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  3. For almost two centuries now, scientists have noticed a place’s suicide rate bears troubling links to the changing of the season

For almost two centuries now, scientists have noticed a place’s suicide rate bears troubling links to the changing of the season

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问题     For almost two centuries now, scientists have noticed a place’s suicide rate bears troubling links to the changing of the seasons and the friendliness of its climate.
    In 1881, the Italian physician Enrico Morselli noted that suicide rates peak in the summer, deeming the effect "too great for it to be attributed to chance of the human will". Two decades later, the French sociologist Emile Durkheim noticed the same effect—though he also found the suicide rate was higher in Scandinavian countries.
    Even today, CDC data confirms that suicides peak in the United States in the early summer. Now, scientists have identified one more way that climate shapes suicide—and, worryingly, they have projected that it will only become more pronounced as suicide rates rise in a rapidly warming world.
    Unusually hot days cause the suicide rate to rise, according to a study published Monday in Nature Climate Change. If a month is 1 degree Celsius warmer than normal, then its suicide rate will increase by 0. 7 percent in the United States and 2. 1 percent in Mexico.
    " It’s sort of a brutal finding," says Marshall Burke, a professor of earth science at Stanford University and one of the authors of the paper. The finding has anxious implications for a world whose climate is rapidly changing. The authors project that roughly 14,000 people—and as many as 26,000—could die by suicide in the United States by 2050 if humanity does not reduce its emissions of greenhouse-gas pollution.
    It also concludes that humans can do little about this suicide-climate link beyond developing better medical care to address suicide specifically. The normal ways that people adapt to high temperatures generally—by installing air conditioners, for instance—do not seem to affect the suicide rate.
    Suicide is the second most-common cause of death among Americans between 10 and 34 years of age. In other words, more people are dying by suicide than used to.
What can you conclude from the passage?
选项 A、Unusually hot days have profound effects on people’s mental health.
B、Scientists have identified one more way that climate shapes suicide.
C、Suicides peak in the United States in the early summer.
D、Suicide rate was higher in Scandinavian countries.
答案A
解析 推理判断题。分析整篇文章可以得出什么结论?本文主要介绍的其实就是气候变化对自杀率的影响，这个在第一段就有所提及。[B]“科学家发现了另外一种气候影响自杀的方式”，[C]“初夏美国的自杀率达到顶峰”和[D]“斯堪的纳维亚地区国家的自杀率更高”这些说法都太过片面，没有总结性，只有[A]“反常的炎热天气对人的精神健康有深远的影响”最为贴切。
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