+Unit+6+When+was+it+invented+Section+A+1a~2d-教学课件 人教版九年级英语全册

Unit6

Whenwasitinvented?年级：九年级学科：英语（人教版）（SectionA

1a—2d）learninggoalsAttheendofthisclass,youwillbeableto1.use“was/weredone”tointroducedifferentinventions.2.use“beusedfor”totalkaboutfunctions(功能).inventionsancientmoderncommonunusualbigsmallfourgreatinventionsinancientChinaprintingcompasspapermakinggunpowder1afourmoderninventionsintheworldInwhatorderdoyouthinktheywereinvented?Thennumberthem[1–4](1=first,4=last).____1876____1885____1927____1971bdacabcdGrandmaAliceListenandmatchtheinventionswiththeyears.1b1876：eighteenseventy-six1876188519271971Talkaboutwhentheinventionswereinvented.A:Whenwas...invented?B:Itwasinventedin...1c187618851927197112341aCheckyourpredictions.____shoeswithspecialheels____shoeswithlights______hotice-creamscoop,

runsonelectricityAlexCarolthreeinterestinginventions2aListenandnumbertheinventions[1-3]intheorderyouhearthem.

1322bListenagainandcompletethechart.InventionWhatisit/aretheyusedfor?shoeswithspecialheels________thestyleoftheshoesshoeswithlightsseeing___________hotice-creamscoop________reallycoldice-creamchangingservinginthedarkn.样式;款式beusedforsth./doing:被用来做Function(功能)2cMakeconversationsusingtheinformationinthechart.A:Whatis/are...usedfor?B:Itis/Theyareusedfor...zipper

n.拉链；拉锁asmallinventiontentsbagsdressesshoessuitcasespencilboxestrousers...Paul:HeyRoy,thesubjectformyschoolprojectis

“Smallinventionsthatchangedtheworld”.Canyouhelpmethinkofaninvention?Roy:Withpleasure!Letmethink...hmm...Iknow!

Thezipper!Paul:Thezipper?Isitreallysuchagreatinvention?Roy:Thinkabouthowoftenit’susedinourdailylives.Youcanseezippersondresses,trousers,shoes,bags..almosteverywhere!Paul:Well,youdoseemtohaveapoint…Roy:Ofcourse!IthoughtaboutitbecauseIsawawebsitelastweek.Thepioneersofdifferentinventionswerelistedthere.Forexample,itmentionedthatthezipperwasinventedbyWhitcombJudsonin1893.Butatthattime,itwasn'tusedwidely.Paul:Really?Sowhendiditbecomepopular?Roy:Around1917.Readtheconversationandanswerthequestions.2d1.Whenwasthezipperinvented?2.Whowasthezipperinventedby?Itwasinventedin

1893.Itwasinventedby

WhitcombJudson.Paul:HeyRoy,thesubjectformyschoolprojectis

“Smallinventionsthatchangedtheworld”.Canyouhelpmethinkofaninvention?Roy:Withpleasure!Letmethink...hmm...Iknow!

Thezipper!Paul:Thezipper?Isitreallysuchagreatinvention?Roy:Thinkabouthowoftenit’susedinourdailylives.Youcanseezippersondresses,trousers,shoes,bags..almosteverywhere!Paul:Well,youdoseemtohaveapoint…Roy:Ofcourse!IthoughtaboutitbecauseIsawawebsitelastweek.Thepioneersofdifferentinventionswerelistedthere.Forexample,itmentionedthatthezipperwasinventedbyWhitcombJudsonin1893.Butatthattime,itwasn'tusedwidely.Paul:Really?Sowhendiditbecomepopular?Roy:Around1917.2dReadagainandfindmoredetails.1.Whydotheythinkitisagreatinvention?2.Wasitusedwidelyatfirst?Ittakestimeforthenewinventiontobecomepopular.No.Itbecamepopulararound1917.Itiswidelyusedinourdailylives.adj.每天的Paul:HeyRoy,thesubjectformyschoolprojectis

“Smallinventionsthatchangedtheworld”.Canyouhelpmethinkofaninvention?Roy:Withpleasure!Letmethink...hmm...Iknow!

Thezipper!Paul:Thezipper?Isitreallysuchagreatinvention?Roy:Thinkabouthowoftenit’susedinourdailylives.Youcanseezippersondresses,trousers,shoes,bags..almosteverywhere!Paul:Well,youdoseemtohaveapoint…Roy:Ofcourse!IthoughtaboutitbecauseIsawawebsitelastweek.Thepioneersofdifferentinventionswerelistedthere.Forexample,itmentionedthatthezipperwasinventedbyWhitcombJudsonin1893.Butatthattime,itwasn'tusedwidely.Paul:Really?Sowhendiditbecomepopular?Roy:Around1917.Listenandrepeat.2dPaul:HeyRoy,thesubjectformyschoolprojectis

“Smallinventionsthatchangedtheworld”.Canyouhelpmethinkofaninvention?Roy:Withpleasure!Letmethink...hmm...Iknow!

Thezipper!Paul:Thezipper?Isitreallysuchagreatinvention?Roy:Thinkabouthowoftenit’susedinourdailylives.Youcanseezippersondresses,trousers,shoes,bags..almosteverywhere!Paul:Well,youdoseemtohaveapoint…Roy:Ofcourse!IthoughtaboutitbecauseIsawawebsitelastweek.Thepioneersofdifferentinventionswerelistedthere.Forexample,itmentionedthatthezipperwasinventedbyWhitcombJudsonin1893.Butatthattime,itwasn'tusedwidely.Paul:Really?Sowhendiditbecomepopular?Roy:Around1917.languagefocus一般过去时的被动语态：was/were+doneWell,youdoseemtohaveapoint…dohaveapoint助动词do在肯定句和祈使句中常用来表示强调有道理ausefulinventionItwasmade