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【C1】______ to every individual. But man
Why is it so difficult to fall asleep when you are overtired? There is no one answer that【C1】______ to every individual. But man
admin
2015-03-26
41
问题
Why is it so difficult to fall asleep when you are overtired? There is no one answer that【C1】______ to every individual. But many people fail to note the【C2】______ between fatigue — physical tiredness — and sleepiness, the inability to【C3】______ awake. It is possible to feel tired【C4】______ and still be unable to fall asleep, because while your body may be exhausted, you don’t feel【C5】______. To fall asleep, you need adequate time to unwind,【C6】______ you feel fatigued, not so easy to【C7】______ "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【C8】_____ deceleration.
Lack of sleep【C9】______ matters even more. Experts say adults need at least 7 to 8 hours of sleep a night to【C10】______ properly. When you get less sleep than【C11】______ on consecutive nights, you begin to accrue "sleep debt".【C12】______ sleep debt increases and functionality decreases, your body experiences a stress response and begins to release adrenaline. Now a vicious【C13】______ has been created: You experience the feeling of being more and more tired,【C14】______ your body is increasingly stimulated. Power sleeping for more hours on weekends is only a【C15】______ solution. "There is no【C16】______ for getting a good night’s sleep on a【C17】______ basis," says Hunt.
Most of us,【C18】______, don’t get the sleep we need. According to the 2002 National Sleep Foundation, Americans sleep a(n)【C19】______ of 6.9 hours per night during the week, and 58 percent of adults experience【C20】______ of insomnia a few nights a week or more.
【C19】
选项
A、normal
B、usual
C、general
D、average
答案
D
解析
词义辨析题。average在表示“普通的,一般的,平均的”时,强调一般水平或普通水准,符合句意。normal表示“正常的”,强调的是达到正常水平,与abnormal“不正常”相对;usual表示“平常的,通常的、惯常的”,强调习惯性的、常见的、不稀奇的;general表示“普遍的、普通的”时,强调的是具有大多数的特征的。
转载请注明原文地址:https://jikaoti.com/ti/hPSMFFFM
0
专业英语四级
相关试题推荐
Weworktomakemoney,butit’sa______thatpeoplewhoworkhardandlongoftendonotmakethemostmoney.
AmericanHistoryisoneoftheelectivestudiesintheuniversity______.
Itisimperativethatyou______youresignationbeforeFriday.
Thecomputercanbeprogrammedto______awholevarietyoftasks.
TherecentannouncementthatGPs(全科医生)maysendpatientswithdepressionawaywiththesuggestionthatthey(1)_____a"mood-enhan
Asamanagementconsultant,Ihavethe______offlyingmorethanmosttravellers.
Superstition迷信OnepersoninfourinBritainis,apparently,superstitious,/andthey’lldoeverythingfromhanginghorses
Onthe20th【D1】______ofthefirstofficialreportonAIDStheheadoftheUnitedNationsAIDSprogrammewarnsthedeadlydiseas
Theexaminationswhetherconsideredgoodorbad
Vietnammilitarycosts______economicweaknessesintheUnitedStates,whichcleverlyexporteditsinflationabroad.
随机试题
慢性肾小球肾炎肾功能不全患者,出现以下哪项改变即可诊断为尿毒症
久病体虚气血不足者,可在补益气血方中加入少量
关于帕金森病的药物治疗原则,以下哪项表述是正确的
患者,女性,27岁。产后30天出现右侧乳房胀痛,全身畏寒、发热。体检:右侧乳房皮肤红肿明显,局部可扪及一压痛性硬块,同侧腋窝淋巴结肿大。首先考虑的疾病是
关于火灾报警系统的设置,下列说法错误的是()。
某隔板絮凝池设计流量为50000m3/d,絮凝池总水头损失为0.29m。水厂自用水量按照5%计,水的密度ρ水=1.00g/cm3,水的动力黏滞系数μ=1.0×10-3Pa.s;测得的絮凝池总的速度梯度G为20s-1,则絮凝池的有效容积为()m3。
皮影戏的传统剧目有()。
简述《中国土地法人纲》的主要内容。
DriedFoodsCenturiesago,mandiscoveredthatremovingmoisture(51)foodhelpedtopreserveit,andthattheeasiestwaytod
Asforme,theproblemwhichisbotheringyoucan______(不太难解决).
最新回复
(
0
)