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  3. With the depletion of the cod fishery and so many other coastal fish stocks worldwide, the fishing industry has turned to the hi

With the depletion of the cod fishery and so many other coastal fish stocks worldwide, the fishing industry has turned to the hi

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问题     With the depletion of the cod fishery and so many other coastal fish stocks worldwide, the fishing industry has turned to the high seas to exploit their resources. Fishing operations are now【B1】______the seamounts, oceanic ridges and plateaus of the deep ocean【B2】______national jurisdiction, where ownership and responsibility do not【B3】______to any nation.
    【B4】______a decade or more, we have caused significant damage to【B5】______unknown ecosystems, depleted species and probably doomed many others to【B6】______. Every day, commercial fishing fleets【B7】______primarily from just 11 nations venture【B8】______the high seas to fish the deep ocean. What’s left is truly a lonely, infertile, undersea desert.
    The high seas are very special. It is here where you can find【B9】______groupings of animals that【B10】______their energy from sources【B11】______the sun around volcanoes on the deep sea floor. It is only here where you can find areas still free from introduced species,【B12】______in the seas around Antarctica. And it is here where you can find【B13】______organisms that are more than 8,000 years old, like many of the massive deep-sea corals.
    But what really sets the high seas【B14】______from all other areas we know is the【B15】______lack of protection for any of this natural heritage.
    A United Nations meeting recently finally pay great attention to the high seas and put them on the【B16】______. Government officials from around the world gathered together with scientists, representatives from the fishing【B17】______, conservation groups and other stake-holders to discuss conservation and【B18】______use of marine biological diversity in the high seas,【B19】______64 percent of the Earth’s surface.
    They need to move quickly.【B20】______the fragility of these environments, we simply do not have the luxury of time, but we can act before it is too late.  
【B6】
选项 A、extinction
B、exhaustion
C、destruction
D、damage
答案A
解析 名词辨析题。该句详细描述了因人类开发公海而带来的危害：许多物种枯竭，甚至遭受灭绝；“doom(使……在劫难逃)”是判断答案的重要依据，因此选extinction“灭绝；灭绝的行为”。exhaustion“耗尽，筋疲力尽”；destruction“破坏，毁灭”；damage“损害，伤害”。
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