九年级英语《Unit 9 When was it invented》课件.ppt

SectionA1a-1c七年级人教新目标下册七年级人教新目标下册What does the song sing about?ComputerIn fact,the name of the song is computer.Four ancient(远古的远古的,旧的旧的)inventionscompassgun powder printingpapercarWhatsthiscalledinEnglish?televisiontelephonepersonalcomputercalculatorumbrellaalarmclockcameramicrowaveovensabacusesbinocularslightbulbsbatteryBatteriesWhatarethesecalledinEnglish?A:Whenwasthecarinvented?B:Well,Ithinkitwasinventedin.A.1885B.1876C.1927D.1971A:Whenwasthetelephoneinvented?B:Well,Ithinkitwasinventedin.A.1885B.1876C.1927D.1971A:Whenwasthetelevisioninvented?B:Well,Ithinkitwasinventedin.A.1885B.1876C.1927D.1971A:Whenwasthepersoncomputerinvented?B:Well,Ithinkitwasinventedin.A.1885B.1976C.1927D.1971A:Whenwerethelightbulbsinvented?B:Well,Ithinktheywereinventedin.A.1885B.1871C.1927D.1971A:Whenwerethebinocularsinvented?B:Well,Ithinktheywereinventedin.A.1854B.1871C.1927D.1971Look at the things.In what order(顺序顺序)do you think they were invented?A:Ithinkthecalculatorwasinventedbeforethecomputer.B:Well,Ithinkthecalculatorwasinventedafterthecomputer.1aA:IthinkwasinventedbeforeB:Well,Ithinkwasinventedafter.Thecarwasinventedbeforethetelevision.A:IthinkwasinventedbeforeB:Well,Ithinkwasinventedafter.Thetelephonewasinventedbeforethepersonalcomputer.A:IthinkwasinventedbeforeB:Well,IthinkwasinventedafterThecalculatorwasinventedbeforethebattery.Thebatterywasinventedafterthecalulator.A:IthinkwasinventedbeforeB:Well,IthinkwasinventedafterThecamerawasinventedbeforethecalculator.Thecalculatorwasinventedafterthecamera.A:IthinkwasinventedbeforeB:Well,IthinkwasinventedafterThebinocularswereinventedbeforethecalculator.Thecalculatorwasinventedafterthebinoculars.Listen and match the Listen and match the inventions with the dates.inventions with the dates.abedc1876_1885_1927_1971_1976_dabec1b13425Answer:the right order they were inventedA:A:When When waswas the _ the _ inventedinvented?B:I think it B:I think it was inventedwas invented in in _._.197618851876192719711cin1927A:WhatisthiscalledinEnglish?B:B:Itiscalledatelevision.A:Whenwasthetelevisioninvented?B:Itwasinventedin1927.in1976in1971in1885in1876in1827in1871in1854in1800am/is/are+vt.ppwas/were+vt.ppEdison invented the light bulb.The light bulb was invented by Edison.Who was the light bulb invented by?The telephone by Bell.was invented Whowasthetelephoneinventedby?Bell invented the telephone._ was invented by _.The carKarl BenzWhowasthecarinventedby?Karl Benz invented the car.A:What is the car used for?B:The car is used for traveling.A A:What is the _ What is the _ used for?used for?B:I think itB:I think it is used foris used for _.talking with peopleA:What is the used for?B:I think it is used for _.(count)countingA:What is the used for?B:I think it is used for _.(work)workingA:What is the used for?B:I think it is used for _.(ride)ridingA:What is the used for?B:It is used for _.(count)countingA:What is the used for?B:It is used for _.