人教版九年级英语第九单元第一课时课件.ppt

inventcalculatorbeusedforscoopadjustable,v.发明；创造n.计算器用来做v.用勺舀n.勺子；球形勺；长柄勺adj.可调整的,heelbatteryoperatebattery-operateslipperheat,n.（鞋、袜等的）后跟；(足)跟n.电池v.操作；作业电池供电的n.拖鞋v.加热；使变热,bulblightbulbmicrowavemicrowaveoven,n.电灯泡；电灯电灯泡n.微波微波炉,inventorn.发明家eg:Edisonisafamousinventor.,inventv.发明eg:Edisonisafamousinventorwhoinventedthelightbulb(灯泡).,inventionn.发明eg:Thelightbulbisagreatinvention.,beinventedby被发明eg:ThelightbulbwasinventedbyEdison.,Edison,【拓展延伸】beusedassth.表示“被用作某物”。如：Englishisusedasthesecondlanguageinmanycountries.beusedbysb.表示“被某人使用”，后接动作的执行者。如：Thesetextbooksareusedbystudents.be/getusedtodosth.表示“习惯于做某事”。如：Sheisusedtorunningeverymorning.usedtodosth.表示“过去常常做某事”。如：MissLiusedtodanceafterwork.,Whenwasitinvented?(Period1)(1a-1c&GrammarFocus),Unit9,Itwasinvented,Whatishedoing?,Hes_.,Whatdoyouthinkatelephoneisusedfor?,Atelephoneisusedfortalkingwithpeople/makingtelephonecalls/callingupfriends/.,makingatelephonecall.,beusedfor+doing/sth.被用来做某事,atelephone,acar,aTVset,acomputer,acalculator,Whatarethey?,inventions:n.发明,Whataretheyusedfor?,isusedfor,callingupotherpeople,takingpeopletoanotherplace,calculating,helpingpeoplewithstudyandwork,knowingmoreabouttheworld,A:Ithinkthetelephonewasinventedbeforethecar.B:Well,Idisagree.Ithinkthetelephonewasinventedafterthecar.,Inwhatorder(顺序)youthinktheywereinvented?Number1-5.,listenandmatchtheinventionsandthedates.,_1876_1885_1927_1971_1976,daecb,1b,G:Lifemusthavebeendifficultwhenyouwereakid.W:Oh,notreally.Whydoyousaythat?G:Well,youdidnthavemanymoderninventions.Like,you.?W:Ofcoursewedid!HowolddoyouthinkIam?_1_.G:Howaboutcars?Ibetcarswerentinventedyet.W:Suretheywere._2_.Myfamily.G:Ha,ha!Well,didyouhaveaTV?W:No,wedidnt._3_,Ithink.Somefriendsofmine.G:AndIbetyou.Welearnedinschoolthathand-held_4_and_5_.W:Youreright.IdidnthavethosethingswhenIwasyoung.ButIdonow!,1.Thetelephonewasinventedin1876.,2.Carswereinventedin1885.,3.TheTVwasinventedaround1927.,4.Calculatorswereinventedin1971.,5.Personalcomputerswereinventedin1976.,A:Whenwastheinvented?B:Itwasinventedin_.,1c,Pairwork,1976,1927,1876,1885,1971,Baird(贝尔德)Bell(贝尔)WozinakandJobs(沃兹奈克和乔布斯)Simckley(辛克莱)Benz(本茨),Guesswhotheseinventionswereinventedby?Guessing:.Maybe/PerhapsthewereinventedbyXXX.,A:WhatsthisinEnglish？B:ItsaTVset.A:WhenwastheTVsetinvented?B:Itwasinventedin1927.A:Whowasitinventedby?B:ItwasinventedbyBaird.A:Whatisitusedfor?B:Itisusedforknowingmoreabouttheworld.,Askandanswer,1885,1971,1976,WozinakandJobs,Simckley,Baird,1927,Bell,1876,Benz,A:WhatsthisinEnglish?B:Its.A:Whenwasinvented?B:Itwasinventedin.A:Whowasinventedby?B:Itwasinventedby.A:Whatisusedfor?B:Itisusedfor,ThefourgreatinventionsofChina,Chinaisanoldcountrywithalonghistory.Ithasthefourgreatinventions.,3,1,2,2a,Listenandnumbertheinventionsintheorderthatyouhearthem.,Listenagainandmatchtheitemswiththeirinventorsanduses.,2b,被动语态:P143,定义:主动语态表示主语是动作的执行者,被动语态表示主语是动作的承受者。