首页
登录
职称英语
We all know that the normal human daily cycle of activity is of some 7-8 hou
We all know that the normal human daily cycle of activity is of some 7-8 hou
游客
2024-03-05
8
管理
问题
We all know that the normal human daily cycle of activity is of some 7-8 hours’ sleep alternating with some 16 to 17 hours’ wakefulness and that, broadly speaking, the sleep normally coincides with the hours of darkness. Our present concern is with how easily and to what extent this cycle can be modified.
The question is not mere academic one. The case, for example, with which people can change from working in the day to working at night is a question of growing importance in industry where automation calls insistently for round-the-clock working of machines. It normally takes from five days to one week for a person to adapt to reversed routine of sleep and wakefulness, sleeping during the day and working at night. Unfortunately, it is often the ease in industry tint shifts are changed every week; a person may work from 12 midnight to 8 a.m. one week, 8 a.m. to 4 p.m. the next, and 4 p.m. to 12 midnight the third and so on. This means that no sooner has he got used to one routine than he has to change to another, so that much of his time is spent neither working nor sleeping very efficiently.
One answer would seem to be longer periods on each shift, a month, or even three months. Recent research by Bonjer of the Netherlands, however, has shown that people on such systems will revert to their normal habits of sleep and wakefulness during the weekend and that this is quite enough to destroy any adaptation to night work built up during the week.
The only real solution appears to be to hand over the night shift to a corps of permanent night workers whose nocturnal wakefulness may persist through all weekends and holidays. An interesting study of the domestic life and health of night-shift workers was carried out by Brown. She found a high incidence of disturbed sleep, digestive discord and domestic disruption among those on alternating day and night shifts, but no abnormal occurrence of these symptoms among those on permanent night work.
选项
A、how the normal human daily cycle works
B、how to deal with the problem of shift work
C、a research on the normal human daily cycle
D、how to work better
答案
B
解析
主旨大意题。文章第一段谈到了人们正常的作息规律,第二段说明了三班倒的工作使人得不到正常的休息,破坏了睡眠规律,第三、四段提出了解决的办法,综上所述,B项是全文的中心思想。
转载请注明原文地址:https://tihaiku.com/zcyy/3508814.html
相关试题推荐
A、stopdecliningB、returntonormalC、continuetoworsenD、haveasubtlechange
[originaltext]Stressisaverynormalpartoflife.Mostpeoplefeelstress
[originaltext]Stressisaverynormalpartoflife.Mostpeoplefeelstress
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.Ho
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.Ho
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
[originaltext]Wethinkofaerobicsasbeingahighimpactactivitybutactu
It’snormaltothinkofaconversationastakingplacebetweenpeoplewhoar
It’snormaltothinkofaconversationastakingplacebetweenpeoplewhoar
It’snormaltothinkofaconversationastakingplacebetweenpeoplewhoar
随机试题
America’s-mostpopularnewspaperwebsitetodayannouncedthattheeraoffre
[originaltext]Goodmorning,ladiesandgentlemen.I’mJoannaWhite,asenio
发动机机油压力警告灯如果常亮说明()A.机油压力过高 B.机油油面过高 C
关于急性化脓性腮腺炎病因的说法不包括A.主要致病菌是链球菌 B.常见于体质虚弱
水泥混凝土粗集料岩石抗压强度与混凝土抗压强度等级之比应不小于()。A.1.0
质量检验功能中,为质量控制、质量改进、质量考核以及管理层进行质量决策提供重要信息
基金管理公司的风险管理部门包括()。 A.监察稽核部B.市场部C.风险管
反应此温度下平衡时,如p(PCl5)=p(PCl3),则p(Cl2)等于:A.
某基坑开挖深度为45m,水位位于自然地坪下2m,在基坑一侧距基坑3m有一政供水管
阻塞性肺气肿最基本的发病机制是A.肺大疱 B.α-AT缺乏 C.肺小血管痉挛
最新回复
(
0
)