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
7
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] 【C8】
选项
A、up
B、over
C、out
D、into
答案
D
解析
惯用衔接题。fall into sleep为固定搭配,意为“入睡”,故答案为[D]into。
转载请注明原文地址:https://tihaiku.com/zcyy/3444404.html
相关试题推荐
【B1】[br]【B4】A、celebrityB、veteranC、personalityD、authorityB名词辨义题[考频:38]。选项均为
Wehavebeentoldthatundernocircumstances____________(不能用办公室里的电话)forperson
____________(说到教育),themajorityofpeoplebelievethataperson’seducationis
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
Anotherperson’senthusiasmwaswhatsetmemovingtowardthesuccessIhave
随机试题
[originaltext]Job-seekingskillsresearchclearlyprovesthatemployersfoc
[originaltext]W:Soundsgood.Thatkindofresponsibilitycanbeintimidatingi
Whichofthefollowingreflexivepronouns(反身代词)isusedasanappositive(同位语)?A、T
Forthousandsofyearsmanhasexploitedandoftendestroyedtherichesofl
[originaltext](12-1)Swedishfathersfromnextyearwillreceiveathirdmo
通过遍历用例的路径上基本流和备选流的黑盒测试方法是( )。A.等价类划分法
A.柴胡 B.淫羊藿 C.红花 D.旋覆花 E.黄柏常用盐炒增强人肾经作
经过研究调查,老年口腔健康的主要问题是调查结果显示,导致老年人牙齿丧失的问题主要
2010年8月,A市B房地产开发公司通过合法方式,在该市城市规划区内,取得了一块
航道疏浚施工中不需要泥驳配合施工的挖泥船有()挖泥船。A.耙吸式B.绞吸式
最新回复
(
0
)