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  3. In the late 1960’s, many people in North America turned their attention to environmental problems, and new steel-and-glass skysc

In the late 1960’s, many people in North America turned their attention to environmental problems, and new steel-and-glass skysc

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问题     In the late 1960’s, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointing【C1】______that a cluster of tall buildings in a city often overburdens public transportation and parking lot【C2】______.
    Skyscrapers are also enormous【C3】______. and wasters, of electric power. In one recent year, the addition【C4】______17 million square feet of skyscraper office space in New York City raised the【C5】______daily demand for electricity by 120,000 kilowatts — enough to【C6】______the entire city of Albany for a day. Glass-walled skyscraper can be especially【C7】______. The heat loss(or gain)through a wall of half-inch plate glass is more than ten times【C8】______through a typical masonry wall filled with insulation board. To lessen the strain【C9】______heating and air-conditioning equipment,【C10】______of skyscrapers have begun to use double-glazed panels of glass, and reflective glasses【C11】______with silver or gold mirror films that reduce【C12】______as well as heat gain. However,【C13】______skyscrapers raise the temperature of the surrounding air and【C14】______neighboring buildings. Skyscrapers put severe pressure on a city’s sanitation【C15】______. too. If fully occupied, the two World Trade Center towers in New York City would alone generate 2.25 million gallons of raw sewage each year— as【C16】______as a city the size of Stamford, Connecticut, which has a【C17】______of more than 109,000. Skyscrapers also【C18】______with television reception, block bird flyways, and obstruct air traffic.
    Still, people【C19】______to build skyscrapers for all the reasons that they have always built them — personal ambition and the【C20】______of owners to have the largest possible amount of rentable space.  
【C2】
选项 A、power
B、capacities
C、potentials
D、capabilities
答案B
解析 本题测试词义搭配。power意为“体能、力量或权力”，尤其指控制他人的能力和权力：capacity意为“容量，接受力”，指所能容纳的最大量：potential意为“潜力，潜能”；capability意为“天分，潜能”，指一种可以得到发展或应用的才能或能力。parking lot(停车场)修饰所填之词，所以应选B。
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