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 2008-04-08

时间:2010-05-13 06:31来源:互联网 提供网友:0922013129   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)

This is Scientific American’s 60-Second Science, I am Cynthia Graber. This will just take a minute.

Western Mexico and countries on the west coast of South America had ancient relationships, involving trade in goods and culture. Now MIT students have analyzed1 just how this communication and transportation system worked. The study was published in the journal of Anthropological2 Research. First, the students recreated a raft, based on descriptions in European colonial writings. They successfully tested it on Boston’s Charles river. Then the students used computerized engineering design programs to test the raft size, weight, and cargo3 capacity. They had to develop a much more detailed4 design for the raft’s dimensions and what was available in the centuries-old drawings. But they didn’t stop at aerodynamics and hydrodynamics, they also delved5 into biology. Because shipworms can make a quick snack of South American balsa wood. A one way voyage would take between six and eight weeks.  So how long would a raft last on the journey before succumbing6 to shipworms? According to the students’ simulations, rafts could last two full round trips between Mexico and Indian countries, enough time for a vibrant7 exchange of goods and ideas.

 

Thanks for the minute for Scientific American’s 60-second Science. I am Cynthia Graber.

 


点击收听单词发音收听单词发音  

1 analyzed 483f1acae53789fbee273a644fdcda80     
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
参考例句:
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
2 anthropological anthropological     
adj.人类学的
参考例句:
  • These facts of responsibility are an anthropological datums- varied and multiform. 这些道德事实是一种人类学资料——性质不同,形式各异。 来自哲学部分
  • It is the most difficult of all anthropological data on which to "draw" the old Negro. 在所有的人类学资料中,最困难的事莫过于“刻划”古代的黑人。 来自辞典例句
3 cargo 6TcyG     
n.(一只船或一架飞机运载的)货物
参考例句:
  • The ship has a cargo of about 200 ton.这条船大约有200吨的货物。
  • A lot of people discharged the cargo from a ship.许多人从船上卸下货物。
4 detailed xuNzms     
adj.详细的,详尽的,极注意细节的,完全的
参考例句:
  • He had made a detailed study of the terrain.他对地形作了缜密的研究。
  • A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
5 delved 9e327d39a0b27bf040f1693e140f3a35     
v.深入探究,钻研( delve的过去式和过去分词 )
参考例句:
  • She delved in her handbag for a pen. 她在手提包里翻找钢笔。
  • He delved into the family archives looking for the facts. 他深入查考这个家族的家谱以寻找事实根据。 来自《简明英汉词典》
6 succumbing 36c865bf8da2728559e890710c281b3c     
不再抵抗(诱惑、疾病、攻击等)( succumb的现在分词 ); 屈从; 被压垮; 死
参考例句:
  • Mrs. Smith washed and ironed clothes for him, succumbing to him. 史密斯太太被他迷住了,愿意为他洗衣烫衣。
  • They would not in the end abandon their vital interests by succumbing to Soviet blandishment. 他们最终决不会受苏联人的甜言蜜语的诱惑,从而抛弃自己的切身利益。
7 vibrant CL5zc     
adj.震颤的,响亮的,充满活力的,精力充沛的,(色彩)鲜明的
参考例句:
  • He always uses vibrant colours in his paintings. 他在画中总是使用鲜明的色彩。
  • She gave a vibrant performance in the leading role in the school play.她在学校表演中生气盎然地扮演了主角。
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  description
顶一下
(1)
100%
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