問題詳情

第二篇：How would you react to someone who tried to sell you a car that runs on fresh air? Perhaps you would thinkhe was peddling potentially planet-saving technology. More likely, you would dismiss him as a conman or evencall the police. That is precisely the pitch being made by French auto engineer Guy Nègre, a good-humored manin his mid-60s who claims to have developed a state-of-the-art car powered by compressed air: one that producesa fraction of carbon emissions of a standard engine, reaches speeds of more than 30 mph, travels 65 miles on aone-minute recharge and, best of all, costs just a little over £3,000.Nègre is quick to point out the drawbacks of existing eco-car technology. “Whatever people may tell youabout hybrids, they are only marginally less polluting than the most efficient combustion engines,” he says.“Hydrogen power is expensive and impractical. Fuel cells are pricey and unproven, and electric cars are based oncostly and unreliable battery technology.”Given the number of false green-auto dawns, you might wonder why air-powered vehicles should be anydifferent. While Nègre’s air cars have similar carbon emissions to electric cars (it all depends how the electricityto power the pumps that fill their air tanks is generated), he argues that air power is a superior technology.“Compared to electric cars, air-powered cars cost a much lower price to buy, they don’t need expensive batteriesto be replaced every five years or so, and crucially they take a comparatively much shorter time to recharge.”I confess I was so skeptical that I reserved judgment until I had driven one of his cars. The version I drovewas an early prototype, a three-wheeler with no bodywork, steered by a joystick. OK, it didn’t deliver thesmoothly upholstered power so beloved by conventional car enthusiasts. And it possessed all the glamour ofsouped-up lawnmower. But it worked, easily reaching speeds above 25 mph in the limited space of the factorycar park. For those who hope to get around in a very eco-friendly way without insisting on power and speed, I dosee the future.
46. What is probably a “conman” (in the first paragraph)?
(A)a rude advocate for some ideals or for a revolution
(B)a confident person who is always positive about everything
(C) a crazy expert highly obsessed with technology
(D) a liar who tricks people in order to get their money

參考答案

答案：D
難度：適中0.666667
統計：A(1),B(0),C(0),D(2),E(0)

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