九年级英语全册 Unit 6 When was it invented Section A（1a2d）课件 （新版）人教新目标版.ppt

,sectiona1a-2d,unit6,whenwasitinvented?,doyouknowwhattheseinventionsare?,doyouknowwhotheseinventorsare?,karlbenz,alexanderbell,j.l.baird,karlbenzinventedthefirstcarin1885.,thefirstcarwasinvented(bykarlbenz)in1885.,thefirsttelephonewasinvented(bybell)in1876.,bellinventedthefirsttelephonein1876.,thefirsttelevisionwasinvented(byj.l.baird)in1927.,j.l.bairdinventedthefirsttelevisionin1927.,lookatthethingsbelow.inwhatorderdoyouthinktheywereinvented?discussthemwithyourgroup.thennumberthem1-4.,1a,2,3,1,4,ithinkthetvwasinventedbeforethecar.,well,ithinkthetvwasinventedafterthecar.,ithinkthetelephonewasinventedbeforethecomputer.,well,iagreewithyou.,listenandmatchtheinventionswiththeyears.,1b,_1876_1885_1927_1971,d,a,c,b,studentb,coverthedates.studenta,askstudentbwhenthethingsinthepicturein1bwereinvented.thenchangerolesandpracticeagain.,1c,whenwasthetelephoneinvented?,ithinkitwasinventedin1876.,whenwasthecarinvented?,itwasinventedin1885.,whenwasthetvinvented?,itwasinventedin1927.,heeln.鞋跟;足跟,scoopn.勺;铲子,electricityn.电;电能,stylen.样式;款式,presentation,listenandnumbertheinventions1-3intheorderyouhearthem.,2a,_shoeswithspecialheels_shoeswithlights_hotice-creamscoop,runsonelectricity,1,3,2,listenagainandcompletethechartbelow.,2b,changing,serving,inthedark,makeconversationsusingtheinformationin2b.,whataretheshoeswithlightsusedfor?,2c,theyreusedforseeinginthedark.,whatarehotice-creamscoopusedfor?,theyreusedforservingforreallycoldice-cream.,whatareshoeswithspecialheelsusedfor?,theyreusedforchangingthestyleoftheshoes.,readthedialogueandanswerthequestions.,whatisthesubjectfortheirschoolproject?2.whatkindofinventiondoesroythinkof?3.whydoesroythinkitisagreatinvention?4.whoandwhenwasthezipperinvented?5.whendidthezipperbecomepopular?,smallinventionsthatchangedtheworld.,thezipper.,becauseitisoftenusedinourdailylives.,whitcombjudsonin1893.,around1917.,2d,role-playtheconversation.,heyroy,thesubjectformyschoolprojectis“smallinventionsthatchangedtheworld.”canyouhelpmethinkofaninvention?,mypleasure!letmethinkhmmiknow!thezipper!,n.项目;工程,n.高兴;愉快,n.拉链,role-playtheconversation.,thezipper?isitreallysuchagreatinvention?,thinkabouthowoftenitsusedinourdailylives.youcanseezippersondresses,trousers,shoes,bagsalmosteverywhere!,adj.每日的；日常的,well,youdoseemtohaveapoint,ofcourse!ithoughtaboutitbecauseisawawebsitelastweek.thepioneersofdifferentinventionswerelistedthere.,n.网站,n.先锋;先驱,v.列表;列清单n.名单;清单,forexample,itmentionedthatthezipperwasinventedbywhitcombjudsonin1893.butatthattime,itwasntusedwidely.,v.提到;说到,really?sowhendiditbecomepopular?,around1917.,单项选择,sweatersareusedfor_warm.a.togiveb.tokeepc.givingd.keeping2._doyouthinkthecomputerwasinventedby?a.whenb.whatc.whod.why3.shedliketohaveamobilephone_shecouldcommunicatewithherfriends.a.thoughb.untilc.unlessd.because,d,c,d,4.doestheboyenjoy_musicwithhismp4allday?a.tohearb.hearingtoc.t