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
Sleep Sleep is part of a person’s daily activity cycle. There are several different stages of sleep, and they too occur in c
Sleep Sleep is part of a person’s daily activity cycle. There are several different stages of sleep, and they too occur in c
admin
2015-07-04
36
问题
Sleep
Sleep is part of a person’s daily activity cycle. There are several different stages of sleep, and they too occur in cycles.【B1】______When you first drift off into slumber, your eyes will roll about a bit, your temperature will drop slighdy, your muscles will relax, and your breathing will slow and become quite regular. Your brain waves slow down a bit too, with the alpha rhythm of rather fast waves predominating for the first few minutes.【B2】______For the next half hour or so, as you relax more and more, you will drift down through stage 2 and stage 3 sleep. 【B3】______Then about 40 to 60 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain waves will show the large slow waves that are known as the delta rhythm. This is stage 4 sleep. You do not remain at this deep fourth stage all night long, but instead about 80 minutes after you fall into slumber, your brain activity level will increase again slightly. 【B4】______Your eyes will begin to dart around under your closed eyelids as if you were looking at something occurring in front of you.【B5】______It is during REM sleep period, your body will soon relax again, your breathing will grow slow and regular once more, and you will slip gently back from stage 1 to stage 4 sleep-only to rise once again to the surface of near consciousness some 80 minutes later.
A The delta rhythm will disappear, to be replaced by the activity pattern of brain waves.
B If you are an average sleeper, your sleep cycle is as follows.
C In stage 4 sleep people tend to dream.
D The lower your stage of sleep, the slower your brain waves will be.
E This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep.
F This is called stage 1 sleep.
【B5】
选项
答案
E
解析
这种迅速的眼球运动持续约8~15分钟,这一阶段睡眠被称之为快速眼动(REM)睡眠。接下来一句说:在REM睡眠阶段,你的肢体会很快再度放松,呼吸也再次放慢并变得有节奏,你会轻松地从第一阶段滑入第四阶段睡眠——直到大约80分钟后重新接近清醒状态。这里的REM和前一句相衔接。
转载请注明原文地址:https://kaotiyun.com/show/HzLd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
EatingPotatoesGivesYourImmuneSystemaBoostEatingpotatoesisnotonlygoodforbowelhealth,butalsoforthewholei
CollegeNightOwlsHaveLowerGradesCollegestudentswhoaremorningpeopletendtogetbettergradesthanthosewhoareni
AforyoungerandolderpeopleBtotheproperfunctionofyourmemoryCiscalledlong-termmemoryDthecapacitytostorewhat
StomachUlcerStomachulcersarethecauseofseverepainformanypeople.Doctorshavebeenabletohelplessenthepainof
ScienceandTechnologyThereisadifferencebetweenscienceandtechnology.【B1】______Sciencehastodowithdiscoveringth
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
CulturalDifferencesPeoplefromdifferentculturessometimesdothingsthatmakeeachotheruncomfortable,sometimeswithou
SeekHealthandWellness1Whetheryouarebusystudyingorstartingclerkship,itisabsolutelyessentialtomaintainhealthand
Accordingtothepassage,theriskofachilddevelopinginsulin-dependentdiabetesislinkedtoallthefollowingfactorsEXCEP
Readingthejobad,hewonderedwhetherhewaseliqibletoapplyforit.
随机试题
为下列不同产品选择最佳的灭菌方法A、干热灭菌B、紫外线灭菌C、滤过灭菌D、热压灭菌E、流通蒸汽灭菌氯化钠注射液
下列各项中,绝对不能作为合同当事人的是()。
确定社会折现率要考虑的因素有()。
在登记账簿时,红色墨水不能用于()。
你负责单位的信访接待工作,上班第一周就被群众投诉。领导为此批评了你,你会怎么办?
有一水池,装有甲乙两个注水管,下面装有丙管放水,池空时,单开甲管5分钟可注满,单开乙管10分钟可注满;水池装满水后,单开丙管15分钟可将水放完。如果在池空时,将甲、乙、丙三管齐开,2分钟后关闭乙管,还要多少分钟可注满水池?()
阅读材料并结合背景知识回答问题:材料初税亩。初者何?始也。税亩者何?履亩而税也。初税亩何以书?讥。何讥尔?讥始履亩而税也。何讥乎始履亩而税?古者什一而藉。古者曷为什一而藉?什一者,天下之中正也。多乎什一,大桀小桀。寡乎什一,大貉小貉。什一者,天下之中正也
已知函数f(x,y)在点(0,0)的某个邻域内连续,且,则()
删除考生文件夹下ROOM文件夹中的文件GED.WRI。
A、That’swonderful.B、Whatapity!C、Withpleasure.D、You’rewelcome.CCouldyoupleasepassmethatbook?
最新回复
(
0
)