2007.12六级真题.doc

2007年12月大学英语六级考试真题PartI Writing (30minutes),数字化产品越来越多,如…。prehension(SkimmingandScanning)(15minutes)                         SevenwaytoSavetheWorld  Forgettheoldideathatconservingenergyisaformofself-denial—ridingbicycles,dimmingthelights,:gettingthesame—orbetter——ownedhotelinGermany,hereplacedhundredsofthehotel’swastefullightbulbs,,￡100,000ontheseandotherimprovements,heslashedhis￡90,000fuelandpowerbillby￡60,,thehotel’slowerenergyneedshavereduceditsannualcarbonemissionsbymorethan200metrictons.“Forus,savingenergyhasbeenvery,veryprofitable,”hesays.“Andmostimportantly,we’fortforourguests.”  —or,moreprecisely,’sbecausequicklygrowingenergydemandrequiresimmenseinvestmentinnewsupply,nottomentionthedrainofrisingenergyprices.   ,,,theTexasoilman,,’’svirtuallynolimittohowmuchofthatcanbesaved,asprototype“zero-energyhomes”’sbeenasurgeinnewwaysofkeepingheatinandcoldout(orviceversa).Themostadvancedinsulationfollowsthelawofincreasingreturns:ifyouaddenoughyoucanscaledownoreveneliminateheatingandair-conditioningeq