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
24
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] 【C2】
选项
A、of
B、about
C、for
D、on
答案
A
解析
惯用衔接题。be aware of为固定搭配,意为“意识到……”,故答案为[A] of。
转载请注明原文地址:https://tihaiku.com/zcyy/2828132.html
相关试题推荐
Itisonethingtoaccuseapersonofacertaincrime,but______.A、provingiti
【B1】[br]【B4】A、celebrityB、veteranC、personalityD、authorityB名词辨义题[考频:38]。选项均为
【S1】[br]【S9】FYoursearchisover.Iamthepersonyouarelookingfor.(你不用再去找了,
____________(说到教育),themajorityofpeoplebelievethataperson’seducationis
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
随机试题
SinceearlycolonialtimesAmericanpeoplehaveshownagreatconcernfored
Undernocircumstance______(你都不应该借钱给他).shouldyoulendanymoneytohim①此处翻译的是句
Crimeisincreasingworldwide.Thereiseveryreasontobelievethe【B1】_____
A.贝壳狭长,耳状,末端5~7个开孔B.贝壳呈长条形或长卵形,背腹缘呈平行C.贝
新生儿宫内感染肺炎的主要病原体是<P>A.病毒<br>B.衣原体<br>C.支原
在银行风险管理中,银行()的主要职责是负责执行风险管理政策;制定风险管理的程序
价格受供求的影响而围绕价值上下波动,不是对价值规律的否定,而是价值规律作用的表现
《火灾分类》(GB/T4968)按物质的燃烧特性将火灾分为:A类火灾、B类火灾、
某新建商住楼工程,钢筋混凝土框架一剪力墙结构,地下1层,地上16层,建筑面积2.
结肠癌病灶穿透肠壁,侵入浆膜,但无淋巴结转移者 A.DukesA期 B.
最新回复
(
0
)