(watch the things far away clearly)watching the things far away clearly.A A:What is the _ What is the _ used for?used for?B B:It isIt is used for used for _._.making the food hot.(make the food hot)A:When was invented?B:It was invented inA:Who was it invented by?B:It was invented byA:What is the used for?B:The is used for doing Whoweretheyinventedby?Whataretheyusedfor?adjustable 可调整的可调整的operate 操作操作 heat 加热加热1.根据根据1a的图片的图片,仿造仿造c的对话写出类似的其它个对话的对话写出类似的其它个对话2.完成作业本上的练习完成作业本上的练习SectionA2a-2ccarWhatsthiscalledinEnglish?televisiontelephonepersonalcomputercalculatorumbrellaalarmclockcameramicrowaveovensabacusesbinocularslightbulbsbatteryBatteriesWhatarethesecalledinEnglish?cartelevisiontelephonepersonalcomputercalculatoralarmclockcameramicrowaveovenabacusbinocularslightbulbsbatteriesDoyouhaveagoodmemory?A:WhenA:Whenwaswasthecomputerthecomputerinventedinvented?B:ItB:ItwasinventedbywasinventedbytwoyoungmenfromAmerica.twoyoungmenfromAmerica.in1976,twoyoungmenfromAmericaA:WhatisthiscalledinEnglish?B:Itiscalledapersonalcomputer.B:Itwasinventedin1976.A:Whoinventedthepersonalcomputer?B:TwoyoungmenfromAmericainventedit.A:Whowasitinventedby?A:Whatisitusedfor?beusedfor被用做于被用做于-B:ItisusedforsurfingtheInternet.in 1876BellA:WhatisthiscalledinEnglish?A:Whenwasitinvented?A:Whowasitinventedby?A:Whatisitusedfor?.B:It is called a telephone.B:It was invented in 1876.B:It was invented by Bell.B:It is used for talking with people.in1885KarlBenztravelA:WhatisthiscalledinEnglish?A:Whenwasitinvented?A:Whowasitinventedby?A:Whatisitusedfor?B:It is called a car.B:It was invented in 1885.B:It was invented by Karl Benz.B:It is used for traveling.in1871givinglightEdisonA:WhataretheycalledinEnglish?A:Whenweretheyinvented?A:Whoweretheyinventedby?A:Whataretheyusedfor?B:They are called light bulbs.B:They were invented in 187.B:They were invented by Edison.B:They are used for giving light.1827,takephotosabout4,000yearsagokeepofftherain1971,countbinoculars,1854,seethingsfarawayclearlyKnives,cutthingsA:What is it/are they called in English?B:It is/They are called-A:When is it/are they invented?B:It is/They are invented-A:Who was it/were they invented by?B It was/They were invented by-A:What is it/are they used for?B:It is/They are used for-batteryslippersThey were invented by Julie Thompsonbattery-operated slippers电池供电的拖鞋电池供电的拖鞋ice creamscoop sku:pheated ice cream scoop加热的冰激凌勺加热的冰激凌勺It was invented by Chelsea LanmonThey were invented by Jayce Coziar and Jamie Ellsworth shoes with adjustable heels 可调节后跟的鞋可调节后跟的鞋A:Whatisitcalled?B:Itiscalled-batteriesslippersbattery-operatedslippers电池供电的拖鞋电池供电的拖鞋A:Whataretheycalled?B:Theyarecalled-icecreamscoop勺子heatedicecreamscoop加热的冰激淋勺加热的冰激淋勺shoeswithhighheels高跟高跟shoeswithadjustableheels可调节后跟的鞋可调节后跟的鞋shoeswithadjustableheelsbattery-operatedslippers电池操作的电池操作的拖鞋拖鞋heatedicecreamscoop加热的冰淇淋勺加热的冰淇淋勺Whowasthe inventedby?WhatistheusedforWhowerethe inventedby?WhataretheusedforListen and number the inventions inthe order that you hear.3122aInventionWho was it/were they invented by?What is is/are they used for?shoes with adjustable heelsChelsea