九年级英语全册 Unit 6 When was it invented Section A（1a-2d）课件 新人教版 (2).ppt

Unit6Whenwasitinvented?TheFirstPeriodSectionA(1a-2d),1a,Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem1-4(1=first,4=last).,A:IthinktheTVwasinventedbeforethecar.B:Well,IthinktheTVwasinventedafterthecar.,1,2,3,4,1b,Listenandmatchtheinventionswiththeyears.,_1876_1885_1927_1971,d,a,c,b,1c,StudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.,A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.,hotice-creamscoop,runsonelectricity,shoeswithlights,1,shoeswithspecialheels,2,3,2a,Listenandnumbertheinventions1-3intheorderyouhearthem.,2b,Listenagainandcompletethechartbelow.,changing,inthedark,serving,2c,Makeconversationsusingtheinformationin2b.,A:Whataretheyusedfor?B:Theyreusedfor.,Paul:HeyRoy,thesubjectformyschoolprojectis“Smallinventionsthatchangedtheworld.”Canyouhelpmethinkofaninvention?Roy:Withpleasure!Letmethink.hmm.Iknow!Thezipper!Paul:Thezipper?Isitreallysuchagreatinvention?Roy:Thinkabouthowoftenitsusedinourdailylives.Youcanseezippersondresses,trousers,shoes,bags.almosteverywhere!,2d,Role-playtheconversation.,Paul:Well,youdoseemtohaveapoint.Roy:Ofcourse!IthoughtaboutitbecauseIsawawebsitelastweek.Thepioneersofdifferentinventionswerelistedthere.Forexample,itmentionedthatthezipperwasinventedbyWhitcombJudsonin1893.Butatthattime,itwasntusedwidely.Paul:Really?Sowhendiditbecomepopular?Roy:Around1917.,1.invent的用法inventv.发明,inventionn.发明,inventorn.发明者。e.g.:Edisonwasagreatinventor.Heinventedalotofthings.【辨析】invent,discover,find与findoutinvent意为“发明，创造”，主要通过想象、研究、劳动创造出前所未有的东西，尤指科技上的发明创造。discover指发现或偶然发现原来就存在但一直未被认识的事物。find强调寻找的结果，即“找到”，通常指偶然发现。findout指经过观察、调查，把某事、某物查出来，搞清楚、弄明白。,LanguagePoints,2.Isitreallysuchagreatinvention?（教材第42页）such形容词，意为“这样的，如此的”，常用在句中作定语，其结构为“such(a/an)+adj.+n.”。e.g.:Theresnosuchthingasafreelunch.Whydoyoubuysuchexpensiveclothes?3.Thinkabouthowoftenitsusedinourdailylives.（教材第42页）daily形容词，意为“每日的，日常的”，用作lives的定语。e.g.:Whatisyourdailywork?daily还可以作名词，意为“日报”。PeoplesDaily人民日报ChinaDaily中国日报,一、单项选择。()1.Flashlightcanbeused_clearlyinthedark.A.forseeingB.toseeingC.lookingD.forlookingat()2.Whenwasthecarinvented?It_in1895.A.inventedB.isinventedC.wasinvented,A,C,Exercise,()3.Thecomputerwasinvented_lives.A.asourdayB.inourdayC.asoureverydayD.inourdaily()4.Computeris_agreatinventionthatits_theworldalot.A.so;changingB.such;changedC.such;changeD.so;changed,D,B,二、用所给词的适当形式填空。1.Theteachersoffice_(clean)byusyesterday.2.The_(invent)hasalotof_(invent).3.MP3isusedfor_(play)music.4.Canyouhelpme?Wi