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 2011-08-26

时间:2011-09-05 06:27来源:互联网 提供网友:gmeng   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-SecondScience, I’m Christopher Intagliata. Got a minute?

 
Historians have speculated for years thatglobal environmental changes caused some ancient wars to erupt, or evensocieties to collapse1. Such connections may still exist—because new researchfinds that the risk of civil war in tropical countries increases during hot,dry El Nino years as opposed to cooler La Nina periods. The study is in the journal Nature.
 
Researchers used a database of global conflicts over the last six decades,which included clashes resulting in at least 25 deaths in battle. They comparedthose data to the three- to seven-year cycling of El Nino. And they found thatthe risk of conflict doubled during El Nino years—but only in tropicalcountries most affected2 by the climate cycle. El Nino may have played a role inspurring a fifth of the 234 conflicts studied.
 
This study can’t determine a cause. But the researchers say hot El Ninoconditions can diminish harvests, causing food shortages and sparkingconflicts. And since El Nino can be predicted up to two years in advance,governments and NGOs might be better able to plan for the possibility of acivil war.
 
Thanks for the minute. For ScientificAmerican’s 60-Second Science, I’m Christopher Intagliata.

点击收听单词发音收听单词发音  

1 collapse aWvyE     
vi.累倒;昏倒;倒塌;塌陷
参考例句:
  • The country's economy is on the verge of collapse.国家的经济已到了崩溃的边缘。
  • The engineer made a complete diagnosis of the bridge's collapse.工程师对桥的倒塌做了一次彻底的调查分析。
2 affected TzUzg0     
adj.不自然的,假装的
参考例句:
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
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  托福素材
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