Lanmonscooping really cold ice creambattery-operated slippers Jayce Coziar and Jamie Ellsworth seeing in the darkheated ice cream scoopJulie Thompsomchanging the style of the shoesListen again.Match the inventions with their inventors and uses.2bRole play conversations using the information in the chart above.A:Whatisit/aretheycalledinEnglish?B:Itis/Theyare.A:Whowasit/weretheyinventedby?B:Itwas/Theywereinventedby.A:Whatisit/aretheyusedfor?B:Its/TheyreusedforBecauseofsomegreatinventions,ourlifebecomesmuch easier and more comfortable.We should be proud of being a Cpassgun powderprintingPapermakingWhat When Who Be used forPrintingSongDynastyChineseMakingcopiesA:Look!Thislookssointeresting!B:Ah,itsagreatinventionofChina.A:Really?When_it_?B:Ithinkit_inHanDynasty.A:What_it_for?B:Guess!A:_it_forholdingwater?B:No.It_fortestingearthquakes（地震地震）.A:Wow,itsreallyamazing!wasinventedwas inventedisusedIsusedisused(汉朝汉朝)将下列句子改为被动语态将下列句子改为被动语态1.Peopleusemetalformakingmachines.Metalformakingmachines.2.Wedontuserecordersinmathclass.Recordersbyinmathclass.3.Dotheyuseitasatable?itasatableby?4.Shegrowsflowersonafarm.Flowersafarm.5.DotheyteachJapaneseintheirschool?Japaneseintheirschool?isusedareusedusIsusedthemaregrownonIstaught6.TheywritethesebooksinFrench.7.Thestudentscleantheclassroomeveryday.8.Wemakeshoesinourfactory.9.Xiaomingdrewthepictureyesterday.These books are written by them in French.The classroom is cleaned by the students every day.Shoes are made by us in our factory.The picture was drawn by Xiaoming yesterday.10.He asked me to speak loudly.I speak loudly .11.The teacher often makes us do lot of homework.We often lots of homework by the teacher.12.My father bought me a new bike yesterday.A new bike me yesterday.I a new bike yesterday.wasaskedtobyhimaremadetodowasboughtforwasboughtbymyfatherSurftheInternet,andfindoutmoreinventions.Introducethemtoyourclassmates,usingItwas/Theywereinventedby_.Itwas/Theywereinventedin_.Itis/Theyareusedfor_.The passive voice.被动语态被动语态 英语中动词有主动语态和被动语态两种语态英语中动词有主动语态和被动语态两种语态.主动语主动语态表示主语是动作的执行者态表示主语是动作的执行者,被动语态表示主语是动作的被动语态表示主语是动作的承受者承受者,在被动语态中动作的执行者有时用在被动语态中动作的执行者有时用byby短语表示短语表示出来出来.被动语态的被动语态的构成构成:助动词助动词be+(及物及物动词的动词的)过去分词过去分词 一般现在时一般现在时一般过去时一般过去时am (is,are)+donewas(were)+doneThe passive voice.被动语态被动语态被动语态的用法被动语态的用法:1.不知动作执行者时不知动作执行者时,常用被动语态常用被动语态.eg.My bike was stolen yesterday.This car is made in American.2.不必要说出动作执行者时不必要说出动作执行者时,常用常用.eg.Rome was not built in a day.3.为了突出强调动作的承受者时为了突出强调动作的承受者时,常用被动语态常用被动语态.eg.Thousands of beaches are polluted(污染污染).The passive voice.被动语态被动语态主动语态变为被动语态的步骤主动语态变为被动语态的步骤:1.把原主动句中的宾语转换为被动语态的主语把原主动句中的宾语转换为被动语态的主语.2.把动词改为被动形式把动词改为被动形式,即即“be+过去分词过去分词”.注意注意 be动词要按新的主语的人称和数进行变化动词要按新的主语的人称和数进行变化,时态要和原来时态要和原来的主动语态的时态保持一致的主动语态的时态保持一致.3.原来主动语态句中的主语原来主动语态句中的主语,如果需要如果需要,就放在就放在by后面后面以它的宾格形式出现以它的宾格形式出现.如果没有必要就可以省略如果没有必要就可以省略.其他的其他的成分成分(定语定语,状语状语)不变不变,句式也不能变句式也不能变.The passive voice.被动语态被动语态主动语态变被动语态的结构图主动语态变被动语态的结构图:Bell invented the telephone in 1876.The telephone was invented by Bell in 1876.