人教版九年级上册英语教学课件pptUnit6SectionA第一课时

SectionA(1a-2d)学练优九年级英语（RJ）教学课件Unit6Whenwasitinvented?学习目标Keywords:heel,scoop,electricity,style,project,pleasure,zipper,daily,website,pioneer,list,mention,Keysentences:1.—Whenwasthetelephoneinvented?—Ithinkitwasinventedin1876.2.—Whataretheyusedfor?—Theyareusedfor…Passivevoice(pasttense)WhataretheFourGreatInventionsinancientChina?Doyouknow?LeadinChinesefourgreatancientinventionscompassgunpowderprintingPapermakingModerninventionscalculatorTalkabouttheinventions(发明).Whichonedoyouthinkisthemosthelpfulinourdailylife?computercarcalculatorlaptoptelephonecellphoneradioA:IthinktheTVwasinventedbeforethecar.B:Well,IthinktheTVwasinventedafterthecar.Talkaboutwithyourpartner.A:Ithinkthecalculatorwasinventedbeforethecomputer.B:Well,Ithinkthecalculatorwasinventedafterthecomputer.Talkaboutwithyourpartner.Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4](1=first,4=last)1234PresentationListenandmatchtheinventionswiththeyears.abcdWhenwasthe...invented?1876188519271971acbd1bStudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.Whenwasthetelephoneinvented?Ithinkitwasinventedin1876.1cWhenwasthecarinvented?Itwasinventedin1885.WhenwastheTVinvented?Itwasinventedin1927.Whenwasthecomputerinvented?Itwasinventedin1971.Listenandnumbertheinventions[1-3]intheorderyouhearthem.312___shoeswithspecialheels___shoeswithlights___hotice-creamscooprunsonelectricity2aInventionWhatisit/aretheyusedfor?shoeswithspecialheels________thestyleoftheshoesshoeswithlightsseeing___________hotice-creamscoop________reallycoldice-creamListenagainandcompletethechart.changingservinginthedark2bMakeconversationsusingtheinformationin2b.Whataretheshoeswithlightsusedfor?They’reusedforseeinginthedark.2cWhatarehotice-creamscoopusedfor?They’reusedforservingforreallycoldice-cream.Whatareshoeswithspecialheelsusedfor?They’reusedforchangingthestyleoftheshoes.Role-playtheconversation.Readthepassagequicklyandanswerthequestions.1.Whatisthesubjectfortheirschoolproject?2.WhatkindofinventiondoesRoythinkof?Smallinventionsthatchangedtheworld.Thezipper.2d3.WhydoesRoythinkitisagreatinven-tion?4.Whoandwhenwasthezipperinvented?5.Whendidthezipperbecomepopular?Becauseitisoftenusedinourdailylives.WhitcombJudsonin1893.Around1917.1.Well,youdoseemtohaveapoint…haveapoint有道理e.g.Iadmit(that)youhaveapoint.我承认你有理。LanguagePoints2.Theyareusedforseeinginthedark.beusedfordoingsth.表示“被用来做某事”。与beusedtodosth.同义。表示用途、目的。e.g.Thiscomputerisusedtocontrolallthemachines.这台电脑是用来控制所有机器的。Doyouknowwhatthistoolisusedfor?你知道这个工具是用来做什么的?3.Thinkabouthowoftenit’susedinourdailylives.thinkabout表示“考虑，想起”。e.g.Heisthinkingabouttravellinginthesummerholidays.他正在考虑暑假旅游的事。Shewasthinkingaboutherchildhooddays.她正回想她的童年时期。【拓展】有关think的短语thinkof指“考虑,记忆,记起”Ican’tthinkofhisnameatthemoment.我一时想不起他的名字。thinksth.over指“仔细想,审慎思考,作进一步考虑”PleasethinkoverwhatIsaid.请仔细考虑我说的话。thinksth.out指“想通,想出,熟思”Hethoughtoutanewidea.他想出了一个新主意。1.用所给单词的正确形式填空：1.Whenthetelephone(invent)?2.Thecomputercanusdomathproblems(help).inventedwashelpExercises3.Inthoseday,thewomancouldn't_______(afford)aTVbecausetheywerereallyexpensive.4.Afriendof(I)cametoseemelastweek.5.Ithinkyouneed(take)ahistoryclass.affordminetotake2.单项选择()1.Thekindofcupisused_______drinking.A.toB.asC.byD.for()2.Mymotherandmysisterkeptontalking,butmyfather________silentallthetime.A.gotB.keptC.turnedD.lookedDB()3.Ithinktheshortstory______byLuXun.A.iswritingB.iswrittenC.writtenD.waswritten()4.—Who_____theelectriclightlamp_____?—Edison.A.was;inventedB.is;inventedC.was;inventedbyD.did;inventedbyDCSummary1.Talkedabouttheinventedtime,inventorsandtheusageofsomeinventions.2.UsedthePassiveVoice(pasttense)totalkaboutthehistoryofsomeinventions.Homework1.Previewthepassagein3a.2.Lookupsomeinformationaboutsomefamousinventions.Thankyou!更多精彩内容，微信扫描二维码获取扫描二维码获取更多资源