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There is no doubt about it: the Earth really is growing warmer. If you live in a city, that is, urban【C1】______ have known for y
There is no doubt about it: the Earth really is growing warmer. If you live in a city, that is, urban【C1】______ have known for y
admin
2010-06-11
66
问题
There is no doubt about it: the Earth really is growing warmer. If you live in a city, that is, urban【C1】______ have known for years that swaths of asphalt and concrete tend to【C2】______ the summer heat. As cities have grown,【C3】______ has the temperature problem. This summer, NASA and the Environmental Protection Agency teamed up with several U.S. cities to study urban "heat islands" and【C4】______ ways to bring some【C5】______ . The pilot program【C6】______ satellite, airplane and ground-based date to produce detailed maps of the hot and (comparatively) cool zones in the【C7】______ areas.
Images of Salt Lake City,【C8】______ in late July, document the【C9】______ of the urban heat problem. Some dark rooftops reach a temperature of 160 degrees F.(71 degrees C.). Jeff Luvall,【C10】______ heads the heat island project, notes that use of【C11】______ materials for roofs and parking lots would help【C12】______ solar heat upward. Urban forests also help reduce temperatures,【C13】 ______ the extent of the improvement depends on both the extent and arrangement of the forests. Luvall reports that【C14】______ along streams brings cool air into Salt Lake City; developers who turn these streams into concrete ditches throw away a【C15】______ natural air conditioning system.【C16】______ , scientists continue to fret about the broader, potentially【C17】______ more troublesome problem of global warming. Vice President Al Gore recently cited government data showing that the first half of 1998 was the warmest year【C18】______ record and called on Congress to adopt【C19】______ that would【C20】______ emissions of greenhouse gases.
【C9】
选项
A、intensity
B、severity
C、extremity
D、diversity
答案
B
解析
该处指“记录了城市炎热问题的严重忭”,所以B正确。“intensity”指“激烈”;“extremity”指“极端性”;“diversity”指“多样性”。
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0
大学英语六级
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