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 a person falls asleep, all activity decreases and the muscles relax. The heartbeat and breathing【C1】______slow down. The pe
When a person falls asleep, all activity decreases and the muscles relax. The heartbeat and breathing【C1】______slow down. The pe
admin
2013-06-17
31
问题
When a person falls asleep, all activity decreases and the muscles relax. The heartbeat and breathing【C1】______slow down. The person slowly becomes less aware【C2】______what may be happening all around. A sleeping person changes the【C3】______of the entire body at least a dozen times during about eight hours of sleep. The head, arms, or legs are moved more often.
Scientists study sleep【C4】______an instrument. Whether a person is【C5】______or asleep, the brain gives【C6】______electrical waves. The instrument measures and records these waves. The brain of an awake, 【C7】______person gives off about 10 small waves a second. As a person falls deeply【C8】______sleep, the brain sends out slower but 【C9】______waves. The slowest, largest waves【C10】______during the first two or three hours of a period of sleep. During slow-wave sleep, mental activity【C11】______down but does not stop. Persons awakened【C12】______slow-wave sleep can often【C13】______unclear thoughts that they had while asleep. Periods of small, fast waves, 【C14】______to those of an awake person, occur at【C15】______during sleep. During these periods of fast brain wave activity, the sleeper’s eyes move rapidly as though they were watching the【C16】______of a dream. A sleeper who is awakened during such a period probably will recall dreaming and remember【C17】______of the dream. Sleep during these periods is called dreaming sleep or REM (Rapid Eye Movement) sleep. An eight-hour period of sleep includes from three to five periods of dreaming sleep. The dreaming sleep periods【C18】______from 5 to 30 minutes【C19】______and occur every 90 to 100 minutes. The【C20】______dream periods last longer than the earlier ones.
【C7】
选项
A、excited
B、exhausted
C、relaxed
D、drained
答案
C
解析
语义衔接题。分析句子结构可知,所填词和awake并列,修饰person,故答案为[C]relaxed“放松的”。此外,所填词是首段首句中的relax的同根词复现,对选择答案起到了一定的提示作用。其他选项均与此处语义不符。
转载请注明原文地址:https://kaotiyun.com/show/k4M7777K
0
大学英语四级
相关试题推荐
Teenageboys,regardlessofrace,aremorelikelytodiefromgunshotwoundsthanfromallnaturalcausescombined.Bythet
Theycallthemthenewbreadearners.Theyarewomen,andtheyaresettotakeover.Womenarebeginningtorise【1】totheto
A、Thecatalogswerehelpfulwiththestudyofstudents.B、Theyusedthecatalogstoplaceorders.C、Theirtextbookswerenotas
WheneveranyoneannoyedLightning,hewouldbecomesoangryhewouldburnbuildingsandknockdowntrees.Fromthissentence,we
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesandtoblamethemformostofthemisunderstandingsbetw
A、Howtosucceedincareer.B、Howtoresolvepersonalproblems.C、Howtodealwithbusiness.D、Howtomakemoney.BWhattypeof
A、Wearcomfortable,casualclothes.B、Eatmuchoffoodsheprepared.C、Bringyourfavoritefoodtoher.D、Invitehertoyourhou
A、Bybuses.B、Byprivatecars.C、Byrail.D、Byair.C根据文中提到的“InChinatodaythemostcommonwayoftravelingisstillbyrail”,可
A、112B、117C、132D、123D此题考查听特定信息的能力。在这里指数字的辨音。解题的关键在于快速反应数字以及它的相关信息,排除干扰。
Oneday,drought(干旱)maybeathingofthepastatleastincoastalcities.Vastareasofdesertthroughouttheworldmayforthe
随机试题
学校对学生进行德育的基本方法是()。
你认为最大可能的诊断是下一步应该怎么办
未经批准擅自建立相对独立的平面坐标系统,应给予的行政处罚是()。
从纵向来看,我国规划体系分成总体规划、专项规划、企业规划等层次,其中,形成各类规划的重要基础的是()
按照编制程序和用途,建设工程定额包括五种类型,它们之间关系的正确表述有()。
关于切点证券组合了(如图1所示)的特征,下列说法正确的有( )。
根据企业所得税法律制度的规定,下列关于收入确认的表述中,不正确的是()。
我国城市社区由街居制转变为社区制的标志是()的发布。
计算行列式
Moreurbancitizensnowprefertoliveincountryside. Writeanarticletoclarifyyourownpointsofviewtowardsthisissu
最新回复
(
0
)