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星火 王长喜 丁小钟的六级真题(一定要买) 上海交大卷(一定要买).基本上是交叉开做 一个星期5套试卷 星火的太简单 可以用来先练手 王长喜六级阅读有些出的太乱 不推荐做 上海交大的最好按考试时间整份从头到尾做完
F. 全国大学英语四六级考试(CET)成绩查询 官网
2007年12月22日大学六级真题word (2008-06-04 16:34:07)
Part I Writing (30 minutes)
The digital age
Part II Reading Comprehension (Skimming and Scanning) (15 minutes)
Seven Ways to Save the World
Forget 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 business travel forced Ulrich Ramer to cut costs at his family—owned hotel in Germany, he replaced hundreds of the hotel’s wasteful light bulbs, getting the same light for 80 percent less power. He bought a new water boiler with a digitally controlled pump, and wrapped insulation around the pipes. Spending about ￡100,000 on these and other improvements, he slashed his ￡90,000 fuel and power bill by ￡60,000. As a bonus, the hotel’s lower energy needs have reced its annual carbon emissions by more than 200 metric tons. “For us, saving energy has been very, very profitable,” he says. “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. But the best argument for efficiency is its cost—or, more precisely, its profitability. That’s because quickly growing energy demand requires immense investment in new supply, not to mention the drain of rising energy prices.
No wonder efficiency has moved to the top of the political agenda. On Jan. 10, the European Union 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 Texas oilman, is expected to talk about energy conservation 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 the seven that could have the biggest impact.
Space heating and cooling eats up 36 percent of all the world’s energy. There’s virtually no limit to how much of that can be saved, as prototype “zero-energy homes” in Switzerland and Germany have shown. There’s been a surge in new ways of keeping heat in and cold out (or vice versa). The most advanced insulation follows the law of increasing returns: if you add enough you can scale down or even eliminate heating and air-conditioning equipment, lowering costs even before you start saving on utility bills. Studies have shown that green workplaces (ones that don’t constantly need to have the heat or air-conditioner running) have higher worker proctivity and lower sick rates.
Lighting eats up 20 percent of the world’s electricity, or the equivalent of roughly 600,000 tons of coal a day. Forty percent of that powers old-fashioned incandescent light bulbs—a 19th-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 than incandescent bulbs to generate the same amount of light, but they also last 10 times longer. Phasing old bulbs out by 2030 would save the output of 650 power plants and avoid the release of 700 million tons of carbon into the atmosphere each year.
Water boilers, space heaters and air conditioners have been notoriously inefficient. The heat pump has altered that equation. It removes heat from the air outside or the ground below and uses it to supply heat to a building or its water supply. In the summer, the system can be reversed to cool buildings 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 to jump-start the market, including Japan, where almost I million heat pumps have been installed in the past two years to heat water for showers and hot tubs.
From steel mills to paper factories, instry eats up about a third of the world’s energy. The opportunities to save are vast. In Ludwigshafen, German chemicals giant BASF runs an interconnected complex of more than 200 chemical factories, where heat proced by one chemical process is used to power the next. At the Ludwigshafen site site alone, such recycling of heat and energy saves the company ￡200 million a year and almost half its CO2 emissions. Now BASF is doing the same for new plants in China. “Optimizing (优化) energy efficiency is a decisive competitive advantage,” says BASF CEO Jurgen Hambrecht.
A quarter of the world’s energy---including two thirds of the annual proction of oil—is used for transportation. Some savings come free of charge: you can boost fuel efficiency by 6 percent simply by keeping your car’s tires properly inflated (充气). Gasoline-electric hybrid(混合型的) models like the Toyota Prius improve mileage by a further 20 percent over conventional models.
A Better Fridge
More than half of all residential power goes into running household appliances, procing a fifth of the world’s carbon emissions. And that’s true even though manufacturers have already hiked the 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 would save them the most money over the life of the appliance, they’d cut global residential power consumption (and their utility bills) by 43 percent.
