英语演讲稿学习教案.ppt
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英语演讲稿学习教案.ppt

英语演讲稿学习教案.ppt

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Inthelastthirtyyears,theinternethasgrownrapidly,In1983,therewereonly200computerconnectedtotheinternet;nowtherearearound50millionandthisgrowthisclearlygoingtocotinue.Someexpertsarepessimisticaboutthefuture.Oneworryiscrimeincyberspace.Evennow,younghackerscangetintothecomputerofbanksandgoverments.Inthefuture,terroristsmay“attack”theworld’scomputers,causechaos,andmakeplanesandtrainscrash.However,manypeopleareoptimisticAboutfutureoftheinternet.Already,userscanbuybooks,findoutaboutholidayoffers,bookticketsandgetallsortsofinformationfromtheinternet.Someexpertsseeourfutureinvirtualrealitythattheuseofcomputerswithsoundsandpicturesthatmakeyoufeelasifyouareinarealsituation.Personally,Ithinkvirtualrealitywillbecomeapartofmondernlife.ThankYou感谢您的观看(guānkàn)!内容(nèiróng)总结