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【正文】 quid or gas) to electricity and its tailpipe emission: water vapor. Fuel cells were invented in the mid19th century and provided electric power on NASA space missions, but they39。s warranty. Do plugin hybrid vehicles simply exchange their pollution source from tailpipe to coalburning smokestack? It depends on the electric power source, according to a new report released by the American Council for an EnergyEfficient Economy (ACEEE), a nonprofit energy policy group. ACEEE concluded that a plugin version of the Toyota Prius could reduce CO2 emissions by a third over a conventional Prius hybrid, but only if its batteries were charged with California electricitygenerated mainly from relatively clean sources. In the Midwest, dominated by coalburning power plants, the report says the plugin Prius would actually generate one percent more carbon dioxide. The Future with Batteries and Fuel CellsIf any one technology can replace the internalbustion engine, it39。s kits for the Prius ($9,500) and Ford Escape (as yet unpriced, but definitely more expensive) leave the existing batteries in place but add a lithiumion auxiliary battery. The drawback is that they39。s system, with pricing to be announced, replaces the Prius39。s impressive that one in five say they39。s headed for the market. And other hightech green cars are on their way, too. A New Day for Clean Cars Interest in cleaner and greener auto technology is exploding. From fuel cells to plugin hybrids, the industry is showing more research and development zeal than at any time since the halcyon days of 1900, when gasoline, steam and electric vehicles (EVs) were peting in the marketplace. Companies such as General Motors, ridiculed for stodginess and worse in films like Roger and Me and Who Killed the Electric Car? (see sidebar) are revealing a much leaner side. In fact, GM has made the first plugin hybrid production mitment in the ., using an intriguing new approach. It is developing an entirely new propulsion system, shown at the recent Detroit Auto Show as the Chevrolet Volt. With seesawing gasoline prices and uncertainty about the future of oil, Americans are finally focusing on fuel economy and looking beyond big SUVs for their next vehicle. A consumer survey by the influential . Power and Associates last summer found that an amazing 57 percent of respondents would consider buying a hybrid car for their next vehicle, and 49 percent would consider a car powered by E85 ethanol. Another survey, by Frost amp。t that give you the ability to drive to work on electric power, with the small gas engine available in reserve for longer trips? This concept started out as an environmentalist39。 附件 2：外文原文 2020 HERE COME THE... CLEANER, GREENER CARS Motavalli, Jim E Magazine 03012020 From hybrids to electrics to diesels that run on vegetable oil, it39。 對(duì)他而言， 克
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