[外语类试卷]大学英语六级模拟试卷468及答案与解析.doc

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1、大学英语六级模拟试卷 468及答案与解析 一、 Part I Writing (30 minutes) 1 Directions: For this part, you are allowed 30 minutes to write a short essay entitled On the Importance of Environmental Protection. You should write at least 150 words following the outline given below. 1. 人类面临的环境问题越来越多，如气候变化、环境污染、生态失衡等问题 2但许多人仍

2、然不懂得去保护环境 3我的看法 On the Importance of Environmental Protection 二、 Part II Reading Comprehension (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-4, mark： Y (for YES)

3、 if the statement agrees with the information given in the passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Part Reading Comprehension (Skimming and Scanning) Directions: In this part, you will

4、 have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked A, B, C and D. For questions 8-10, complete the sentences with the information given in the passage. Electric Vehicles Are Charging Up Th

5、e Automotive Industry Next time youre filling up the cavernous fuel tank of the gas-gulping family jalopy, imagine getting 230 miles per gallon. Better yet, how about never buying another gallon of gas? After years of hope and hype, electron-powered driving finally appears to be on the verge of real

6、ity. In the next three years, at least a dozen pure electric or plug-in hybrid cars are slated to hit the market in the U. S. Electricity-driven vehicles from giants such as General Motors Co. and Nissan Motor Co., as well as start-ups like Fisker Automotive Inc. in Irvine, will provide consumers wi

7、th a wide variety of choices. These new vehicles promise to combine blinding fuel efficiency, radical new technology and futuristic styling that makes the hybrid Toyota Prius look downright staid. Battery makers and automakers alike are tooling up factories to produce big volumes of electric vehicle

8、s. Meanwhile, power utilities and regulators are scrambling to figure out just how big the market will be. “This is happening and its happening soon,“ said Mark Duvall, director of electric transportation at the Electric Power Research Institute, an independent, nonprofit research group. “By the end

9、 of 2011, consumers will have more choices in vehicles they can plug in than they currently do for hybrids. The electric vehicles will be arriving at a good time. With gasoline prices creeping up once again and federal regulations calling for huge fuel economy gains in the next half-decade, theres i

10、ncreasing demand for cars that burn less fuel, make less noise and push automotive technology forward. In August, President Obama set a national goal o getting I million plug-in vehicles on the road by 2015. It took about twice as long to get a million hybrids rolling on U.S. streets and highways. B

11、ut any new technology that involves high-voltage, exotic battery chemistries and 3,500-pound objects hurtling forward at high speed is bound to hit some potholes. Early adopters, experts say, will have to contend with charging infrastructure challenges and some pretty long waiting lists. And did we

12、mention price? Even the least expensive electric or plug-in car will cost more than $25,000, and most will come in closer to twice that. “There will be some real challenges at first,“ said Roland Hwang, vehicle policy director at the Natural Resources Defense Council. “These are going to cost more t

13、han conventional cars. The infrastructure is not going to take care of itself. These issues will determine whether this is a trickle or a massive flood.“ Restarting electrics Electric cars are hardly new. In fact, a century ago, around .the time of the dawn of the automobile, there were as many elec

14、tric as gasoline-powered cars. But technological limitations eventually killed those early EV, and electric cars didnt truly raise their heads again until the late 1990s. Thats when a smattering of electrics, including the much-lamented GM EV1, was made available in California as part of a governmen

15、t-mandated test program. Wildly popular among a select group of enthusiasts, they were officially declared unfeasible and unprofitable by automakers. Today, only a few hundred are still on the road, among them a Toyota RAV4 EV driven by Paul Scott, co-founder of electric vehicle activist group Plug

16、In America. Nobody was happier than Scott when Tesla Motors Inc a San Carlos, Calif. , automaker, last year began selling its all-electric Roadster, a rocket of a two-seater that noiselessly goes from zero to 60 mph in less than four seconds. True, the Roadster costs $109,000. And it has a waiting l

17、ist longer than Sunset Boulevard. But to people like Scott, its arrival signaled the coming of a new electric era. “This time electric cars are here to stay,“ said Scott, who envisions charging cars using solar power, making them essentially cost-free to operate. Tesla and other nimble start-ups hav

