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
Every morning, Allie wakes up and accompanies her friend to the washroom. She turns on the light, soaps up a washcloth, and begi
Every morning, Allie wakes up and accompanies her friend to the washroom. She turns on the light, soaps up a washcloth, and begi
admin
2015-01-09
27
问题
Every morning, Allie wakes up and accompanies her friend to the washroom. She turns on the light, soaps up a washcloth, and begins cleaning her friend’s face. Is Anie an extremely devoted companion? Yes! Allie is a capuchin monkey who helps her disabled friend perform everyday tasks.
Monkeys like Allie are just one of many kinds of animals that help improve—or even save—human lives. But not all animals are suited to do every job. Certain animals are "hired" for specific jobs based on their traits, or characteristics. By using different methods of conditioning(training animals to act in a particular way in response to a stimulus, or signal), humans can teach animals toper form extraordinary tasks.
Throughout history, humans have relied on animals’ traits to get certain jobs done. For example, compared with humans, dogs are "far superior at tracking down odors," says Marian Bailey, an animal behaviorist at Henderson State University in Arkansas. That’s because dogs have million of olfactory receptors, or smell nerves, in their noses.
For that reason, hunters used dogs to track down prey even in ancient Egypt. Today, dogs my be employed to sniff out illegal substances in school lockers or earthquake victims buried beneath the rubble of the collapsed building or highway.
Primates may not be good sinffers, but they can certainly lend a helping hand—or two. Monkeys are perfect helpmates for quadriplegics, people paralyzed from the neck down who are unable to use their own hands(and legs). Like humans, explains Bailey monkeys have opposable thumbs—thumbs that face the hand’s other fingers—so monkeys can pick up objects. Capuchins learn to open doors, clean up spills, and unscrew bottle tops. They can even get a sandwich out of the refrigerator and load your favorite tape into the VCR.
And speaking of VCRs, animals are even helping scientists make a videotape. Jennifer Hurley, an animal researcher at the Long Marine Lab in Santa Cruz, California, is training two sea lions to carry video cameras on their backs to record the natural behavior of whales.
So how do you get an animal employee to do its job? The answer, career-training Trainers teach the animals to obey their instructions through a process called conditioning.
Most trainers condition animals by using positive reinforcement, rewarding an animal for doing something correctly, says animal behaviorist Bailey. For example, trainers teach their dogs how to sniff out drugs by hiding a towel with the smell of drugs. "Dogs love to retrieve objects so the towel becomes a reward," says Morris Berkowitz, who heads up a canine drug-sniffing program in New York.
After repeating this game of hide-and-seek many times, the dog begins to "associate the odor with a reward," says Berkowitz. When he gives the command, or stimulus, the dog seeks cot drugs(it’s like learning to study hard for a tests in order to get a good grade as a reward.)
At "Helping Hands—Monkey Helpers for the Disabled," capuchin monkeys are trained twice before being teamed with a disabled human. First, monkeys are placed with a foster family to become socialized to people. For five years, families help the monkeys adapt to a human environment, so the monkeys will trust and enjoy being around people.
Taking the monkeys in when they’re four to six weeks old is important, says Bailey. "That’s when monkeys normally become socialized to other monkeys," she says.
Second, trainers at Helping Hands train the monkeys to perform specific tasks to assist a particular person. For example, a monkey may be trained to scratch an itch, or slip a floppy disc into a computer dive. Trainers reward the monkeys by using positive reinforcement, such as food, drinks.
Directions: The passage below summarizes the main points of the passage. Read the summary and then select the best word or phrase, from the box blow, according to the passage. You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center.
[*]
Allie is a capuchin【R1】______who helps her disabled friend perform everyday tasks. Allie is a(n) 【R2】______of many animals who can be【R3】______to do certain jobs. Besides monkeys,【R4】______and sea lions can also give people a helping【R5】______.
Dogs are good at【R6】______down prey and sniffing out【R7】______and【R8】______because they have millions of【R9】______in their nose. Monkeys are good helper for the【R10】______, who cannot look after themselves. Sea lions can help scientists to record the【R11】______of whales because they can【R12】______to the deep ocean. In addition,【R13】______are part of whales’ natural environment, which makes the video more【R14】______.
But animals cannot do the jobs【R15】______training. The main process of training is called【R16】______, which uses【R17】______. During the training, trainers【R18】______an animal for doing something【R19】______. For mon-keys, the positive reinforcement can【R20】______a year before they are qualified for their jobs.
【R7】
选项
答案
M
解析
转载请注明原文地址:https://kaotiyun.com/show/HPLO777K
0
考博英语
相关试题推荐
Thepubliccanrest______thatdetectivesaredoingeverythingpossibletofindthemurderer.
It’saseriouscrimethatpeople______goodsoutofChinatoavoidpayingcustomsduty.
Theamazingsuccessofhumansasa【1】istheresultoftheevolutionarydevelopmentofourbrainswhichhasled,amongotherthin
Theelectricalimpulsesarefinally______backintothespotsoflightthatmakeupthepictureonthetelevisionscreen.
Nextweekyou’dbetterbringallyourquestionshere.We’regoingtohaveaquestion-and-answer______.
Recentlyscientistshavebeen【1】andperfectingothersourcesofenergy:nuclearoratomicpower,solar(sun)power,andsynthetic(
Pupilsoftenwanttositnexttotheirparticularfriendandmanyclassroomactivitiesinvolvemovingabout,butevenrelatively
IhadvisitedthecapitalbeforealthoughmyfriendArthurhadnot,IfirstvisitedLondonasastudent,reluctantlyreleasedfr
Familyisolderthanthehumanspecies-workisyounger,friendshipisaboutasoldasweare.Itisfriendshipthatmarksusas
Themedicine______hispainbutdidnotcurehisillness.
随机试题
下列各项,可见口干但欲漱水不欲咽症状的是
王主任是某护理部主任,她把工作分配给总护士长等管理人员,对于例行性业务按照常规措施和标准执行,她加以必要的监督和指导,只有特殊情况时她来处理。她可集中精力研究及解决全局性管理问题,也调动了下级的工作积极性,这种工作方式遵循的组织原则是()
按照年度施工计划,某工程项目在本年度的安全文明施工费总额为40万元,则发包人应在工程开工后28天内,预付给承包人的安全文明施工费应不低于()万元。
( )是施工项目降低成本的指导文件,是设立目标成本的依据。
国际货物买卖合同是买卖双方根据各自都能接受的国际惯例或法律规定而设定的反映双方在交易磋商中的内容,规定双方的权利和义务的法律文件。一般来讲,一个有效的合同应具备以下几项基本要素()。
物业服务收费的标准发生变化时,物业管理企业应当在执行新标准前()个月公布收费标准。
任务型语言教学途径中,“任务”以意义和语言运用为主要导向。下列选项中,不是“任务”基本特点的是()。
梁先生一个人出去见马歇尔.司徒雷登的时候,总是带着我_______翻译。当时除梁先生外,罗隆基和陈达他们_______民盟国际关系委员会主任和宣传委员会主任的身份同外国人_______的机会更多,但马歇尔.司徒雷登对梁先生更加_______。
袁世凯同五国银行团签订《善后借款合同》,主要是为了()
Besidesactiveforeignenterprisesanda【C1】______numberofprivateemployers,aconsequentialnewdevelopmentwasthedevelopme
最新回复
(
0
)