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、Both of them press the lever at the same time. B、One of them presses the right-hand lever first. C、One of them presses the lev
A、Both of them press the lever at the same time. B、One of them presses the right-hand lever first. C、One of them presses the lev
admin
2016-07-29
23
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.
1. What is the purpose of Doctor Jarvis Bastion’s experiment?
2. What were the dolphins supposed to do when they saw a steady light?
3. How did the second stage of the experiment differ from the first stage?
4. What should the dolphins do to get rewarded?
选项
A、Both of them press the lever at the same time.
B、One of them presses the right-hand lever first.
C、One of them presses the levers in the right order.
D、Both of them have to press the levers correctly.
答案
D
解析
女士在介绍实验的工作原理之后说到,当海豚做出正确的回应。它们就会被奖励鱼吃。然后在实验第二阶段也谈到。要得到鱼的话,两只海豚都要能以正确的顺序来按杠杆。故D项正确。A中的“同时按杠杆”没有在对话中提及,不选;女士强调两只都要能正确按下杠杆才能吃到鱼。而不是B和C项所说的“One of them”,所以都予以排除。
转载请注明原文地址:https://kaotiyun.com/show/EqG7777K
0
大学英语六级
相关试题推荐
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvilledetailingthelatestfindingsineffortstocreat
A、Togivethemfruits.B、Toprovidewater.C、Toplantflowers.D、Tokeeppets.B短文谈到,其中一个最确定的方法是提供水,故选B。
A、Blackdoctorsweren’tallowedtousemedicalequipment.B、Blackdoctorswerehatedbypatients.C、Blacksweren’tallowedtodo
A、FuturegrowthofcollegestudentsinAmericaislikelytobequicker.B、Therearelessthan2,000universitiesorcollegesin
A、Amancarefulwithmoney.B、Abook-lover.C、Anoisyreader.D、Atrouble-maker.A选项描述的是男士的特点,从他两次提及pay,可见花钱很谨慎,故A正确。B、D从原文内容无法推
A、Achocolatechipmaker.B、Abigrealestateagent.C、Acookiefactory.D、Atalentagency.D短文一开始说,Amos本来是WilliamMorris公司的一个tal
Manyparentsworrytheirchild’sbadbehaviorisaresultoftheirparentingmistakes,butnewresearchsuggeststhismaynotbe
A、Standneartallobjectsandbendlowtotheground.B、Disconnectelectronicequipmentquickly.C、Keepawayfromwaterandmeta
A、Toachieveastateofdeeprelaxationispossiblethroughvariousmeans.B、Sittinginanarmchaircanreflectone’scharacter.
A、Bothofthempresstheleveratthesametime.B、Oneofthempressestheright-handleverfirst.C、Oneofthempressesthelev
随机试题
Astronautsonshortershuttlemissions(使命)oftenworkverylongdays.Tasksarescheduledsotightlythatbreaktimesareoftenu
急性阑尾炎非手术治疗的适应证是
男,22岁。3周前发热、流涕、咽痛,体温37~38℃,近一周自觉喘憋,心悸和乏力,呈进行性加重,既往体健。查体:T37℃,R22次/分,BP100/65mmHg,颈静脉无怒张,双下肺可闻及湿性啰音,实验室检查血肌钙蛋白升高。最有助于确定喘憋原因的辅助检
Q235钢材型号中的“235”表示钢材的哪种强度?
为保证标准贯入试验成果的可靠性,钻探时应注意保证质量,下列要求中不正确的是()。
按CIF术语成交,卖方一般情况下只投保最低险别及战争险。()
课税对象构成了税收实体法诸要素中的基础性要素,主要是因为()。
某公司非常重视员工的培训与开发工作,通过有计划地给员工传授其工作所需的知识、技能,以及应具备的工作态度,使员工基本能够胜任本职工作,并不断提高个人技能。该公司对于新入职员工实施职(岗)前培训与开发,大大提高了新员工的工作效率。根据材料回答以下问题。根
幼儿期儿童的主导活动是()。
简述影响国际储备需求数量的主要因素。
最新回复
(
0
)