Unit 9 When was it invented Section A1 英语教学课件

Unit9Whenwasitinvented?,SectionAPeriodOne,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,WhataretheFourGreatInventionsinancientChina?,Doyouknow?,paper-making造纸术,compass指南针,printing印刷术,gunpowder火药,造纸术,印刷术,Lookatthethings.Inwhatorderdoyouthinktheywereinvented?,1a,A:Ithinkthecalculatorwasinventedbeforethecomputer.B:well,Ithinkthecalculatorwasinventedafterthecomputer.,Talkaboutwithyourparterner.,Listenandmatchtheinventionswiththedates.,1b,_1876_1885_1927_1971_1976,d,a,e,c,b,Sampledialogues:A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.A:Whenwasthecarinvented?B:Ithinkitwasinventedin1885.Ithinkitwasinventedafterthetelephone.,Pairwork,1c,Whenwasthecalculatorinvented?Whatisitusedfor?Itisusedforcounting.,Whataretheyusedfor?,Theyareusedforgivinglight.,lightbulbs,Whatis/areusedfor?Its/Theyreusedfor,part2,3,1,2,2a,Listenandnumbertheinventionsintheorderthatyouhearthem.,Listenagainandmatchtheitemswiththeirinventorsanduses.,2b,Roleplaytheconversationsusingtheinformationinthechartabove.,2c,Pairwork,OralPractice,Sentencepattern:Whowasit/weretheyinventedby?Itwas/Theywereinventedby.Whatisit/aretheyusedfor?Itis/Theyareusedfor.,Grammar,Thepassivevoice被动语态语态是表示主语与谓语的关系的。如果主语是动作的执行者，动词要用主动语态；反之，如果主语是动作的承受者，动词就要使用被动语态。被动语态谓语部分结构为助动词be+过去分词。,各种句型的被动形式,注意：这里be的形式决定了被动语态的时态，其后的过去分词没有变化。,重点内容,肯定句主语+be+过去分词+(by)否定句主语+benot+过去分词+(by)一般疑问句Be+主语+过去分词+(by)?特殊疑问句疑问词+be+主语+过去分词+(by)?,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？,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,Languagepoints,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,【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.,GrammarFocus,Quiz,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.bui