New research shows that rising an hour earlier than usual reduces(减少) the risk of depression(抑郁).  

Researchers studied 85,000 people. A third thought of themselves as early risers. About 9% stayed up late at night, while the rest appeared to be somewhere in the middle. Researchers found that getting up an hour earlier, in people who usually get up later, helps improve their mood(情绪).

However, the researchers don’t completely understand the reasons why rising an hour earlier is so good for preventing or reducing depression. They thought that it was because getting up an hour earlier made people enjoy more hours of sunshine. However, this is just a guess. More research is needed to prove it.

Then how can people wake up an hour earlier? It can be difficult at first. That’s because in the morning they feel sleepy, while at bedtime they’re far more active. What they can do is to prepare themselves for sleep around two hours before actually going to bed. They can do this by reducing their activities. Therefore, they should eat less, drink less, and do less. Similarly, they could do some physical exercise at the beginning of the day to help wake them up.

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1.About _________ people stayed up late at night in the research.

A 85,000

B 28,333

C 7,650

D 5,000

解析：选C。C 数字计算题。根据第二段的“Researchers studied 85,000 people...About 9% stayed up late at night”可知，研究人员调查了85,000个人，其中9%的人熬夜，即有7,650个人熬夜。故选C。

2.The research shows people who get up earlier will_______.

A become more outgoing

B feel better

C become more sleepy

D grow fatter

解析：选B。B 推理判断题。根据第二段最后一句“getting up an hour earlier, in people who usually get up later, helps improve their mood”可知，平时晚起床的人早起一个小时能帮助改善他们的情绪，即他们会感觉更好。故选B。

3.What does the underlined word “They” refer to?

A The studies.

B Early risers.

C The reasons.

D The researchers.

解析：选D。D 词意指代题。根据第三段划线句子前面的“the researchers don’t completely understand the reasons why...”可知，研究人员们并不知道为什么早睡对抑郁有益，他们做出了猜测，因此they指的是“研究人员”。故选D。

4.What’s the last paragraph mainly about?

A How to reduce activities.

B When to do physical exercise.

C How to get up an hour earlier.

D When to prepare themselves for sleep.

解析：选C。C 段落大意题。本段第一句“Then how can people wake up an hour earlier? ”就是该段主题句，即该段主要介绍了如何做到提前一小时起床。故选C。

5.In which part of a newspaper can we find the passage?

A Health.

B Sports.

C Education.

D Technology.

解析：选A。A 推理判断题。通读全文可知，本文向我们介绍了早起一小时对心理健康的影响，与健康相关。故选A。