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
Why is it so difficult to fall asleep when you are overtired? There is no one answer that(1)______ to every individual. But many
Why is it so difficult to fall asleep when you are overtired? There is no one answer that(1)______ to every individual. But many
admin
2013-12-13
33
问题
Why is it so difficult to fall asleep when you are overtired? There is no one answer that(1)______ to every individual. But many people fail to note the(2)______ between fatigue — physical tiredness — and sleepiness, the inability to(3)______ awake. It is possible to feel tired(4)______ and still be unable to fall asleep, because while your body may be exhausted, you don’t feel(5)______. To fall asleep, you need adequate time to unwind, (6)______ you feel fatigued, not so easy to(7)______ "turn off."
According to Carl E. Hunt, director of the National Center on Sleep Disorders Research in Bethesda, Maryland, most people do not allow themselves(8)_____ deceleration.
Lack of sleep(9)______ matters even more. Experts say adults need at least 7 to 8 hours of sleep a night to (10)______ properly. When you get less sleep than(11)______ on consecutive nights, you begin to accrue "sleep debt".(12)______ sleep debt increases and functionality decreases, your body experiences a stress response and begins to release adrenaline. Now a vicious(13)______ has been created: You experience the feeling of being more and more tired,(14)______ your body is increasingly stimulated. Power sleeping for more hours on weekends is only a(15)______ solution. "There is no(16)______ for getting a good night’s sleep on a(17)______ basis," says Hunt.
Most of us,(18)______, don’t get the sleep we need. According to the 2002 National Sleep Foundation, Americans sleep a(n)(19)______ of 6.9 hours per night during the week, and 58 percent of adults experience (20)______ of insomnia a few nights a week or more.
(15)
选项
A、permanent
B、temporary
C、contemporary
D、arbitrary
答案
B
解析
词汇辨析题。only表明周末猛补几个小时的觉只是权宜之计。故B项temporary“暂时的,临时的,临时性”正确。permanent“永久的,持久的”;contemporary“当代的,同时代的”;arbitrary“任意的,武断的,独裁的”。
转载请注明原文地址:https://kaotiyun.com/show/rTFK777K
0
专业英语四级
相关试题推荐
Pleaseputyouremptycigarettepacketsandpaperbagsinthe______binsprovided.(1992年考试真题)
______,glassescancorrectmostsightdefectsinhealthyeyes.
SanFranciscoisusuallycoolinthesummer,butLosAngeles______.
TheU.S.doesn’thaveanycollegesoruniversitiesthatserveonlyblindstudentsbecause_______.
Fromthebeginningofhumanhistory,information’stravellingspeeddidNOTrelyon______.
EuropeanUnioncountrieshaveagreedto______.
Mostparentshopethattheirchildrenwill______theirexpectations.
Inthisexperiment,theyarewakenedseveraltimesduringthenight,andaskedtoreportwhatthey______.
Hedidnothingbut______lettershomeallthisafternoon.
Youknowyouhavetoread"betweenthelines"togetthemostoutofanything.Iwanttopersuadeyoutodosomethingequallyim
随机试题
中国共产党的宗旨(根本特征)是全心全意为人民服务.其决定因素是
投资组合管理的一般流程不包括()。
患者,男,50岁。1年来头晕、乏力,半月来加重伴心悸、食欲缺乏、恶心。现症见恶心呕吐,胸闷纳呆,口淡黏腻,口有尿味。查体:血压165/105mmHg。化验尿蛋白(++),尿沉渣RBC4—8个HP,血Hb80g/L,血肌酐610μmol/L,BUN2
外国债券的特点是( )。
我国商业银行不得在境内进行的业务有()。[2010年5月真题]
甲企业于2009年9月1日以2.5万元的价格购入一项摊销期限为5年的专利权。2010年9月1日,甲企业将其转让,取得转让收入3万元,交纳营业税1500元。则转让该项专利权应计入“营业外收入”的金额为()元。
海关对进口产品代征的增值税、消费税也是城建税和教育费附加的征收对象。()
设A是n阶非零实矩阵(n>2),并且AT=A*,证明A是正交矩阵.
下面哪个网络管理功能使得网络管理人员可以通过改变网络设置来改善网络性能________。
若有定义typedefint*T;Ta[10];则a的定义与下面哪个语句等价
最新回复
(
0
)