What have scientists concluded through studies over the years?

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问题 What have scientists concluded through studies over the years?
  
Scientists have interrogated the link between seasonal weather and crime, consistently finding that warm summer temperatures yield more violence. Higher heat tends to fray nerves and shorten tempers, inspiring aggression, which is why riots tend to happen in the warmer months.
    Scientists in Colorado, however, recently explored what happens to crime when winters become warmer, which is the first attempt in this regard. Their study found that milder winters—which are occurring more frequently as a result of climate change—caused regional crime rates to rise over the past several decades. The researchers think crime increases during a warmer-than-normal winter because people don’t hunker down inside to stay warm.
    "Basically, more pleasant weather increases the chance that people will go out to restaurants, cafes, parks, whatever it may be,’1 Ryan Harp, a doctoral candidate in the University of Colorado Boulder’s department of atmospheric and oceanic sciences, and the study’s lead author said, "and a potential perpetrator and potential victim will cross paths without a guardian present." By "guardian" he means someone in a position to prevent or stop a crime, such as a police officer.
    Harp stressed, however, that the paper, which appears in the journal Geo Health, doesn’t look directly at the influences of climate change, but simply how crime totals for each month varied with the temperature for that same month.
    "Though it’s easy to make a connection between our study and climate change—in fact, taking a look at that is one of our next projects—we only looked at how the year-to-year swings in temperature connected with the year-to-year swings in crime for a particular location," Harp said. "Both temperature and violent crime go up and down each year, but all that we were interested in was whether or not they do so together."
    The answer appears to be yes, although it skirts the notion that hot temperatures drive aggressive behavior. Rather, it suggests that weather changes peoples’ daily activities, spurring more crime. Scientists say three factors lead to crime during a mild winter: a motivated offender, a suitable target and no one there to stop it.

选项 A、Warmer winters yield higher crime rates around the world.
B、Warmer summers yield higher crime rates around the world.
C、Warmer winters yield higher crime rates in the region.
D、Warmer summers yield higher crime rates in the region.

答案C

解析 特定信息的找寻与判断。根据原文“Scientists in Colorado…Their study found that milder winters…caused regional crime rates to rise over the past several decades”,可知科罗拉多的研究团队发现的是冬天越是温暖,区域犯罪率越高。选项A和选项B中“around the world”这一范围错误,选项B和选项D中“Warmer summers”这一对象错误。因此,本题答案为选项C。
(1) 根据题干确定区间,再根据指示词锁定相关内容。
(2) 准确理解相关词汇。根据关键词“Colorado”确定答题区间,“found”一词锁定具体内容,再根据“regional”一词排除范围不同的干扰项,下文的“for a particular location”也是提示词。
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