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

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1、Unit9Whenwasitinvented?SectionAPeriod11Wordsandexpressionsv.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n.（鞋袜等的）后跟；足跟n.电池v.操作；作业inventcalculatorbeusedforscoopadjustableheelbatteryoperate2Wordsandexpressions电池供电的n.拖鞋v.加热；使变热n.电灯泡；电灯电灯泡n.微波v.微波炉battery-operatedslipperheatbulbligh

2、tbulbmicrowavemicrowaveoven3Museum4InventionMuseum5Guessing:Whatisit?part16Guessing:Whatisit?MicrowaveovenItisusedforcookingandheatingfood(加热)7Itisusedfor___________.talkingwithpeople(talkwithpeople)Whatisitusedfor?telephone8Itisusedfor___________.(study)studyingWhatisituse

3、dfor?computer9Whatisitusedfor?Itisusedforcounting.calculator(count)10Whataretheyusedfor?Theyareusedforgivinglight.lightbulbs(givelight)11Whatis/are…usedfor?It’s/They’re…usedfor…pairwork12lightbulbsWhenwerethelightbulbsinvented?Ithinktheywereinventedin1879.131876188519271971

4、1976Whenwasthecarinvented?Itwasinventedin1885.14Whatorderdoyouthinktheywereinvented?Numberthem[1—5]123451a15Chineseinventions16FourgreatinventionsinancientChina:Paper-making(造纸术）Compass（指南针）Printing（印刷术）Gunpowder（火药）17Howmanyinventionsdoyouknow?Groupwork:WhatWhenWhoBeusedfo

5、rPrintingTangDynasty朝代ChineseMakingcopies18Listenandmatchtheinventionswiththedates.abce1b19Explanation年份的读法：两位在一起读。eg.197619002000Readthefollowingyears17451305246nineteenseventy-sixnineteenhundredtwothousandseventeenforty-fivethirteenandfivetwohundredandforty-six20Tapescrip

6、tAlice:Lifemusthavebeendifficultwhenyouwereakid.Woman:Oh,notreally.Whydoyousaythat?Alice:Well,youdidn’thavemanymoderninventions.Like,youprobablydidn’thaveatelephone,right?Woman:Ofcoursewedid!HowolddoyouthinkIam?thetelephonewasinventedin1876.21Alice:Howaboutcars?Ibetcarswere

7、n’tinventedyet.Woman:Suretheywere.Carswereinventedin1885.Myfamilyhadacar.Ithinkyouneedtotakeahistoryclass,Alice.Alice:Ha,ha!Well,didyouhaveaTV?Woman:No,Wedidn’t.TheTVwasinventedaround1927,Ithink.Somefriendsofminehadone.22Butinthosedays,TVswerereallyexpensive,andwecouldn’taf

8、fordone.Alice:AndIbetyoudidn’thavecalculatorsandcomputersandstuff.That’ssomethingI