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  3. Sometimes winter storms are accompanied by strong winds creating blizzard(暴风雪)conditions with blinding wind -driven snow, sever

Sometimes winter storms are accompanied by strong winds creating blizzard(暴风雪)conditions with blinding wind -driven snow, sever

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问题     Sometimes winter storms are accompanied by strong winds creating blizzard(暴风雪)conditions with blinding wind -driven snow, sever drifting, and dangerous wind chill. Strong winds with these【B1】______storms and cold fronts can knock down trees and power lines. In the West and alaska, winds【B2】______off the mountains can rise up to 10 mph or more,【B3】______damaging roofs and other structures. Prolonged periods of extreme cold can cause water pipes to【B4】______and burst in homes that are poorly heated. Heavy accumulations of ice can bring down trees, electrical wires, telephone poles and lines, and communication towers. These ice storms can disrupt power and communications for days while【B5】______companies work to repair the damage. Even small accumulations of ice may cause extreme【B6】______to motorists and pedestrians. Ice jam may form and lead to flooding. Heavy snow can【B7】______a region and paralyze a city, impairing commuters, stopping the flow of supplies, and disrupting 【B8】______medical services. Accumulations of snow can【B9】______buildings and knock down trees and power lines. The cost of snow removal repairing damages, and loss of business can have large【B10】______impacts on cities and towns.
[A]overload[B]intensive[C]intense[D]utility
[E]freeze[F]descending[G]economic[H]immobilize
[I]hazards[J]seriously[K]emergency[L]ruthlessly
[M]ascending[N]collapse[O]inconvenience
【B2】
选项
答案F
解析 分析句子成分可知，【B2】______off the mountains在句中充当winds的后置定语，再根据空后副词off可以判断所填词可能为动词的分词形式。按照常理，风都是由高处吹向低处，而本句涉及到mountains，故可知风应该由山的高处吹向低处。备选动词中能够表示“由高而低”这一过程的只有[F]descending(下来)，故为答案。[M]ascending为干扰项，它表示的是“上升”，故排除。
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