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
Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic of sleepiness in the natio
Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic of sleepiness in the natio
admin
2017-02-01
46
问题
Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic 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.
The beginning of our sleep deficit crisis can be【C1】______to the invention of the light bulb a century ago. From diary entries and other personal【C2】______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. By the 1950s and 1960s, that sleep schedule had been reduced【C3】______to between 7.5 and 8 hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don’t even【C4】______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, 8 or even more to feel ideally【C5】______
Perhaps the most merciless robber of sleep, researchers say, is the【C6】______of the day. Whenever pressures from work, family, friends and community mount, many people consider sleep the least【C7】______item on the agenda. "In our society, you’re considered dynamic if you say you only need 5.5 hours’ sleep. If you say you’ve got to get 8.5 hours, people think you lack【C8】______and ambition."
To assess the【C9】______of sleep deficit, researchers have put subjects through a set of psychological and performance tests. "We’ve found that if you’re sleep-deprived, performance【C10】______says Dr.
David. "Short-term memory is impaired, as are abilities to make decisions and to concentrate."
A)consequences B)complexity C)ingenious D)dramatically
E)suffers F)tracked G)realize H)expensive
I)slightly J)traced K)detaches L)vigorous
M)inspiration N)accounts O)drive
【C1】
选项
答案
J
解析
can be表明此处需填入名词、形容词或分词作表语,且能与介词to搭配。由句子主语The beginning of our sleep deficit crisis(初现睡眠不足)和宾语the invention of the light bulb a century ago(一世纪前发明了电灯),可知此处在探寻睡眠不足的原因。traced“追溯……的发展”可与to搭配,符合上下文语境。tracked表示“追踪,跟踪”时,是及物动词,故排除。
转载请注明原文地址:https://kaotiyun.com/show/QbU7777K
0
大学英语六级
相关试题推荐
A、Afinalexamtheyaregoingtotake.B、Atoughproblemthattheycannotsolve.C、Ajourneytheyareabouttotake.D、Something
OxfordUniversityoncefamouslyclaimedtohavebeenfoundedbyAlfredtheGreatinthe9thCentury.Butinfact,theUniversity
A、Quitsinging.B、Improvemanualwork.C、Practiceharder.D、Changeasong.A女士一直学不会一首英文歌,男士用了一个否定性的祈使句提出建议,劝女十圳在没有天分的事情上浪费精力,意思是
Secondhandsmokeisaccountablefor42,000deathsannuallytononsmokersintheUnitedStates,includingnearly900infants,acc
EatingOurYoung[A]AtFeltonvilleSchoolofArtsandSciences,amiddleschoolinapoorneighborhoodofPhiladelphia,thescho
Since2007,theAmericanPsychologicalAssociation(APA)hasconductedasurveyofdifferentaspectsofstressinAmerica.Thisye
A、Tomhaschangedhiscellphonenumber.B、Thewoman’scellphoneisalwaysunreachable.C、Tomwillteachhistoryclassatthat
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,therewilleventuallynotbeenoughresourcesleftto【B1】
Oneofthebiggestchallengesfacingemployersandeducatorstodayistherapidadvanceofglobalization.Themarketplaceisno
Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsareformed.It’snoteasytoexplainwhyonepersoni
随机试题
根据《企业国有资产法》规定,属于国家直接出资企业的有()。
换药用过的器械处理应
关于我国建设项目投资,下列说法中正确的是()。【2016年真题】
关于金属储罐(柜)充水试验相关规定的表述,正确的是()。
用人单位安排加班不支付加班费的,由劳动行政部门责令限期支付;逾期不支付的,由劳动行政部门责令用人单位按应付金额的()向劳动者加付赔偿金。
位于县城的某石油企业为增值税一般纳税人,2019年6月发生以下业务:(1)进口原油5000吨,支付买价2000万元、运抵我国境内输入地点起卸前的运输费用60万元,保险费无法确定。(2)开采原油9000吨,其中当月销售6000吨,取得不含税销售收入270
计算机的发展已进入了网络计算的新时代。不同计算机之间要能相互通信必须遵循相同的标准。世界上有许多从事标准化工作的组织。例如,开放系统互联基本参考模型最早是由(11)制定的;CCITT制定了大量与通信有关的标准,但目前已由(12)替代:负责发布Interne
Whatdoesthewritermainlywriteabout?Whendidshehavetimebutnothingtowriteabout?
Formuchoftheworld,thedeathofRichardNixonwastheendofacomplexpubliclife.Butresearcherswhostudybereavementwo
Whatdoesthemanmeanwhenhesaidthathedidn’twinaNobelPrize?
最新回复
(
0
)