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Unit9Whenwasitinvented?SectionAPeriodOneinventcalculatorbeusedforscoopadjustablev.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Wordsandexpressionsheelbatteryoperatebattery-operateslipperheatn.（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WordsandexpressionsWhataretheFourGreatInventionsinancientChina?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?1aA:Ithinkthecalculatorwasinventedbeforethecomputer.B:well,Ithinkthecalculatorwasinventedafterthecomputer.Talkaboutwithyourparterner.Listenandmatchtheinventionswiththedates.1b___1876___1885___1927___1971___1976daecbSampledialogues:A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.A:Whenwasthecarinvented?B:Ithinkitwasinventedin1885.Ithinkitwasinventedafterthetelephone.Pairwork1cWhenwasthecalculatorinvented?Whatisitusedfor?Itisusedforcounting.Whataretheyusedfor?Theyareusedforgivinglight.lightbulbsWhatis/are…usedfor?It’s/They’re…usedfor…3122aListenandnumbertheinventionsintheorderthatyouhearthem.InventionWhowasit/weretheyinventedbyWhatisit/aretheyusedfor?shoeswithadjustableheelsChelseaLanmonscoopingreallycoldicecreambattery-operatedsneakersJayceCoziarandJamieEllsworthseeinginthedarkheatedicecreamscoopJulieThompsonchangingthestyleoftheshoesListenagainandmatchtheitemswiththeirinventorsanduses.2bRoleplaytheconversationsusingtheinformationinthechartabove.A:Whataretheyusedfor?B:They’reusedforseeinginthedark.2cPairworkOralPracticeSentencepattern:Whowasit/weretheyinventedby?Itwas/Theywereinventedby...Whatisit/aretheyusedfor?Itis/Theyareusedfor...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。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？时态主动语态被动语态一般现在时一般过去时一般将来时do/doesis/am/are+donedidwill/begoingtodowas/were+donewillbedonebegoingtobedone时态肯定形式否定形式疑问形式一般过去时一般将来时S+was/were+doneS+was/were+not+doneWas/Were+S+done?S+willnotbe+doneS+am/is/aregoingtobedoneAm/Is/Are+S+goingtobedone?S+am/is/arenotgoingtobedoneWill+S+done?S+willbe+doneIt’susedforscoopingreallycoldicecream.【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.Whenwasthecarinvented?Itwasinventedin1885.Whenwereelectricslippersinvented?Theywereinventedlastyear.Whoweretheyinventedby?TheywereinventedbyJulieThompson.Whataretheyusedfor?They’reusedforseeinginthedark.把下列句子改为被动语态。1.TheymadethesecomputersinShenzhen.Thesecomputers_________inShenzhen.2.Sheboughtanewbikeyesterday.Anewbike__________byheryesterday.weremadewasbought3.Thestudentscleantheroomeveryday.Theroom_________bythestudentseveryday.4.Hewillsinganewsongattheparty.Anewsong___________byhimattheparty.5.Studentscan’ttakethebooksoutofthelibrary.Thebooks____________outofthelibrarybystudents.iscleanedwillbesungcan’tbetaken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.speak3．(课改实验区考生做)(07’重庆)—Yourhometownhaschangedalot．—Yes.Takealookatthesetallbuildings.They______lastyear．A.buildB．builtC.wasbuiltD．werebuilt(非课改实验区考生做)—Whyistheclassroomsodirty?—Sorry,sir.It_______yesterday．Weforgottodoit．A.don’tcleanB.didn’tcleanC.weren’tcleanedD.wasn’tcleaned