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

《高中英语 Unit4 Lesson1 Tomorrow s world课件 北师大版必修2 北师大版必修.ppt》由会员上传分享，免费在线阅读，更多相关内容在PPT专区-天天文库。

1、WelcometoourschoolUnit4CyberspaceLesson1Tomorrow’sWorldTheFutureofCyberspaceStep1WarmingupImaginelifeinthenexttwentyyears.Howdoyouthinktechnologywillchangeourlives?Example:Allcarswillhavecomputers.Goshoppingonline.Needn’tcarrycashandusecreditcards.Insteadofgoingtotheba

2、nkyoucanuseacomputerandatelephonetopayforbills.havevirtualrealityschoolscommunicatebye-mailgetnewfilmsontheInternetgetallourentertainmentontheInternetreadnewspapersontheInternet.Lookatthetitleofthearticle.Whichofthesetopicsdoyouthinkitwillmention?*theInternet*artificia

3、lhuman*timetravel*robots*globalwarming*virtualrealityStep2Pre-readingListentotherecordofthearticleandcheckyourguesstoquestion2above.theInternetvirtualrealityLearningvocabularyReadthearticleandmatchthevocabularyfromthetextbelowwiththedefinitions.hacker,chaos,terrorist,t

4、heNet(Internet),virtualreality,crash1、apersonwhoentersotherpeople’scomputerprogrammesinsecrethacker2.Theuseofcomputerstomakesituationsfeelandlookrealvirtualreality3.haveanaccidentbyviolentlyhittingsomething4.someonewhodoesterriblethingstoharmcountries,governmentsandpeo

5、plecrashterrorist5.computersystemthatallowsmillionsofpeoplearoundtheworldtoshareinformationtheNet6.AterriblesituationinwhicheverythinggoeswrongchaosStep3While-readingListentothetapeagainandmatchtheparagraphswiththeseheadings.a)Pessimisticopinionsb)Seeingthefuturec)Opti

6、misticopinionsd)TheInternetgrowth2431Questions:Readthepassagecarefullyandanswerthefollowingquestions.Whyaresomeexpertspessimisticaboutthefuture?1.Oneworryiscrimeincyberspace.Younghackerscangetintothecomputersofbanksandgovernments.3.Terrorists“attack”theworld’scomputers

7、,causechaos,andmakeplanesandtrainscrash.2.WhatpossiblechangesdosomeexpertsbelievetheInternetcanbringtoourlives?already1.Userscanbuybooks,findoutaboutholidayoffers,bookticketsandgetallsortsofinformationfromtheInternet.Inthenextfewyears2.Wearegoingtoseeahugegrowthinshopp

8、ingontheInternet.WewillgetentertainmentfromtheNet.TVandmailservicemaydisappear.3.Howisourfutureinvirtualreality?1.The