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
2019-06-23
97
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
【C9】
选项
答案
A
解析
the…of结构表明此处需填入名词。由后文We’ve found that…可知,研究专家做试验的目的是为了知道睡眠不足的后果,consequences指不太好的后果,故为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/sAX7777K
0
大学英语六级
相关试题推荐
A、Satisfied.B、Enthusiastic.C、Disappointed.D、Indifferent.C女士谈到,男士一定见证了公司很多的变化,男士回应说绝大部分的变化都是使事情变得更加糟糕。故选C。
Depressionisoneofthedarkdemons(恶魔)ofadolescence.Upto1in12Americanteenagersisaffected,accordingtotheNationa
A、Ithasbeenfinished.B、Itwillbepublishedthismonth.C、Itcontainsmanydetectivestories.D、Itranksthetopofbestselle
A、Studyintensivelybeforeatestforevenashortperiod.B、Don’tworryaboutyourEnglishlevelifyouworkhard.C、UseTOEFL
A、Cookingsimplefood.B、Usingfreshingredients.C、Makingfoodcolorful.D、Usingnewequipment.B
A、Itwillbecomelesspopularthanithasbeen.B、Itwillbereformedinthenearfuture.C、Itwillbemorepopularthanbefore.
A、Sheoncewroteaboutit.B、Shethinksthemanshouldwriteaboutit.C、Shehasbeenstudyingitrecently.D、Sheparticularlyl
PayAttentiontoOurOwnBehaviorForthispart,youareallowed30minutestowriteashortessayentitledPayAttentionto
Astherecentcourgette(密生西葫芦)crisisandshortagesoflettuce,eggplantsandbroccoli(绿花椰菜)haveshown,Spain’sfameastheveget
Onenightintheearly1600sGalileogottiredofusingthenewfangled(新花样的)telescopetospotshipsandpointedittotheheav
随机试题
强心苷引起的传导阻滞可选用的治疗药物是
手背各指缝中的赤白肉际,左右共八穴足背各趾缝端凹陷中,左右共八穴
白前的功效是
A市药品监督管理部门在日常监督检查中,发现B药店存在违法经营行为,对其作出警告,限期整改,并处罚金3万元。B药店法人对此处罚不服,决定提出行政复议。下列不属于行政诉讼受案范围的是()
某油田开发建设工程中一新开发的区块位于西北干旱地区,区域面积30km2。新开发区块与已有区块相邻,依托已有联合站。开发建设工程设计年产油3.0×10tt,原油通过新建的70km管线输送至联合站,经脱水除气处理后外输,脱水除气过程产生的天然气不含硫,用作燃气
甲公司为工业企业,对投资性房地产采用成本模式进行后续计量。2×21年1月甲公司以出让的方式取得一宗土地使用权,支付价款为4000万元,预计使用年限为50年,准备建造写字楼,董事会作出了正式书面决议,明确表明建成后将其用于经营出租且持有意图短期内不再发生变化
以下不属于公司法人人格否认制度的适用情形为()。
某地大面积停水,影响居民正常用水,而此时有人传谣,说停水是因为化工厂有害物质泄漏,你怎么处理?
甲公司欠缴税款20万元,税务局工作人员小刘和小孙来甲公司查账时,甲公司总经理王某和其朋友李某组织一伙社会人员挡在公司门口不让税务人员进门,并将税务人员小刘打成重伤。王某的行为构成()
设u=u(x,y),v=v(x,y)有连续的一阶偏导数且满足条件:F(u,v)=0,其中F有连续的偏导数且
最新回复
(
0
)