对于每一个准备考雅思的同学来说，阅读一定的原汁原味的英语文章对于提升雅思考试分数是非常有帮助的，那么今天就和出国留学网的小编一起来看看雅思阅读材料：动物也爱跑步机。
For the experiment， the wheels were enclosed so that small animals could come and go but so that larger animals could not knock them over. Dr. Meijer set up motion sensors and automatic video ral years and 12，000 snippets of video later， she and Yuri Robbers， also a Leiden researcher， reported the results. They were released online Tuesday in the Proceedings ofthe Royal Society B.
为了进行试验，跑轮被围了起来，这样小动物就能来去自由，大动物则无法把它们撞翻。梅杰安放了运动传感器和自动摄影机。她和同为莱顿研究人员的尤里·罗伯斯（Yuri Robbers）报告称，几年后，他们获得了1.2万个视频片段。周二，这些结果被公布在了《英国皇家学报B》（Proceedingsof the Royal Society B.）的网站上。
【经典句式】
experiment试验
enclose封闭
knock… over 撞翻
setup 安装；设置
motionsensor运动传感器
automatic自动的
video camera摄影机
release发布
Gene D. Block， chancellor of the University of California， Los Angeles， was not involved with the paper but knows Dr. Meijer and had seen the wheel set up in hergarden. He said the study made it clear that wheel-running is “some type of rewarding behavior” and“probably not driven bystress or anxiety.”
加州大学洛杉矶分校校长吉恩·D·布洛克（Gene D. Block）与这篇论文无关，但是他认识梅杰，而且还见过她在花园里放置的跑轮。他说，研究表明在跑轮上跑步是“一种有益的行为”，“可能不是出于压力或焦虑”。
【经典句式】
chancellor校长
setup安装；设置
rewarding有回报的
be driven by 出于
stress压力
anxiety焦虑
Mice accounted for 88 percent of thewheel-running events， and spent one minute to 18 on the wheel. The otheranimals each accounted for less than 1 percent. Frogs， though there were very few， were seen to get on the wheel， get off and get back on.
在所有在跑轮上跑步的动物中，小鼠占了88%，在跑轮上花费的时间为1到18分钟。其他每种动物所占的比例不到1%。虽然数量不多，但是我们也看到青蛙爬上跑轮，爬下来，然后又爬回去。
【小作文数据表达】
… account for xx percent of … ……占……的xx%
Russell Foster， a circadian rhythm researcher at Oxford University， said he read the paper and sent it out to other scientists on behalfof the Proceedings and was delighted when peer reviews from other scientists were positive.
罗素·福斯特（Russell Foster）是牛津大学（Oxford University）的一名生理节律研究员。他说他读过这篇论文，并代表《英国皇家学报B》把它发给了其他科学家。其他科学家都对此持肯定态度，这让他感到高兴。
【经典句式】
on behalf of代表
delighted高兴的
peer review同行评审
Marc Bekoff， a professor of ecology and evolutionary biology at the University of Colorado who is active in the animal welfare movement， said in an email thathe thought the paper did show that wheel-running could be a “voluntary activity，” but that mice in labs may be doing more of it because of the stress of confinement.
马克·贝科夫（Marc Bekoff）是科罗拉多大学（University of Colorado）的一名生态学和进化生物学教授，积极参与动物福利运动。他在电子邮件中说，他认为这篇论文的确表明跑轮运动可能是一种“自愿活动”，但是实验室的老鼠可能会因为禁闭的压力而进行更多跑轮运动。
【经典句式】
ecology生态学
evolutionary biology进化生物学
animal welfare movement动物福利运动
voluntary自愿的
stress压力
confinement限制
“Wild bears will often pace back and forth，” he wrote， “but in captivity， the rate of doing it seems to be greatly heightened.”
“野熊经常会来回踱步，”他写道，“但是如果被关起来，他们踱步的频率似乎就会大幅度增加。”
【经典句式】
pace踱步；速度
in captivity圈养
rate速度；比例
heighten提高；增强
Asto why the mice， frogs or perhaps even slugs run， ormove， on the wheel， Dr. Meijer said she thought that “there is an intrinsic motivation for animals， or should I say organisms，to be active.”
至于为什么小鼠、青蛙或者甚至连蛞蝓都会在跑轮上跑步或移动，梅杰说她认为“动物——或者应该说生物——天生想要保持活跃”。
【经典句式】
asto至于
intrinsic固有的
motivation动机
intrinsic motivation内在动机
organism生物
Huda Akil， co-director of the Molecular and Behavioral Neuroscience Institute at the University of Michigan， who hasstudied reward systems， said： “It’s not a surprise. All you have to do is watch a bunch of little kids in a playground or a run and run and run.”
研究过奖励机制的密歇根大学（University of Michigan）分子和行为神经研究中心（Molecular and Behavioral Neuroscience Institute）主任胡达·阿基勒（HudaAkil）说：“这并不意外。你需要做的就是看一群小孩在操场或公园里玩耍。他们会跑啊，跑啊，一直跑。”
【经典句式】
reward回报；奖励
a bunch of一堆
playground操场
Dr. Akil said that in humans， running activates reward pathways in thebrain， although she pointed out that there are innate differences in temperament in all sorts of animals， including humans. Ratsthat do not like to run can be plenty of people do all they can to avoid jogging，cycling and elliptical machines.
阿基勒说，在人类身上，跑步运动可以激活大脑里的奖赏回路，虽然她指出各种各样的动物的秉性都存在固有的不同，人类也是如此。可以培育出不爱跑的大鼠。而极尽可能地避免慢跑、骑车和玩椭圆机的人类也多得是。
【经典句式】
activate激活
reward pathway奖赏回路
innate固有的
temperament性格；气质
all sorts of各种各样的
breed-bred- bred 繁殖；培育
plenty of很多的；足够的
jogging慢跑
cycling骑自行车
elliptical machine椭圆机
Presumably， the same is true of wild mice. While some were setting the wheel on fire with their exertions， others， out of camera range， may have been sprawled out on the mouse equivalent of a lounge chair， shaking their whiskers in dismay and disbelief.
对野鼠而言也应是如此。虽然有些老鼠正在跑轮上奋力奔跑，但是那些在摄像机覆盖范围之外的老鼠，可能正摊开手脚躺在老鼠版的休闲椅上，惊恐地或难以置信地抖着胡须。
【经典句式】
presumably应该，表推测
set… on fire 使着火
exertion发挥；运用；努力
out of range在范围之外
sprawl蔓延
sprawl out摊开手脚躺
equivalent等同物
lounge chair休闲椅
whisker胡须
dismay沮丧；惊慌
disbelief难以置信
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