首页
登录
职称英语
[originaltext]W: One of the most interesting experiments with dolphins must be
[originaltext]W: One of the most interesting experiments with dolphins must be
游客
2024-05-16
4
管理
问题
W: One of the most interesting experiments with dolphins must be one done by Doctor Jarvis Bastian. What he tried to do was to teach a male dolphin called Bass and a female called Doris to communicate with each other across a solid barrier.
M: So how did he do it exactly?
W: Well, first of all, he kept the two dolphins together in the same tank and taught them to press levers whenever they saw a light. The levers were fixed to the side of the tank next to each other. If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one. If the light was kept steady, the dolphins were supposed to press the levers in reverse order. Whenever they responded correctly, they were rewarded with fish.
M: Sounds terribly complicated.
W: Well, that was the first stage. In the second stage, Doctor Bastian separated the dolphins into two tanks. They could still hear one another, but they couldn’t actually see each other. The levers and light were set up in exactly the same way except that this time it was only Doris who could see the light indicating which lever to press first. But in order to get their fish, both dolphins had to press the levers in the correct order. This meant of course that Doris had to tell Bass whether it was a flashing light or whether it was a steady light.
M: So did it work?
W: Well, amazingly enough, the dolphins achieved a 100 % success rate.
Questions 19 to 21 are based on the conversation you have just heard.
19. What is the purpose of Doctor Jarvis Haitian’s experiment?
20. What were the dolphins supposed to do when they saw a steady light?
21. How did the second stage of the experiment differ from the first stage?
选项
A、Swim straight into the same tank.
B、Produce the appropriate sound.
C、Raise their heads above the water.
D、Press the right-hand lever first.
答案
D
解析
女士接着介绍实验过程,海豚被要求按照灯光指示压动杠杆,如果灯光保持稳定,海豚们应该press the levers in reverse order(以相反的次序压杠杆,即先压右边的,再压左边的),故答案为[D]。
转载请注明原文地址:https://tihaiku.com/zcyy/3601518.html
相关试题推荐
[originaltext]Thiswasnoordinaryclass.Thestudentswhocametogetherwe
[originaltext]M:Dr.White,we’verecentlylearnedthatapieceoftheLarsenI
[originaltext]M:Dr.White,we’verecentlylearnedthatapieceoftheLarsenI
[originaltext]M:Doyoufeellikeyouneedmorehoursfromtheday?Well,Good
[originaltext]M:Doyoufeellikeyouneedmorehoursfromtheday?Well,Good
[originaltext]M:Doyouhaveaseatfortheconcerttomorrow?W:Noseatsata
[originaltext]M:Doyouhaveaseatfortheconcerttomorrow?W:Noseatsata
[originaltext]M:Doyouhaveaseatfortheconcerttomorrow?W:Noseatsata
[originaltext]M:Doyouhaveaseatfortheconcerttomorrow?W:Noseatsata
[originaltext]M:Doyouhaveaseatfortheconcerttomorrow?W:Noseatsata
随机试题
小学心理健康《目标伴我行》 一、考题回顾 二、考题解析 【教
建筑的主要部分的是由基础、楼地层、门窗和屋顶等四大部构成。
在OSI参考模型中,实现端到端的应答、分组排序和流量控制功能的协议层是(
从法律行为的角度,知识产权转让的特征包括()。A.知识产权转让的主体是出让方与
用于防治哮喘的药物中,与其他4个作用机理不同的是A.氯丙那林 B.沙丁胺醇
耦合电容器测得的电容值与其额定值之差应不超过额定值的()(A)-5%~+5%
A.36000元 B.37500元 C.45000元 D.48000元
制定教学计划的首要问题是( )。 A.课程设置 B.学科顺序 C.课时
成本法中一般不计息的项目是( )。A、土地成本 B、销售费用 C、建设成本
罗伯特·豪斯的路径—目标理论认为,主动征求并采纳下属的意见,属于( )类型的领
最新回复
(
0
)