九年级初三英语下册《When was it invented》PPT课件

Whenwasit。九下初中英语invented?,inventv.发明inventorn.发明家inventionn.发明e.g.Edison,agreatinventor,inventedmanygreatinventionsduringhislife.Previewcheck,Doyouknowwhattheseinventionsare?telephonecartelevisioncomputer,DoyouknowwhotheTVwasinventedby?Canyoumatchtheinventionswiththerightinventors?KarlBenz卡尔奔驰AlexanderBell亚历山大贝尔J.L.Baird贝尔德JohnvonNeumann约翰·冯·诺依曼,Thetelephonewasinvented(byBell).Bellinventedthetelephone.AlexanderBell亚历山大贝尔,Benzinventedthecar.Thecarwasinvented(byKarlBenz).KarlBenz卡尔奔驰,Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4].1a,IthinktheTVwasinventedbeforethecar.Well,Idisagreewithyou.IthinktheTVwasinventedafterthecar,Ithinkthetelephonewasinventedbeforethecomputer.Well,Iagreewithyou,Ithink…wasinventedbefore/after...Well,I…,ListeningListenandmatchtheinventionswiththeyears.1b___1876___1885___1927___1971,StudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.Whenwasthetelephoneinvented?Ithinkitwasinventedin1876.1c,A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.A:Whowasitinventedby?B:ItwasinventedbyBell,Decidewhetheractiveorpassiveformsshouldbeusedinthesesentence.Writethecorrectformsintheblanks.4cThetelephone___________(invent)byAlexanderGrahamBell.He________(born)in1847.Mr.Bell________(work)ontheinventionofthetelephonewithThomasWatson.In1875,Mr.Bell_________(learn)howtosendmusicalnotesthroughaninstrumentsimilartoatelephone.Finally,thetelephone___________(invent)in1876.Thefirstsentencethat_______(say)onthetelephonebyMr.Bellwas“Mr.Watson,comehere;Iwanttoseeyou.”Todaythetelephone______(use)aroundtheworld,Therearethreeinterestinginventions.Let'slookatwhattheyare,Whenwasit。九下初中英语invented?