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
2016-10-25
58
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/N3HC777K
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
Mostyoungpeopleenjoyphysicalactivities,walking,cycling,football,ormountaineering.Thesewhohaveapassion【C1】____
What’smoreimportanttoyou,money,acomfortablelife,orself-respect?Manypeoplebelievethatwearelivinginanagewher
Herearesomesuggestionsthatprovehelpfulforthosewhoarepreparingforajobinterview.Insomeway,a(n)【B1】______intervi
Youthisnotamatteroftimebutamatterofself-improvement,bothphysicallyandmorally.Beingagoodyouth,oneshouldhave
CocoChanel,aFrenchwoman,isveryfamousforhersuccessinthefashionworld.ThelifeofCocoChanelisaclassicrags-to-r
AlbertEinsteinrecalledhislearningproblemsphilosophically:"Myintellectualdevelopmentwasslow,asaresultofwhichIbe
HedoesnotwriteforanynewspapersexcepttheWashingtonPost.exclusively
A.Learningaforeignlanguagegaveusinsightintoanotherculture,andourmindwasopenedtonewwaysofseeingthings.B.We
Inmanycountriesintheprocessofindustrialization,overcrowdedcitiespresentamajorproblem.Poorconditionsintheseciti
A、Amovie.B、Alecture.C、Aplay.D、Aspeech.C
随机试题
病人喘而胸满闷窒,甚则胸盈仰息,咳嗽多黏腻色白,咯吐不利,兼有呕恶,纳呆,口黏不渴,苔厚腻,脉滑。此属
患者男,81岁。因“带状疱疹”在皮肤科病房住院治疗,该患者患有Ⅱ型糖尿病多年,口服降糖药物控制血糖,无COPD、肝脏疾病等其他慢性病史,2年前头颅CT示:腔隙性脑梗。晚八时许,无明显诱因出现神志不清,之前无明显不适主诉。BP90/60mmHg,HR85
A.急性心包炎B.风湿性心包炎C.扩张型心肌病D.高血压性心脏病E.肥厚型梗阻性心肌病
按照装饰装修专业工程规模标准要求,下列幕墙工程属于中型项目的是()。
下列关于液化石油气加气站的建筑防火要求的说法中,错误的是()。
奈普科技公司系江海市大型股份制企业。市国税局稽查局对奈普科技公司的纳税情况依法实施检查,发现奈普科技公司2007年6月至12月存在未按规定申报纳税的情况。市国税局稽查局根据税收法律、法规和有关规定,作出《税务处理决定书》,责令奈普科技公司补缴税款3260.
关于我国的贷款管理制度,下列错误的说法是()。
某企业2007年12月31日购入—台设备,入账价值为200万元,预计使用寿命为10年,预计净残值为20万元,采用年限平均法计提折旧。2008年12月31日该设备存在减值迹象,经测试预计可收回金额为120万元。2008年12月31日该设备账面价值应为(
商业资本在资本主义经济中的作用表现在()。
Sternrecountsherfour-yearodysseyintotheheartsandmindsofreligiousterrorists.ShetalkstoChristian,JewishandMusli
最新回复
(
0
)