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Are you an early riser or a night owl? R...

Are you an early riser or a night owl? Researchers from Aachen University in Germany believe that about 10 percent of people can be classified as “morning people”, who feel more active and function best in the morning.Around 20 percent are night owls—people who naturally tend to stay up late and are more tired during the day.And the rest of us fall somewhere in between, according to New Scientist.

Previous studies have suggested that early risers are more likely to be happy and healthy while night owls experience worse sleep as well as more depression and anxiety during the day.

For a long time, scientists have been trying to find out what causes the differences between the two.A new study suggests that it isn’t just people’s habits—early risers and night owls actually have different brain structures.

Led by Jessica Rosenberg at Aachen University, researchers scanned the brains of 16 early risers, 23 night owls and 20 people with intermediate sleeping hours.They found that the brains of night owls had less “white matter”—which speeds up the transmission(传输) of nerve signals in brain areas associated with depression.

As you know, after people fly in an airplane from one time zone to another, they often suffer from a confused and tired feeling called “jet lag” because their body clocks are out of sync(不同步的) with the new time zone.It usually takes about a week for their bodies to adjust to the new time.But night owls always have difficulty syncing their bodies to the right time due to their brain structure.“It’s like they suffer from permanent jet lag,” said Rosenberg.

The good news is that it is possible for night owls to turn themselves into morning people.According to the researchers, night owls should try to spend as much time in the sunlight as possible and reduce their exposure to artificial light at night to force their body clocks to shift to a more normal rhythm.

1.What does the article mainly discuss?

A.How to turn early risers into night owls.

B.How our habits influence our sleep patterns.

C.What causes the differences between early risers and night owls.

D.Why early risers are happier and healthier than night owls.

2.We can learn from the article that night owls ________.

A.make up almost a third of the human population

B.have more white matter in their brains than other people

C.are more used to artificial night than sunlight

D.have body clocks that are not in agreement with the actual time

3.Jessica Rosenberg’s research suggests that ________.

A.previous studies about night owls are wrong

B.night owls are affected by jet lag more strongly than others

C.white matter helps our brains work more efficiently

D.brain structure might determine people’s chances of suffering from depression

 

1.C 2.D 3.D 【解析】 试题分析:文章把人分为三类,早起的人、晚睡的人(夜猫子)和介于这两者之间的人。研究发现夜猫子是因为脑部结构不一样才会那样的,并且他们更容易患心理疾病。但“夜猫子”转变为晨型人是可能的。 1.1】C 主旨大意题。文章主要是介绍早起的人和夜猫子的不同,原因是两者的脑部结构不同。故选C。 2.2】D 细节理解题。根据最后一段because their body clocks are out of sync(不同步的) with the new time zone.It usually takes about a week for their bodies to adjust to the new time.But night owls always have difficulty syncing their bodies to the right time due to their brain structure.可知,夜猫子的生物钟和实际的时间是不适应的,故选D。 3.3】D 细节理解题。根据倒数第三段They found that the brains of night owls had less “white matter”—which speeds up the transmission(传输) of nerve signals —— in brain areas associated with depression.可知,脑部结构的不同会影响人们患抑郁症的几率,故选D。 【名师点睛】 主旨大意题主要考查学生对所读材料(或所读材料片断)中心思想的概括。做这类题时,考生应通读全文,把握文章大意或中心思想,同时注意文章的主题句,因为主题句表达中心思想,其他句子均围绕主题句进行展开。主题句通常位于文章第一段首句、第一段末句或全文末句等地方,但位于段落中间(通常是第一段或最后一段的中间)也是完全可能的。同时,主题词关键词也是非常重要的,有时候可以直接看出答案。主旨大意题的考查形式很多,如概括标题、主题、段意、中心思想等。 考点:社会实验调查类阅读。
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