,WespeakEnglish.,主语,谓语,宾语,Englishisspokenbyus.,主语,谓语,宾语,主动语态,被动语态,巧记:宾变主,主变宾,前加by动变被,看清be,结构be+p.p.,Mariaboughtthebooklastyear.(主动句)ThebookwasboughtbyMarialastyear.WhenwasthebookboughtbyMaria?WhatwasboughtbyMarialastyear?,被动句：,让我们看一看各种句型的主动语态变为被动语态时，到底发生了什么变化？,主变被解题步骤:,1.找宾语-即动作的承受者,eg:Theymakeshoesinthatfactory.,Shoes,2.判断宾语的单复数-即be动词的单复数.,arewere,3.判断动词的时态-即be动词的时态.,4.修改谓语的时态-即原句动词改为过去分词,made,5.修改原句的主语-即by+主语/宾语（人称代词）.,bythem,inthatfactory.,6.其它的成分（定语、状语）不变。,1.Peopleuseknivesforcuttingthings.Knives_forcuttingthings.2.Thestudentscleanthewindowsoftheirclassroomtwiceamonth.Thewindowsoftheirclassroom_twiceamonth.3.Ifoundtheticketonthefloor._onthefloor.4.Itoldhertoreturnthebookintime.She_toreturnthebookintime.5.Nowpeoplecanusecomputerstohelpthem.Nowcomputers_tohelpthem.,areused,arecleaned,(变被动语态）,Theticketwasfound,wastold,canbeused,Exercise:,do/does,is/am/are+done,did,will/begoingtodo,was/were+done,willbedone,begoingtobedone,S+was/were+done,S+was/were+not+done,Was/Were+S+done?,S+willnotbe+done,S+am/is/aregoingtobedone,Am/Is/Are+S+goingtobedone?,S+am/is/arenotgoingtobedone,Will+S+done?,S+willbe+done,Itsusedforscoopingreallycoldicecream.【经典习题】完成句子：邮票是用来发送信件的。Stampsare_letters.【要点点拨】beusedfordoingsth.表示“被用于干某事”，意思与beusedtodosth.相同。如：Thecameraisusedfortakingphotos.=Thecameraisusedtotakephotos.,usedforsending,把下列句子改为被动语态。1.TheymadethesecomputersinShenzhen.Thesecomputers_inShenzhen.2.Sheboughtanewbikeyesterday.Anewbike_byheryesterday.,weremade,wasbought,3.Thestudentscleantheroomeveryday.Theroom_bythestudentseveryday.4.Hewillsinganewsongattheparty.Anewsong_byhimattheparty.5.Studentscanttakethebooksoutofthelibrary.Thebooks_outofthelibrarybystudents.,iscleaned,willbesung,cantbetaken,中考真题链接,1.IfeelveryhappythatI_tobethehost.Congratulations!(07江西)A.chooseB.amchosenC.waschosenD.havenchosen2.TodayChinese_bymoreandmorepeoplearoundtheworld.(07北京)A.wasspokenB.isspokenC.spokeD.speak,3(课改实验区考生做)(07重庆)YourhometownhaschangedalotYes.Takealookatthesetallbuildings.They_lastyearA.buildBbuiltC.wasbuiltDwerebuilt(非课改实验区考生做)Whyistheclassroomsodirty?Sorry,sir.It_yesterdayWeforgottodoitA.dontcleanB.didntcleanC.werentcleanedD.wasntcleaned,1.Tom，youshouldntputofftodaysworktomorrow.Imeantodaysworktoday.A.mustbedoneB.mustdoneC.maybedoneD.maydone（江苏）2.Mycousinhasbeenhappybecausehe_tospendmoretimewithhisfriends.A.willallowB.willbeallow