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1、PartIWriting(30minutes)Thedigitalage1.如今，数字化产品越来越多，如…2.使用数字化产品对于人们学习工作和生活的影响。PartIIReadingComprehension(SkimmingandScanning)(15minutes)SevenwaytoSavetheWorldForgettheoldideathatconservingenergyisaformofself-denial—ridingbicycles,dimmingthelights,andtakingfewershowers.Thesedaysconserva
2、tionisallaboutefficiency:gettingthesame—orbetter—resultsfromjustafractionoftheenergy.WhenaslumpinbusinesstravelforcedUlrichRamertocutcostsathisfamily—ownedhotelinGermany,hereplacedhundredsofthehotel’swastefullightbulbs,gettingthesamelightfor80percentlesspower.Heboughtanewwaterboilerwi
3、thadigitallycontrolledpump,andwrappedinsulationaroundthepipes.Spendingabout￡100,000ontheseandotherimprovements,heslashedhis￡90,000fuelandpowerbillby￡60,000.Asabonus,thehotel’slowerenergyneedshavereduceditsannualcarbonemissionsbymorethan200metrictons.“Forus,savingenergyhasbeenvery,very
4、profitable,”hesays.“Andmostimportantly,we’renotgivingupasinglecomfortforourguests.”Efficiencyisalsoagreatwaytolowercarbonemissionsandhelpslowglobalwarming.Butthebestargumentforefficiencyisitscost—or,moreprecisely,itsprofitability.That’sbecausequicklygrowingenergydemandrequiresimmensei
5、nvestmentinnewsupply,nottomentionthedrainofrisingenergyprices.Nowonderefficiencyhasmovedtothetopofthepoliticalagenda.OnJan.10,theEuropeanUnionunveiledaplantocutenergyuseacrossthecontinentby20percentby2020.LastMarch,Chinaimposeda20percentincreaseinenergyefficiencyby2020.EvenGeorgeW.Bus
6、h,theTexasoilman,isexpectedtotalkaboutenergyconservationinhisStateoftheUnionspeechthisweek.Thegoodnewsisthattheworldisfullofproven,cheapwaystosaveenergy.Herearetheseventhatcouldhavethebiggestimpact.InsulateSpaceheatingandcoolingeatsup36percentofalltheworld’senergy.There’svirtuallynoli
7、mittohowmuchofthatcanbesaved,asprototype“zero-energyhomes”inSwitzerlandandGermanyhaveshown.There’sbeenasurgeinnewwaysofkeepingheatinandcoldout(orviceversa).Themostadvancedinsulationfollowsthelawofincreasingreturns:ifyouaddenoughyoucanscaledownoreveneliminateheatingandair-conditioninge
8、quipm
