Question

Do You Have’ Social Jet Lag(社交时差)？

People who have different sleep patterns on the weekends than they do during the work week may experience “social jet lag”.1. For every hour of social jet lag, the risk of being overweight or obese rises about 33%,says researcher Till Roenneberg, PhD, a professor at the Institute of Medical Psychology at the University of Munich.

Roenneberg, who created the term, says social jet lag is caused by the shift in sleep schedule that many people experience on their days off, compared to work days.2.

It goes like this: You don’t have to get up for work so you don’t take trouble setting the alarm. That means you get up an hour or two later than you might during the work week.3.

As a result, many people get more sleep on their days off than they do during the week, and they sleep on a slightly different schedule-a schedule that is closer to their body’s natural rhythms.

4. “The behavior looks like most people on a Friday evening fly from Paris to New York or from Los Angeles to Tokyo and on Monday they fly back. Since this looks like almost a travel jet lag situation, we call it social jet lag.” he says.

5.When you arrive in a different place, the sun is coming up and setting at a different time, and your body can reset its own clock to match. With social jet lag, the schedule disturbance is lasting because a person stays in the same place. “They have to live a life almost in a different time zone in comparison to their biological clock,”Ronneberg says.

A.Sleep, he thinks ,should get more respect.

B.He guesses that it affects about two-thirds of the population.

C.A key difference between travel jet lag and social jet lag, however, is light.

D.And depending on what type of person you are, the difference can be significant.

E.Roenneberg explains switching sleep schedules this way feels like changing time zones.

F.A new study shows this shift in sleep schedule is connected with obesity.

G.You may also push your bedtime back so you can go out with friends.

Answer

1.F

2.B

3.G

4.E

5.C

【解析】

这是一篇说明文。本文主要讲了社交时差，介绍了人和人关于社交时差的不同，造成社交时差的原因和相关研究等。

1.

根据后文For every hour of social jet lag, the risk of being overweight or obese rises about 33%,says researcher Till Roenneberg, PhD, a professor at the Institute of Medical Psychology at the University of Munich.可知慕尼黑大学医学心理学研究所的教授，研究员Till Roenneberg博士说，每隔一小时的社会时差，超重或肥胖的风险就会增加33%。由此可知，研究表明睡眠时间的改变与肥胖有关。故F选项“一项新的研究表明，睡眠时间的改变与肥胖有关”符合上下文语境，故选F。

2.

根据上文Roenneberg, who created the term, says social jet lag is caused by the shift in sleep schedule that many people experience on their days off, compared to work days.可知创造了“社交时差”一词的Roenneberg说，“社交时差”是由睡眠时间的变化引起的，与工作日相比，许多人在休息日的睡眠时间发生了变化。由此可知，本句承接上文继续说明Roenneberg对社交时差影响的看法。故B选项“他猜测它影响了大约三分之二的人口”符合上下文语境，故选B。

3.

根据上文It goes like this: You don’t have to get up for work so you don’t take trouble setting the alarm.That means you get up an hour or two later than you might during the work week.可知它是这样的：你不必起床去上班，这样你就不会为设定闹钟而烦恼。这意味着你比工作日晚一两个小时起床。由此可知，本句承接上文说明，可以推迟起床时间，那么也可以推迟睡觉的时间，故G选项“你也可以推迟睡觉时间，这样你就可以和朋友出去玩了”符合上下文语境，故选G。

4.

根据后文“The behavior looks like most people on a Friday evening fly from Paris to New York or from Los Angeles to Tokyo and on Monday they fly back. Since this looks like almost a travel jet lag situation, we call it social jet lag.” he says.可知“这种行为看起来就像大多数人周五晚上从巴黎飞到纽约，或者从洛杉矶飞到东京，然后周一再飞回来一样。因为这看起来像是旅行时差反应，所以我们称之为社会时差反应。”他说。由此可知，Ronneberg将这种改变睡眠时间的方式比作是在改变时区一样。故E选项“Ronneberg解释说，用这种方式改变睡眠时间就像改变时区一样”符合上下文语境，故选E。

5.

根据后文When you arrive in a different place, the sun is coming up and setting at a different time, and your body can reset its own clock to match. With social jet lag, the schedule disturbance is lasting because a person stays in the same place.可知当你到达一个不同的地方，太阳在不同的时间升起和落下，你的身体可以调整自己的时钟来匹配。在社会时差中，由于一个人呆在同一个地方，所以时间表上的干扰会持续下去。由此可知，本段是在说明旅行时差和社交时差之间的关键区别。故C选项“然而，旅行时差和社交时差的关键区别是轻微的”符合上下文语境，故选C。