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1、定语从句定语从句概念:用句子修饰名词或代词的句子.(Attributiveclause)Maryisabeautifulgirl.Maryisagirlwhohaslonghair.形容词作定语句子作定语,修饰girl,叫做定语从句Everythingwastrue.wesawinthisfilmwastrue.合并为一个句子Everythingthatwesawinthisfilmwastrue.先行词关系词定语从句Maryisagirlwhohaslonghair.关系代词关系副词which,who,wh
2、om,whose,thatWhere,when，why二、用法:Thesearethetreeswhich/thatwereplantedlastyear.先行词是人关系代词:whowhomwhosethatwhich先行词是物Thesearethestudentswho/thatwonthefirstplacelastyear.Haveatry填写并指出关系代词（副词）在定语从句中的成份：1.Theman_____cametoourschoolisMr.Wang.()2.Thegirl______Imeti
3、sLucy.()3.Achild________parentsaredeadiscalledTom.()4.Ilikethebook______youboughtyesterday.()主语宾语定语宾语主语宾语定语指人whothatwhomthatwhose（ofwhom）指物WhichthatWhichthatWhose(ofwhich)指人和物thatthatwhose1.引导定语从句的关系代词如何选用定语从句的关系词1.首先分清主句和定语从句2.确定定语从句的先行词3.把先行词带回到定语从句中去，看其在
4、定语从句中做什么语法成分（主语，宾语，定语或状语）4.若先行词在从句中做主语、宾语或定语则选择关系代词，若在从句中做状语，则选择关系副词。1.who,whom,whose,that用法区别.①who,指人，作定语从句的主语或宾语.（可以省略）Themanwhoisspeakingatthemeetingisaworker.Themanisaworker.Themanisspeakingatthemeeting.分解作主语②whom，指人，作定语从句的宾语Thewoman（whom）theywantedtovi
5、sitisateacher.Thewomanisateacher.Theywantedtovisitthewoman.分解作宾语③that，指人或物，可以作定语从句的主语和宾语.Thewoman(whom/that)theywantedtovisitisateacher.可省略Themanwho/thatisspeakingatthemeetingisaworker.ThemantowhomInoddedisProfessorLi.如果介词提前，作宾语的关系代词不能省略指物，只用which指人,只用whomI
6、sthisthelibraryfromwhichyouborrowbooks?Isthisthelibrary(which)youborrowbooksfrom?Theman(whom/who)InoddedtoisMr.Li.④whose作定语从句的定语，修饰人或物.Iknowthegirlwhosemotherisateacher.分解Iknowthegirl.Thegirl’smotherisateacher.作定语2.which,that，指物which作定语从句的主语或宾语.Ilikethebook
7、(which/that)youboughtyesterday.Thisisatruckwhich/thatismadeinChina.作主语作宾语可省略3.只能用that的情况①序数词或形容词最高级修饰先行词时TomisthecleverestboythatIhaveeverknown.ThisisthefirstplaythatIhaveseensinceIcamehere.③everything,something,nothing,all,anything,little,much等不定代词作先行词时Eve
8、rythingthatwesawinthisfilmwastrue.②先行词被every,some,no,all,any,little,much等修饰时。I’vereadallthebooksthatyoulendme.④先行词被theonly,thevery,thesame,thelast修饰时。Thisistheverybookthatbelongstohim.⑤主句已有who或which时Wh
