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
When you first drift off into slumber, your eyes will roll about a bit, your temperature will drop slightly, your muscles will r
When you first drift off into slumber, your eyes will roll about a bit, your temperature will drop slightly, your muscles will r
admin
2011-01-11
26
问题
When you first drift off into slumber, your eyes will roll about a bit, your temperature will drop slightly, your muscles will relax, and your breathing will become quite regular. Your brain waves slow down a bit, with the alpha rhythm predominating for the first few minutes. This is the first stage of sleep. For the next 30 minutes or so, you will drift down through Stage 2 and Stage 3. The lower your stage of sleep, the slower your brain waves will be. About 40-60 minutes after you lose consciousness, you will reach the last stage. Your brain waves will show the delta rhythm. You may think that you stay at this deep stage all the rest of the night, but that turns out not to be the case. About 80 minutes after you fall into slumber, your activity cycle will increase slightly. The delta rhythm will disappear, to be replaced by the activity pattern of brain waves. Your eyes will begin to dart around under your closed eyelids. This period of Rapid Eye Movements lasts for 8-15 minutes and is called REM sleep.
During both light and deep sleep, the muscles in your body are relaxed but capable of movement. As you slip into REM sleep, a very odd thing occurs -- most of the voluntary muscles in your body become paralyzed. Although your brain shows very rapid bursts of neural activity during REM sleep, your body is incapable of moving. REM sleep is accompanied by extensive muscular inhibition.
The first paragraph of this passage tells us about______.
选项
A、the rhythms of brain waves
B、the daily activities of sleep
C、the stages of sleep in cycles
D、the daily activities in cycles
答案
C
解析
主旨题型。 第一段主要介绍了睡眠的四个阶段。
转载请注明原文地址:https://kaotiyun.com/show/emgO777K
本试题收录于:
CATTI二级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Amanorwomanmakesdirectcontactwithsocietyintwoways:asamemberofsomefamilial,professionalorreligiousgroup,or
Theadvertisingindustryintoday’sworlddoeshaveitsshareofresponsibilitiesinleadingpeopletomisconceptions.
Before,wheneverwehadwealth,westarteddiscussingpoverty.Whynotnow?Whyisthecurrentpoliticsofwealthandpovertyse
Accordingtotheregulations,anyonecaughtlitteringinthepublicplaces______toalargefineofHK$1,500.
Imaginebeingaskedtospend12orsoyearsofyourlifeinasocietywhichconsistedonlyofmembersofyourownsex.Howwould
Theword"brick"didnotappearintheEnglishlanguagebeforethe15thcentury.Bricks【C1】______havebeenknowninBritainbe
Whilemanytrustproductstakemoneyfromasinglesource,suchasabank,andgivetoasingleborrower,some______multipleinv
Whatdidthespeakerprobablytalkaboutpreviously?
PersistentandEmergingChallengesVocabularyandExpressionshydrocarbonsegregationimplementationimpedeacceler
AccordingtoWMO,whatisthemaincauseoftherisingtemperatures?
随机试题
精加工时,切削量小,产生的热量少,应采用以冷却为主的切削液。
邓小平指出:“解决民族问题,中国采取的不是民族共和联邦的制度,而是民族区域自治的制度。我们认为这个制度比较好,适合中国的情况。”我们实行民族区域自治的历史依据是()
A、 B、 C、 D、 A
男性,40岁。20年前患过肺结核外,平素健康,近3个月来有刺激性咳嗽,痰中偶有血丝,有时发热。胸部X线示:右肺上叶前段有2cm×2.5cm的块状阴影,边缘不整呈分叶状,痰查脱落细胞3次均阴性,诊断首先考虑
神阙穴旁开2寸处的腧穴是()
建设项目评价中的总投资包括:
企业应当以()为基础,根据实际发生的交易和事项,按照《企业会计准则——基本准则》和其他各项会计准则的规定进行确认和计量,在此基础上编制财务报表。
金属历来都是通过采矿、冶金制取的,可是80年代初期,科学家发现在聚乙炔中加入强氧化剂或还原剂后,它的导电性能大大提高。因为这种塑料具有金属的一般特性,所以人们称它为“人造金属”。近年来,它的发展极为神速,人们又先后研制成功了聚苯乙炔、聚苯硫醚和聚双炔类等。
一件公文同其他公文相区别的最强的专指性标识是()。
在神经元的各组成部分中,用来接收其他神经元信息的是()。(华南师范大学2015研)
最新回复
(
0
)