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
考研
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
2015-11-27
31
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【C1】______sleep than they ought to." says Dr. David.
【C2】______people who think they are sleeping enough would probably be【C3】______with more rest.
The beginning of our sleep deficit crisis can be【C4】______to the invention of the light bulb a century ago. From diary entries and other personal【C5】______from the 18th and 19th centuries, sleep scientists have reached the【C6】______that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were【C7】______on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced【C8】______, 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【C9】______they’re doing it," says Dr. David. "They think they’re okay because they can【C10】______on 6.5 hours, when they really need 7.5, 8 or even more to feel ideally【C11】______."
Perhaps the most merciless robber of sleep, researchers say, is the【C12】______of the day. Whenever pressures from work, family, friends and community【C13】______, many people consider sleep the least【C14】______item on the agenda. "In our society, you’re considered【C15】______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【C16】______and ambition."
To assess the【C17】______of sleep deficit, researchers have put subjects【C18】______a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. "We’ve found that if you’re sleep-deprived, performance【C19】______," says Dr. David. "Short-term memory is impaired,【C20】______are abilities to make decisions and to concentrate."
【C15】
选项
A、heroic
B、dynamic
C、forceful
D、healthy
答案
B
解析
根据生活常识可知,需要的睡眠时间少,就会被认为“精力充沛,干劲十足”。故B项dynamic“有活力的,精力充沛的”符合句意。呼应下文的lack...ambition。
转载请注明原文地址:https://jikaoti.com/ti/gYe7FFFM
0
考研英语一
相关试题推荐
AchillingfeatureofthesuicidevideoleftbyMohammadSidiqueKhan,theleaderofthebandthatkilledmorethan50peoplein
AchillingfeatureofthesuicidevideoleftbyMohammadSidiqueKhan,theleaderofthebandthatkilledmorethan50peoplein
Insurancecompaniesprovideaservicetothecommunitybyprotectingitagainstexpectedandunexpecteddisasters.Beforeanins
Millennialswere【B1】______tobethenextgoldenticketforretailers.A70millionconsumers【B2】______betweentheagesof18and
Millennialswere【B1】______tobethenextgoldenticketforretailers.A70millionconsumers【B2】______betweentheagesof18and
OneofthemanypleasuresofwatchingMadMen,atelevisiondramaabouttheadvertisingindustryintheearly1960s,isexamining
ThePewFoundationdiscoveredinarecent【C1】______thattensionsoverinequalityinwealthnow【C2】______tensionsoverraceandi
ThePewFoundationdiscoveredinarecent【C1】______thattensionsoverinequalityinwealthnow【C2】______tensionsoverraceandi
WhataccountsfortheastoundingpopularityofDr.PhilMcGraw?WhyhavesomanyTVviewersandbookbuyersembracedthistough
CompaniesarelobbyinghardtoremovetheEU’straceabilityandlabelingpoliciesforproductscontainingGMingredients.Br
随机试题
乙状结肠癌最早出现的临床表现是
患者,女,35岁。因双乳胀痛伴肿块数年而就诊,检查时发现双乳可扪及多个大小不等之结节,质韧,腋窝淋巴结无明显肿大,挤压乳头时有少量淡黄色液体溢出,细胞学检查无异常发现。最可能的诊断是()
能力
人力资源和社会保障部门的职责之一是组织拟订定点医疗机构、药店的医疗保险服务和生育保险服务的管理、结算办法及支付范围等工作。()
(2007)用毕托管测定风道中的空气流速,已知测得的水柱hy=3cm。空气的容重γ=11.8N/m3;φ值取1,风道中流速为()m/s。
国际海运的主要单证包括()。
激情是在出乎意料的紧张状态下所产生的情绪状态。()
大数据技术有效地解决了海量数据的收集、存储、计算、分析问题,在各行各业拥有广阔的应用前景。下列场景不属于大数据应用的是:
运动员在参加比赛前由于对比赛刺激因素及本人参赛条件做出了具有威胁性的评价,从而产生的心理反应称为( )
ModelsforArgumentsI.ThreemodelsforargumentsA.thefirstmodelforarguingiscalled【T1】______:【T1】______—argumentsar
最新回复
(
0
)