外研版英语九上Module4Unit3教案1

课题Module4GreatInventionsUnit3Languageinuse教学目标德育目标：Toknowaboutsomegreatinventions知识目标：Topracticetheuseofpassivevoice能力目标：Tocompleteataskabout“Howtoimproveinventions”重点被动语态：情态动词的被动语态：情态动词（not）+be+过去分词现在完成时——have／has+been+动词的过去分词难点情态动词的被动语态：情态动词（not）+be+过去分词现在完成时——have／has+been+动词的过去分词课型Revisionandapplication教法FormalandinteractivepracticesPartI:RevisionLanguagepractice现在完成时的被动语态：have/has（not）been+过去分词Paperandprintinghavebeenusedforages.Thebatteryhasn’tbeenchangedforacoupleofmonths.Hasitbeenpublishedyet?情态动词的被动语态：情态动词（not）+be+过去分词InformationcanbekeptonCD-ROMs.Bookscouldonlybeproducedoneatatime.Canbooksbereplacedbycomputers?Conclusion(I)当我们不知道谁是动作的执行者，或者没有必要指出谁是动作的执行者时，或者只需强调动作的承受者时，要用被动语态。被动语态：主语是动作的承受者。被动语态的构成：be+动词的过去分词一般现在时——am／is／are+动词的过去分词一般过去时——was／were+动词的过去分词情态动词——.(must／can／could／may…)+be+动词的过去分词现在进行时——be(am、is、are)+being+动词的过去分词一般将来时——willbe／begoingtobe+动词的过去分词现在完成时——have／has+been+动词的过去分词时态被动语态结构一般现在时

am/is/aredone一般过去时

was/weredone现在进行时

am/is/arebeingdone过去进行时

was/werebeingdone一般将来时

Willbedone过去将来时

Wouldbedone现在完成时

Have/hasbeendone过去完成时

Hadbeendone主动语态如何改成被动语态？1.主动语态的宾语改成被动语态的主语。2.主动语态的谓语动词改成被动语态的谓语动词。do----bedone3.注意保持时态和人称的一致。4.带双宾的谓语动词有两种改法。当把直接宾语改成主语时，谓语动词后必须加适当的介词:to/for.如：give--begivento此类动词还有：passshowsend…再如：buy---beboughtfor此类动词还有：makedrawcookmend…5.一些动词不定式在主动语态中省略to作宾语补足语，改成被动语态时，to必须还原。注:1.不及物动词（vi.)不用被动语态。如:happen、takeplace、appeardisappear…没有被动形式。**几种特殊结构unclegavemeagiftonmybirthday．----Iwasgivenagiftonmybirthday．Agiftwasgiventomeonmybirthday.oftenhearhimplaytheguitar．Heisoftenheardtoplaytheguitar注意：see,watch,hear,notice,feel,make,listento,lookat等动词/短语后作宾语补语的不定式都不带to；但改成被动语态后必须带to。Exercises1.Completethesentenceswiththecorrectformofthewords.thinkonedaybooksmay___________(place)completely.2.Mybike_____________(leave)atschool,soIhavetotakethebustoschooltoday.3.Thebattery___________________(charge)yet.HowcanIusemyrecorder.4.Papershouldnot_________(throw)away.5.Booksandothermaterialcan_____________(borrow)fromthelibrary.6.I’veboughtasecond-handMP3player—andabout1,000songshave___________(download)ontoit!7.Hasthecomputer________________(repair)yet?Ineedtowritemyarticlewithit.8.Whathave________________(turnon)?Theradio.2.Workinpairs:Completethequizquestionsandchoosethecorrectanswer.pyramids/build?----Whowerethepyramidsbuiltby?a)TheEgyptiansb)TheAncientGreeksc)TheRomans2.What/use/tomakepapersincethe19thcentury?a)Woodb)Silkc)CottonthestoryofRomeoandJuliet/set?a)InNewYorkb)InAthensc)InLondontheworld’soldestbookprintedonpaper/discover?a)InIndiab)InChina c)InEgyptlong/computers/use?a)Forlessthan50years.b)For50yearsc)Formorethan503.Makequestionsandwriteanswers.What/shouldn’t/do/withpaper?(waste)-------Whatshouldn’tbedonewithpaper?--Itshouldn’tbewasted.can/use/tomakepaper?(manythings)might/use/toreplacebooksoneday?(computers)must/printers/keep?(ingoodconditions)can/music/keep?(onMP3players)4.Lookatthepicturesanddescribehowtheplacehaschanged.Usethesewords:add,change,open,paint,put,turnon,takeaway,5.Completethepassagewiththecorrectformofthewords.call,clean,develop,introduce,invent,produce,spread,use,writeFromabout500BC,pens__________forwriting.Thefeathersoflargebirds___________anddried.Thepointofeachfeatherwassharpened.Thenpeopleusedthemtowritewithink.Manyfamousworks,suchasShakespeare’splays,___________withthesepens.Theninthe18thcentury,Apenwithasteelwritingpoint____________Onlyafewwordscould__________,however,beforethewriterhadtofillthepenwithinkagain.Manyyearslater,thefountainpen____________fromtheseearlypens.In1950,aEuropeancalledLaszloBiroinventedtheballpointpen.Thepopularityofwriting_________quicklywiththe___________oftheballpointpen.Eventoday,ballpointpen,orBiros,asthey_____________,aremuchlessexpensive,comparedwiththefountainpens.6--7ListeningPractice8.Completethesentenceswiththephrasesinthebox.byhand,forages,fromnowon,Iwonder,ratherthan1.CouldyouimagineadigitalimageofYaoMingonthewall_____________aposter?2.Thingsmade_____________areusuallymoreexpensivethanthoseproducedinfactories.3.____________howoldbooksareactuallydownloadedontocomputers…4