unit 6 section a-1【ppt课件】

《unit 6 section a-1【ppt课件】》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit6Whenwasitinvented?SectionA1a-3cWhataretheFourGreatInventionsinancientChina?Doyouknow?paper-making造纸术compass指南针printing印刷术gunpowder火药造纸术印刷术inventionscarWhat’sthiscalledinEnglish?televisiontelephonecomputercalculatormicrowaveovenlightbulbbatteryLookatthethings.Inwhatorderdo

2、youthinktheywereinvented?A:Ithinkthecalculatorwasinventedbeforethecomputer.B:Well,Ithinkthecalculatorwasinventedafterthecomputer.ThecarwasinventedbeforetheTVset.GameA:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….ThetelephonewasinventedbeforetheTVset.A:Ithink…wasinv

3、entedbefore…B:Well,Ithink…wasinventedafter….Thetelephonewasinventedbeforethecomputer.A:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….ObjectivesTolearntounderstandandusepassivevoiceTolistenandspeakaboutthehistoryofinventionsusingpassivevoiceTolistenandspeakaboutwhati

4、nventionswereusedforusingpassivevoice1aLookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1–4](1=first,4=last).A:IthinktheTVwasinventedbeforethecar.B:Well,IthinktheTVwasinventedafterthecar.42131bListenandmatchtheinventionswiththe

5、years.____1876____1885____1927____1976dacbWatchandread1cStudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.cWhenwasthecomputerinvented?Letmesee…2aListena

6、ndnumbertheinventions[1–3]intheorderyouhearthem.2132bListenagainandmatchtheitemswiththeirinventorsanduses.InventionWhatisit/aretheyusedfor?shoeswithspecialheels_________thestyleoftheshoesshoeswithlightsseeing_____________hotice-creamscoop________reallycoldice-creamchangingint

7、hedarkserving2cMakeconversationsusingtheinformationin2b.A:Whataretheyusedfor?B:They’reusedforseeinginthedark.Paul:HeyRoy,thesubjectformyschoolprojectis“Smallinventionsthatchangedtheworld.”Canyouhelpmethinkofaninvention?Roy:Mypleasure!Letmethink...hmm...Iknow!Thezipper!Paul:The

8、zipper?Isitreallysuchagreatinvention?Roy:Thinkabouthowoftenit