Who says you have to pay for all your conservation investments? “Energy service contractors” will pay for retrofitting（翻新改造）in return for a share of the client’s annual utility-bill savings. In Beijing. Shenwu Thermal Energy Technology Co. specializes in retrofitting China’s steel furnaces. Shenwu puts up the initial investment to install a heat exchanger that preheats the air going into the furnace, slashing the client’s fuel costs. Shenwu pockets a cut of those savings, so both Shenwu and the client profit.
If saving energy is so easy and profitable, why isn’t everyone doing it? It has do with psychology and a lack of information. Most of us tend to look at today’s price tag more than tomorrow’s potential saving. That holds double for the landlord or developer, who won’t actually see a penny of the savings his investment in better insulation or a better heating system might generate. In many people’s minds, conservation is still associated with self-denial. Many environmentalists still push that view.
Smart governments can help push the market in the right direction. The EU’s 1994 law on labeling was such a success that it extended the same idea to entire buildings last year. To boost the market value of efficiency, all new buildings are required to have an “energy pass” detailing power and heating consumption. Countries like Japan and Germany have successively tightened building codes, requiring an increase in insulation levels but leaving it up to builders to decide how to meet them.
The most powerful incentives, of course, will come from the market itself. Over the past year, sky-high fuel prices have focused minds on efficiency like never before. Ever-increasing pressure 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 any choice but to try. Efficient technology is here now, proven and cheap. Compared with all other options, it’s the biggest, easiest and most profitable bang for the buck.
1. What is said to be best way to conserve energy nowadays?
A) Raising efficiency. B) Cutting unnecessary costs..
C) Finding alternative resources. D) Sacrificing some personal comforts.
2. What does the European Union plan to do?
A) Diversify energy supply. B) Cut energy consumption.
C) Rece carbon emissions. D) Raise proction Raise proction efficiency.
3. If you add enough insulation to your house, you may be able to _____________.
A) improve your work environment B) cut your utility bills by half
C) get rid of air-conditioners D) enjoy much better health
4. How much of the power consumed by incandescent bulbs is converted into light?
A) A small portion. B) Some 40 percent. C) Almost half. D) 75 to 80 percent.
5. Some countries have tried to jump-start the market of heat pumps by __________.
A)upgrading the equipment B)encouraging investments C) implementing high-tech D)providing subsidies
6. German chemicals giant BASF saves ￡200 million a year by ___________.
A) recycling heat and energy B) setting up factories in China
C) using the newest technology D) recing the CO2 emissions of its plants
7. Global residential power consumption can be cut by 43 percent if ___________.
A) we increase the insulation of walls and water pipes
B) We choose simpler models of electrical appliances
C) We cut down on the use of refrigerators and other white goods
D) We choose the most efficient models of refrigerators and other white goods
8. Energy service contractors profit by taking a part of clients____________.
9. Many environmentalists maintain the view that conservation has much to do with _____.
10. The strongest incentives for energy conservation will derive from __________
Part III Listening Comprehension (35 minutes)
11. A) Proceed in his own way. B) Stick to the original plan.
C) Compromise with his colleague. D) Try to change his colleague’s mind.
12. A) Mary has a keen eye for style. B) Nancy regrets buying the dress.
C) Nancy and Mary went shopping together in Rome. D) Nancy and Mary like to follow the latest fashion.
13. A) Wash the dishes. B) Go to the theatre.
C) Pick up George and Martha. D) Take her daughter to hospital.
14. A) She enjoys making up stories about other people. B) She can never keep anything to herself for long.
C) She is eager to share news with the woman. D) She is the best informed woman in town.
15. A) A car dealer. B) A mechanic C) A driving examiner. D) A technical consultant.
16. A) The shopping mall has been deserted recently. B) Shoppers can only find good stores in the mall.
C) Lots of people moved out of the downtown area. D) There isn’t much business downtown nowadays.
17. A) He will help the woman with her reading. B) The lounge is not a place for him to study in.
C) He feels sleepy whenever he tries to study. D) A cozy place is rather hard to find on campus.
18. A) To protect her from getting scratches. B) To help relieve her of the pain.
C) To prevent mosquito bites. D) To avoid getting sunburnt.
