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
外语
A、They couldn’t see or hear each other. B、They could hear and see each other. C、They could hear one another, but they couldn’t s
A、They couldn’t see or hear each other. B、They could hear and see each other. C、They could hear one another, but they couldn’t s
admin
2021-07-14
54
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 fitted 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 1 to 4 are based on the conversation you have just heard.
1. What is the purpose of Doctor Jarvis Bastian’s experiment?
2. What were the dolphins supposed to do when they saw a steady light?
3. What happend to the two dolphins in the second stage?
4. How did the second stage of the experiment differ from the first stage?
选项
A、They couldn’t see or hear each other.
B、They could hear and see each other.
C、They could hear one another, but they couldn’t see each other.
D、They could see one another, but they couldn’t hear each other.
答案
C
解析
在实验第二个阶段,两只海豚能听到对方,但是看不到对方,因此选C)。
转载请注明原文地址:https://kaotiyun.com/show/gHJ7777K
0
大学英语六级
相关试题推荐
独生子女
生肖(ChineseZodiac)是指代表着每个人出生年份的十二种动物。它是中国民间计算年龄的方法,也是一种古老的纪年法(chronology)。生肖的产生可能源于古代人对动物的崇拜。关于人们为什么选择这十二种动物,以及为什么按照这样的顺序排列,有许多传
科学家们早就发现,地球绕着太阳转。
屏幕少年(screenager)指的是那些经常坐在电视机和电脑前,对各类技术信息领悟能力较强的年轻人。他们的生活中充斥着各种各样的屏幕,如电脑屏幕、电视机屏幕、手机屏幕等。精力过度集中于这些屏幕,会影响他们的体质和社交能力。一项调查显示,节假日期间有超过一
A、Theyprefercooltemperatures.B、Theycansurviveextremeconditions.C、Theyarevulnerabletoradiation.D、Theyhaveaverys
A、Immediately.B、Thefollowingweek.C、Intwoweeks.D、Attheendofthesemester.B这是一道细节题,说话者说会在下周与每个人进行谈话。可见正确答案是B。
Onceitwaspossibletodefinemaleandfemaleroleseasilybythedivisionoflabour.Menworkedoutsidethehomeandearnedth
A、Heshouldmoveoutoftheapartment.B、HeshouldkickJohnoutofthedepartment.C、Heshouldnotbringanyonetotheapartmen
TryingtooHardCanSlowNewLanguageDevelopmentA)Neuroscientistshavelongobservedthatlearningalanguagepresentsadiffe
A、Toregisterforadistance-learningcourse.B、Tosignforanemploymentcontract.C、Todoameaningfulexperiment.D、Toworku
随机试题
末乳是指牛停止产乳前一周左右所分泌的乳,末乳带有微咸、苦味和油脂氧化气味。
如何处理遥控器失灵故障?
《背影》的作者是()
显影液中不包括的物质是
《检察官法》规定的不能担任检察官的条件有()。
违法事实确凿并有法定依据,对公民处以50元以下、对法人或者其他组织处以()元以下罚款或者警告的行政处罚的,可以当场作出处罚决定。
关于证券交易结算流程中的清算环节,下列表述正确的有()。
有氧运动:燃烧脂肪()。
AncientGreekphilosopherAristotleviewedlaughteras"abodilyexerciseprecioustohealth."But【B1】______someclaimstothe
关于VisualBasic“方法”的概念错误的是
最新回复
(
0
)