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 (1)_____ the seamounts, oceanic ridges and plateaus of the deep ocean (2)_____ national jurisdiction, where owner ship and responsibility do not (3)_____ to any nation. (4)_____ a decade or more, we have caused significant damage to (5)_____ unknown ecosystems, depleted species and probably doomed many others to (6)_____.Every day, commercial fishing fleets (7)_____ primarily from just 11 nations venture (8)_____ 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 (9)_____ groupings of animals that (10)_____ their energy from sources (11)_____ the sun around volcanoes on the deep sea floor. It is only here where you can find areas still free from introduced species, (12)_____ in the seas around Antarctica. And it is here where you can find (13)_____ organisms that are more than 8,000 years old, like many of the massive deep-sea corms. But what really sets the high seas (14)_____ from all other areas we know is the (15)_____ 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 (16)_____.Government officials from around the world gathered together with scientists, representatives from the fishing (17)_____, conservation groups and other stake-holders to discuss conservation and (18)_____ use of marine biological diversity in the high seas, (19)_____ 64 percent of the Earth"s surface. They need to move quickly. (20)_____ the fragility of these environments, we simply do hot have the luxury of time, but we can act before it is too late.
【答案解析】解析：语义衔接题。本题所在的介词结构做后置定语，修饰the seamounts，oceanic ridges and plateaus of the deep ocean，从上句的"high seas(公海)"和本题后面的表示否定意义的定语从句可以推断出这些地方是不受任何国家管辖的，因此选beyond"超出(理解、范围、眼界)"。with，under，about这三个介词均无此用法。
【正确答案】
A
【答案解析】解析：短语辨析题。本句中where引导定语从句，修饰先行词the seamounts，oceanic ridges and plateaus of the deep ocean，从句前的介词结构表明这些地区是不受任何国家管辖的，因此选belong，短语belong to意为"属于；为…的财产"。submit to"服从，顺从；听从，听任"；yield to"屈服，屈从"；commit to"致力于"，均不符合题意。
【正确答案】
C
【答案解析】解析：短语辨析题。空格所在句的谓语动词为现在完成时，由此可判断，该短语一定是一个持续的时间段，所以选in the course of，表示"在…期间"，原句意为"在十年多的时间里"。on a basis of"以…为基础"；with regard to"关于"；for fear of"为了避免，害怕"三个短语后一般不接表达时间概念的词，均不合题意。
【答案解析】解析：短语辨析题。由"around volcanoes on the deep sea floor"可推知火山可能是海底生物的能量来源，而这种能量和太阳提供的能量是不相干的，因此，本句所讲能量来源必然不是阳光，由此推断，本题应选other than"不同于，而非"。sooner than"比…更早"；rather than"胜于"；better than"比…更好"；这三个短语均不符题意。
【正确答案】
C
【答案解析】解析：语义衔接题。本题选as"与…一样"引导一个介词结构，as in the seas around Antarctica补充说明前文"…areas still free from introduced species"，意为"还有像南极洲周围的海域那样尚没有引进外来物种的海域"。like"像，如同"为介词，不符句法；such"这样的，某一；这样的人(们)或物"；so"因而，所以；(表示程度)如此，那么"。
【答案解析】解析：固定搭配题。前文讲公海的破坏相当严重，本段讲"最近召开的一次联合国会议终于关注到公海问题"，因此选agenda，构成短语put them on the agenda，意为"把…提上议事日程"。program"节目，程序"；schedule"时间表，进度表"；procedure，"程序，手续"。