18、e helped jump-start the industry. Now big automakers are getting their electric programs in gear. Thats no minor development considering the titanic capital costs involved in developing high-volume-production vehicles. For Ford Motor Co. , better batteries were key. Previous technologies were just t

19、oo heavy and inefficient, said Nancy Gioia, the automakers director of global electrification. “They werent ready for mass production,“ she said. But in the last couple of years, huge improvements and new battery chemistries “opened the opportunity“ for ambitious product plans, she said. Gioia predi

20、cts that as many as a quarter of new vehicles sold by 2020 will be electrics, plug-in hybrids or traditional hybrids. Challenges ahead Yet even the fiercest electric advocates admit that battery reliability still has room for improvement. Arthur Krieger, a retired police officer in Los Angeles, driv

21、es a Prius powered by a relatively small nickel metal hydride battery to assist the gasoline engine. Tile battery needed replacement after nine years on the road. Thats when Krieger got a nasty surprise: A new one would cost more than $ 4,800. “That cost will wipe out the entire cost savings of havi

22、ng a hybrid in the first place.“ Krieger said. The price would be even higher on an all-electric vehicle using the latest chemistry., lithium ion. Already widely used in cell phones, watches and laptops, those batteries have storage, charging and weight characteristics that make them superior to pre

23、vious technologieswith premium prices to match. A replacement battery for a Tesla Roadster costs $ 30,000, and it can move the car only 200 or so miles before it needs to be recharged. Thats a 3.5-hour process on a high-powered charger, 30 hours on regular household current. Then there is the matter

24、 of exactly where to re-juice all those electrics. Some experts believe that public charging stations will be the best solution, either those put up by state and local governments or, perhaps, private for-profit companies. At present there is almost no such infrastructure. Building a nationwide netw

25、ork would cost tens of billions of dollars. That means most electric owners will be charging at home initially. Plugin hybrids, which primarily run on batteries but also have gasoline-powered engines to supplement range and power, can get by on standard household current. Theyre ready to roll in fiv

26、e or six hours. All-electric cars, however, can take well over a day to charge unless owners invest thousands of dollars in home electrical upgrades. A rewarding experience For those willing (and able) to take the plunge, however, the rewards of owning electrified cars could include the financial ki

27、nd. Thanks to a provision in last years $ 700-billion Wall Street bailout legislation, buyers of electric or plug-in hybrid cars can qualify for a tax credit of as much as $ 7,500. Routine maintenance could be a bargain too. Since these vehicles use simple electric motors rather than complex gasolin

28、e or diesel engines, as well as pared-down or in some cases nonexistent transmissions, they are far easier to service than conventional vehicles. Theres no oil to change, no radiator to flush. There are other perks as well. In California, electric vehicles still qualify for special stickers that per

29、mit their drivers to travel solo in the states carpool lanes. The stickers expire in 2011, but lawmakers are considering extending the privilege until 2016. Its unclear whether plug-in hybrids will qualify. With all the excitement brewing over electric vehicles, its easy to forget that 98 of the car

30、s sold in America still have traditional drive trains. Simply put, the gasoline engine isnt going to disappear overnight. Even the most vociferous boosters of plug-in vehicles admit that the greater range and lower cost of internal combustion-powered cars and trucks mean theyll dominate vehicle sale

31、s for at least another decade or two. And for some applications, like hauling a trailer over the Rockies, they may never go away. 2 From the first paragraph, we can know that electric vehicles _ at present. （ A） appear to be in the market. （ B） tend to replace fuel vehicles. （ C） offer a wide range

32、of choices. （ D） appear to be on the verge of success. 3 Which of the following is NOT probably a reason for electric vehicles “good time“? （ A） Rising gasoline price. （ B） Fuel economy. （ C） Affordable price. （ D） Various choices. 4 According to Roland Hwang, we can infer that _. （ A） The electric

33、vehicles will take up the automotive market gradually. （ B） The electric vehicles will quit the automotive market gradually. （ C） The conventional car is better than the electric vehicles. （ D） The electric vehicles encounter some challenges. 5 The early electric cars gradually disappeared because o

