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
2024-02-12
26
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] 【C16】
选项
A、events
B、incidents
C、cases
D、affairs
答案
A
解析
语义衔接题。根据上下文可知,此处说的是梦中发生的事情。[A]events可指任何大小事件,与“梦”里的事情相符,故为答案。干扰项[B]incidents指小事件或附带事件,也可指政治上具有影响的事件或事变。
转载请注明原文地址:https://tihaiku.com/zcyy/3444412.html
相关试题推荐
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
Whenapersonfallsasleep,allactivitydecreasesandthemusclesrelax.Th
随机试题
[originaltext]FlorenceHayesisajournalistfortheGreenVilleJournal,t
A.classifiedB.conductedC.dietingD.earlierE.laterF.
档案工作实行统一领导,集中管理的原则,维护档案完整与安全,便于社会各方面的利用。
最能体现导游服务水平的带团技能是( )。A.规范化技能 B.人性化技能 C
下列细胞中,可用于作用间接血凝试验的载体的是A.人O型红细胞B.人A型红细胞C.
头孢噻肟通常需避光保存的原因为A.头孢噻肟光照作用下分解为乙酰氧基头孢噻肟 B
开关柜内电流互感器一次接线发热,热点温度(),属于危急缺陷。(A)δ大于等于95
触电者神志丧失,判断意识无,心跳停止,但有极微弱的呼吸时,应立即施行心肺复苏法抢
J82、下面现象不属于电力系统振荡的为( )(A)电压电流突变;
员工素质测评指导语的内容有( )。A.测评目的 B.举例说明填写要求 C.
最新回复
(
0
)