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1、定语从句一.概念:由关系词引导并用来修饰名词,代词,名词性词组或整个句子的句子叫做定语从句,被修饰的对象叫做先行词。1.HetoldthegoodnewstoMarry.Marrytoldittome.2.HetoldthegoodnewstoMarryandMarrytoldittome.3.HetoldthegoodnewstoMarry,whotoldittome定语从句相当于一个形容词的功能，所以也叫做形容词性从句。它一般紧跟在先行词之后，必需有引导词（有时侯可以省略）二.分类:分为限制性定语从句和非限制性定语从句限制性定语从句与主句关系密切,是主句不
2、可缺少的部分，去掉之后主句意思不完整，不能用逗号将其和主句隔开,但引导词作宾语时可省略(介词之后的不能省略)非限制性定语从句只对先行词作附加说明，去掉之后不影响主句的意思，常用逗号将其和主句隔开,引导词无论在任何时候都不能可省略;不由that引导；他的先行词可以是一个单词，也可以是句子的主语，甚至是一个句子。不能用that或why来引导,指人的关系代词作宾语时，只能用whom，不能用who，不能省略。Thosewhocannotrememberthepastarecondemnedtorepeatit.ProfessorWhite,whosehometowni
3、sverybeautiful,willcometoourschool.Ihaveabrotherwhoisanarmyofficer.(我有一个当军官的弟弟。）Ihaveabrother,whoisanarmyofficer.我有一个弟弟，他是个军官。三.引导词,也叫关系词，在句中充当句子成分，起连接作用。先行词充当的成分关系代词who人主／宾whom人宾which物主／宾that人/物主／宾as人/物主／宾Whose(ofwhich/whom)人/物定关系副词When(=介词+which)时间词状where(=介词+which）地点词状Why（=for+wh
4、ich)原因词状填空/选择1.Imadealistofallthebooks___IwanttobuybeforeIwenttothebookstore.2.Afriendisaperson____canshareyourjoysandsorrows/happinessandsadness,nomatterwhat/whateverhappens.3.He_____(do)notreachtheGreatWallisnotatrueman.4.RecentlyIboughtanancientChinesevase,___________wasveryreaso
5、nable.A.whichpriceB.thepriceofwhichC.itspriceD.whosepriceE.thepriceofwhoseF.ofwhichtheprice●Whose+n.=the+n.+ofwhom/which=of+whom/which+the+n.只用来指人或物且只作定语，意为“……的”5.Theystayedwithmethreeweeks____theydrankallthewineIhad.A.duringwhichB.intimeofwhichC.whereD.whereverE.when6.Isthisfactory
6、____wevisitedtheotherday?A.WhereB.thatC.theoneD.inwhich7.Thisistheschool______myfatheroncelived.8.Thisistheschool______Iloveverymuch.用下列所给的定语从句填空1.whichiscalledgreenagriculture/2.whicharekeptonthefarm./3.wholiveinthenorth./4.whicharenowreadyforharvest./5.whousegreenagriculture./6.wh
7、ichhavefallenFarming__1____growsplantsinsoil.Duringspringandsummer,thefarmers___2____worklonghoursintheirfields.Inautumn,theypickthecrops__3___.Farmers__4_____cannotfarminwinter.Instead,theycarefortheanimals___5____.Thefieldslaysilentthen,hiddenbeneaththesnows__与______6____________.
8、只用that的情况1．先行词为不定代词
