2007年12月大学英语六级(CET-6)真题试卷Part IWriting(30 minutes)注意：此部分试题在答题卡1上。Directions:For this part,you are allowed 30 minutes to write a short essay entitled Digital Age.You should write at least 150 words following the outline given below.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Digital AgePart IIReading Comprehension(Skimming and Scanning)(15minutes)Directions:In this part,you will have 15 minutes to go over the passage quickly and answer thequestions on Answer Sheet 1.For questions 1-7,choose the best answer from the fourchoices marked [A],[B],[C]and [D].For questions 8-10,complete the sentences withthe information given in the passage.Seven Ways to Save the WorldForget the old idea that conserving energy is a form of self-denial-riding bicycles,dimming the lights,and taking fewer showers.These days conservation is all about efficiency:getting the same-or better-results from just a fraction of the energy.When a slump in businesstravel forced Ulrich Romer to cut cost costs at his family-owned hotel in Germany,he replacedhundreds of the hotel's wasteful light bulbs,getting the same light for 80 percent less power.Hebought a new water boiler with a digitally controlled pump,and wrapped insulation around thepipes.Spending about e 100,000 on these and other improvements,he slashed his E 90,000 fuel andpower bill by E 60,000.As a bonus,the hotel's lower energy needs have reduced its annual carbonemissions by more than 200 metric tons."For us,saving energy has been very,very profitable,"hesays."And most importantly,we're not giving up a single comfort for our guests."Efficiency is also a great way to lower carbon emissions and help slow global warming.Butthe best argument for efficiency is its cost-or,more precisely,its profitability.That's because1/31quickly growing energy demand requires immense investment in new supply,not to mention thedrain of rising energy pricesNo wonder efficiency has moved to the top of the political agenda.On Jan.10,the EuropeanUnion unveiled a plan to cut energy use across the continent by 20 percent by 2020.Last March,China imposed a 20 percent increase in energy efficiency by 2020.Even George W.Bush,the Texasoilman,is expected to talk about energy conversation in his State of the Union speech this week.The good news is that the world is full of proven,cheap ways to save energy.Here are theseven that could have the biggest impact:InsulateSpace heating and cooling eats up 36 percent of all the world's energy.There's virtually nolimit to how much of that can be saved,as prototype "zero-energy homes"in Switzerland andGermany have shown.There's been a surge in new ways of keeping heat in and cold out (or viceversa).The most advanced insulation follows the law of increasing returns:if you add enough,youcan scale down or even eliminate heating and air-conditioning equipment,lowering costs evenbefore you start saving on utility bills.Studies have shown that green workplaces (ones that don'tconstantly need to have the heat or air-conditioner running)have higher worker productivity andlower sick rates.Change BulbsLighting eats up 20 percent of the world's electricity,or the equivalent of roughly 600,000tons of coal a day.Forty percent of that powers old-fashioned incandescent light bulbs-a19th-century technology that wastes most of the power it consumes on unwanted heat.Compact fluorescent lamps,or CFLs,not only use 75 to 80 percent less electricity thanincandescent bulbs to generate the same amount of light,but they also last 10 times longer.Phasingold bulbs out by 2030 would save the output of 650 power plants and avoid the release of 700million tons of carbon into the atmosphere each year.Comfort ZoneWater boilers,space heaters and air conditioners have been notoriously inefficient.The heatpump has altered that equation.It removes heat from the air outside or the ground below and uses itto supply heat to a building or its water supply.In the summer,the system can be reversed to coolbuilding as well.Most new residential buildings in Sweden are already heated with ground-source heat pumps.Such systems consume almost no conventional fuel at all.Several countries have used subsidies tojump-start the market,including Japan,where almost 1 million heat pumps have been installed inthe past two years to heat water for showers and hot tubs.Remake FactoriesFrom steel mills to paper factories,industry eats up about a third of the world's energy.Theopportunities to save are vast.In Ludwigshafen,German chemicals giant BASF runs aninterconnected complex of more than 200 chemical factories,where heat produced by one chemicalprocess is used to power the next.At the Ludwigshafen site alone,such recycling of heat and energysaves the company E 200 million a year and almost half its COz emissions.Now BASF is doing thesame for new plants in China."Optimizing (energy efficiency is a decisive competitiveadvantage,says BASF CEO Jurgen HambrechtGreen DrivingA quarter of the world's energy-including two thirds of the annual production of oil-is2/31used for transportation.Some savings come free of charge:you can boost fuel efficiency by 6percent simply by keeping your car's tires properly inflated ()Gasoline-electric hybrid)models like the Toyota Prius improve mileage by a further 20 percent over conventionalmodels.A Better FridgeMore than half of all residential power goes into running household appliances,producing afifth of the world's carbon emissions.And that's true even though manufacturers have already hikedthe efficiency of refrigerators and other white goods by as much as 70 percent since the 1980s.According to an International Energy Agency study,if consumers chose those models that wouldsave them the most money over the life of the appliance,they'd cut global residential powerconsumption and their utility bills by 43 percent.Flexible PaymentWho says you have to pay for all your conservation investment "Energy servicecontractors'”will pay for retrofitting(翻折改造)in return for a share of the client's annualutility-bill savings.In Beijing,Shenwu Thermal Energy Technology Co.specializes in retrofittingChina's steel furnaces.Shenwu puts up the initial investment to install a heat exchanger thatpreheats the air going into the furnace,slashing the client's fuel costs.Shenwu pockets a cut ofthose savings,so both Shenwu and the client profit.If saving energy is so easy and profitable,why isn't everyone doing it?It has to do withpsychology and a lack of information.Most of us tend to look at today's price tag more thantomorrow's potential savings.That holds double for the landlord or developer,who won't actuallysee a penny of the savings his investment in better insulation or a better heating system mightgenerate.In many people's minds,conservation is still associated with self-denial.Manyenvironmentalists still push that view.Smart governments can help push the market in the right direction.The EU's 1994 law onlabeling was such a success that it extended the same idea to entire buildings last year.To boost themarket value of efficiency,all new buildings are required to have an "energy pass"detailing powerand heating consumption.Countries like Japan and Germany have successively tightened buildingcodes,requiring an increase in insulation levels but leaving it up to builders to decide how to meetthem.The most powerful incentives,of course,will come from the market itself.Over the pastyear,sky-high fuel prices have focused minds on efficiency like never before.Ever-increasingpressure to cut costs has finally forced more companies to do some math on their energy use.Will it be enough?With global demand and emissions rising so fast,we may not have anychoice but to try.Efficient technology is here now,proven and cheap.Compared with all otheroptions,it's the biggest,easiest and most profitable bang for the buck.注意：此部分试题请在答题卡1上作答。1.What is said to be the best way to conserve energy nowadays?[A]Raising efficiently.[B]Cutting unnecessary costs.[D]Sacrificing some personal comforts.2.What does the European Union plan to do?[A]Diversify energy supply.[B]Cut energy consumption.[C]Reduce carbon emissions.[D]Raise production efficiency.3.If you add enough insulation to your house,you may be able to3/31