34、f_. （ A） gasoline-powered cars. （ B） technological restrictions. （ C） lacking governments support. （ D） no profits and unfeasibility. 6 According to Ford Motor Co. , the crucial point for developing the latest electric cars is _. （ A） using solar power. （ B） finding better batteries. （ C） attracting

35、 consumers attention. （ D） sharing automotive market. 7 According to Arthur Krieger, we can learn that_. （ A） He would like to replace the old battery for new one. （ B） He would rather buy a new car than replace battery. （ C） He wants to use the latest battery. （ D） He complains the high cost of rep

36、lacing battery. 8 There is no public charging stations because _. （ A） Its building cost is pretty high. （ B） People would like to charge at home. （ C） It takes long time to finish the charging. （ D） Charge in public stations cost long time. 9 They needed to invest in _ if the owners of all-electric

37、 cars wanted to reduce time to charge. 10 The buyers of electric or plug-in hybrid cars can enjoy a sum of $ 7,500 in _. 11 The traditional vehicles exist for next 10 to 20 years because of _. Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the

38、 end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.

39、 （ A） The jacket was cut by the woman. （ B） The jacket doesnt fit the woman around arm and leg area. （ C） The jacket was designed by the woman. （ D） The woman spent a lot of money on the jacket. （ A） The man should schedule an ear examination without delay. （ B） The man should do some listening prac

40、tice. （ C） The women should order an appointment book. （ D） The woman should make a list of what he needs to do. （ A） The woman should buy a famous brand. （ B） The washing machine should have worked longer. （ C） The woman should consider buying a new one. （ D） The washing machine was not a good inve

41、stment. （ A） She is too busy with her work and can not go. （ B） She wants him to check whether it is going to rain. （ C） She will surely enjoy the picnic tomorrow. （ D） She wants the man to help her. （ A） She will go the exhibit with the man. （ B） She will stay at home and rest. （ C） She will find o

42、ut when the exhibit opens. （ D） She will help the man to prepare the exhibit. （ A） The man is painting a bookcase. （ B） The woman is choosing a new bed. （ C） The woman is looking out of the window. （ D） The woman is rearranging her furniture. （ A） The work is hard job with low salary. （ B） The job i

43、s easy work with good income. （ C） The job is challenging but rewarding. （ D） The only good thing about the work is to meet new people. （ A） At a concert. （ B） At the campus canteen. （ C） In a supermarket. （ D） At a museum entrance. （ A） An air crash to Los Angeles. （ B） A book written by a doctor.

44、（ C） A disease on the comeback and its reasons （ D） Mans effort to prevent disease. （ A） Buenos Airs. （ B） New York. （ C） San Francisco. （ D） New Orleans. （ A） Breakdown of public health. （ B） International travel and commerce. （ C） Mans eating habits. （ D） Processing methods of food. （ A） A player

45、of background music. （ B） A researcher on the function of background music. （ C） A composer of background music. （ D） A fan of background music. （ A） It makes the workers excited. （ B） It helps to reduce workers complaint. （ C） It makes workers spend less time having their dinner. （ D） It might make

46、 the production increase. （ A） The history of background music. （ B） The function of background music. （ C） The way background music is played. （ D） The popularity of background music among workers. （ A） Fast music promotes the sale of hamburgers. （ B） Background music is played in prisons to make p

47、risoner educated. （ C） Background music is sometimes very boring to the workers. （ D） Background music is usually faster than any other music. Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the que

48、stions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D. （ A） By research with commercial whale watching tour. （ B） By research with navy marine. （ C） By research with whaling hunting. （ D） By research with local fisherme

49、n. （ A） When they are feeding. （ B） When it is raining. （ C） When they are sleeping. （ D） When they are breathing the air. （ A） Travel as fast as the head whale. （ B） Keep 150 meters away from the whale. （ C） At least two vessels should be watching in case of collision with whales. （ D） Travel as fast as the slowest whale. （ A） Because she was the first women working in newspaper business. （ B） Because she published the early documents. （ C） Because she was one of the representatives from Rho