It is common to have difficulties sleeping during the day. Humans are naturally wired to s

It is common to have difficulties sleeping during the day. Humans are naturally wired to sleep best at night and be awake during the day. However, modern work schedules require some people to try to accommodate the unnatural schedule of shift（轮班）work — being awake at night and sleeping during the day.
In order to make this adjustment, you need to pay special attention to your sleep environment and your preparation for sleep. If shift work is a necessary part of your work life, here are some suggestions that may help.
Arrange to sleep uninterrupted in a quiet, dark room. This means you may have to turn off or unplug your phone, hang darkening curtains on the windows or wear a sleep eye mask, and train your family and friends to leave you alone while you sleep.
Fit in a nap（小睡）. When your daytime sleep period is too short, taking a short nap of less than 30 minutes just before work or on a break has been shown to improve alertness and enhance performance.
Develop and follow a sleep routine. It's best if you go to sleep and wake up at the same time every day. Try not to vary this too much on weekends. Your body likes routine.
Take extra care to make healthy choices. You may be tempted to reach for unhealthy foods or nicotine to stay awake or alcohol to try to sleep. But ultimately these choices are more harmful than helpful.
If you have tried all these things and are still having problems getting enough quality sleep during the day, talk to your doctor or a sleep specialist. Sometimes medications（药物治疗）may be helpful and safe. In other cases, there may be an underlying sleep disorder that needs to be addressed.
【小题1】The purpose of the text is to .A．persuade workers to have a god sleep.B．advise night workers to keep healthyC．encourage workers to do day workD．help night workers to sleep well【小题2】What does the author recomusend?A．A suitable account of alcohol to help sleep.B．A regular life on weekday’s and weekends.C．A dark room without phoebes to sleep in.D．A break for sleeping anytime during the day.【小题3】On which condition should a person turn to a sleep specialist for help?A．If he suffers from a sleep disorder for the first time.B．If a good sleep environment is greatly needed for him.C．If he falls to get quality sleep through his own efforts.D．If he has the problem of bailing to sleep in the daytime.【小题4】We can learn from the test that .A．night workers need a long time to fall asleepB．constant breaks at work help to improve performanceC．it is difficult to create a good sleep environmentD．night work requires people to adjust their body clocksD

(答案→)D 解析：作者提供了一些夜班工人如何安排好自己睡眠的建议。【小题1】主旨大意题。根据第二段的here are some suggestions that may help. 可知作者提供了一些夜班工人如何安排好自己睡眠的建议，选D【小题2】细节题：根据文章的第五段的Try not to vary this too much on weekends. 可知此题答案。B【小题3】细节题：根据文章最后一段的If you have tried all these things and are still having problems getting enough quality sleep during the day talk to your doctor or a sleep specialist. 可知此题答案选C【小题4】推理题：根据文章内容可知人的睡眠是有固定规律的，人们是白天工作而钟上睡觉，而对于晚上工作的人就需要调整自己的生物钟。选D

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