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
What’s the topic of the passage?
What’s the topic of the passage?
admin
2009-06-24
72
问题
What’s the topic of the passage?
No one knows exactly why we sleep, But scientists have learned a lot about how we sleep. From sleep experiments, scientists have learned that there are four different stages of sleep.
When you first fall asleep, your heart starts to beat more slowly and your breathing slows down. If something wakes you, you might not think that you had been asleep. Some people eau this kind of sleep dozing. Scientists call it stage one sleep.
Next, if you are not awakened, you drift into a deeper sleep. Your pulse and breathing become even slower than they were during stage one sleep. But you can still be awakened quite easily. If you take a cat nap, you probably will not get any further than this stage of sleep, which is called stage two.
If you sleep longer than about twenty minutes, you go into the third stage of sleep. Your body is very relaxed. It would take a loud noise to wake you up.
You have probably heard of people who walk in their sleep. No one knows what makes people sleepwalk. But a person can sleepwalk only during stage four. This is the deepest kind of sleep. If someone wakes you up during stage four, you might feel very confused. It might take you a few minutes to get used to being awake.
选项
A、People can’t sleepwalk.
B、Your body becomes very relaxed.
C、You can still be awakened without difficulty.
D、If you are awakened, you might feel very perplexed.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/4CHd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
Theprimarypurposeofthepassageisto______.Whichofthefollowingbestdescribestheattitudeoftheauthortowardthear
Hurricanes(龙卷风)Didyouknowthatbefore1950,hurricaneshadnonames?Theyweresimplygivennumbers.Thefirstnamesweresi
TVGamesShowsOneofthemostfascinatingthingsabouttelevisionisthesizeoftheaudience.Anovelcanbeonthebests
OntheTrialoftheHoneyBadgerOnarecentfieldtriptotheKalahariDesert,ateamofresearcherslearnalotmoreabout
Hurricanes(龙卷风)Didyouknowthatbefore1950,hurricaneshadnonames?Theyweresimplygivennumbers.Thefirstnameswere
IrarelyweararaincoatbecauseIspendmostofmytimeinacar.
Becauseofthepopularityoftheregion,itisadvisabletobookhotelsinadvance.
TeachingIs"OneoftheLeastPopularJobsintheUK"1.TheUKgovernmenthasjustpublishedareportonthefutureofsecon
FairyTalesforAlltheWorldThisyear,theworldismarkingthe200thanniversaryofDanishauthorHansChristianAndersenwit
Icannolongertoleratehisactions.
随机试题
人类最早出现的一种诉讼形式为
肝硬化最常见的并发症是
以下疾病是由珠蛋白合成障碍所致的是
房屋他项权利登记应由()申请。
下列关于会计电算化的基本要求,说法正确的有()。
保险营销员应当在所属保险公司授权范围内从事保险营销活动,自觉接受( )的管理,履行委托协议约定的义务。
现代企业制度的基本特征不包括()。
第一段“其用心”所指的,符合文意的一项是:下面列举的历史变革,不属于“原地不动地画圆圈”的一项是:
甲因停车收费与保安乙发生冲突,用刀将乙刺死,甲在检察机关准备提起公诉期间因病死亡,检察机关遂做出撤销案件的决定。下列表述正确的是()。
在最坏情况下,堆排序需要比较的次数为【】。
最新回复
(
0
)