首页
登录
职称英语
Judging from recent surveys, most experts in sleep behavior agree that there
Judging from recent surveys, most experts in sleep behavior agree that there
游客
2023-06-29
47
管理
问题
Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic (流行病) of sleepiness in the nation. "I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to," says Dr. David. Even people who think they are sleeping enough would probably be better off with more rest.
The beginning of our sleep-deficit (睡眠不足) crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark. " By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to between 7. 5 and eight hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don’t even realize they’re doing it," says Dr. David. "They think they’re okay because they can get by on 6. 5 hours, when they really need 7.5, eight or even more to feel ideally vigorous."
Perhaps the most merciless robber of sleep, researchers say, is the complexity of the day. Whenever pressures from work, family, friends and community mount, many people consider sleep the least expensive item on his programme. "In our society, you’re considered dynamic if you say you only need 5. 5 hours’ sleep. If you’ve got to get 8. 5 hours, people think you lack drive and ambition."
To determine the consequences of sleep deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. "We’ve found that if you’re in sleep deficit, performance suffers," says Dr. David. "Short-term memory is weakened, as are abilities to make decisions and to concentrate." [br] It can be concluded from the passage that one should sleep as many hours as is necessary to_________.
选项
A、improve one’s memory dramatically
B、be considered dynamic by other people
C、maintain one’s daily schedule
D、feel energetic and perform adequately
答案
D
解析
由题干中“one should sleep as many hours as is necessary to”可以定位到文中最后一段的最后两句话。这两句话分别提到睡眠不足表现会很糟糕;短时记忆力会变弱,做决定和集中注意力的能力也会减弱。由此可知睡眠充足会精力充沛、表现好。
转载请注明原文地址:https://tihaiku.com/zcyy/2793324.html
相关试题推荐
近年来,随着中国政治及经济实力的不断提升,学中文的外国人越来越多。Inrecentyears,asChina’spoliticalandecono
专家表示,要想提升交通安全,就需要采取各种综合措施来配合,而交通法规只是解决我国交通安全问题的其中一个方面。Expertssaythattoachiev
近几年来,庙会已经成为人们欣赏民间艺术和体验传统文化的首选之地。Inrecentyears,templefairshavebecomeaprio
TheBritishgovernmentrecentlyannouncedaproposaltointroducehealthcar
TheBritishgovernmentrecentlyannouncedaproposaltointroducehealthcar
[originaltext]Untilrecently,atomatowasjustatomato.[20]Butnowscient
ProfessorSmithrecentlypersuaded35people,23ofthemwomen,tokeepadi
ProfessorSmithrecentlypersuaded35people,23ofthemwomen,tokeepadi
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisu
随机试题
Creationistsaredeeplyenamoredofthefossilrecord,becausetheyhavebee
Forthispart,youareallowed30minutestowriteashortessayentitledSh
土地勘测定界的特点不包括( )。A.综合性 B.滞后性 C.法律性 D.
一个完整的软件系统需从不同视角进行描述,下图属于软件架构设计中的()用于(
下列关于各类风险的说法,正确的是( )。A.声誉风险被视为一种单一风险,与其
可以行输卵管通液术的情况是A.滴虫阴道炎未治愈 B.慢性盆腔炎亚急性发作 C
雪后检查户外熔断器外表面无结冰、无影响绝缘水平的冰溜。
个人商用房贷款可采用( )等还款法。A.按月等额本息还款法 B.按月等额本金
2015年,某航空公司准备在其商用零售部门安装公司有史以来最大的计算机系统。这个
关于条板隔墙的说法正确的有( )。A.当非抗震设防地区的条板隔墙安装长度超过8m
最新回复
(
0
)