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【考研英语】13.Skyscrapers and Environment  

2016-05-29 09:59:09|  分类: 【英语】写作 |  标签: |举报 |字号 订阅

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 In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers2 were widely criticized. Ecologists pointed3 out that a cluster of tall buildings in a city often overburdens public transportation and parking lot capacities.

  Skyscrapers are also lavish4 consumers, and wasters, of electric power. In one recent year, the addition of 17 million square feet of skyscraper1 office space in New York City raised the peak daily demand for electricity by 120, 000 kilowatts-enough to supply the entire city of Albany, New York, for a day.

  Glass-walled skyscrapers can be especially wasteful5. The heat loss (or gain)through a wall of half-inch plate glass is more than ten times that through a typical masonry6 wall filled with insulation7 board. To lessen8 the strain on heating and air-conditioning equipment, builders of skyscrapers have begun to use double-glazed panels of glass, and reflective glasses coated with silver or gold mirror films that reduce glare as well as heat gain. However, mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings.

  Skyscrapers put a severe strain on a city's sanitation9 facilities, too. If fully10 occupied, the two World Trade Center towers in New York City would alone generate 2.25 million gallons of raw sewage each year-as much as a city the size of Stanford, Connecticut , which has a population of more than 109, 000.


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