2. 考研
  3. Ever won the lottery？No？But did that stop you buying another lottery ticket？If the answer is another“no”，you might call yourself

Ever won the lottery？No？But did that stop you buying another lottery ticket？If the answer is another“no”，you might call yourself

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问题 Ever won the lottery？No？But did that stop you buying another lottery ticket？If the answer is another“no”，you might call yourself an optimist．
    According to researchers at University College London，human beings are sanguine creatures．It is all in the brain，they say．A study suggests that human brain is very efficient at processing good news：about 80％of people have a tendency to see the glasses half-full，not half-empty，even if they don’t consider themselves to be optimists．
  The good news is that this brings a health benefit．Having a positive outlook on life reduces anxiety．A study of nearly 100，000 women showed a lower risk of death from heart disease among optimists．
    But there are problems in always having all optimistic attitude．The authors of the study point out that the 2008 financial crisis may have been caused by analysts over estimating their assets’performance even in the face of clear evidence to the contrary．
    There are personal health risks too．Dr．Tali Sharot，lead researcher，said：“Smoking
Kills，messages don’t work since people think their chances of cancer are low．There’s a very
fundamental tendency in the brain．”
     But，as they say，every cloud has a silver lining．Even if seeing the world through rose-colored glasses poses a risk to our health，it’s not something that is likely to cause us to lose sleep．Let’s just keep our chins up and keep smiling !
What is the main idea of the passage?
选项 A、People tend to be optimistic even in crisis．
B、Optimists enjoy life better than pessimists．
C、Being optimistic has both benefits and risks．
D、Optimism is what keeps US going forward．
答案C
解析 主旨题。本文讲到乐观态度给人们生活带来的好处和坏处。这由以上几个题目答案的分析也可总结出来。故本题选C。
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