A new study shows that the early bird indeed gets the worm. According to the scientists, getting up just a little earlier than you usually would, could actually improve how you feel and your health. 

Scientists say we all have a so-called chronotype — a habit of when we go to sleep. The habit is partly determined (决定) through genetics (遗传). And that chronotype plays a part when it comes to our mental health. Science Daily writes that “...night owls are as much as twice as likely to suffer from depression (抑郁) as early risers, no matter how long they sleep.”

So, how early do we have to get up to get the benefits? According to the study, you only need to get up one hour earlier in order to reduce the risk of depression. You can achieve this by setting your alarm fifteen minutes earlier every day. It’s as easy as that!

Bad news early risers: the research doesn’t mention anything about people who already get up pretty early. But if you usually don’t get up before 8 a.m., you might want to try and set your alarm a little earlier tomorrow morning.

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1.What does the writer mean by “the early bird indeed gets the worm”?

A Early risers are happier and healthier.

B The more you sleep, the healthier you are.

C The later you go to bed, the earlier you get up.

D The earlier you get up, the more work you get.

解析：选A。A 推理判断题。根据划线部分后面句子“根据科学家的说法，比平时早起一点，可以改善你的情绪和健康”可知，早起的人会感到更开心和更健康。故选A。

2.What do researchers think of chronotype?

A It’s unnecessary.

B It’s important.

C It’s surprising.

D It’s special.

解析：选B。B 细节理解题。根据第二段中的“And that chronotype plays a part when it comes to our mental health.”可知，chronotype在我们的精神健康方面起着一定的作用，即很重要。故选B。

3.We have to get up __________ earlier to reduce the risk of depression.

A 15 minutes

B 30 minutes

C 60 minutes

D 75 minutes

解析：选C。C 细节理即题。根据第三段中的“you only need to get up one hour earlier in order to reduce the risk of depression”可知，你只需要比平时早起一个小时(即60分钟)就可以降低抑郁的风险。故选C。

4.When may the writer suggest people get up in the morning?

A Before 8 a.m.

B After 8 a.m.

C Before 9 a.m.

D After 9 a.m.

解析：选A。A 细节理解题。根据最后一段的最后一句“如果你通常不会在早上8点之前起床，那明天就试一下早点起床”，即作者建议早上8点之前起床。故选A。

5.Why did the writer write the passage?

A To tell us how to keep healthy.

B To help us feel better at night.

C To advise us to get more sleep.

D To tell us the results of a study.

解析：选D。D 推理判断题。本文主要介绍了一项关于早起可以改善情绪和心理健康的相关科学研究，主要是为了告诉我们该研究的相关结果。故选D。