Lesson1Tomorrow’sWorld.ppt

北师大版高一(必修2)Unit4,英语课件,Lesson1TomorrowsWorld,Comparedto10yearsago,howdoyouthinktechnologyhaschangedourlives?Forexample:,smart,convenient,multi-functional,sendSMS,call,alarmclock,games,takephotos,mp3,goonline,typicalcellphone,Onlyforcalls,Haveyoueverseensuchacamera?,Digitalcamera,gramophone,mp3,walkman,mp4,Canyouimaginewhatacomputerlookedlikeinthe1980s?,Butinthe21st.century,1.Imaginewhathappensinthenexttwentyyears?2.Isitpossiblethatthecomputergivesusdisaster?,Lookatthetitleofthearticle.Whichofthesetopicsdoyouthinkitwillmention?,*theInternet*artificialhuman*timetravel*robots*globalwarming*virtualreality,Readthearticlequicklyandcheckyourguesstoquestion2above.,Withthedevelopmentofcomputers,ourlifemaychangeinshoppingandcommunicatingways.Thetextinferstousthatworryisnotnecessary,computersandtheInternetonlydogoodtous.Someexpertssayinthefuturewewillnotgotoschoolintheclassroomlikeus.,TrueorFalse,T,F,T,4.Inthefutureitispossiblethatpeopleliveinanotherworldofouterspace.5.Thetexttellusyoucandomanythingsbutneedntgototheplaceyourself.6.BecauseoftherapiddevelopmentofInternettelevisionandthemailwillbereplacedbycomputer.,F,T,T,Learningvocabulary,Matchthevocabularyfromthetextbelowwiththedefinitions.,hacker,chaos,terrorist,theNet(Internet),virtualreality,crash,Apersonwhoentersotherpeoplescomputerprogrammesinsecret,hacker,Theuseofcomputerstomakesituationsfeelandlookreal,virtualreality,Haveanaccidentbyviolentlyhittingsomething,crash,Someonewhodoesterriblethingstoharmcountries,governments,andpeople.,terrorist,Computersystemthatallowsmillionspeoplearoundtheworldtoshareinformation,theNet,Aterriblesituationinwhicheverythinggoeswrong.,chaos,Inthelastthirtyyears,theInternetgrewrapidly.2.Terroristmay“attack”theworldscomputers,causechaos,makeplanesandtrainscrash.3.Itisconvenienttoorderticketsfromtheinternet.,hasgrown,and,book,Correcterror,4.In1983,therewereonly200computersconnecttotheInternet.5.Itisclearwecanuseinternettodoallkindsofthingsathome.6.Personally,Imoptimisticaboutthefutureofinternet.,connected,that,the,7.Associetydevelops,computerswillmakeourlifemuchconvenient.8.Themailservicemayalsodisappearastheincreasinguseofe-mail.,more,with,1.Whatpossiblechangesdosomeexpertsbelievetheinternetcanbringtoourlives?,Questions:,Wecanfeelconvenient,wecandoallkindsofthingsontheInternetathome,suchasbuybooks,findoutaboutholidayoffers,bookticketsandsoon.Sometraditionalthingswilldisappear.Wemayliveinavirtualworld.,2.Whyaresomeexpertspessimisticaboutthefuture?,Hackercangetintothecomputersofbanksandgovernmentsothatchangedataorstealawayimportantinformation.,Terroristswillattacktheworldscomputers,causechaos,makeplanesandtrainscrashevenandcausenuclearwar.,pessimistic,hackers,Cyberterrorists,now,inthefuture,cybercriminal,optimistic,inthefuture,getentertainment,TV&mailservicewilldisappear,already,inthenextfewyears,shopontheInternet,getinformation,buybooks,findoutholidayoffers,booktickets,Voiceyouropinion,DoyoufeelpessimisticoroptimisticaboutthefutureoftheInternet?Why?,Languagepoints,In1983,therewereonly200computersconnectedtotheInternet.,computer和connect是被动关系,因此connectedto是过去分词做定语来修饰computer,相当于一个定语从句。,=whichwereconnectedtotheInternet.,Itissurprisingthattherewere300goldcoinsburiedunderground.=whichwereburiedunderground.真是令人惊奇,地下埋了300枚金币。Therearesomanypeoplewatchingthebigfireinthestreet.=whoarewatchingthebigfireinthestreet.,People和watching是主动关系watching是现在分词做定语表主动来修饰people相当于定语从句。,2.Someexpertsarepessimisticaboutthefuture.一些科学家对(计算机主宰的)未来表现出悲观的态度。bepessimistic/optimisticabout对悲观/乐观Imratherpessimisticaboutthepresentsituation.我对目前的局势感到悲观。,.,3.ItisclearthatwearegoingtoseeanexplosionofshoppingontheInternet.很显然,不远的将来我们就会看到网上购物的狂潮。It作形式主语,真实主语是that引出的主语从句。=thatwearegoingtoseeanexplosionofshoppingontheInternetisclear.,ItisclearthatinthenextfewyearstheEarthsclimatewillchange.=ThatinthenextfewyearstheEarthsclimatewillchange.,4.theuseofcomputerswithsoundsandpicturesthatmakeyoufeelasifyouareinarealsituation.(虚拟世界)是计算机通过声音和图像模拟现实,以使人感到仿佛置身于一个真实的空间。asif连词,仿佛,好像Itsoundsasifshesbeenreallyill.听上去好像她真的病了。,5.Wehavetotakeimmediateaction.我们得马上采取行动。takeaction采取行动Wemusttakeactionstopreventthespreadofdisease.我们必须采取行动防止疾病的传播。,Predictionswillandbegoingto,Readthefollowingsentencesfromthetext.Inpairs,decidewhich.talksaboutafutureeventwecanpredictfromapresentsituation?expressesouropinionsandbeliefsaboutthefuture?,LanguageStudy,1.,itisclearthatwearegoingtoseeanexplosionofshoppingontheInternet.2.Shealsobelievesthat,inthefuture,wewillgetentertainmentfromtheInternetandthattelevisionwillprobablydisappear.3.Personally,Ithinkvirtualrealitywillbecomepartofmodernlife,a,b,b,Whichcommentisbetterineachsituation?,Youreplanningtobuyacomputer.a)Ihopeitwillbecheap.b)Itisgoingtobecheap.,2.ItsthelasttenminutesofabasketballmatchbetweenRussiaandtheUSA.Thescoreis102:56toRussia.a)TheUSAwilllose.b)TheUSAisgoingtolose.,a)Ihopeitwillbecheap.,b)TheUSAisgoingtolose.,Completethetextwithgoingtoorwill.,EarthReport!DrCarlWightisanexpertontheenvironment.Hespeakstoourreporter,“ItisclearthatinthenextfewyearstheEarthsclimate(1)_change.Imafraidthatthisprobablymeansthatmanykindsofanimals,suchastheSouthChinatiger,(2)_disappearsoon,isgoingto,aregoingto,Changesinclimate(3)_certainlyaffectpeopleslivestoo.Becauseofglobalwarming,theseahasalreadydestroyedpartsofBritain.Itisobviousthatthisdes