(
课件网) 睡眠研究新发现？ 来源：The Economist 体裁：说明文（人与社会/社会热点） What is sleep NREM（non rapid-eye movemnet sleep） 非快速眼动睡眠 heart rate↓ body temperature↓ brain waves↓ N1→N2 N3→N4 body repair memory consolidation REM（ rapid-eye movemnet sleep） 快速眼动睡眠 stimulation of creativity emotion regulation NREM pk REM 90 min 睡眠研究新发现？ 来源：The Economist 体裁：说明文（人与社会/社会热点） 文章赏析 01 题目解析 02 长难句解析 03 外刊阅读练习 04 CONTENTS PART ONE 文章赏析 Birds do it. Bees do it. People do it, though often less than they would like to. Owls do it in the daytime. Sleep is an ancient, universal experience. But partly because it is the order of the day, for a long time sleep was a subject that scientists had not woken up to. It is only in the past half-century or so that it has attracted the attention of dedicated researchers. A new book from Kenneth Miller, a science journalist, sets out to record the field's short but fascinating history. P1+P2 n.顺序、秩序、命令、点餐 意识到 大约 专心致志的 动身出发；开始着手 迷人的 A. It was so commonplace as to be taken for granted. B. Ancient poeple had done thorough research into it. C. There was no high-tech research facility. D. They regarded sleep as too complicated a phenomenon to explain. 1. Part of why scientists failed to explore sleep was because Birds do it. Bees do it. People do it, though often less than they would like to. Owls do it in the daytime. Sleep is an ancient, universal experience. But partly because it is the order of the day, for a long time sleep was a subject that scientists had not woken up to. It is only in the past half-century or so that it has attracted the attention of dedicated researchers. A new book from Kenneth Miller, a science journalist, sets out to record the field's short but fascinating history. P1+P2 A. It was so commonplace as to be taken for granted. B. Ancient poeple had done thorough research into it. C. There was no high-tech research facility. D. They regarded sleep as too complicated a phenomenon to explain. 1. Part of why scientists failed to explore sleep was because 如此...以至于 平凡的；不足为奇的 n. 设施 P3 Its contents range from the discovery of rapid-eye-movement(REM) sleep and circadian rhythms ———the biological clocks that govern humanity's days——— to the effects of sleep deprivation (which can be fatal, at least in lab animals). It also explores the purpose, if any, of dreams. 昼夜节律 剥夺 致命的 P4 Sleep is a state of lowered consciousness and reduced metabolism which takes up about one third of a person's life. Two distinct types of sleep have been recognized: REM(rapid eye movement) and NREMnon-rapid eye movement). The latter, which accounts for the major part of sleep, starts with drowsiness; brain waves become increasingly deeper and slower until brain activity and metabolism fall to their lowest level. In REM sleep, the brain suddenly become ... ...
