人与社会：开着灯睡觉好吗？学案 高考英语外刊精读

1、人与社会：开着灯睡觉好吗?导读：城市里，夜幕降临，街灯、霓虹灯随之闪烁起来，整晚灯火通明，晚上休息时即便拉上 窗帘，房间里也或多或少会透进灯光，你是否在意过这些或明或暗的灯光呢？还有些人可能 因为晚上怕黑，开灯睡觉或临睡前点上一盏小夜灯来寻求平安感。无论是有意还是无意，晚 上人们睡觉时可能都会暴露于一定的灯光下，而这对我们的健康有没有影响呢？下面读一篇 华盛顿邮报的文章了解一下吧！一、语篇泛读From the streetlights outside our bedrooms to the lamps and devices inside, sleeping with some amount

2、of light has become a way of life for many.That may not be such a bright idea. Research suggests that sleeping in a moderately lit room could affect metabolic and cardiovascular health compared with snoozing in a room with dimmer light.In a study published in PNAS, researchers at Northwestern Univer

3、sity had two groups of 10 young adults sleep in differently lit rooms. One group slept in rooms with dim light for two nights; the other slept one night in a room with dim light and the next in a room with moderate overhead light about the equivalent of an overcast day. Participants wore heart monit

4、ors at night. In the morning, they did a variety of glucose tests.Both groups got the same amount of sleep but their bodies experienced very different nights. Both groups responded well to insulin the first night, when they both slept in dim lighting.On the second night, however, the group sleeping

5、in brighter lighting didnt respond as well to insulin. The dim light sleepers, insulin resistance scores fell about 4 percent on the second night, while the bright sleepers rose about 15 percent. Their heart rates were faster on the bright night, too.The heightened heart rate and other measures led

6、the researchers to conclude that light activates the sympathetic nervous system, which usually dominates bodily functions during the day.“Just a single night of exposure to moderate room lighting during sleep can impair glucose and cardiovascular regulation, which are risk factors for heart disease,

7、 diabetes and metabolic syndrome,“ said Phyllis Zee, chief of sleep medicine at Northwestern University Feinberg School of Medicine and a Northwestern Medicine physician who led the study, in a news release. “Its important for people to avoid or minimize the amount of light exposure during sleep.”Th

8、e study was small and only tracked subjects for a limited time. More investigation is needed, the researchers write, but light exposure during sleep “could have implications for those living in modern societies where indoor and outdoor nighttime light exposure is increasingly widespread.”选自 Washingt

9、on Post二、语篇精读From the streetlights outside our bedrooms to the lamps and devices inside, sleeping with some amount of light has become a way of life for many.device n.装置，仪器，设备way of life生活方式many可以直接表示“许多人”，同样地，some也可表示“有些人”。That may not be such a bright idea. Research suggests that sleeping in a mod

10、erately lit room could affect metabolic and cardiovascular health compared with snoozing in a room with dimmer light.moderately adv. 一般地，勉强地；适中，适度一 moderate adj.中等的；适度的；克制的; 和缓的v.使克制；使和缓一 immoderate adj.反义词light v. lit, lit照亮，使明亮metabolic adj.新陈代谢的cardiovascular adj. 心血管的snooze v.小睡，打盹 dim adj. dimm

11、er, dimmest不明亮的，光线暗淡的，昏暗的In a study published in PNAS, researchers at Northwestern University had two groups of 10 young adults sleep in differently lit rooms. One group slept in rooms with dim light for two nights; the other slept one night in a room with dim light and the next in a room with moder

12、ate overhead light about the equivalent of an overcast day. Participants wore heart monitors at night. In the morning, they did a variety of glucose tests.overhead adj.头上方的，地面以上的adv.在头上方，在空中equivalent n.相等的东西，等量，对应词adj.（价值、数量、意义、重要性等）相等的, 相同的overcast adj.阴天的，多云的,阴暗的heart monitor心脏监测器glucose n.葡萄糖Bot

13、h groups got the same amount of sleep but their bodies experienced very different nights. Both groups responded well to insulin the first night, when they both slept in dim lighting.insulin n.胰岛素On the second night, however, the group sleeping in brighter lighting didnt respond as well to insulin. T

14、he dim light sleepers9 insulin resistance scores fell about 4 percent on the second night, while the bright sleepers rose about 15 percent. Their heart rates were faster on the bright night, too.resistance n.抵抗，对抗；抵抗，反对insulin resistance胰岛素抵抗resist v. 对抗； 抵抗； 忍住 resist doing somethingThe heightened

15、heart rate and other measures led the researchers to conclude that light activates the sympathetic nervous system, which usually dominates bodily functions during the day.heighten v.（使）加强，提高，增强conclude v.断定，推断出，得出结论tivate v.使活动，激活，使活化sympathetic adj.同情的；交感神经的sympathetic nervous system 交感神经系统dominate

16、 v.支配，控制，左右，影响bodily adj.人体的，身体的adv.移动全身地，用力地；整个地，完全地“Just a single night of exposure to moderate room lighting during sleep can impair glucose and cardiovascular regulation, which are risk factors for heart disease, diabetes and metabolic syndrome,said Phyllis Zee, chief of sleep medicine at Northw

17、estern University Feinberg School of Medicine and a Northwestern Medicine physician who led the study, in a news release. “Its important for people to avoid or minimize the amount of light exposure during sleep.” impair v.损害，削弱 diabetes n.糖尿病 syndrome n.综合征，综合病症 exposure n.暴露-expose v.显露；揭露；使暴露The s

18、tudy was small and only tracked subjects for a limited time. More investigation is needed, the researchers write, but light exposure during sleep “could have implications for those living in modern societies where indoor and outdoor nighttime light exposure is increasingly widespread.track v.跟踪（进展情况

19、）implication n.可能的影响（作用或结果）三、读后练习一一语法填空From the streetlights outside our bedrooms to the lamps and devices inside, sleeping with some amount of light 1.(become) a way of life for many. That may not be such a bright idea. Research suggests that sleeping in a moderately lit room could affect metabolic 2. cardiovascular health compared with 3.(snooze) in a room with 4.(dim) light. In a study 5.(publish) in PNAS, researchers at Northwestern University had two groups of 10 young adults sleep in 6.(different) lit rooms. One group slept in rooms with dim light for two