2017届浙江省高考英语一轮阅读理解训练（7）_高考复习指南

　　浙江省松阳县2017高考英语一轮阅读理解训练（7）及答案

　　【四川省凉山州2017第二次诊断性测试】

　　阅读下面五篇短文，从每题所给的四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

　　Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and

　　now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and

　　potentially harming sea life.

　　Montana State University scientist Robert Dore has been researching the water in the Pacific

　　Ocean for almost two decades. "We've been going to the same spot in the Pacific Ocean, and we

　　try and characterize long-term change in the open ocean environment. And one of the key things

　　that we measure is COx levels. And We've been able to record this increasing quantity of

　　atmospheric CO, into the ocean. "Scientists expected that as atmospheric CO2 increased, more and一

　　more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of

　　the sea water, with a potentially harmful impact on shellfish and coral in particular.

　　"As carbon dioxide dissolves in the water, or seawater in this case, it forms a weak acid,

　　carbonic acid," Dore explains. "And therefore, as the concentration of CO2 in the atmosphere goes

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