九年级英语全册《Unit9Whenwasitinvented-SectionA》课件人教新目标版.ppt

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1、九年级人教新目标Unit9Whenwasitinvented?SectionAWhichdoyouthinkisthemostimportantinventionintheworld?Whatotherscanyouthinkof?TV?telephone?radio?computer?calculator?car?Doyouknowwhattheyare?computerradiotelevisioncalculatortelephonecar1a.GroupworkLookatthethingsbelow.I

2、nwhatordersdoyouthinktheywereinvented?Numberthem[1-5]524131b.Listenandmatchtheinventionswiththedates.18851976ab19711876cd1927eAccordingtowhatyouhavelistened,answerthequestionsbelow.1.Whatdidthegrandmahavewhenshewasyoung?2.Whydidn’ttheyhaveatelevisionatthattim

3、e?3.Doesgrandmahavepersonalcomputernow?Telephoneandcar.Becauseitwasexpensive.Yes,shedoes.1c.PairworkWhenwasthecomputerinvented?Ithinkitwasinventedin1976.______ShoeswithadjustableheelsIt’susedforscoopingreallycoldicecream.Right.ItwasinventedbyChelseaLanmon.___

4、____battery-operatedslippers_______heatedicecreamscoop2a.Listenandnumbertheinventionsintheorder.3122b.Listenagainandmatchtheitemsincolumns.InventionWhowasit/weretheyinventedbyWhatisit/aretheyusedfor?shoeswithadjustableheelsChelseaLanmonscoopingreallycoldicecr

5、eambattery-operatedsneakersJayceCoziarandJamieEllsworthseekinginthedarkheatedicecreamscoopJulieThompsonchangingthestyleoftheshoes2c.PairworkWhatisitusedfor?Itisusedforseeinginthedark.3a.Hateitorlikeit?alarmclockcameralightbulbherbicidemicrowaveovenrefrigerato

6、rvediographyingmachineairconditionerplasticbagsCanyouthinkofothers?3b.PairworkA:Whatdoyouthinkisthemosthelpfulinvention?B:Ithinkthemosthelpfulinventionisthecomputer.A:whyisthat?B:BecauseithelpsmesearchtheinformationthatIneed.4.GroupworkImaginethatyouarealoneo

7、natinyisland.Choosefiveinventionsyouwouldliketohaveontheislandwithyou.A:I’dliketohavearadiobecauseIcouldlistentomusicallday.B:Yes,butthat’snotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveatelephone.Explanation1.It’susedforscoopingreallycoldicecream

8、.beusedfor意为“被用来……”,强调用途或作用。e.g.Thedusterisusedforcleaningtherooms.beusedas意为”被当作……来用”，强调被当作工具或手段来用。beusedby意为“被……使用，强调使用者。e.g.Thebigboxisusedasatable.Thecarisusedbyourmanager.2.Shoeswith