首页
登录
职称英语
When a person falls asleep, all activity decreases and the muscles relax. Th
When a person falls asleep, all activity decreases and the muscles relax. Th
游客
2023-07-11
39
管理
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. [br] 【C14】
选项
A、equal
B、similar
C、close
D、alike
答案
B
解析
语义衔接题。[A]、[B]和[C]均可以与介词to搭配:equal to意为“相同”;similar to意为“与……相似”;close to意为“接近,靠近”。前文已经提到人醒着的时候电波是很小的,因此它们之间是相似的,故[B]为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2828144.html
相关试题推荐
Ifapersontalksabouthisweakpoints,hislistenerisexpectedtosaysomethi
Themostexcitingkindofeducationisalsothemostpersonal.Nothingcane
Themostexcitingkindofeducationisalsothemostpersonal.Nothingcane
Themostexcitingkindofeducationisalsothemostpersonal.Nothingcane
Themostexcitingkindofeducationisalsothemostpersonal.Nothingcane
Whenthereisavacancyinacompany,itisthejobofthePersonnelManager
Whenthereisavacancyinacompany,itisthejobofthePersonnelManager
【B1】[br]【B20】A、personalB、individualC、averageD、commonB本题测试词义逻辑搭配,individual
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
随机试题
手机使人们能够简单快捷地相互沟通。Automobilecanmakepeoplecontactwitheachothereasilyandq
Manyprivateinstitutionsofhighereducationaroundthecountryareindang
TheWebbrowserisnice,butitalsohasits______.A、defectsB、faultsC、cracks
设矩阵相似于矩阵.(1)求a,b的值;(2)求可逆矩阵P,使为对角阵
始终坚持人民电业为人民的公司宗旨,弘扬以客户为中心、专业专注、持续改善的企业核心
新生儿溶血病换血治疗时,如果存在Rh(D)溶血的同时还存在ABO溶血,则下列最好
我国高程系统采用( )。A.正高系统 B.正常高系统 C.大地高系统 D
哥哥现在的年龄是弟弟当年年龄的3倍,哥哥当年的年龄与弟弟现在的年龄相同,哥哥与弟
古人形容漂亮可以用“貌比潘安”“玉树临风”“顾盼神飞”,我们只会说“高富帅”“白
2011年我国全年货物进出口总额36421亿美元,比上年增长22.5%。其中,
最新回复
(
0
)