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
18
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
[originaltext]Well,ToyotareallyappearstobeonthevergeofbecomingNo.
Despitetheclear-cuttechnologicaladvantages,therailroaddidn’tbecomet
图示石材幕墙中连接方式中,抗震性能好且易于更换的是( )。 A. B.
概述20世纪初欧洲在世界优势地位的主要表现,并分析第一次世界大战对这种优势地位的
频发性室性期前收缩的定义是A.室性期前收缩>60次/分钟 B.室性期前收缩>3
TheForbiddenCityluresmillionsofvis
Thechangeinthatvillagewasmiraculou
医师和药师针对一些常见病多发病,再根据临床需要和用药经验总结整理制订的一些行之有
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
发包人造成建设工程质量缺陷,应当承担过错责任的情形不包括()。A.提供的设
最新回复
(
0
)