高中英语U4 Cyberspace--Warm-up[ty]北师大版必修二VIP专享VIP免费

U4CyberspaceWarm-upUnitobjectivesDrawstudents’attentiontotheunitobjectivesatthetopofthepage.Askthemiftheyhavewrittenane-mailmessage,readorwrittenInternetpagesand,ifso,todiscusswhattheydidandiftheyhadanyproblems.Askstudentstothinkaboutwhichoftheunitobjectivestheyexpecttofindeasierandwhichtheyexpecttofindmoredifficult.Attheendoftheunit,studentscanseeiftheirpredictionswerecorrect.ResourceusedCassette.BackgroundPictureBisfromthemovieTheTerminator(1984).ItisapictureoftheactorArnoldSchwarzeneggerwhostarredasanunstoppablemachinesentfromthefuturetochangethepast.PictureCisoftheactorKevinCostner.ItisfromthemovieWaterworld(1995).Themovieissetinthefuturewhenthepolarice-capshavemelted.Costnerplaysacharactersearchingfordryland?Csomethingnoonehaseverseen.A.l.(2001)isasciencefictionmoviedirectedbyStevenSpielberg.Thestoryrevolvesaroundtheideathatinthefuture,humanswillcreaterobotsthatareabletofeellove.Inthemovie,ayoungrobot-boyisgiventoarealhumanfamily.Helovesthembuttheydeserthim.Hethenpainfullydiscoversthatheisarobotandsetsoffonajourneytofindawaytobecomereal.JulesVerne(1828-1905)wasaFrenchwriterandapioneerofsciencefiction.Hestudiedgeology,engineeringandastronomywhichgreatlyinfluencedhiswriting.HewroteFromtheEarthtotheMoonin1866,almostacenturybeforeNeilArmstronglandedonthemoon.Inhisnovel,menplantobuildagunbigenoughtoshootarocketintospace.Exercise1■Askstudentstoreadthetextsandtosayiftheyhaveseenanyofthefilmsorreadanyofthebooks?Cand,ifso,totelltheclasswhattheyknowandgivetheiropinions.■Studentsworkingroupsdiscussingwhichpredictionshavealreadycometrueandwhichtheythinkwillcometrueintheirlifetime.Thegroupsthenreportbacktotheclassandseeifthereisgeneralagreement.■Theclassthendiscussanyotherpredictionsfromsciencefictionbooksorfilmsthathavecometrue.KeyWordsrobot,artificialhuman,cyberspace,planet’sclimate,globalwarming,worldflooding,timetravel,virtualreality,virusExercise2■Playthecassetteandaskstudentstomakenotesaboutthepredictions.Answers1makingartificialhumans2floodingindifferentcountries3timetravel4avirusdevelopswhichwehavenopowertostopTapescript1Well,that’saveryinterestingquestion.Itisalreadypossibletomakeartificialbodyparts,butitwon’tbepossibleforaverylongtimetomakeartificialhumansthatcanthinkorfeelinthesamewayaswedo.2Weknowthattheplanet’sclimateischanging.TheEarth’satmosphereisslowlygettingwarmer.Thereisarealdangerthatthesealevelwillgoupandtherewillbefloodingindifferentcountriesintheworld.Thisisalreadyhappeninginsomepartsoftheworld.3Well,itmaysoundsurprising.Imaginethesituationoftwotwins?Cabrotherandsister.Thesistergoesintospaceandtravelsatthespeedoflightfortenyears?CwhenshecomesbacktoEarthsheisthirtyyearsolderthanhertwinbrother!4Unfortunately,thisisaveryrealdangerfortheplanet.Anewviruscoulddevelopthatwehavenopowertostop.Itissomethingwereallyshouldbeworriedabout.■StudentsmatchthedefinitionwithaKeyWord(cyberspace).OptionsPracticeStudentsdevelopthedefinitionpracticeinExercise2.Ingroups,theywritedefinitionsfortwomoreKeyWords.Thegroupsthenreadtheirdefinitionstotherestoftheclasswhohavetoguessthewords.Extension■Askstudentstorecallsciencefictionbooksorfilms.Theyshouldwritedownsentencesaboutthepredictionsmadeinthemanddecidewhethertheyhavealreadycometrue,whethertheymaycometrueduringtheirlifetimeorwhethertheywillnevercometrue.■Writethreecolumnsontheboard:havecometrue,willsooncometrue,willnevercometrue.Havestudentsreadtheirsentencesaloudandhaveaclassdiscussiononwheretoplaceeachprediction.