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
29
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/nbU7777K
0
大学英语六级
相关试题推荐
TheIndustrialRevolution[A]TheIndustrialRevolutionisthenamegiventothemassivesocial,economic,andtechnologicalchan
KyleMaguirewantedtoattendtheUniversityofNebraskaassoonashegraduatedfromhighschoolyearsago.AnaspiringWebdev
Afterdecadesofdecline,theshareofmotherswhostayhomewiththeirchildrenhas【C1】______risenoverthelastseveralyears,
A、Waristheonlywaytosolveinternationaldisputes.B、Warwillbelessdangerousbecauseoftheimprovementofweapons.C、It
I’vealwaysbeenanoptimistandIsupposethatisrootedinmybeliefthatthepowerofcreativityandintelligencecanmaketh
Allourdreamshavesomethingtodowithourfeelings,fears,longings,wishes,needsandmemories.Ifapersonishungry,orti
A、Registeringforcourses.B、Buyinganewcomputer.C、Gettingdirections.D、Studyingsociology.A根据“whichcoursestotake选什么课程”,
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,therewilleventuallynotbeenoughresourcesleftto【B1】
FindYourHeart’sDesireandRealizeYourPotential[A]Oneofthemostwonderfulandexcitingfactsaboutyourlifeisthat
随机试题
号为“人境庐主人”的诗人是()
人体寄生虫中最小的蠕虫卵是
男性,60岁,肠梗阻3天入院。查体:血压70/40mmHg,血钠125mmol/L,血钾3.2mmol/L,血气分析示pH7.31。若需要补充碱剂,如果补充碱剂过快,患者不会发生下列哪种情况
心房颤动发生后可使心排血量下降
患者男,30岁。前列腺增生,尿潴留,来院就诊,遵医嘱行留置导尿术,正确的操作方法是()。
在设计柱下条形基础的基础梁最小宽度时,下列哪项为正确的?()[2011年真题]
1982年中共________第一次把教育列为经济发展的战略重点之一。
(中央财经大学2011年初试真题)稽查人员于2010年5月20日对B市A公司2009年纳税情况进行检查,经过审查,获得如下资料:第一,企业有关情况:A公司是增值税一般纳税人,主要生产不锈钢产品。该公司执行新会计制度与现行税收政策,成本利润率适用
Thehistoryofthecomputerinthetwentiethcenturyisoneofdramaticadaptationandexpansion.Thecomputerhadmodestbeginn
"Cool"isawordwithmanymeanings.Itstraditionalmeaningisusedto【36】atemperaturethatisfairlycold.Astheworldhas【3
最新回复
(
0
)