Why is it that flying to New York from London will leave you feeling less tired than flying to London from New York? The answer may be a clear case of biology not being able to keep up with technology. This body clocks programmes us to be sleepy twice a day, between 3-5am and again between 3-5pm. Afternoon tea and nap are all cultural responses to our natural biological sleepiness in the afternoon. That is why traveling in a westward direction is more body-clock friendly than flying east. NASA studies of long haul pilots showed that westward travel was associated with significantly better sleep quan-tity and quality than eastward flights. One of the more common complaints of travelers is that their sleep becomes disrupted. There aremany reasons for this: changing time zones and schedules, changing light and activity levels, trying tosleep when your body clock is programmed to be awake, disruption of the internal biological clock andworking longer hours. So, our body clock truly can govern us. A. enable us to sleep 6 hours a day C. regulate the bodys functions 32. The word malady in Paragraph 4 is closest in meaning to. B. discomfort D. excitement A. help you sleep better C. shrink your day 34. Which of the following is NOT mentioned as a reason for the disrupted sleep of travelers? B. Changing light and activity levels. D. Watching out of the plane for a long time. A. you can control your own body clock C. adjusting your watch can help you avoid jet lag 参考答案:31. C 32. B 33. A 34. D 35. D
四年级英语作文:My Teacher-我的老师
四年级英语作文:我的铅笔盒(My Pencil-box)
四年级英语作文:The bird and cat
四年级英语作文:我是一个小哥哥
四年级英语作文:How to improve your English
四年级英语作文:The fun picture
四年级英语作文:We Love Sports
四年级英语作文:my last weekend
四年级英语作文:I Made a New Friend
四年级作文:What is success?
四年级作文:My hobby is lisetening to music
四年级作文:家乡天空
四年级英语作文:Obey the Traffic Rules at Any Time
四年级英语作文:my weekend plan
四年级英语作文:Me
四年级英语作文:我的爷爷(My Grandfather)
四年级英语作文:I love my bedroom
四年级英语作文:Save Water
四年级作文:My Favourite Book
四年级英语作文:暑期难忘的一件事
四年级作文:My dream job
四年级英语作文:我的业余爱好
四年级英语作文:What is success?
四年级英语作文:The Tree in Front of My House
四年级英语作文:My Classmate Qiangqiang
四年级英语作文:Leigang Park
四年级作文:我的小兔子
四年级英语作文:A stupid woman
四年级英语作文:My School
四年级作文:animals
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