2. 外语
  3. The ocean is heating up. That’s the conclusion of a new study that finds that Earth’s oceans now【C1】______ heat at twice the rat

The ocean is heating up. That’s the conclusion of a new study that finds that Earth’s oceans now【C1】______ heat at twice the rat

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问题     The ocean is heating up. That’s the conclusion of a new study that finds that Earth’s oceans now【C1】______ heat at twice the rate they did 18 years ago. Around half of ocean heat intake since 1865 has taken place since 1997, researchers report online in Nature Climate Change.
    Warming waters are known to【C2】______ to coral bleaching(珊瑚白化)and they take up more space than cooler waters, raising sea【C3】______ . While the top of the ocean is well studied, its depths are more difficult to【C4】______ . The researchers gathered 150 years of ocean temperature data in order to get a better【C5】______ of heat absorption from surface to seabed. They gathered together temperature readings collected by everything from a 19th century【C6】______ of British naval ships to modern automated ocean probes. The extensive data sources,【C7】______ with computer simulations(计算机模拟), created a timeline of ocean temperature changes, including cooling from volcanic outbreaks and warming from fossil fuel【C8】______ .
    About 35 percent of the heat taken in by the oceans during the industrial era now resides at a【C9】______ of more than 700 meters, the researchers found. They say they’re【C10】______ whether the deep-sea warming canceled out warming at the sea’s surface.
A)absorb I)heights
B)combined J)indifferent
C)contribute K)levels
D)depth L)mixed
E)emissions M)picture
F)excursion N)unsure
G)explore O)voyage
H)floor
【C4】
选项
答案G
解析 动词辨析题。be difficult to后面应该用动词原形，因此本空应填入动词原形。本句句意为：尽管海洋表面得到了充分的研究，但是深海更难——。由句意可推断，本空应填入含有“探索”意义的动词，故答案为G)。
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