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
Can animals be made to work for us? Some scientists think that one day animals may be trained to do a number of simple jobs that
Can animals be made to work for us? Some scientists think that one day animals may be trained to do a number of simple jobs that
admin
2012-11-20
37
问题
Can animals be made to work for us? Some scientists think that one day animals may be trained to do a number of simple jobs that are now done by human beings.
They point out that at a circus, for example, we may see elephants, monkeys, dogs and other animals doing quite skillful things. Perhaps you have seen them on the television or in a film. If you watch closely, you may notice that the trainer always gives the animal a piece of candy or a piece of fruit as a reward. The scientists say that many different animals may be trained to do a number of simple jobs if they know they will get a reward for doing them.
Of course, as we know, dogs can be used to guard a house, and soldiers in both old and modern times have used geese to give warning by making a lot of noise when a stranger or an enemy comes near. But it may be possible to train animals to work in factories. In Russia, for example, pigeons which are birds with good eyesight, are being used to watch out for faults in small steel balls that are being made in one factory. When the pigeon sees a ball which looks different from others, it touches a steel plate with its beak. This turns on a light to warn people in the factory. At the same time a few seeds are given as a reward. It takes three to five weeks to train a pigeon to do this and one pigeon can inspect 3 000 to 4 000 balls an hour.
Apes have been used in America in helping to make cars, and scientists believe that these large monkeys may be one day gather crops and even drive trains.
Many animals may be trained to do simple jobs if they know______.
选项
A、who their trainers are
B、they will be praised by their trainers
C、they will get a reward
D、something dangerous will happen to them
答案
C
解析
参见句子:The scientists say that many different animals may be trained to do anumber of simple jobs if they know they will get a reward for doing them.
转载请注明原文地址:https://kaotiyun.com/show/eheC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
A、causeB、launchC、faultD、laughD
Janeisalwaysreadytohelppeopleinneedbecauseshethinksita______.
Theteacherwarnedthatanyonewhowascaught______duringthetestwouldbepunished.
MydaughterandItooka______touraroundNewYorkCity.
Scientistswereembroiled(使卷入)lastweekinaninternationalrowovergeneticallymodifiedcotton(GMcotton).AstudyinC
TheMinisterofJusticehas______animmenseamountofcorrespondencebeforebreakfast.
FromMondayuntilFridaymostpeoplearebusyworkingorstudying,butintheeveningsandonweekendstheyarefreeandenjoy
Ahundredyearsago,thegamewenowcallfootballdidnotexist.Americanfootballstartedduringagamebetweentwocolleges.
Thehumorousstorymaybetoldtogreatlength,andmaywanderaroundasmuchasitpleases,andarrivenowhereinparticular;b
SpeakerA:I’dliketofixanappointmentwiththepersonalmanager.Willninetomorrowmorningbeallright?SpeakerB:______
随机试题
法律规定,财产所有权一律从交付时起转移,登记只是一种证明。()
有效沟通需要的条件是()。
总承包工程项目,由总承包单位负责()整理所有有关的施工技术资料。
投资者应当遵守“买卖自负"的原则,承担股指期货交易的履约责任,如果投资者不符合投资者适当性标准的,可以以不符合投资者适当性标准为由拒绝承担股指期货交易履约责任。()
某增值税一般纳税企业自建一幢仓库,购入工程物资100万元,增值税为17万元,已全部用于建造仓库;耗用库存材料50万元,应负担的增值税税额为8.5万元,支付建筑工人工资28万元。该仓库建造完成并达到预定可使用状态,其入账价值为()万元。
课堂常规是每名学生必须遵守的最基本的日常()。
假设某单位已从NTC处得到一个211.70.248.0的C类网址,现根据需要将它划分为6个不同的子网。计算并回答下面的问题。写出各个子网的开始与结束IP地址。
在计算机中,指令和数据均是以二进制代码存放的,那么能够区分指令和数据的部件是()。
故意犯罪的行为人对自己的行为发生危害社会的结果所持的心理态度是()。
对于被判处死刑、无期徒刑的犯罪分子,可以剥夺政治权利终身。()
最新回复
(
0
)