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
Longer Lives for Wild Elephants Most people think of zoos as safe places for animals, where straggles such as difficulty fin
Longer Lives for Wild Elephants Most people think of zoos as safe places for animals, where straggles such as difficulty fin
admin
2012-09-10
57
问题
Longer Lives for Wild Elephants
Most people think of zoos as safe places for animals, where straggles such as difficulty finding food and avoiding predators don’t exist. Without such problems, animals in zoos should live to a ripe old age.
But that may not be true for the largest land animals on Earth. Scientists have known that elephants in zoos often suffer from poor health. They develop diseases, joint problems and behavior changes. Sometimes, they even become infertile, or unable to have babies.
To learn more about how captivity affects elephants, a team of international scientists compared the life spans of female elephants born in zoos with female elephants living outdoors in their native lands. Zoos keep detailed records of all the animals in their care, documenting factors such as birth dates, illnesses, weight and death. These records made it possible for the researchers to analyze 40 years of data on 800 African and Asian elephants in zoos across Europe. The scientists compared the life spans of the zoo - born elephants with the life spans of thousands of female wild elephants in Africa and Asian elephants that work in logging camps, over approximately the same time period.
The team found that female African elephants born in zoos lived an average of 16. 9 years. Their wild counterparts who died of natural causes lived an average of 56 years more than three times as long. Female Asian elephants followed a similar pattern. In zoos, they lived 18.9 years, while those in the logging camps lived 41.7 years.
Scientists don’t yet know why wild elephants seem to fare so much better than their zoo -raised counterparts. Georgia Mason, a biologist at the University of Girelph in Canada who led the study, thinks stress and obesity may be to blame. Zoo elephants don’t get the same kind of exercise they would in the wild, and most are very fat. Elephant social lives are also much different in zoos than in the wild, where they live in large herds and family groups.
Another finding from the study showed that Asian elephants born in zoos were more likely to die early than Asian elephants captured in the wild and brought to zoos. Mason suggests stress in the mothers in zoos might cause them to have babies that are less likely to survive.
The study raises some questions about acquiring more elephants to keep in zoos. While some threatened and endangered species living in zoos reproduce successfully and maintain healthy populations, that doesn’t appear to be the case with elephants. "Currently, zoos are net consumers of elephants ,not net producers. " Mason says.
Which of the following about the scientist’ study is NOT true? ______
选项
A、They kept detailed records of all the elephants in their care
B、They compared zoo elephants with wild elephants
C、They analyzed the records of 800 elephants kept in zoos
D、The zoo -born elephants they studied were kept in European zoos
答案
A
解析
本题有一定难度,带着题干信息词回文章定位,答案依据主要在文章第二段的第二句:Zoos keep detailed records of all the animals in their care,…所以,是Zoos,而不是Scientists kept detailed records of all the animals in their care,回来看选项,A项和原文句意不符,是答案。
转载请注明原文地址:https://kaotiyun.com/show/LqQd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
StanfordUniversity1StanfordUniversity,famousasoneofnorthernCalifornia’sseveralinstitutionsofhigherlearning,isso
A.hisgraduationfromamedicalschoolB.providemedicaleducationandconductresearchinmedicineC.providemedicalservi
DreamsStudiesshowthatindreamsthingsareseenandheardratherthatthought.Intermsofthesenses,visualexperience
TheMind-BodyConnectionsNormanCousinswasafamousAmericanmagazineeditor.In1964,hereturnedfromanoverseastripan
Thesefactorsinteractintimatelyandcannotbeseparated.
AGoalsBHistoryofWomen’sRightsMovementCStartofWomen’sRightsMovementDTraditionalStatusofWomenERightsofW
WaterFromthebeginning,waterhasfurnishedmanwithasourceoffoodandahighwaytotravelupon.Thefirst(51)arosewhere
Indonesiawasincrisisbecauseofthedrought.Theforestanimalshaven’tbeenaffectedbythesmog.
Heexpressedconcernthattheshipmightbeindistress.
Ourlivesareintimatelyboundupwiththeirs.
随机试题
关于角膜混浊,下列描述错误的是
【2009年第4题】题38~40:某企业变电站拟新建一条35kV架空电源线路,采用钢筋混凝土电杆、铁横担、钢芯铝绞线。请回答以下问题,并列出解答过程。在架空线力学计算中,下列关于导线比载的表述,哪一项是正确的?
【背景资料】某施工单位承包一套燃油加热炉安装的单位工程,包括加热炉、燃油供应系统、钢结构、工艺管线、电气动力与照明、自动控制、辅助系统等分部工程。项目部主管工程师编写了加热炉燃油泵等动力设备的单机试运行方案,并按规定进行了审批。燃油泵的进口管道焊缝要
上市公司股东大会就重大资产重组事项作出决议,必须经出席会议的股东所持表决权的()以上通过。
个人汽车贷款的特征不包括()。
甲股份有限公司为上市公司(以下简称“甲公司”),为了扩大生产规模,经研究决定,采用出包方式建造生产厂房一栋。2014年17月至12月发生的有关借款及工程支出业务资料如下:(1)7月1日,为建造生产厂房,从银行借入三年期的专门借款3000万元,年利率为7.
少数民族服饰中,男女均披“察尔瓦”和妇女披“披星戴月”披肩的分别是()。
对同一类型的问题寻找不同类型的答案可以培养学生具有()。
言而有信:言而无信:承诺
某广告经营公司某月份取得广告业务收入30万元,广告代理收入15万元,支付给某家工厂广告牌制作费8万元,支付给电视台广告发布费10万元,收取广告赞助费2万元。该公司当月应纳营业税为()万元。
最新回复
(
0
)