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
2016-04-30
24
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
【C6】
选项
答案
B
解析
the...of结构表明此处需填入名词。由下文“来自工作、家庭、朋友及社会的压力”,可知填入的名词表消极含义,故complexity“错综复杂”符合句意,表示睡眠被无情夺走的原因是每天各种错综复杂的事务。
转载请注明原文地址:https://jikaoti.com/ti/NdyFFFFM
0
大学英语六级
相关试题推荐
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthecampus.Thenumerousadvertisingpostersandthego
Somepeoplebelievethatyouhavetobeaspecialkindofpersontosellaproduct.Butalthoughitisclearthatasuccessfuls
A、Shelacksconfidenceinherself.B、Sheisnotinterestedincomputerprogramming.C、Shehasneversignedupforanycompetitio
Peopletendtounderestimatetheirlifeexpectancy,andit’snotsurprising.It’sthelook-aroundproblemagain:You【C1】______fr
Theestimatesofthenumbersofhome-schooledchildrenvarywidely.TheU.S.DepartmentofEducationestimatesthereare250,00
A、Enteringalargecompanywithoutapplication.B、Programminghumanfeelingsintomachines.C、Decidingone’sbestpartnerthroug
A、Thedirectorprobablyisn’tabletomakeanexception.B、Thedirectorprobablywon’tseeher.C、Thedirectorusuallyisn’tver
It’smyhonortobeheretonight.OurorganizationiscalledtheNoiseAbatementSocietythatmonitorsandtriestodealwit
A、Loseweight.B、Quitsmoking.C、Weighhimselffrequently.D、Haveatalkwiththedoctor.A从女士的反问:“他还建议你减肥吗?”可以得出女士认为他应该减肥。故选A。B
A、Itisadvertisingelectronicproducts.B、ItisplanningtotourEastAsia.C、ItissponsoringaTVprogramme.D、Itisgivingp
随机试题
已知函数y=y(x)在任意点x处的增量,且当Δx→0时,α是Δx的高阶无穷小,y(0)=π,则y(1)=().
关于脂肪变性,下列描述正确的是
A.肿瘤压迫膈神经B.肿瘤压迫上腔静脉C.肿瘤压迫臂丛神D.肿瘤压迫颈交感神经E.肿瘤压迫喉返神经肺癌病人发生声音嘶哑是由于()
毛果芸香碱的作用机制是
王某以个人名义向张某独资设立的飞跃百货有限公司借款10万元,借期1年。不久,王某与李某登记结婚,将上述借款全部用于婚房的装修。婚后半年,王某与李某协议离婚,未对债务的偿还作出约定。下列哪一选项是正确的?
某风沙治理工程,原来是一片典型的城乡结合部地区,需要进行大规模的绿化隔离建设,原先的居民迁入了楼房,实现3.08km2的绿化,绿化隔离地区总面积为240km2。道路、河流两侧将建设各200m宽的绿化带,其中内侧的20~50m将成为永久绿化带。在其外侧则发展
抓斗式挖泥船开挖中等密实砂时宜选用()。
下列加点字的注音全都正确的一组是:
U.S.jobgrowthwassurprisinglystrongin2018,butdon’texpectthattohappenagainthisyear,witheconomicheadwindsintens
A、Theytendtoforget.B、Itiseasytostealfromthem.C、Theirhusbands’relativesalwaysaskhertodividethethingswiththe
最新回复
(
0
)