初中英语宾语从句复习课件(PPT-22张).ppt

1、ObjectClauses,宾语从句专项复习,一教学任务复习宾语从句二教学重点1.宾语从句的概念2.宾语从句的引导词3.宾语从句中的语序4.宾语从句的时态变化,教学难点1.if与whether的区别2.when与if引导的宾语从句和状语从句3.宾语从句与简单句的互换,Weknowhim,WeknowhelikesEnglish.,主s,主s,谓v,谓v,宾o,宾o,宾语从句就是由一个句子来构成主句的宾语,简单句,复合句,一什么是宾语从句？,试比较,DoyouknowwhoisthefirstChineseastronaut(宇航员)?Ourteachertoldusthattheearthgo

2、esaroundthesun.Pleasetellmewhereshehasgone.Idontknowifhewillcometonight.Letsfindoutwhatsontonight.,FindouttheObjectClauses,WeareproudofthatBeijingisoneofthebiggestcitiesintheworld.,Shehopesshecanpasstheexam.TheteachertoldusTomdidnttellalie.,Ihearhewillbebackinanhour.,二.宾语从句的引导词,1.陈述句作宾语从句,由来充当引导词连接主

3、从句。,that,that,that,that,that可省略。,1)Doyouknowbookitis（这是谁的书）?2)Couldyoutellmethetrainislate（火车为什么迟到）？3)Heaskedusweleft（我们什么时候离开）.,2.特殊疑问句作宾语从句,由充当引导词来连接主从句。由连接代词who,whom,whose,which,what和连接副词where,how,why,when引导的宾语从句，这些连词既有词义又充当句子成份。,二.宾语从句的引导词,whose,why,when,特殊疑问词,1)Issheright?Iwanttoknow.Iwantknows

4、heisright.2)Canyouswim?Sheaskedme.SheaskedIcouldswim.,一般疑问句作宾语从句,由充当引导词来连接主从句。,二.宾语从句的引导词,if/whether,if/whether,if/whether,If与whether的区别,Idontknow_hewillcomeornot.Idontcareof_heishandsome.Hewondered_tostayherethenextweek.,与ornot连用只能用whether,介词后的宾语从句只能用whether,与todo不定式连用只能用whether,whether,whether,whe

5、ther,将下列问句变成陈述句。1.Canheswim?swim.2.Doeshehaveapen?apen.3.Wheredidhego?.4.Whatswrongwithyou?.5.Whathappenedtoyou?.6.Whichisthewaytothestation?.想一想为什么4，5，6语序不变？,Hecan,Hehas,Wherehewent,Whathappenedtoyou,Whatswrongwithyou,Whichisthewaytothestation,陈述语序“主语在前，谓语在后”的顺序,A.Whatishedoing?,Heaskedme_,whathewa

6、sdoing.,B.WheredoesJimgo?,Everyonewantstoknow_,whereJimgoes.,D.Whoiswaitingforher?,Pleasetellme_,whoiswaitingforher.,宾语从句要用_语序。“主语在前，谓语在后”的顺序。,陈述,C.Whoishewaitingfor?,Couldyoutellme。,whoheiswaitingfor?,练一练,四.宾语从句中时态的变化,填一填,was,is,willcook,issinging,hasbeen,wasplaying,hadlearned,1.当主句是一般现在时，宾语从句的时态不作

7、限制，我们可以根据句子的需要使用。（需要性原则）,任何时态,2.当主句是一般过去时的时候，宾语从句必须运用，从而达到主句和从句的相互一致。（呼应性原则）,1)HewillgotoHongKong.2)Heissick.3)Heisreadingabook.4)Hehasfinishedhiswork.,1)HetoHongKong.,2)Hesick.3)Heabook.4)Hehiswork.,辨一辨,wouldgo,was,wasreading,hadfinished,四.宾语从句中时态的变化,相应的过去的某一种时态,当宾语从句说明的是客观存在的事实或者是客观存在的真理时，就不用受到主句时

8、态的限制，仍用用。（特殊性原则）,Hetoldme(that),SummerisafterSpring.,Iwastold(that),thesunismuchbiggerthanthemoon.,Myparentstoldme(that),nonewsisgoodnews.,比一比,一般现在时,练一练1.IhearJim_(arrive)twodaysago.2.SheoftenasksmewhereI_(go)nextyear.,arrived,willgo,3.Whatishedoing?,Heaskedme_,whathewasdoing.,4.HecanspeakJapanese.,

9、Hesaid_,(that)hecouldspeakJapanese.,5.Lighttravelsfasterthansound.,Hesaid_,(that)lighttravelsfasterthansound.,6.Theearthgoesroundthesun.,Hesaid_,(that)theearthgoesroundthesun.,确定从句的时态(根据主句时态),主句时态,从句时态,连接前,连接后,一般现在时,时态保持不变,一般过去时,一般现在时,did,一般过去时,haddone,一般将来时,woulddo,现在进行时,was/weredoing,现在完成时,haddone

10、,练一练1.IdontknowwhatIshalldonext.(变为简单句）Idontknownext.2.Johndidntdecidewhichbookhewouldbuy.(变为简单句）Johndidntdecide.3.Canyoutellmehowtogettothebusstop?(变为复合句）Canyoutellmethebusstop?4.PleasetellLucyhowtousetheMP5.(变为复合句）CanyoutellLucytheMP5.,比一比IdontknowwhereIshouldgo.TellmehowIcandoit.Idontknowwheretog

11、o.Tellmehowtodoit.你有什么发现？结论：由连接代词和连接副词引导的宾语从句疑问词+todo的简单句。,五.宾语从句与简单句的转换,Whattodo,whichbooktobuy,howIcangetto,howshecanuse,条件：(1)主主从主(2)主宾从主,六.否定前移,Hewontgoswimming.Ithink.,Idontthink.,thathewillgoswimming.,当宾语从句表示否定的意义、主句为第一人称、动词为think、expect、believe、guess、imagine、suppose时，常将从句的否定移到主句上。,七.if/when具有

12、双重意义,1.Iwanttoknowifhe_(come)tomorrow.,Ifhe_(come).Pleasetellme.,2.Couldyoutellmewhenhe_(come)?,Pleasetakehimtoschoolwhenhe_(come).,if：引导宾语从句或条件状语从句；when：引导宾语从句或时间状语从句。当if/when引导宾语从句，根据实际情况选用时态；当if/when引导状语从句，应遵循“”原则。,willcome,comes,willcome,comes,主将从现,宾语从句三要素,that（陈述句）,ifwhether（一般疑问句）,特殊疑问词（特殊疑问句)

13、,主句为一般现在时从句可为任何时态,语序,宾语从句的语序都为陈述句语序,客观真理自然现象公式定理名言警句时态不变,七.本课小结,.Findoutthemistakesandcorrectthem.1Couldyoutellmewheredotheylive?2SheknewthatDannyisastudent.3Hetoldmethatwinterwascolderthanautumn.4Doyouknowwhocaritis?,was,is,whose,六.课堂检测,1.Couldyoutellme?A.wherethetwinswereB.wherethetwinsareCwherearethetwins2.A:Doyouknow?B:Yes,hecameherebytrain.A.whenhecamehereB.ifhewillcomehereC.whyhecamehereD.howhecamehere3.ShesayssheEnglishfortenyears.A.learnedB.haslearnedC.waslearningD.havelearned4.Theteachertoldusthattheearthround.A.wasB.isC.willbeD.