2016年12月四级 第2套 Section A 选词填空

The ocean is heating up. That's the conclusion of a new study that finds that Earth's oceans now __26__ 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 __27__ to coral bleaching(珊瑚白化) and they take up more space than cooler waters, raising sea __28__ . While the top of the ocean is studied, its depths are more difficult to __29__ The researchers gathered 150 years of ocean temperature data in order to get better __30__ of heat absorption from surface to seabed. They gathered together temperature readings collected by everything from a 19th century __31__ of British naval ships to modern automated ocean probes. The extensive data sources, __32__ 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 __33__ .

About __35__ percent of the heat taken in by the oceans during the industrial era now residents at a __34__ of more than 700 meters, the researchers found. They say they're __35__ whether the deep-sea warming canceled out warming at the sea's surface.