英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

SSS 2010-02-12

时间:2010-05-20 02:59来源:互联网 提供网友:mark@li   字体: [ ]
特别声明:本栏目内容均从网络收集或者网友提供,供仅参考试用,我们无法保证内容完整和正确。如果资料损害了您的权益,请与站长联系,我们将及时删除并致以歉意。
    (单词翻译:双击或拖选)

It’s good to keep on your toes. Metaphorically1, that is. Not when you’re actually out for a stroll. Because a new study suggests that it takes nearly twice as much energy to walk on your toes than it does to land on your heel.

 

Humans are among a small handful of animals that tend to strut2 heel-to-toe. Chimps3 and other apes do it, as do bears. But most critters bounce on the balls of their feet—think cats and dogs—while others trot4 on their toes, like horses and deer.

 

To find out whether our gait gives us any advantages, scientists asked 27 volunteers to walk on a treadmill5 all three ways: heel-first, ball-of-the-foot first, or up on tippy toes. The participants also wore face masks that enabled the researchers to measure their oxygen consumption. The results: the subjects walking on the balls of their feet, in addition to looking ridiculous, expended6 50 percent more energy. The ones prancing7 on their toes needed 83 percent more energy. The study is in the Journal of Experimental Biology.

 

The bottom line: landing on our heels provides more leverage8 and limits energy losses to the ground. And does not look like a tribute to classic Monty Python.

 


点击收听单词发音收听单词发音  

1 metaphorically metaphorically     
adv. 用比喻地
参考例句:
  • It is context and convention that determine whether a term will be interpreted literally or metaphorically. 对一个词的理解是按字面意思还是隐喻的意思要视乎上下文和习惯。
  • Metaphorically it implied a sort of admirable energy. 从比喻来讲,它含有一种令人赞许的能量的意思。
2 strut bGWzS     
v.肿胀,鼓起;大摇大摆地走;炫耀;支撑;撑开;n.高视阔步;支柱,撑杆
参考例句:
  • The circulation economy development needs the green science and technology innovation as the strut.循环经济的发展需要绿色科技创新生态化作为支撑。
  • Now we'll strut arm and arm.这会儿咱们可以手挽着手儿,高视阔步地走了。
3 chimps 2a09048610e52de775e2fe426c063f06     
(非洲)黑猩猩( chimp的名词复数 )
参考例句:
  • Chimps are too scarce, and too nearly human, to be routinely slaughtered for spare parts. 黑猩猩又太少,也太接近于人类,不可以作为人器官备用件说杀就杀。 来自英汉非文学 - 生命科学 - 医学的第四次革命
  • And as nonprimates, they provoke fewer ethical and safety-related concerns than chimps or baboons. 而且作为非灵长类,就不会产生像用黑猩猩或狒狒那样的伦理和安全方面的顾虑。 来自英汉非文学 - 生命科学 - 医学的第四次革命
4 trot aKBzt     
n.疾走,慢跑;n.老太婆;现成译本;(复数)trots:腹泻(与the 连用);v.小跑,快步走,赶紧
参考例句:
  • They passed me at a trot.他们从我身边快步走过。
  • The horse broke into a brisk trot.马突然快步小跑起来。
5 treadmill 1pOyz     
n.踏车;单调的工作
参考例句:
  • The treadmill has a heart rate monitor.跑步机上有个脉搏监视器。
  • Drugs remove man from the treadmill of routine.药物可以使人摆脱日常单调的工作带来的疲劳。
6 expended 39b2ea06557590ef53e0148a487bc107     
v.花费( expend的过去式和过去分词 );使用(钱等)做某事;用光;耗尽
参考例句:
  • She expended all her efforts on the care of home and children. 她把所有精力都花在料理家务和照顾孩子上。
  • The enemy had expended all their ammunition. 敌人已耗尽所有的弹药。 来自《简明英汉词典》
7 prancing 9906a4f0d8b1d61913c1d44e88e901b8     
v.(马)腾跃( prance的现在分词 )
参考例句:
  • The lead singer was prancing around with the microphone. 首席歌手手执麦克风,神气地走来走去。
  • The King lifted Gretel on to his prancing horse and they rode to his palace. 国王把格雷特尔扶上腾跃着的马,他们骑马向天宫走去。 来自辞典例句
8 leverage 03gyC     
n.力量,影响;杠杆作用,杠杆的力量
参考例句:
  • We'll have to use leverage to move this huge rock.我们不得不借助杠杆之力来移动这块巨石。
  • He failed in the project because he could gain no leverage. 因为他没有影响力,他的计划失败了。
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎点击提交分享给大家。
------分隔线----------------------------
TAG标签:   SSS  bounce
顶一下
(0)
0%
踩一下
(0)
0%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