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1、Thedisappearingoccupations——owenyang参与此次英语ppt制作的有关人员ppt制作：杨腾，王林杰收集材料：王林杰，张琳，丁群英，严婷婷，张永清演讲：许东Timefilesandsomanygreatchangeshavehappenedinmylife.Inmychildhood,thereweremanyinterestingandunforgettablepeoplewhosejobsaffectedourlifesomuch.Thepeoplearestillthere,however,theirjobshavebeencha
2、ngedduetothesocietyandlifestylesnowadays.Disappearingjobs,disappearingmemorythedevelopmentofscienceandtechnologythedevelopmentofscienceandtechnologythechangeofsomeoccupationsthedevelopmentofscienceandtechnologythechangeofsomeoccupationsthedisappearanceofsomeoccupationsthedevelopmentof
3、scienceandtechnologythechangeofsomeoccupationsthedisappearanceofsomeoccupationsengendercreatecauseleadtogenerategiverisetoarousebringabout亲，你觉得 消失的行业 有哪些呢？ForexampleBoattrackerBecauseofitsriskandfast-runningwater,itwasimpossibleforaboattravelingtheThree-Gorgeupstreamwithoutlaboreffort
4、totowitup.Asaresult,aspecialkindofboat-worker,so-calltheboat-trackerbecamethecruxofthenavigationinThree-Gorge.ForexamplerepairpenThefountainpenrepairinghasbeenarelativelypooroccupation.Theprofitoffountainpenrepairinghasbeenverylow.Ontheonehand,thepriceoffountainpenwascheap.Ontheotherh
5、and,theusersoffountainpenwerestudentswhowerealwayspoor.ForexamplePeddlerPeddlerssellasmallbatchofgroceriesdoor-to-door,whichisconvenientforpeople.Theircostandprofitareverysmall,sosomeofthemdon’tpayforthebusinesstax.And?? 还有呢？？Bequiet！！ ListentomecarefullymanualpopcornmachineThehand-cr
6、ankedpopcornBriefintroductionofPopcornPopcorn,akindofpuffedfood,ispopularwithyoungpeople,andcanbeusedfordailysnacks.Thepopcornhasmanyunexpectedchanges,whichisamazingsnacksfordrinking.ThehistoryofPopcornPopcornisakindofancientpuffedfood.It’sorigincanbetracedbacktotheSongDynasty.Popcorn
7、iscrispandeasytodigest,anditcanbeusedasadailydelicioussnacks.TheinventionofpopcornnotonlyreflectstherichandcolorfuloftheChinesediet,butithasadeepermeaning,whichistocreateafoodprocessingmethodofpuffedfood.Itcanbesaidthatthisprocessingmodeofpopcornthousandsofyearsagoistheancestorsofvari
8、etyof
