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 day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers fr
After a day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers fr
admin
2007-12-11
95
问题
After a 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 another. 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 quickly ( although your eye-lids 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
此题考查全文的理解。全文没讲成人平均一天要睡多少小时,因此选择D。
转载请注明原文地址:https://kaotiyun.com/show/QILC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Haveyou【B1】______askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【B2】______theirownlanguagea
Whichofthefollowingisthemainpsychologicalsymptomofsmokerswhoquit?______.Whichofthefollowingstatementsistrue
Technicalschoolspreparetheirstudentsfortheapplicationofpracticalskillstheylearninclass______theirwork.
Inanexperimentwithfifthandsixthgraders,thechildrenwereaskedtosolvesomewordpuzzlesthatvariedindifficulty.
"Igetbywithalittlehelpfrommyfriends"isapopularlyric(抒情诗)withage-oldwisdombehindit.【B1】______peopleneedpeop
Sunglassescanhelpyoureyesintwoimportantways.Theyimprovethenormallightfilteringabilitiesofyoureyesandtheypro
Higherproductivityisessentialtotherisingoflivingstandardsandtothedecliningpricesofgoodsandservices.Buthigher
Asfuelpricesrose,buscompaniesraisedtheirfares,and______.
AThoughthebirthrateisBreducingrapidly,buttheCworld’spopulationisstillDincreasing.
Inthetraditionalmarriage,themanworkedatajobtoearnmoney.Mostmenworked.Sincethemanearnedthemoney,hepaidthe
随机试题
在常压下苯的沸点为80.1℃,环己烷的沸点为80.73℃,欲使该两组分混合物得到分离,则宜采用()。
简述数据库系统的三级模式两级映像。
脊髓前角内的神经元主要为________,体积大小不一,大的称________,分布到骨骼肌的梭外肌,支配骨骼肌运动;小的称________,支配肌梭内的肌纤维,调节肌张力。后角内的神经元类型较复杂,主要接受后根________的中枢突传入的神经冲动。
有关延迟性心因性反应,不正确的是
预防新生儿破伤风的主要措施是
患者,女性,66岁,诊断为尿毒症,精神不振,下腹无胀满,24h尿量为80ml。护士判断该患者的排尿情况属于
下列情况的泡沫液需要送检的是()。
报上登出了国内20家大医院的名单,名单按它们在近3年中病人死亡率的高低排序。专家指出不能把名单排列的顺序作为评价这些医院的医疗水平的一个标准。以下各项如果是真的,都能作论据支持专家的结论,除了()。
Whyhasthemancontactedthewoman?
AtopracehorsewasbroughtdownatRoyalAscotwithashotfromahigh-techsoundgun,acourtwastoldyesterday.Thegunwas
最新回复
(
0
)