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　　Part Ⅲ Reading Section A(卷二)

　　The ocean is heating up. That's the conclusion of a new study that finds that Earth's oceans now absorb（27）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.

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　　Warming waters are known to contribute（28）to coral bleaching（珊瑚白化） and they take up more space than cooler waters, raising sea levels（29）. While the top of the ocean is studied, its depths are more difficult to explore（30）The researchers gathered 150 years of ocean temperature data in order to get better picture（31）of heat absorption from surface to seabed. They gathered together temperature readings collected by everything from a 19th century voyage（32）of British naval ships to modern automated ocean probes. The extensive data sources, combined（33）with computer simulations（計(jì)算機(jī)模擬）, created a timeline of ocean temperature changes, including cooling from volcanic outbreaks and warming from fossil fuel emissions（34）.

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About 35 percent of the heat taken in by the oceans during the industrial era now residents at a depth（35）of more than 700 meters, the researchers found. They say they're unsure（36）whether the deep-sea warming canceled out　warming at the sea's surface.

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