主语主语 谓语动词谓语动词过去时过去时宾语宾语时间状语时间状语主语主语谓语动词的谓语动词的过去分词过去分词宾语宾语时间状语时间状语1.I open the door.The door is opened by me.2.He often helps homeless people.Homeless people are often helped by him.3.I handed out some papers just now.Some papers were handed out by me just now.主动语态:主语主语是动作的执行者执行者。被动语态:主语主语是动作的承受者承受者。被动语态结构为：(主动语态)(主动语态)(主动语态)(被动语态)(被动)(被动语态)be+过去分词过去分词将下列句子变为被动语态。将下列句子变为被动语态。SectionA:3a-4Thisinventionlookslikeabird.Itsverystrong.Itcantakeseveralhundredpeopletoanyplaceintheworld.airplaneWhatisitusedfor?Itisusedfortakingpeopletoanyplaceintheworld.This little thing has numbers on it.Its small,but help you work out math problems.calculatorItisusedforcalculating.Whatisitusedfor?Itisverysmall,soyoucanputitintoyourpocket.Whereveryougo,youcanuseittotalktoyourfriendsandyourfamilyfaraway.mobilephoneThislittlethinghasnumbersfrom0to9.Whatisitusedfor?Itisusedfortalkingtothefriendsorfamilywithoutmeeting.Hereisaboxwithabeautifulglassface.ItlookslikeaTV,butitisnt.IputerWhatisitusedfor?Itisusedforworkingorstudying.Hereisaboxwithabeautifulglassface.Youcanseedifferentpeopleindifferentcountries.televisionWhatisitusedfor?Itisusedforknowingwhathashappenedintheworld.Hereisabigbox.Itsveryhard-working.Itcanmakeyourclothescleanandyourhouseworkeasy.Withitshelpyoucanhavemoretimetorelaxortowork.washingmachineWhatisitusedfor?Itisusedforhelpingwashclothes.Hereisabox.Youcanuseittocookmanykindsofdeliciousfood,suchasfish,meatandrice.Youcanalsouseittomakecoldfoodhotinafewminutes.microwaveovenWhatisitusedfor?Itisusedforcookingfoodormakingfoodhot.WhatsthiscalledinEnglish?Itscalledabookcase.Whatsitmadeof?Itsmadeofwood.bemadeof由由-做成做成Whatsitusedfor?Itsusedforstoring(贮藏贮藏)books.Itisastamp.Itismadeofpaper.Itisusedforsendingletters.Itsachair.Itismadeofwood.Itisusedforsitting.Itisapairofglasses.Itismadeofglass.Itisusedforseeingclearly.Itsacup.Itismadeofchina(陶瓷陶瓷).Itisusedfordrinking.chairglassesjacketstampkeybookcasewoodglasswool(羊毛羊毛)papermetal(金属金属)woodsittingseeingclearlykeepingwarmsendingaletteropeningandlockingadoorstoringbooksA:WhatsthatcalledinEnglish?B:Itscalledachair.A:Whatsitmadeof?B:Itsmadeofwood.A:Whatsitusedfor?B:Itsusedforsitting.Whats it made of?Its made of metal.Where is it made?Its made in Beijing.Whats it made from?Its made from sea water.Where is it made?Its made in East and South China.bemadeof由由制成制成 可看出原材料可看出原材料 物理变化物理变化bemadefrom由由制成，看不出原材料制成，看不出原材料 化学化学变化变化 bemadein+地点地点由（什么地方）生产的由（什么地方）生产的bemadeby+sb强调制造者强调制造者bemadeCompletethefollowingwithrightprepositionsandtranslatethemintoChinese.1.Stampismadepaper.2.Tablesaremade_wood.3.ThisbeautifulcardismadeTom.4.Thiskindofpaperismaderags(破布破布).5.Papercanbemadebamboo（竹子）竹子）.6.ThiskindofTVismadeJapan.7.Beerismadebarley(大麦大麦).ofoffromfromfrombyinbe used for doing sth.=be used to do 被用来做被用来做介词介词for表示表示“用途用途”be used as 意思是意思是“把把当做当做用。用。”