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
32
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.
【C9】
选项
A、details
B、complicates
C、specifies
D、intensifies
答案
B
解析
语义线索题。本题所在句为该段的中心句。浏览下文可知,缺乏睡眠使我们负“睡眠债”,还会导致一系列恶果,故B项complicates“(使)变复杂”正确。detail“详述,细说”;specify“指定,详述”;intensify“增强,加强”。
转载请注明原文地址:https://kaotiyun.com/show/vwHK777K
0
专业英语四级
相关试题推荐
Thelawonclrinkinganddrivingis______stated.
Who______wasgoingtovisitourcompanythisafternoon?
Thepoliticalchangesthatmadeglobalisationpossibletookplaceinaremarkablyshortperiodoftime—from1978to1991tobe_
Thecomputercanbeprogrammedto______awholevarietyoftasks.
TherecentannouncementthatGPs(全科医生)maysendpatientswithdepressionawaywiththesuggestionthatthey(1)_____a"mood-enhan
TherecentannouncementthatGPs(全科医生)maysendpatientswithdepressionawaywiththesuggestionthatthey(1)_____a"mood-enhan
Manypeoplestumbleacrosstheircallinginlifeatunexpectedmoments,butforCharlotteReed,aprofessionalpetsitterinMan
Accordingtotheman,thecomputerhadproblemsEXCEPTthat
Sherememberedseveraloccasionsinthepast______shehadexperiencedasimilarfeeling.
"Soonenough,nobodywillrememberlifebeforetheInternet.Whatdoesthisunavoidablefactmean?"Itiswiththissoberingque
随机试题
It’sthe________timeMarkandBillmeeteachother.
急性菌痢最突出的病变是中毒性菌痢最突出的病变是
下列实验中哪项不是细菌的生化反应?()
对政府来说,特许经营项目融资的缺点有()
下列有关会计职业道德“廉洁自律”的表述中,正确的有()。
地方人民政府、政府统计机构或者有关部门、单位的负责人有自行修改统计资料、编造虚假统计数据的行为,由任免机关或者监察机关依法给予处分,并由()予以通报。
社会工作必须有一定的价值观作指导,其核心是奉献精神。()
这一系列因素最终可能引发全局性的金融风险。更重大的代价是在未来数十年中,国家的信用等级在国际社会中将大大下降,这方面有墨西哥的_____________为证。填入画横线部分最恰当的一项是:
下列有关过程的叙述中错误的是()。
设以下变量均为int类型,则值不等于7的表达式是
最新回复
(
0
)