首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Longer duration of sleep. B、High efficiency of sleep. C、Better patterns of sleep. D、More security in sleep. B新闻最后提到,人类祖先从睡到树上转
A、Longer duration of sleep. B、High efficiency of sleep. C、Better patterns of sleep. D、More security in sleep. B新闻最后提到,人类祖先从睡到树上转
admin
2021-06-15
21
问题
(5)Humans need less sleep than other mammals, yet their slumber is more efficient, said researchers at Duke University in North Carolina. In their study, the scientists researched sleep patterns of hundreds of animals. They discovered humans sleep for shorter periods of time compared to other animals. The study also concluded that a human’s sleep is higher quality.(6)A deeper stage of sleep, called rapid eye movement sleep, or REM, makes up 25 percent of human’s sleep. In primates like lemurs or monkeys, REM sleep does not reach the five percent mark.
"Humans are unique in having shorter, higher quality sleep," said David Samson, a study co-author. Samson’s research team found that humans can prosper with an average of seven hours of sleep a day. Other primates need as many as 14 to 17 hours of sleep. Samson said human sleep habits evolved during prehistoric times. Human ancestors moved from sleeping in trees to sleeping on the ground.(7)Better sleeping habits resulted in better sleep in a shorter amount of time.
5. What can we learn about human’s sleep?
6. What can we learn about REM?
7. What do the better sleeping habits result in?
选项
A、Longer duration of sleep.
B、High efficiency of sleep.
C、Better patterns of sleep.
D、More security in sleep.
答案
B
解析
新闻最后提到,人类祖先从睡到树上转变为睡到地上,而更好的睡眠习惯导致短时间就能睡得更好。
转载请注明原文地址:https://kaotiyun.com/show/3dO7777K
0
大学英语四级
相关试题推荐
Searchingforloveisnolongerjustafavoritesubjectforsongs.Ithasalsobecomeahugeindustry.Expertssaythatthe
Althougheachbabyhasanindividualscheduleofdevelopment,generalpatternsofgrowthhavebeenobservedThreeperiodsofdev
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshavelongbeenaccusedofkillingfarmanimals.Theyare
A、Supervisingfinancialtransactions.B、Takingchargeofpublicrelations.C、Makingloanstoprivatecompaniesindevelopingcou
Ithoughthavingababywouldhurtmywritingcareer.Iwaswrong.A)Ialmostdidn’thaveachildbecauseofmycareerasa
Ithoughthavingababywouldhurtmywritingcareer.Iwaswrong.A)Ialmostdidn’thaveachildbecauseofmycareerasa
Withtheworld’spopulationestimatedtogrowfromsixtoninebillionby2050,researchers,businessesandgovernmentsarealr
A、Itmakesthefuelburnmoreefficiently.B、Ithelpsreleasemoreunburnedfuel.C、Itiseasytoinstall.D、Itisverycheap.A
基尼指数(Ginicoefficient)是一个反映收入分配程度的指标(index)。去年中国基尼指数为0.474,表明居民贫富差距(wealthgap)比较大。虽然贫富差距是任何一个发展中国家都会面临的问题,它还是引起了人们对中国发展和社会稳定的担忧
随机试题
徐志摩《再别康桥》的诗性美感主要体现在()
关于隐睾的危害,下列哪项是罕见的
自发性气胸特发性患者多见于
耳屏前,下颁骨髁状突后缘的腧穴是
男孩,1岁半。平日偏食,常有腹泻、咳嗽,已会独立行走,玩耍正常。近2个月来面色苍黄,逗之不笑,时有头部、肢体颤抖,不能独站。外周血象:血红蛋白100g/L,红细胞2.5×1012/L,白细胞数4×109/L,中性粒细胞分叶过多。本例可诊断为
甲准备杀死自己患有精神病的妻子乙。甲打算先给乙吃安眠药,等乙熟睡后,将乙用绳子勒死。但还未等甲实施绞杀行为时,乙就因吃了过量的安眠药而死亡。对于甲的行为性质的认定,下列哪一选项是正确的?
保险是一种法律行为、合同行为。若接受损失赔偿的一方是被保险人,则提供损失赔偿的另一方是( )。
国家工作人员在国内公务活动或者对外交往中接受礼物,依照国家规定应当交公而不交公,数额较大的,以()论处。
TheBibleisthegreatworkofthereligiousliteratureandwasinprocessofformationforabouttwelvehundredyears.The
TheDragonBoatFestivalisoneofthethreemajorChinesetraditionalfestivals,alongwithSpringFestivalandtheMoonFestiv
最新回复
(
0
)