So next, the materials move to production. And what happens there is we use energy to mix toxic chemicals in with natural resources to make toxic contaminated products. There are over 100,000 synthetic chemicals in use in commerce today. Only a handf

发表于:2018-12-11 / 阅读(61) / 评论(0) 分类 英语解说豆知识2011年

One of the problems with trying to use less stuff is that sometimes we feel like we really need it. What if you live in a city like, say, Cleveland, and you want a glass of water? Are you going to take your chances and get it from the city tap? Or sh

发表于:2018-12-11 / 阅读(69) / 评论(0) 分类 英语解说豆知识2011年

The Australian dollar has hit parity with the US dollar for the first time since the Australian currency was floated. The new post-float high comes after a rally over recent months that's been fueled by growing expectations the Federal Reserve will p

发表于:2018-12-11 / 阅读(49) / 评论(0) 分类 澳洲ABC新闻快递2010年

The Opposition leader Tony Abbott has met the Indonesian president, but didn't raise his key policy of turning back asylum seeker boats. The country's foreign minster says it wasn't mentioned during Mr.Abbott's meeting with president Susilo Bambang Y

发表于:2018-12-11 / 阅读(44) / 评论(0) 分类 澳洲ABC新闻快递2012年

Speaking Snakes frighten me. Tony: Oh, Nancy, I am looking for you. Nancy: Well, Sherlock Holmes, youve just found me. Whats up? Tony: The Outdoor Club is going camping this weekend. Care to join us for an adventure? Nancy: I could be interested, but

发表于:2018-12-11 / 阅读(43) / 评论(0) 分类 新视野大学英语:视听说教程 2

Do you agree or disagree with the following statement? Many schools require young children (aged 5-11) to work together in a small group instead of working alone to learn man activities. Educators and researchers have never stopped the examination of

发表于:2018-12-19 / 阅读(58) / 评论(0) 分类 托福英语

This is Scientific American 60-second Science.I'm Steve Mersky.Got a minute? People have been leaving messages on bathroom walls for thousands of years,just google'ancient Roman bathroom graphy'.Well,we are not the only ones to use the ? for informat

发表于:2018-12-24 / 阅读(52) / 评论(0) 分类 2014年Scientific American(十)月

Pet turtles can be unsanitary. But Chinese soft-shelled turtles really up the ante on distasteful behavior. They perform a variation on urinationthrough their mouths. Most land-based vertebrates produce urine to get rid of water-soluble toxic waste,

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(十)月

For centuries, Prague has been a center of art, and home to great composers. Dvorak, Chopin and Tchaikovsky performed their best works here. Inspired by this musical heritage is Alexander Zoltan, who plays a less traditional instrument - the glass ha

发表于:2018-12-30 / 阅读(136) / 评论(0) 分类 国家地理2007年

AS IT IS 2016-01-11 Missing US Hellfire Missile Turns Up in Cuba 美国失踪的地狱之火导弹出现在古巴 U.S. officials are asking how a Hellfire missile used in a training mission in Europe has ended up in Cuba. 美国官员质询,在欧洲

发表于:2019-01-12 / 阅读(44) / 评论(0) 分类 2016年VOA慢速英语(一)月

A second Texas health worker has now fallen ill with Ebola. The women took a domestic flight a day before she was diagnosed. Health authorities are now trying to track down all 132 people who were on the flight with her. The woman and a fellow nurse

发表于:2019-01-19 / 阅读(42) / 评论(0) 分类 澳洲ABC新闻快递2014年

Let's take a look at the financial markets and the tumbled US amid those concerns the congress may not meet the dead line to raise the debt ceiling. A business editor Peter R says if the US does go off the fisical cliffs with risk sparking another re

发表于:2019-01-19 / 阅读(59) / 评论(0) 分类 澳洲ABC新闻快递2013年

Leading the news. Two men are due to face court today on terror charges relating to the murder of Sydney police employee Curtis Cheng. 18 year old Roban was accused of commissioning the execution carried out by teenager Farhad Jabar who was himself s

发表于:2019-01-19 / 阅读(51) / 评论(0) 分类 澳洲ABC新闻快递2015年

This is Scientific Americans 60-second science. I am Wayt Gibbs. Got a minute? A protein can tell us a suspicious spot. Is this benign along or cancer of a tumor? In the case of lung spots 4 and 5 turn behind us. Unfortunately, making that determinat

发表于:2019-01-20 / 阅读(55) / 评论(0) 分类 Scientific American(十)月

But back then, they had serious competition from the giant short-faced bear. The short-faced bears bone chemistry reveals it was a carnivore and up to a ton, probably the largest meat-eating mammal that ever walked the earth. On its long legs, it ran

发表于:2019-01-23 / 阅读(78) / 评论(0) 分类 探索与发现2012年

To stare into the void of a black hole, to tumble through space before disappearing forever within it, it's the prospect of catching that unique moment that explains the excitement of this year's events. What happens to matter once it's been swallowe

发表于:2019-01-23 / 阅读(83) / 评论(0) 分类 探索与发现2013年

If there's a black hole at the center of our galaxy, that's gonna force these objects that are really close to the black hole to move much faster than they would move if there were no black holes. So the first thing you wanted to see is there are ver

发表于:2019-01-23 / 阅读(36) / 评论(0) 分类 探索与发现2013年

Only 14 people have been rescued so far and 6 bodies have been recovered as rescue efforts continue after a passenger ship sank late Monday night, on a section of the Yangtze River in central China's Hubei province. Hundreds are still being searched

发表于:2019-02-03 / 阅读(97) / 评论(0) 分类 cctv9英语新闻2015年

1. The Senate was in session Sunday, but there is little to indicate a resolution is at hand for the partial government shutdown. Democrats criticized their Republican colleagues, accusing them of blocking attempts to find a compromise to end the bud

发表于:2019-02-11 / 阅读(142) / 评论(0) 分类 美联社新闻一分钟2013(十月)

I felt only a certain tightness in the joints of my fingers, and even this discomfort soon disappeared. 我仅仅觉得手指不能灵活使用,但这种困难情况不久也就消失。 As for the exhaustion bound to accompany a two-hour stroll in

发表于:2019-02-25 / 阅读(60) / 评论(0) 分类 《海底两万里》中英双语有声读物