首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors to keep it away from danger.
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors to keep it away from danger.
admin
2015-03-13
45
问题
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors to keep it away from danger. It is powered entirely by the sun. Should we program the robot to be equally active at all times? No. The robot would be using up energy at a time when it was not receiving any. So we would probably program it to cease its activity at night and to wake up at dawn the next morning.
According to the evolutionary(进化的)theory of sleep, evolution equipped us with a regular pattern of sleeping and waking for the same reason. The theory does not deny(否认)that sleep provides some important restorative functions. It merely says that evolution has programmed us to perform those functions at a time when activity would be inefficient and possibly dangerous. However, sleep protects us only from the sort of trouble we might walk into; it does not protect us from trouble that comes looking for us. So we sleep well when we are in familiar, safe place, but we sleep lightly, if at all, when we fear that bears will nose into the tent.
The evolutionary theory accounts well for differences in sleep among creatures. Why do cats, for instance, sleep so much, while horses sleep so little? Surely cats do not need five times as much repair and restoration as horses do. But cats can afford to have long periods of inactivity because they spend little time eating and are unlikely to be attacked while they sleep. Horses must spend almost all their waking hours eating, because what they eat is very low in energy value. Moreover, they cannot afford to sleep too long or too deeply, because their survival depends on their ability to run away from attackers.
The author uses the example of the robot in space exploration to tell us______.
选项
A、the differences between robots and men
B、the reason why men need to sleep
C、about the need for robots to save power
D、about the danger of men working at night
答案
B
解析
根据文中内容,使用机器人的例子描述机器人即使不工作也一直消耗完能量,机器人需要休息。由此想告诉我们为什么人类需要休息。
转载请注明原文地址:https://kaotiyun.com/show/ZMUC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
WhenIwasabout12Ihadanenemy,agirlwholikedtopointoutmyshortcomings.Weekbyweekherlistgrew:Iwasskinny,Iw
Cultureshockistheresultoftheremovalofthefamiliar.Suddenlytheindividualisfacedwiththenecessityofworking,comm
Morethanfortythousandreaderstolduswhattheylookedforinclosefriendships,whattheyexpected【56】friends,whattheywer
Mostofusgrowuptakingcertainthingsforgranted.Wetendtoassumethatexpertsandreligiousleaderstellus"thetruth".
Successinthelabdoesn’talwaysmeanimmediatesuccessonalarge______.
Therearemorethan40universitiesinBritain—nearlytwiceasmanyasin1960.During1960seightcompletelynewonesmorefoun
Formalityhasalways______(character)theirrelationship.
Friendsplayanimportantpartinourlives,andalthoughwemaytakethefactoffriendshipforgranted,weoftendon’tclearly
Friendsplayanimportantpartinourdailylives,andalthoughwemaytakefriendshipforgranted,weoftendon’tclearlyunder
Bodylanguageisaneasierwayofexpressingfeelingsthanspoken【C1】______.Forexample,youdonotsaytosomeoneeasilythat
随机试题
在机体水液代谢过程中起主要作用的脏腑是
关于tRNA转录后加工,正确的是
下列哪个(些)临床症状提示为中度有机磷酸酯类中毒
除财政部门外,对单位会计实施监督的还有()
甲公司为增值税一般纳税人,2015年11月进口一批化妆品,海关核定的关税完税价格为70万元,甲公司缴纳进口关税7万元、进口消费税33万元。已知增值税税率为17%。甲公司进口该批化妆品应当缴纳的增值税税额为()。
情绪情感的定义是什么?
峰终定律是指人记忆某项事物的体验取决于开始和结束时的感觉。根据上述定义,下列选项没有运用到峰终定律的是()。
阅读下列程序说明和C++程序,把应填入其中(n)处的字句,写对应栏内。【说明】下面的程序实现了类String的构造函数、析构函数和赋值函数。已知类String的原型为:classString{public:
•ReadthearticlebelowaboutNewtown.•Foreachquestion31-40,writeonewordonyourAnswerSheet.
Thebuildingnow______downisouroldofficebuilding.
最新回复
(
0
)