九年级六单元第一课时课件.ppt

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1、Unit6Whenwasitinvented?SectionA1a~1cRiddleItisagreatinventionIthasascreenIthasamouseItknowseveryting.Canyouguess?Whatisit?computerWhataretheFourGreatInventionsinancientChina?Doyouknow?ChinesefourgreatancientinventionsCanyousaysomemoderninventionsaroundus?KarlBenzDoyouknowwhotheseinventorsa

2、re?AlexanderGramBellJ.L.BairdCanyoumatchtheinventionswiththerightinventors?KarlBenzAlexanderGramBellJ.L.BairdKarlBenzinventedthecar.______wasinventedby_______.ThecarKarlBenzBellinventedthetelephone.___________wasinventedby_____.ThetelephoneBellBairdinventedtheTV._________wasinventedby____.

3、TheTVBairdIthinktheTVwasinventedbeforethecar.Well,IthinktheTVwasinventedafterthecar.Ithinkthetelephonewasinventedbeforethecomputer.Well,Iagreewithyou.Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4].1a2314年份的读法两个数字一组，分为前后两组121865eighte

4、ensixty-five1989千年的读法twothousand2001twothousandandonenineteeneighty-nineReview3前两个数字不为零，后两个数字为零。eighteenhundred1900nineteenhundred4非四位数的年份的读法！531fivehundredandthirty-one翻译下列年代：1nineteenseventy-one____________2eighteeneighty-five__________3.eighteenseventy-six4.1927_________________5.1976__

5、____________________6.2008____________________7.20151971年1885年1876年nineteentwenty-sevennineteenseventy-sixTwothousandandeighttwothousandandfifteenListeningListenandmatchtheinventionswiththeyears.1b___1876___1885___1927___1971dacbPracticethesentences.Pictured:Thetelephonewasinventedineighte

6、enseventy-six(1876).Picturea:Carswereinventedineighteeneighty-five(1885).Picturec:TheTVwasinventedaroundnineteentwenty-seven(1927).Pictureb:Thepersonalcomputerswereinventedinnineteenseventy-one(1971).Listenandfill.Alice:Wasyourlifeverydifficultwhenyouwereakid?Grandma:Oh,notreally.Why?Alice

7、:Well,youdidn’thavemoderninventionslikea,right?Grandma:Ofcoursewedid!HowolddoyouthinkIam?Thetelephonewasin1876.Youneedtotakeahistoryclass,Alice!Alice:Haha!Howabout?Theyweren’tinventedyet,werethey?Grandma:Yes,theywere.Carswereinventedin1885.Myfamilyhadacar.tele