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
2023-08-08
32
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 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、Produce the appropriate sound.
B、Press the right-hand lever first.
C、Raise their heads above the water.
D、Swim straight into the same tank.
答案
B
解析
从原文中If the light was kept steady, the dolphins were supposed to press the levers in reverse order.可以得知,相反的方向为the right-hand lever。
转载请注明原文地址:https://tihaiku.com/zcyy/2907174.html
相关试题推荐
[originaltext]TodayI’mgoingtotalkaboutGermany’sdreamairportinBerli
[originaltext]TodayI’mgoingtotalkaboutGermany’sdreamairportinBerli
[originaltext]TodayI’mgoingtotalkaboutGermany’sdreamairportinBerli
[originaltext]Free-marketcapitalismhasn’tfreedus;ithastrappedus.It’
[originaltext]Haveyoueverhadsomeonetrytoexplainsomethingtoyouado
[originaltext]TodayI’mgoingtotalkaboutGermany’sdreamairportinBerli
[originaltext]TodayI’mgoingtotalkaboutGermany’sdreamairportinBerli
[originaltext]Haveyoueverhadsomeonetrytoexplainsomethingtoyouado
[originaltext]Haveyoueverhadsomeonetrytoexplainsomethingtoyouado
[originaltext]Haveyoueverhadsomeonetrytoexplainsomethingtoyouado
随机试题
WhenaNewYorkerwashikinginEurope,hisSwissfriendkeptsaying"Listen
对于生殖腺的发生,下列哪项说法不恰当A.睾丸决定因子位于Y染色体短臂性决定区
B企业为禽类加工企业,有员工415人,厂房占地15000m2,有一车间、二车间、
中国成人超重和肥胖症预防与控制指南指出,中国成年人男性腰围(),女性腰围(
(2014年)通过收购股权的方式进行并购时,对目标公司进行估值所使用的折现率应是
天麻苷属于A.硫苷 B.吲哚苷 C.酚苷 D.醇苷 E.碳苷
无粘结预应力筋的张拉应严格按设计要求进行。当设计无要求时,通常,在预应力混凝土楼
过分合理化:指外在动机损害了内在动机。下列属于过分合理化的是()。A.有些孩子
共用题干 某运输企业投资400万元,购买了20辆额定吨位为5吨的货车,预计年固
关于混凝土工程定额的说法,正确的有()。A.预制混凝土定额不包括模板制作与安装
最新回复
(
0
)