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  3. If you feel tired all the time, you don’t necessarily need to go to bed earlier. The solution could be as simple as taking a fiv

If you feel tired all the time, you don’t necessarily need to go to bed earlier. The solution could be as simple as taking a fiv

admin2010-04-24  40
问题      If you feel tired all the time, you don’t necessarily need to go to bed earlier. The solution could be as simple as taking a five-minute afternoon nap. Children under five have an abundance of energy and one of the reasons is because they nap once or twice a day. Many sleep experts think we are programmed to take a nap during the day, and getting back into this habit can be a solution for those who feel tired all the time. Professor Criss Ezekosky of the Sleep Advisory and Assessment Center thinks that one can feel refreshed after just five minutes; sleep and research has shown that concentration and attention are improved after even a short nap. Sleep is genetically programmed in babies and it’s only as we get older that we learn to sleep about 8 hours at night and not at all during the day. But most research suggests that we are not physically designed to sleep for one-long single block. Before the working day became 9:00 to 5:00, all western sleep patterns were all broken up. Research has shown that in the Middle Ages people’s sleep quite often occurred in 3 distinct parts. A nap in the afternoon, an early evening nap and another longer sleep until dawn. So if you do find yourself feeling sleepy through the day, don’t feel your being lazy by giving in to sleep and having a nap. Your increased energy and alertness will make the rest of your day extra productive.  
According to the passage, the sleep pattern of a baby is determined by
选项 A、its genes.
B、its habit.
C、its mental state.
D、its physical condition.
答案A
解析 文中第六句中的Sleep is genetically programmed in babies表明，婴儿的睡觉模式是由基因遗传决定的，由此可知答案为A 。
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