.13.Therewasatime______therewereslavesintheUSA.14.Itisthethirdtime______youhavemadethesamemistake.15.Itwasinthestreet_____ImetJohnyesterday.16.Itwasabout600yearsago____thefirstclockwithafaceandanhourhandwasmade.17.Themoment_____Isawyou,Irecognized(认出)you.18.Thisistheverynovelabout____we'vetalkedsomuch.19.Thisistheway__