0712六级真题

英语六级考试网为参加英语六级的考友提供助力（30minutes）Directions:Forthispart,youareallowed30minutestowriteashortessayentitledDigitalAge.Youshouldwriteatleast150wordsfollowingtheoutlinegivenbelow.1.如今数字化产品得到越来越广泛的使用，并举例2.数字化产品的使用对人工作，学习，生活产生的影响DigitalAge________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________PartIIReadingComprehension(SkimmingandScanning)(15minutes)Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,choosethebestanswerfromthefourchoicesmarked[A],[B],[C]and[D].Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.SevenWaystoSavetheWorldForgettheoldideathatconservingenergyisaformofself-denial—ridingbicycles,dimmingthelights,andtakingfewershowers.Thesedays英语六级考试网为参加英语六级的考友提供助力—orbetter—resultsfromjustafractionoftheenergy.WhenaslumpinbusinesstravelforcedUlrichRǒmertocutcostcostsathisfamily-ownedhotelinGermany,hereplacedhundredsofthehotel’swastefullightbulbs,gettingthesamelightfor80percentlesspower.Heboughtanewwaterboilerwithadigitallycontrolledpump,andwrappedinsulationaroundthepipes.Spendingabout€100,000ontheseandotherimprovements,heslashedhis€90,000fuelandpowerbillby€60,000.Asabonus,thehotel’slowerenergyneedshavereduceditsannualcarbonemissionsbymorethan200metrictons.“Forus,savingenergyhasbeenvery,veryprofitable,”hesays.“Andmostimportantly,we’renotgivingupasinglecomfortforourguests.”Efficiencyisalsoagreatwaytolowercarbonemissionsandhelpslowglobalwarming.Butthebestargumentforefficiencyisitscost—or,moreprecisely,itsprofitability.That’sbecausequicklygrowingenergydemandrequiresimmenseinvestmentinnewsupply,nottomentionthedrainofrisingenergyprices.Nowonderefficiencyhasmovedtothetopofthepoliticalagenda.OnJan.10,theEuropeanUnionunveiledaplantocutenergyuseacrossthecontinentby20percentby2020.LastMarch,Chinaimposeda20percentincreaseinenergyefficiencyby2020.EvenGeorgeW.Bush,theTexasoilman,isexpectedtotalkaboutenergyconversationinhisStateoftheUnionspeechthisweek.Thegoodnewsisthattheworldisfullofproven,cheapwaysto英语六级考试网为参加英语六级的考友提供助力’senergy.There’svirtuallynolimittohowmuchofthatcanbesaved,asprototype“zero-energyhomes”inSwitzerlandandGermanyhaveshown.There’sbeenasurgeinnewwaysofkeepingheatinandcoldout(orviceversa).Themostadvancedinsulationfollowsthelawofincreasingreturns:ifyouaddenough,youcanscaledownoreveneliminateheatingandair-conditioningequipment,loweringcostsevenbeforeyoustartsavingonutilitybills.Studieshaveshownthatgreenworkplaces(onesthatdon’tconstantlyneedtohavetheheatorair-conditionerrunning)havehigherworkerproductivityandlowersickrates.ChangeBulbsLightingeatsup20percentoftheworld’selectricity,ortheequivalentofroughly600,000tonsofcoaladay.Fortypercentofthatpowersold-fashionedincandescentlightbulbs—a19th-centurytechnologythatwastesmostofthepoweritconsumesonunwantedheat.Compactfluorescentlamps,orCFLs,notonlyuse75to80percentlesselectricitythanincandescentbulbstogeneratethesameamountoflight,buttheyalsolast10timeslonger.Phasingoldbulbsoutby2030wouldsavetheoutputof650powerplantsandavoidthereleaseof700milliontonsofcarbonintotheatmosphereeachyear.ComfortZone英语六级考试网为参加英语六级的考友提供助力’senergy.Theopportunitiestosavearevast.InLudwigshafen,GermanchemicalsgiantBASFrunsaninterconnectedcomplexofmorethan200chemicalfactories,whereheatproducedbyonechemicalprocessisusedtopowerthenext.AttheLudwigshafensitealone,suchrecyclingofheatandenergysavesthecompany€200millionayearandalmosthalfitsCO2emissions.NowBASFisdoingthesamefornewplantsinChina.“Optimizing(优化)energyefficiencyisadecisivecompetitiveadvantage,”saysBASFCEOJǔrgenHambrecht.GreenDrivingAquarteroftheworld’senergy—includingtwothirdsoftheannualproductionofoil—isusedfortransportation.Somesavingscomefreeof英语六级考试网为参加英语六级的考友提供助力’stiresproperlyinflated(充气).Gasoline-electrichybrid(混合型)modelsliketheToyotaPriusimprovemileagebyafurther20percentoverconventionalmodels.ABetterF