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

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

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问题 In the 1960s, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists 【S1】______ out that a cluster of tail buildings in a city often 【S2】______ public transportation and parking lot capacities.
    Skyscrapers are also 【S3】______ consumers, and wasters, of electric power. In one recent year, the addition of 17 million square feet of skyscraper office space in New York City 【S4】______ the peak dally 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 【S5】______ wasteful. The heat loss (or gain) through a wall 【S6】______ half-inch plate glass is more than ten times that through a typical masonry wall 【S7】______ with insulation board. To 【S8】______ the strain on heating and air-conditioning equipment, builders of skyscrapers have begun to 【S9】______ double-glazed panels of glass, and reflective glasses coated with silver or gold mirror films that 【S10】______ glare as well as heat gain. However, mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings.

A pointed          B overburdened         C of             D filled
E improves         F mildly               G lavish         H raised
I abandon          J lessened             K lessen         L use
M reduce           N especially           O economical
【S6】
选项
答案C
解析 此处是关于介词of的用法，后面接数字
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大学英语四级

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