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聽力文本：
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.
你中過彩票嗎？沒有？但是這阻止你繼續(xù)買彩票了嗎？如果答案是否定的，那你或許應該稱呼自己是樂天派。
But according to researchers at University College London, human beings are naturally hopeful creatures.
但是根據(jù)英國倫敦大學學院的研究人員的研究發(fā)現(xiàn)，滿懷希望是人類的天性。
It is all in the brain, they say.
他們說這完全是因為我們的大腦。
A study suggests it is very efficient at processing good news:
一項研究發(fā)現(xiàn)，大腦在處理好消息時十分高效：
about 80% of people have a tendency to see the glass as half-full, not half-empty, even if they don't consider themselves to be optimists.
80%的人會選擇看事物的光明面而不是陰暗面，盡管他們可能不認為自己是樂觀派。
The good news is that this brings a health benefit.
好消息是這對健康有益。
Being upbeat and having a positive outlook on life reduces anxiety.
樂觀積極的生活態(tài)度可以降低焦慮感。
A study of nearly 100,000 women showed a lower risk of death from heart disease amongst optimists.
一項對10萬名樂觀女性的調(diào)查顯示她們患心臟病的概率更低。
But it's not always good to be optimistic.
但是樂觀不一定總是好事。
The authors of the study point out the 2008 financial crisis may have been caused by analysts overestimating their assets' performance even in the face of clear evidence to the contrary.
該項研究的發(fā)起人指出，2008年的金融危機的罪魁禍首可能是資產(chǎn)分析師。他們過高估計資產(chǎn)，盡管當時已經(jīng)有證據(jù)表明他們是錯的。
There are personal health risks too.
樂觀還有可能威脅個人健康。
Dr. Tali Sharot, lead researcher, said: "Smoking Kills' messages don't work because people think their chances of having cancer are low.
首席研究員塔利·夏洛特博士說：‘吸煙有害健康’的警告根本起不到作用，因為人們認為自己得癌癥的幾率很低。
There's a very fundamental bias in the brain.”
人們的大腦本能地偏愛好的事情。
But, as they say, every cloud has a silver lining.
但是，俗話說，禍兮福所倚。
Even if seeing the world through rose-tinted glasses poses a risk to our health, we've not going to skip sleeping.
就算我們處世積極，我們也不用擔心到夜不能寐。
Let's just keep our chins up and keep smiling!
讓我們昂首挺胸，保持微笑吧！
Questions 23 to 25 are based on the passage you have just heard.
請根據(jù)剛聽到的短文回答23-25題。
Question 23. What did researchers at University College London recently find?
23.英國倫敦大學學院的研究員最近有什么發(fā)現(xiàn)？
Question 24. What do the researchers mention the 2008 financial crisis for?
24.研究者們?yōu)槭裁刺崞?008年的金融危機？
Question 25. What does the speaker suggest people do?
25.說話者建議人們怎么做？
