高中英语 Unit4 Lesson1 Tomorrow s world课件 北师大版必修2 北师大版

WelcometoourschoolUnit4Lesson1Tomorrow’sWorldStep1WarmingupImaginelifeinthenexttwentyyears.Howdoyouthinktechnologywillchangeourlives?Example:Allcarswillhavecomputers.Goshoppingonline.Needn’tcarrycashandusecreditcards.Insteadofgoingtothebankyoucanuseacomputerandatelephonetopayforbills.havevirtualrealityschoolscommunicatebye-mailgetnewfilmsontheInternetgetallourentertainmentontheInternetreadnewspapersontheInternet.Lookatthetitleofthearticle.Whichofthesetopicsdoyouthinkitwillmention?*theInternet*artificialhuman*timetravel*robots*globalwarming*virtualrealityStep2Pre-readingListentotherecordofthearticleandcheckyourguesstoquestion2above.theInternetvirtualrealityLearningvocabularyReadthearticleandmatchthevocabularyfromthetextbelowwiththedefinitions.hacker,chaos,terrorist,theNet(Internet),virtualreality,crash1、apersonwhoentersotherpeople’scomputerprogrammesinsecrethacker2.Theuseofcomputerstomakesituationsfeelandlookrealvirtualreality3.haveanaccidentbyviolentlyhittingsomething4.someonewhodoesterriblethingstoharmcountries,governmentsandpeoplecrashterrorist5.computersystemthatallowsmillionsofpeoplearoundtheworldtoshareinformationtheNet6.AterriblesituationinwhicheverythinggoeswrongchaosStep3While-readingListentothetapeagainandmatchtheparagraphswiththeseheadings.a)Pessimisticopinionsb)Seeingthefuturec)Optimisticopinionsd)TheInternetgrowth2431Questions:Readthepassagecarefullyandanswerthefollowingquestions.1.Whyaresomeexpertspessimisticaboutthefuture?1.Oneworryiscrimeincyberspace.2.Younghackerscangetintothecomputersofbanksandgovernments.3.Terrorists“attack”theworld’scomputers,causechaos,andmakeplanesandtrainscrash.2.WhatpossiblechangesdosomeexpertsbelievetheInternetcanbringtoourlives?already1.Userscanbuybooks,findoutaboutholidayoffers,bookticketsandgetallsortsofinformationfromtheInternet.Inthenextfewyears2.WearegoingtoseeahugegrowthinshoppingontheInternet.WewillgetentertainmentfromtheNet.TVandmailservicemaydisappear.3.Howisourfutureinvirtualreality?1.Theuseofcomputerswithsoundsandpicturesthatmakesyoufeelasifyouareinarealsituation.2.Virtualrealitywillbecomeapartofmodernlife.Peopleliveandworkinvirtualoffices,shopinvirtualsupermarketsandstudyinvirtualschools1.Inthelastthirtyyears,theInternetgrewrapidly.2.Terroristmay“attack”theworld’scomputers,causechaos,makeplanesandtrainscrash.3.Itisconvenienttoorderticketsfromtheinternet.hasgrown∧andbookCorrecttheerrorsofthesentences.Step4Postreading4.In1983,therewereonly200computersconnecttotheInternet.5.Itisclearwecanuseinternettodoallkindsofthingsathome.6.Personally,I’moptimisticaboutthefutureofinternet.connected∧that∧the7.Associetydevelops,computerswillmakeourlifemuchconvenient.8.Themailservicemayalsodisappearastheincreasinguseofe-mail.morewithUsefulExpressions1.affectourlivesLine12.inthelastthirtyyears=inthepastthirtyyears3.inthepastLine44.connecttoLine105.bepessimisticabout在过去的三十年里在过去连接到对……悲观影响着我们的生活Line216.beoptimisticaboutLine247.findoutholidayoffersLine258.allsortsofLine329.ahugegrowthofshoppingontheNetLine3610.getentertainmentLine3911.mailserviceLine4612asif=asthough对……乐观各种各样的网上购物大增长进行娱乐活动邮政服务似乎，好像查找节日特惠价Homework1.Retellthetext.2.Discussion:DoyoufeelpessimisticoroptimisticaboutthefutureoftheInternet?Why?