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
专升本
After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recove
After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recove
admin
2011-05-26
54
问题
After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.
There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.
Although your mind slows down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.
If you have trouble falling asleep, some people recommend breathing very slowly and very deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep!
The average number of hours of sleep that an adult needs is ______.
选项
A、approximately six hours
B、around ten hours
C、about eight hours
D、not stated here
答案
D
解析
选项A、B、C都不对,文中未提及。
转载请注明原文地址:https://kaotiyun.com/show/zYqC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Somecountriesstillhavedeathpenalty(死刑),butitnolonger【B1】inBritain.Afteraparticularly【B2】murder,Britishpeople
______theproblemsarenumerous,wemuststilltrytosolvethem.
Eachnationhasitsownoddcharacterwhichdistinguishesitfromothers.Butthepeopleoftheworldhavemorepointsinwhich
Duringthemeal,you’dbetterbecarefulnottoleaveaspooninasoupbowlorcoffeecuporanyotherdish.Thecoffeespoono
AccordingtotheAmericanfederalgovernment,residentsofHawaiihavethelongestlife______:77.2years.
Ifitwereonlynecessarytodecidewhethertoteachelementarysciencetoeveryoneonamassbasisortofindthegiftedfewan
Afterthemineaccident,thegovernmentsentagroupofexpertsto______thematter.
Itisestimatedthatsomesevenhundredmillionpeopleabouthalftheworld’spopulationareunabletoreadandwrite,andther
Thenumberofthenewlyadmittedstudents______over300,butanumberofthem______notarrivedyet.
Itwasobviousthattheaccidenthappened______.
随机试题
A.贫血伴球形红细胞增多B.贫血伴靶形红细胞增多C.贫血伴红细胞碎片增多D.贫血伴红细胞CD55、CD59降低E.贫血伴血肌酐增高地中海性贫血
流行病学的研究对象是()
下列指标中,属于控制性详细规划中规定性指标的有()。[2006年考题]
计算有侧移多层框架时,柱的计算长度系数取值()。
在工程施工中,除了设备安装必须配合土建结构施工外,安装工程实际工期为()个月。
技术分析流派对股票价格波动原因的解释是()。
方某工作已满15年,2009年上半年在甲公司已休带薪年休假(以下简称年休假)5天;下半年调到乙公司工作,提出补休年休假的申请。乙公司对方某补休年休假申请符合法率规定的答复是()
国际货币基金组织第八条款规定的货币可兑换类型主要是指()。
系统规划与定义包括以下具体内容______。①任务陈述②确定任务目标③确定系统范围和边界④确定用户视图A)①②④B)①②③C)②③④D)①②③④
Whatisthesourceofthisextremeself-confidencefoundinalmostalloptimists(乐观主义者),thisbeliefthattheycanaccomplishgr
最新回复
(
0
)