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《英语人教版九年级全册unit 9 Grammar Focus.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、Unit9IlikemusicthatIcandancetoSectionAGrammarFocusAttributiveClause定语从句在句中作定语,用来修饰某个名词或代词,这个名词或代词叫先行词,而定语从句位于先行词的后面。用来引导定语从句的词叫做关系词。关系词分关系代词(that,which,who,whom,whose)和关系副词(when,where,why)。关系代词引导的定语从句关系词引导定语从句,指代先行词,并在从句中作一定成分,如作主语、宾语或状语等。用来引导定语从句的关系代词有that,which,who,
2、whom,whose。本单元我们重点讲解that,who和which引导的定语从句。◆that引导的定语从句that引导定语从句时,既可以指人,也可以指物,在从句中可以作主语或宾语。Heisapersonthatdoeswhathesays.(person是先行词,that在从句中作主语不可省略)他是一个说话算数的人。ThecatthatIboughtyesterdayisill.(cat是先行词,that在从句中作宾语可省略)我昨天买的那只猫病了。◆who引导的定语从句who引导定语从句时只能指人,在从句中可以作主语或宾语。Af
3、riendwhohelpsyouwhenyouhavetroubleisarealfriend.(friend是先行词,who在从句中作主语)在你有困难时帮助你的朋友才是真正的朋友。whom也可以引导定语从句,在从句中只能作宾语,有时可以和who互换,但介词后只能用whom,不能用who。Heisthemanwho/whomIhavebeenlookingfor.=HeisthemanforwhomIhavebeenlooking.他就是我一直在找的人。◆which引导的定语从句which引导定语从句时,只能指物,在从句中可以作主
4、语或宾语。作主语时不可省略，作宾语可省略。Iwanttotakeawaythebookwhichyoushowedmeyesterday.(book是先行词,which在从句中作宾语可省略)我想带走你昨天给我看的那本书。that－既可指人也可指物，作主语不能省略；作宾语可省略。which－指物，作主语不能省略；作宾语可以省略。who－指人，作主语不能省略；作宾语可省略,（常用whom)。总结◆在由that,who和which引导的定语从句中,当它们在从句中作主语时,都不可以省略；作宾语时,都可以省略。Ilikesomefriend
5、swho/thatlikesports.关系词who/that在定语从句中作主语不能省掉。Ilikethegirlwho/whom/thatyouaretalkingto.关系词who/whom/that在定语从句中作宾语可以省掉。注意◆介词后面只能用which或whom,不能用that或whoThisisthehouseinwhichhelives.先行词是物，介词后用whichHeisamanfromwhomwecanlearn.先行词是人，介词后用whom注意Iprefershoesthatarebeautiful.（tha
6、t在从句中作主语，先行词shoes为复数，定语从句谓语动词用are）Ihaveafriendwholikessports.（who在从句中作主语，先行词friend为单数，定语从句谓语动词用第三人称单数likes）注意◆当关系代词在定语从句中作主语时,定语从句的谓语动词形式由先行词决定。Ⅰ.用that,who,which或whom填空Alicelikessingers_________writetheirownmusic.2.Generally,oldpeoplelikemusic_______isquietandgentle.3
7、.Thegirl____________youmetjustnowinthestreetismyfriend.4.Thisistheschoolin_______Istudiedtwoyearsago.5.Themanwith_______myfatheristalkingoverthereisourheadteacher.that/whothat/whichthat/who/whomwhichwhomExercises