be used by+sb 被（某人）使用被（某人）使用beused1.Iusethiscardabookmark.2.Thismaterial(材料材料)isused_drawing.3.Mybikeisusedmysister.4.Englishisused_asecondlanguageinChina5.Thiskindofmachineisused_cookfood.asforbyastoA:Whatisthemp3usedfor?B:Itisusedfor listeningtomusic.listentomusicA:Ithinkitisahelpfulinvention.BecauseIlikelisteningtomusic.A:WhatisthiscalledinEnglish?B:ItscalledanMP3.alarm clock-Ithinkitsanannoyinginvention.BecauseitwakesmeupwhenImsleeping.wakepeopleup-Whatisthealarmclockusedfor?-Itisusedfor.wakingpeopleupbinoculars-Ithinkitsaninterestinginvention.Becauseitcanhelpusseemorethings.seesomethingfarmoreclearly-Whatisthebinocularsusedfor?-Itisusedfor.seeingsomethingfarmoreclearlyA:Whatdoyouthinkisthemosthelpfulinvention?B:Ithinkthemosthelpfulinventionisthelightbulb.A:Whyisthat?B:Well,itgivespeoplemoretimetoworkandplayeveryday.Helpful inventionsAnnoying inventionsExample _1._2._3._4._5._ Example _1._2._3._4._5._telephonealarm clockplanecomputerbikecartrainatomic bombmissile gunchemical weaponsplastic bagsMake a list of five helpful inventions and five annoying inventions.3aWhat do you think is the most helpful/annoying inventions?Name Helpful inventionsWhy Annoying inventionswhy Julie thinks the computer is the most helpful invention because it helps her search the information that she needs.But she also thinks the is the most annoying invention becauseReport JuliecomputerIfyouarealoneonatinyisland(小岛小岛),whatwouldyouneed?吹牛皮吹牛皮compassWhatwouldyouneed?torch Imagine that you are alone on a tiny island.Choose five inventions you would like to have on the island with you.Tell the group of four what you chose and whyA:IdliketohavearadiobecauseIcouldlistentomusicallday.B:Yes,butitsnotgoingtohelpyouleavetheisland.IthinkitwouldbebettertohaveknifeguntelescopetorchA:Idliketohavearadio.B:Whyisthat?A:BecauseIcouldlistentomusicallday.B:Butthatsnotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveacomputer.Groupwork:Imagine(想像想像)thatyouwanttoleavetheisland.Whatwouldyouneed?1._2._3._4._5._1.Howmuchisit?2.Whereisitmade?3.Whichonedidshebuyatlast,theexpensiveoneortheordinary（普通的）普通的）one?4.Whereisitmade?5,000yuanInJapan.Theordinaryone.InShanghai.Write a short article about“1 or 2 Important Inventions In My Life”.Tell us,what are the most important inventions in your daily life?Write more information about them and the reasons.SectionB:1a-2cWhat inventions can you think of?inventionsoldinventionselectricstuffsfoodtransportation sweetsweet甜的甜的甜的甜的-HowHowdoesdoes itittastetaste(teistteist 品尝品尝品尝品尝)?-Ittaste-Ittastes sicecreamicecream WhatisitcalledinEnglish?-How-Howdoesdoesitittastetaste?-Ittaste-Ittastes sEnglishteaEnglishteaWhatisitcalledinEnglish?sweetsweet甜的甜的甜的甜的 sweetsweet甜的甜的甜的甜的-HowHowdodotheytheytastetaste?-Theytaste-TheytasteWhataretheycalledinEnglish?cookiessoursour-HowHowdodotheytheytastetaste?-Theytaste-Theytastelemonlemons sWhataretheycalledinEnglish?-Howdotheytaste?-Howdotheytaste?-Theytaste-Theytasteplumplums ssoursourWhataretheycalledinEnglish?red bayberries saltysalty-HowHowdodotheytheytastetaste?-Theytaste-Theytastecrispycrispyandsaltyandsalty-Howtheytaste?-Howtheytaste?-Theytaste-TheytastepotatochipspotatochipsWhataretheycalledinEnglish?脆的脆的,易碎的易碎的咸的咸的,含盐的含盐的-Howtheytaste?-Howthey