Unit 4 Lesson 1 课件 北师大版必修第二册

WelcomeNo.2MiddleSchoolofTaihu:ZhengQingzhenLead-inInthepast20years,howdoyouthinktechnologyhaschangedourlives?Forexample:smartconvenientmulti-functionalsendSMS,call,alarmclock,games,takephotos,mp3,goonline…typicalcellphoneOnlyforcallsgramophonemp3walkmanmp4Canyouimaginewhatacomputerlookedlikeinthe1980s?Butinthe21st.century,…getnewfilmsontheInternetgoshoppingonlinebankonlinehavevirtualrealityschoolsfindhusbandsorwivesontheInternetPre-reading

Question:

Sincethingshavechangedsomuch,canyouimaginewhatourfutureworldwilllooklike?Willtheycometrue?

makingartificialhumanstimetravelglobalwarmingworldfloodinghackerscomputervirusLesson1

Tomorrow'sWorldDoyoulikeplayingcomputer?Whatdoyouoftenuseyourcomputerfor?SinceyoulikesurfingontheInternet,canyoutellmeawordthatdescribestheplacewheremessages,Information,pictures,etc.aresentfromonecomputertoanother.cyberspaceTheFutureofCyberspaceFirst-reading:ListeningandtheheadingsTask.

Matchtheparagraphswiththeseheadingsintwominutes.PessimisticopinionsOurfutureinvirtualrealityOptimisticopinionsTheInternetgrowth1234Thestructureofthearticle:ThegrowthoftheInternetPessimisticopinionsOptimisticopinionsVirtualrealityIntroductionDifferentopinionsPredictionSecond-reading:

vocabulary

Apersonwhoentersotherpeople’scomputerprogrammesinsecrethackerNewwords:Newwords:TheuseofcomputerstomakesituationsfeelandlookrealvirtualrealityNewwords:HaveanaccidentbyviolentlyhittingsomethingcrashNewwords:Someonewhodoesterriblethingstoharmcountries,governments,andpeople.terroristNewwords:ComputersystemthatallowsmillionsofpeoplearoundtheworldtoshareinformationtheNetNewwords:Aterriblesituationinwhicheverythinggoeswrong.chaos*crash

*terrorist*virtualreality*hacker*theNet*chaos*电脑黑客*模拟现实*使撞毁*恐怖分子*网络*混乱,无秩序Newwords:Third-reading:ReadthepassagecarefullyandfinishthefollowingtasksPara1:Fillintheblanksbelow:

Inthelastthirtyyears,theInternethas_________________.grownrapidlyIn1983only______computersconnectedtotheInternetNowtherearearound_________Inthefuturethe________isgoingtocontinue20050milliongrowthReadparagraph2and3,and

findoutdetailedinformationofthetwodifferentopinions.Tip:wecandoitaccordingtothetime“now”and“inthefuture”.

pessimistichackersCyberterroristsnowinthefuturecybercriminaloptimisticinthefuturegetentertainment

TV&mailservicewilldisappearalreadyshopontheInternetinthenextfewyearsgetinformationbuybooksfindoutholidayoffersbooktickets2.Whatcanwedointhefuture*workinvirtualoffices*shopinvirtualsupermarkets*studyinvirtualschools1.What’svirtualreality?Theuseofcomputerswithsoundsandpicturesthatmakeyoufeelasifyouareinarealsituation.Para4:usingvirtualreality?Inyouropinion,isthewriteroptimisticorpessimisticaboutthefutureoftheInternet?

Voiceyouropinion(groupwork)

DoyoufeelpessimisticoroptimisticaboutthefutureoftheInternet?Why?Howcanyoumakegooduseofcyberspace?sayingComputerisneithergoodnorbad,butalldependsonwhatuseismadeofit.金钱(电脑）本身无好坏，要看怎样利用它。SummaryThearticletalksabout_____________.Differentpeoplehavedifferentideas.Someare__________.Theyworryaboutthecrime,hackersandterroristsincyberspace.However,manypeopleare__________.Theythinkcomputercanmakeourlifeeasier.Peoplecanbuybooks,____tickets,etc.Someexpertsbelievethatwewillliveina____________inthe