Questions 19 to 22 are based on the conversation you have just heard.
19. A) In a studio. B) In a clothing store. C) At a beach resort D) At a fashion show
20. A) To live there permanently. B) To stay there for half a year.
C) To find a better job to support herself. D) To sell leather goods for a British company.
21. A) Designing fashion items for several companies. B) Modeling for a world-famous Italian company.
C) Working as an employee for Ferragamo. D) Serving as a sales agent for Burberrys.
22. A) It has seen a steady decline in its profits. B) It has become much more competitive.
C) It has lost many customers to foreign companies. D) It has attracted lot more designers from abroad.
23. A) It helps her to attract more public attention. B) It improves her chance of getting promoted.
C) It strengthens her relationship with students. D) It enables her to understand people better.
24. A) Passively. B) Positively. C) Skeptically. D) Sensitively.
25. A) It keeps haunting her day and night. B) Her teaching was somewhat affected by it.
C) It vanishes the moment she steps into her role. D) Her mind goes blank once she gets on the stage.
Questions 26 to 29 are based on the passage you have just heard.
26. A) To win over the majority of passengers from airlines in twenty years.
B) To reform railroad management in western European countries.
C) To electrify the railway lines between major European cities.
D) To set up an express train network throughout Europe.
27. A) Major European airliner will go bankrupt.
B) Europeans will pay much less for traveling.
C) Traveling time by train between major European cities will be cut by half.
D) Trains will become the safest and most efficient means of travel in Europe.
28. A) Train travel will prove much more comfortable than air travel.
B) Passengers will feel much safer on board a train than on a plane.
C) Rail transport will be environmentally friendlier than air transport.
D) Traveling by train may be as quick as, or even quicker than, by air.
29. A) In 1981. B) In 1989. C) In 1990. D) In 2000.
Questions 30 to 32 are based on the passage you have just heard.
30. A) There can be no speedy recovery for mental patients.
B) Approaches to healing patients are essentially the same.
C) The mind and body should be taken as an integral whole.
D) There is no clear division of labor in the medical profession.
31. A) A doctor’s fame strengthens the patients’ faith in them.
B) Abuse of medicines is widespread in many urban hospitals.
C) One third of the patients depend on harmless substances for cure.
D) A patient’s expectations of a drug have an effect on their recovery.
32. A) Expensive drugs may not prove the most effective.
B) The workings of the mind may help patients recover.
C) Doctors often exaggerate the effect of their remedies.
D) Most illnesses can be cured without medication.
Questions 33 to 35 are based on the passage you have just heard.
33. A) Enjoying strong feelings and emotions. B) Defying all dangers when they have to.
C) Being fond of making sensational news. D) Dreaming of becoming famous one day.
34. A) Working in an emergency room. B) Watching horror movies.
C) Listening to rock music. D) Doing daily routines.
35. A) A rock climber. B) A psychologist. C) A resident doctor. D) A career consultant.
If you’re like most people, you’ve inlged in fake listening many times. You go to history class, sit in the third row, and look (36) ________ at the instructor as she speaks. But your mind is far away, (37) _______ in the clouds of pleasant daydreams. (38) ________ you come back to earth: the instructor writes an important term on the chalkboard, and you (39) _______ it in your notebook. Every once in a while the instructor makes a (40) _________ remark, causing others in the class to laugh. You smile politely, pretending that you’ve heard the remark and found it mildly (41) ___________. You have a vague sense of (42) ___________ that you aren’t paying close attention, but you tell yourself that any (43) ________ you miss can be picked up from a friend’s notes. Besides, (44) _______________________. So back you go into your private little world. Only later do you realize you’ve missed important information for a test.
Fake listening may be easily exposed, since many speakers are sensitive to facial cues and can tell if you’re merely pretending to listen. (45) ________________________.
Even if you’re not exposed, there’s another reason to avoid fakery; it’s easy for this behavior to become a habit. For some people, the habit is so deeply rooted that (46) _________________. As a result, they miss lots of valuable information.