Question

    Have you ever turned off your alarm clock on the weekend to hope that it would pay off your weekly sleep debt (债 )? A study in Current Biology may crush those hopes, which means the catch-up sleep weekend is not helpful. The bad health effects of sleep deprivation ( 缺乏 ) on weekdays cannot be repaid by long weekend sleep.

According to a study by the University of Colorado, participants who took part in the study only slept for five hours on weekdays while sleeping as much as they wanted during a weekend. To our surprise, they got nearly three pounds over two weeks and experienced metabolic disruption (代谢混乱) that would make them become ill easily.

“If there are benefits of catch-up sleep, they’re gone when you go back to your routine. It’s very short-lived,” said Kenneth Wright, director of the sleep laboratory. “These health effects are long-term. It’s kind of like smoking once was—people would smoke and wouldn’t see an immediate effect on their health, but people will say now that smoking is not a healthy lifestyle choice.”

Kenneth Wright said that the study suggests sleep should come first, especially for the people spending a lot of time in watching television or on smart phones. “Even when people don’t have a choice about losing sleep because of child-care responsibilities or job schedules, they should think about sleep in the same way they think about a healthy diet or exercise.”

Michael Grandner, the sleep program director at the University of Arizona College of Medicine, said,“Imagine a person who ate nothing but cheeseburgers and French fries, Monday through Friday, but only had vegetables on weekends and tried to call that a healthy diet. That is just what people are doing when they sleep less on weekdays with the idea that they can make up for it on the weekend,” he argued.

Some other researchers found an interesting difference between men and women, in which women got less recovery sleep on the weekend, and they also were able to control their eating behavior better than men on weekends.

1.The word “crush” in Paragraph 1 probably means ________.

A.build B.break C.show D.take

2.Which of the following is TRUE according to Kenneth Wright?

A.People who sleep less would become fatter.

B.The catch-up sleep is helpful over the long term.

C.Sleep is as important as a healthy diet and exercise.

D.People who keep to their routines would be healthy.

3.What is the main purpose of this passage?

A.To give us some advice on weekday sleep.

B.To encourage us to sleep more on weekends.

C.To share researchers’ unhappy experiences of sleep.

D.To introduce some researches on weekend catch-up sleep.

Answer

1.B

2.C

3.A

【解析】

本文讲述了睡眠不足对人的影响，并且呼吁人们应该把睡眠放在第一位。

1.词句猜测题。根据前文Have you ever turned off your alarm clock on the weekend to hope that it would pay off your weekly sleep debt及hich means the catch-up sleep weekend is not helpful，可知，有些人希望通过周末补觉能弥补睡眠，然而这个研究却打破了人们的这种希望，所以crash表示“打破”。故选B。

2.推理判断题。根据If there are benefits of catch-up sleep, they’re gone when you go back to your routine“如果补觉有什么好处，当你回到正常的生活中，这些好处就消失了”，可知，补觉是没什么帮助的，所以B选项是错误的。根据they should think about sleep in the same way they think about a healthy diet or exercise“他们应该用考虑健康饮食或运动的同样方法来考虑睡觉”，可知，睡觉和健康饮食及运动是一样重要的，所以C选项是正确的，而A和D选项在原文中并未提及。故选C。

3.主旨大意题。通读本文，可知，本文通过一些研究告诉人们，想周末补觉来弥补睡眠的这个想法是错误的，睡眠对人体的健康影响是长期的，所以本文的目的是给出一些关于平日睡眠的建议。故选A。