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
2018-05-11
40
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
【C7】
选项
答案
H
解析
此处需填入名词、形容词或分词,修饰item(项目)。上文提到人们的睡眠时间越来越少,由此可知很多人不重视睡眠时间。空格前的least表示否定,故填入expensive“昂贵的;浪费的”。
转载请注明原文地址:https://kaotiyun.com/show/9OT7777K
0
大学英语六级
相关试题推荐
Thepooroldconsumer!We’dhavetopayagreatdealmoreifadvertisingdidn’tcreatemassmarketsforproducts.Itisprecisel
A、Theyhavecomparedanimalbehaviorswithhumans.B、Theyknewhowtoavoidearthquakes.C、Theytriedmanywaystodecreaseeart
AreTeenagersReallyCarelessAboutOnlinePrivacy?[A]Theyshare,like,everything.Howtheyfeelaboutasong,theirmathshom
PresidentBarackObama’spicktoheadtheEnvironmentalProtectionAgency(EPA),LisaJackson,hasspent20yearsasanenvironme
PresidentBarackObama’spicktoheadtheEnvironmentalProtectionAgency(EPA),LisaJackson,hasspent20yearsasanenvironme
A、Individualbehaviorandgroupbehavior.B、Politicalandeconomicstatus.C、Educationandincome.D、Environmentandmedicaltre
A、Hisbackground.B、Hisproperty.C、Hisbelief.D、Histalent.C本题问的是什么给HowardWhite带来了好运。短文中提到,White认为自己很走运,他认为他的人生信仰是为他带来好运的主要因
Untilrecently,themedicalcommunitybelievedthatmosthearinglosswascausedbyhearcellsintheeardegradingasweage.B
Untilrecently,themedicalcommunitybelievedthatmosthearinglosswascausedbyhearcellsintheeardegradingasweage.B
随机试题
SDH同步数字传输系统中STM-1代表的传输速率为()。
简述国际市场竞争的新特点。
心尖搏动的强弱及范围变化的生理条件是()
关于体位与疾病关系的叙述,错误的是
关于垂体瘤。下列哪项正确
A.医乃仁术B.疏五过论C.勤求古训,博采众方D.医家必须具备精湛的医术和高尚的医德E.“精究方术,爱人知人”中国传统医学普遍信奉的职业原则是()
受力情况相同的三种等截面梁,如图5-34所示。若用(σmax)1,(σmax)2,(σmax)3分别表示这三种梁内横截面上的最大正应力,则下列结论中正确的是()。
Severalresearchteamshavefoundthatnewbornsprefertheirmothers’voicesoverthoseofotherpeople.Nowateamofscientist
根据以上资料,能够推出的是:
Alargepartofeffectiveleadershipisdependentonsomethingcalled"style".Butstyleisdifficulttoteach,andwhatmakeso
最新回复
(
0
)