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、Monkeys have a shorter life than other animals. B、People who eat less may enjoy a longer life. C、Humans are more likely to fal
A、Monkeys have a shorter life than other animals. B、People who eat less may enjoy a longer life. C、Humans are more likely to fal
admin
2014-09-30
27
问题
(20)A study of monkeys over a 20-year period suggests that eating less may extend life and prevent disease. American researchers said they believe their findings could apply to people as well. Richard and his team did the research. Half of the monkeys were permitted to eat as much as they wanted. The other half ate a controlled diet. They were fed 2/3 of the calories they would otherwise choose to eat. The researchers found that 37% of the monkeys that ate as much as they wanted had died of causes related to aging after 20 years. In comparison, only 13% of the monkeys on restricted diets had died. On average, monkeys live about 27 years in captivity, that is, when they live with humans and not in the wild. Richard says researchers do not know why reducing calories increases the length of life. But they believe there is a helpful change in the way the body processes energy in the monkeys that eat fewer calories. Extended life was not the only observable difference between the two groups. The monkeys that ate less had half the amount of heart disease and cancer. The study was paid for by the US National Institute on Aging.(21)Some critics say more research is needed to prove that calorie restriction extends life in monkeys. Richard says his study is not complete and that his team will continue to observe the remaining monkeys throughout their lives. Scientists first studied the effects of calorie restriction on aging in the 1930s. Since then, similar studies have shown life-extending effects of reduced diets on rodents(啮齿动物)and worms. Scientists are currently studying the effects of restricted diets on people.(22)However, this is more difficult because it is harder to control the diets of people and because they live longer than other animals.
20. What can we learn from the study?
21. What needs to be done according to some critics?
22. Why is it hard to study the effects of restricted diets on people?
选项
A、Monkeys have a shorter life than other animals.
B、People who eat less may enjoy a longer life.
C、Humans are more likely to fall ill.
D、Eating habit is decisive to one’s health.
答案
B
解析
短文开头提到研究者们通过对猴子的研究发现控制饮食会延长寿命,也有利于预防疾病,同时指出研究者们认为这一发现同样适用于人类。由此推断,控制饮食会使人类延长寿命。
转载请注明原文地址:https://kaotiyun.com/show/nQm7777K
0
大学英语六级
相关试题推荐
IntotheUnknownTheworldhasneverseenpopulationageingbefore.Canitcope?[A]Untiltheearly1990snobodymu
A、Difficulttosatisfyandfullofdemands.B、Politebutreluctanttospendmoney.C、Considerate,andlovinghismother.D、Good
A、Itwasmisleading.B、Itwasratherboring.C、Itwasenjoyable.D、Itwasjustso-so.C女士说她以前从未听过如此有趣的演讲,男士说Yes,wasn’titmarvel
北京大学于1898年在北京成立,原名为京师大学堂(theImperialUniversityofPeking)。该大学的成立标志着中国近代史上高等教育的开始。在中国近代史上,它是进步思想的中心,对中国新文化运动、五四运动及其他重要事件的发生颇有影响
A、Apoetrybook.B、Ahistorybook.C、Amysterybook.D、Somechildrenstories.C男士说,你的诗歌书可能让你富有,但我想这本75美分的侦探小说更值得买。C正确。
Apioneeringheadteacheriscallingforallsecondaryschoolstofollowhisleadandstartclassesat11am,allowingteenagers
Today,moreandmorepeopleintheUnitedStatesareusingcreditcardsinsteadofmoneytobuythethingstheyneed.Almostany
Foranyonewhohashadtowaitalongtimetoscheduleamedicalappointment,itmightseemasiftheworldneedsmoredoctors,
A、Thewomanneedsatemporaryreplacementforherassistant.B、Themanworksinthesamedepartmentasthewomandoes.C、Thewom
HarpsealsfromCanadaareshowingupintheUSwatersingreaternumbersandfarthersouththanusual,andbiologistswanttok
随机试题
企业职工一方与用人单位签订的有关女职工权益保护、工资调整机制的合同,属于专项集体合同。()
简述农村健康教育的主要内容。
下列可引起金属音调咳嗽的是
男,72岁。上下牙全部缺失,下颌弓明显宽于上颌弓,余未见异常对后牙数目的正确处理方法为
A.外痔B.内痔C.混合痔D.直肠脱垂E.环形痔排便时脱出肛门,需手推才能还纳的圆形肿物是
未成年人若要实行人工流产手术,有权签署手术同意书的人是
下列有关分部分项工程量清单编制的表述,正确的是()。
以下说法不正确的是()。
我国最早在现代意义上使用“课程”这一术语的教育家是_________。
A、Barbican.B、St.John’sWood.C、Morgan’sWalk.D、Battersea.AJamesMilligan介绍了四个目前最风靡的居住地,并提到喜欢夜晚安静的人们更倾向于选择Barbican。因此答案为A)。
最新回复
(
0
)