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
2023-09-04
65
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、Only one dolphin was able to see the light.
B、The male dolphin received more rewards.
C、The lever was beyond the dolphins’ reach.
D、Both dolphins were put in the same tank.
答案
A
解析
女士在介绍完实验的第一阶段后,男士表示实验内容对海豚来说很复杂,女士则说第二阶段更困难。因为在第二阶段,只有Doris could see the light indicating which lever to press first(能看到指示该先压哪个杠杆的灯光),故答案为[A]。对话中比较处常设为考点,听音时可以适当做笔记。
转载请注明原文地址:https://tihaiku.com/zcyy/2985253.html
相关试题推荐
[originaltext]Afewtimeseachmonth,second-gradepupilsataprimarysch
[originaltext]Afewtimeseachmonth,second-gradepupilsataprimarysch
[originaltext]Afewtimeseachmonth,second-gradepupilsataprimarysch
[originaltext]M:Hithere.(19)Haveyouheardthatthecompanyiscuttingstaff?
[originaltext]M:Hithere.(19)Haveyouheardthatthecompanyiscuttingstaff?
[originaltext]M:HeyLinda,didyougetthatletteraboutthenewoptionsforf
[originaltext]W:Ireallyappreciateyourhelp.Withoutyourdirection.Imayhav
[originaltext]W:Ireallyappreciateyourhelp.Withoutyourdirection.Imayhav
[originaltext]W:Ireallyappreciateyourhelp.Withoutyourdirection.Imayhav
[originaltext]W:Ireallyappreciateyourhelp.Withoutyourdirection.Imayhav
随机试题
[originaltext]Excuseme,couldyoutellmewhereMikeEwing’sdeskis?(A)That’
CrossCulturalAdvertisingAsuccessfulcrossculturaladvertisingcampaignlarg
[originaltext]W:HeyGeorge,takealookatthisarticle.Itsaysseveralmajor
Themanwehadarresteddoesn’t______yourdescriptionofthethief.A、answerto
以下关于解释方式下运行程序的叙述中,错误的是()。A.先将高级语言程序转换为
中国证券业协会应当建立对承销商()日常监管制度,加强相关行为的监督检查,发
马拉松赛跑中的“马拉松”一词是指()。 A.人名B.地名C.山名D.河
慢性支气管炎发生阻塞性肺气肿的病变基础是 A.呼吸道黏液-纤毛排送系统受损B
建立一个期货头寸,待这个期货合约到期前将其平仓,再建立另一个到期日较晚的期货头寸
下列交易或事项,一般适用《企业会计准则第12号—债务重组》的是( )。 A.
最新回复
(
0
)