九年级英语全册《Unit9Whenwasitinvented-SectionA》课件人教新目标版VIP专享VIP免费

Unit6Whenwasitinvented?SectionAWhichdoyouthinkisthemostimportantinventionintheworld?Whatotherscanyouthinkof?TV?telephone?radio?computer?calculator?car?Doyouknowwhattheyare?computerradiotelevisioncalculatortelephonecar1a.Groupwork•Lookatthethingsbelow.Inwhatordersdoyouthinktheywereinvented?Numberthem[1-5]524131b.Listenandmatchtheinventionswiththedates.18851976ab19711876cd1927eAccordingtowhatyouhavelistened,answerthequestionsbelow.1.Whatdidthegrandmahavewhenshewasyoung?2.Whydidn’ttheyhaveatelevisionatthattime?3.Doesgrandmahavepersonalcomputernow?Telephoneandcar.Becauseitwasexpensive.Yes,shedoes.1c.PairworkWhenwasthecomputerinvented?Ithinkitwasinventedin1976.______ShoeswithadjustableheelsIt’susedforscoopingreallycoldicecream.Right.ItwasinventedbyChelseaLanmon._______battery-operatedslippers_______heatedicecreamscoop2a.Listenandnumbertheinventionsintheorder.3122b.Listenagainandmatchtheitemsincolumns.InventionWhowasit/weretheyinventedbyWhatisit/aretheyusedfor?shoeswithadjustableheelsChelseaLanmonscoopingreallycoldicecreambattery-operatedsneakersJayceCoziarandJamieEllsworthseekinginthedarkheatedicecreamscoopJulieThompsonchangingthestyleoftheshoes2c.PairworkWhatisitusedfor?Itisusedforseeinginthedark.3a.Hateitorlikeit?alarmclockcameralightbulbherbicidemicrowaveovenrefrigeratorvediographyingmachineairconditionerplasticbagsCanyouthinkofothers?3b.PairworkA:Whatdoyouthinkisthemosthelpfulinvention?B:Ithinkthemosthelpfulinventionisthecomputer.A:whyisthat?B:BecauseithelpsmesearchtheinformationthatIneed.4.Groupwork•Imaginethatyouarealoneonatinyisland.Choosefiveinventionsyouwouldliketohaveontheislandwithyou.A:I’dliketohavearadiobecauseIcouldlistentomusicallday.B:Yes,butthat’snotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveatelephone.Explanation1.It’susedforscoopingreallycoldicecream.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.Shoeswithadjustableheelswereinventedby…(1)with是介词，意为”“具有，持有，带有”。e.g.agirlwithlonghairahousewithablueroof(2)adjustable意为“可调整的，可调节的”。e.g.Ihaveapairofshoeswithadjustableheels.(3)invent是动词，意为“发明，创造”。e.g.Edisoninventedthelightbulb.invention是名词，“发明，发明物”e.g.Edisonhadabout2,000inventionsduringhislifetime.3.Battery-operatedslipperswereinventedby…operate用法：(1)“操作”e.g.Canyouoperatethecomputer?(2)“起作用，见效果”e.g.Thesleepingpilloperatedatonce.(3)“经营，管理”e.g.Thecompanyoperatestenfactories.(4)“动手术”e.g.Thedoctorwilloperateonhismothernextweek.4.annoyingadj.讨厌的,恼人的(往往指事物)e.g.Howannoyingitis!真讨厌。annoyedadj.生气的,恼怒的(往往指人)e.g.Myfatherisannoyedwithme.爸爸在生我的气。5.helpfuladj.有帮助的,有益的e.g.Mr.Whiteisaveryhelpfulman.构词法：n+ful→adje.g.use+ful→usefulthank+ful→thankfulbeauty+ful→beautifulcare+ful→careful6.Imaginethatyouarealoneontinyisland.aloneadj.意为“单独的”,不带感情色彩。e.g.Whenhiswifedied,helivedalone.lonelyadj.意为“孤独的,寂寞的”e.g.Hefeelslonelywhenheisalone.lonely指地方时表示“荒凉的,偏僻的”e.g.Theoldmanlivesinalonelysmallvillage.7.Ithinkitwouldbebettertohave…(1)would在此处表示“料想或猜想、揣测”，后接动词原形或完成式。e.g.Whatwouldshebedoingthere?(...