高中英語Unit4 CYBERSPACE Lesson 1 1北師大版必修2

Unit4CYBERSPACELesson1Teachingaims:Tousethetitleofatexttopredictthecontent.Topractiseusingvocabularyofcyberspace.Topractiseusingwillandgoingtototalkandwriteaboutthefuture.Teachingdifficulties:TorevisePresentSimpleandPresentContinuous.TeachingAids:computerandcassetteTeachingprocedures:I.WarmingupWhatcomputersandinternetbringus?convenient,highefficientComparedto20yearsagohowdoyouthinktechnologywillchangeourlives?Forexample:Goshoppingonline.Needn'tcarrycashandusecreditcards.Insteadofgoingtothebankyoucanuseacomputerandatelephonetopayforbills.Imaginewhathappensinthenexttwentyyears?Isitpossiblethatthecomputergivesusdisaster?Lookatthetitleofthearticle.Whichofthesetopicsdoyouthinkitwillmention?*theInternet*artificialhuman*timetravel*robots*globalwarming*virtualrealityReadthearticlequicklyandcheckyourguesstoquestion2above.Withthedevelopmentofcomputers,ourlifemaychangeinshoppingandcommunicatingwaysThetextinferstousthatworryisnotnecessaryandcomputersandtheInternetonlydogoodtous.Someexpertssayinthefuturewewillnotgotoschoolintheclassroomlikeus.Inthefutureitispossiblethatpeopleliveinanotherworldofouterspace.Thetexttellusyoucandomanythingsbutneedn'tgototheplaceyourself.BecauseoftherapiddevelopmentofInternettelevisionandthemailwillbereplacedbycomputer.Keys:TFTFTTLearningvocabularyMatchthevocabularyfromthetextbelowwiththedefinitions.hacker,chaos,terrorist,theNet(Internet),virtualreality,crashapersonwhoentersotherpeople'scomputerprogrammesinsecretTheuseofcomputerstomakesituationsfeelandlookreal.haveanaccidentbyviolentlyhittingsomething.somewhodoesterriblethingstoharmcountries,putersystemthatallowsmillionsofpeoplearoundtheworldtoshareinformationAterriblesituationinwhicheverythinggoeswrongKeys:1.hacker2.virtualreality3.crash4.terrorist5.theNet(Internet)6.chaosCorrecterrorInthelastthirtyyears,theInternetgrewrapidly.Terroristmay“attack”theworld'scomputers,causechaos,makeplanesandtrainscrash.Itisconvenienttoorderticketsfromtheinternet.In1983,therewereonly200computersconnecttotheInternet.Itisclearwecanuseinternettodoallkindsofthingsathome.Personally,I'moptimisticaboutthefutureofinternet.Associetydevelops,computerswillmakeourlifemuchconvenient.Themailservicemayalsodisappearastheincreasinguseofe-mail.Keys:1.grew改為hasgrown2.make前加and3.order改為book4.connect改為connected5.clear后加that6.of后加the7.much改為more8.as改為withWecanfeelconvenient,wecandoallkindsofthingsfromtheInternetathome,suchasbuybooks,findoutaboutholidayoffers,bookticketsandsoon.Sometraditionalthingswilldisappear.Wemayliveinavirtualworld.Hackercangetintothecomputersofbanksandgovernmentsothatchangedataorstealawayimportantinformation.Terroristswillattacktheworld'scomputers,causechaos,makeplanesandtrainscrashevenandcausenuclearwar.VoiceyouropinionDoyoufeelpessimisticoroptimisticaboutthefutureoftheInternet?Why?LanguagepointsIn1983,therewereonly200computersconnectedtotheInternet.=whichwereconnectedtotheIputer和connect是被動關(guān)系,因此connectedto是過去分詞做定語來修飾computer,相當(dāng)于一個定語從句。Itissurprisingthattherewere3oogoldcoinsburiedunderground.=whichwereburiedunderground.真是令人驚奇，地下埋了300枚金幣。Therearesomanypeoplewatchingthebigfireinthestreet.=whowatchedthebigfireinthestreet.People和watching是主動關(guān)系watching是現(xiàn)在分詞做定語表主動來修飾people相當(dāng)于定語從句。2.Someexpertsarepessimisticaboutthefuture.一些科學(xué)家對（計算機(jī)主宰的）未來表現(xiàn)出悲觀的態(tài)度。bepessimistic/optimisticabout對…悲觀/樂觀I'mratherpessimisticaboutthepresentsituation.我對目前的局勢感到悲觀。ItisclearthatwearegoingtoseeanexplosionofshoppingontheInternet.很顯然，不遠(yuǎn)的將來我們就會看到網(wǎng)上購物的狂潮。It作形式主語，真實主語是that引出的主語從句。=thatwearegoingtoseeanexplosionofshoppingontheInternetisclear.ItisclearthatinthenextfewyearstheEarth'sclimatewillchange.=ThatinthenextfewyearstheEarth'sclimatewillchange...theuseofcomputerswithsoundsandpicturesthatmakeyoufeelasifyouareinarealsituation.（虛擬世界）是計算機(jī)通過聲音和圖像模擬現(xiàn)實，以使人感到仿佛置身于一個真實的空間。asif連詞，仿佛，好像Itsoundsasifshe'sbeenreallyill.聽上去好像她真的病了。Wehavetotakeimmediateaction.我們得馬上采取行動。takeaction采取行動。Wemusttakeactionstopreventthespreadofdisease.我們必須采取行動防止疾病的傳播。LanguageStudyPredictionswillandbegoingtoReadthefollowingsentencesfromthetext.Inpairs,decidewhicha)talksaboutafutureeventwecanpredictfromapresentsituation?b)expressesouropinionsandbeliefsaboutthefuture?…,‘itisclearthatwearegoingtoseeanexplosionofshoppingontheInternet.'Shealsobelievesthat,inthefuture,wewillgetentertainmentfromtheInternetandthattelevisionwillprobablydisappear.‘Personally,Ithinkvirtualrealitywillbecomepartofmodernlife,'…Keys:1.a2.b3.bGrammarSummary1,onp92.1.You'replanningtobuyacomputer.a)Ihopeitwillbecheap.b)Itisgoingtobecheap.It'sthelasttenminutesofabasketballmatchbetweenRussiaandtheUSA.Thescoreis102:56toRussia.a)TheUSAwilllose.b)TheUSAisgoingtolose.Keys:1.a2.bPagePage55exercise4,5and6completethetextwithgoingtoorwillEarthReport!DrCarlWightisanexpertontheenvironment.Hespeakstoourreporter,“ItisclearthatinthenextfewyearstheEarth'sclimate(1)change.I'mafraidthatthisprobablymeansthatmanykindsofanimals,suchastheSouthChinatiger,(2)disappearsoon,Changesinclimate(3)certainlyaffectpeople'slivestoo.Becauseofglobalwarming,theseahasalreadydestroyedpartsofBritain.Itisobviousthatthisdestruction(4)becomemoredangerousinthefuture.Wehavetotakeimmediateaction,orIfearthatlifeonEarth(5)getworse.”Keys:1.isg