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、Only one dolphin was able to see the light. B、The male dolphin received more rewards. C、Both dolphins were put in the same tan
A、Only one dolphin was able to see the light. B、The male dolphin received more rewards. C、Both dolphins were put in the same tan
admin
2021-07-14
45
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、Only one dolphin was able to see the light.
B、The male dolphin received more rewards.
C、Both dolphins were put in the same tank.
D、The lever was beyond the dolphins’ reach.
答案
A
解析
在实验的第二个阶段,文中提到 it was only Doris who could see the light 这句话直接告诉了我们答案,因此正确答案应当是A)。
转载请注明原文地址:https://kaotiyun.com/show/rHJ7777K
0
大学英语六级
相关试题推荐
儒家思想(Confucianism)有时候被当作一种宗教,但它更是一种伦理体系。孔子是儒家思想的创始人,孟子(Mencius)和荀子都是先秦时期儒家学说的代表人物,都对儒学的发展做出过巨大贡献。儒家思想的核心是“仁”(benevolence),主张仁爱人之
《史记》(RecordsoftheGrandHistorian)不以时间为顺序,而是以人物为中心来记录历史事实,开创了新的史书写作手法。
互联网不仅给人们的生活带来了便利,也带来了很多隐患,尤其是个人信息的泄漏。上海的一项网上调查显示:97.4%的受访者称曾收过垃圾短信(spammessage)或骚扰电话(harassmentcall),60%受访者认为个人信息安全存在风险。个人信息泄露
Forthispart,youareallowed30minutestowriteashortessaytoexplainWhyarePeoplenotWittingtoHelp.Youressayshoul
A、Thosehavingatasteorsmellcomponent.B、Productspotentiallyembarrassingtobuy.C、Thosethatrequireverycarefulhandlin
随着生活水平的提高,人们的营养状况得到改善,“发福者”日渐增多。肥胖(obesity)可不仅仅是影响人们的体型而已。研究发现,肥胖是一个特别重要的与生活方式有关的癌症决定因素。世界卫生组织的国际癌症研究机构(theInternationalAgency
A、Increasingfinesfortrafficviolation.B、Reducingtollsonhighways.C、Banningpublictransportpartially.D、Enlarginginsura
ResultsshowedthatatleastatenthoftheHarvardfirst-yearundergraduatespolledadmittedtohavingcheatedonanexamprior
TakingVacationsExperiencesan82PercentIncreaseinJobPerformanceA)Thistimeofyear,manyEuropeansarelookingforwardt
A、Sheworkedasadoor-to-doorsalesperson.B、Sheworkedasashopassistant.C、Sheworkedasawaitressatarestaurant.D、She
随机试题
下列选项中,不属于宾语省略的一项是【】
腹外疝术后对患者正确的要求是
以下不属于虚证临床表现的是
某男,25岁。近日,腹痛肠鸣,泻下粪便臭如败卵,泻后痛减,泻下伴有不消化食物,脘腹胀满,嗳腐吞酸,不思饮食。舌苔垢浊或厚腻,脉滑。治疗宜选用的中成药是()。
中国银监会选择以()作为我国混合资本工具的主要形式。
根据刑事法律制度的规定,下列行为构成违法提供出口退税凭证罪的有()。
甲公司与张某签订了3年的劳动合同,在劳动合同中约定试用期满的月工资800元,甲公司所在地的最低工资标准为750元。根据劳动合同法律制度规定,张某在试用期的月工资不得低于()元。
某班级数学期末考试中,参加过某课外辅导班的学生成绩要明显优于没有参加该课外辅导班的学生,所以该数学课外辅导班的效果非常好。以下哪项如果为真,最能削弱上述论述?
计算行列式
Beingassertiveisbeingabletocommunicatewithotherpeopleclearly.Ifyoufeltthatyouhadexpressedwhatwasimportantto
最新回复
(
0
)