By Gary Garriott Broadcast: November 3, 2003 This is Steve Ember with the VOA Special English Development Report. People have been recycling metals for hundreds of years. Today, re-using metal waste o

发表于:2018-12-01 / 阅读(210) / 评论(0) 分类 VOA2003(下)-发展与科学

And the Athabasca River drains downstream 阿萨帕斯卡尔河下游 to a range of Aboriginal communities. 即原住民聚集地 In Fort Chippewa, the 800 people there, 奇普怀恩堡有800位居民 are finding toxins in the food chain, 食物链中含

发表于:2018-12-08 / 阅读(54) / 评论(0) 分类 TED演讲娱乐篇

This is the VOA Special English Agriculture Report. Farmers in the United States sometimes plant switchgrass as a border crop. But could this tall grass lower the nation's dependence on foreign oil? South Dakota State University professor Arvid Boe

发表于:2018-12-15 / 阅读(46) / 评论(0) 分类 VOA慢速英语2008年(二)月

This is Scientific Americans 60-SecondScience. Im John Matson, got a minute? Say you need a diamond. You could go downto the jeweler, or you could put some carbon deep underground and let it sitfor a couple billion years. Or you could hop in a starsh

发表于:2018-12-24 / 阅读(60) / 评论(0) 分类 Scientific American(八)月

> 58 菌类植物产生于几十亿年前 DATE=8/24/01 TITLE=ENVIRONMENT REPORT - Early Plant Study BYLINE=Cynthia Kirk (Start at 1’00” )This is Bill White with the VOA Special English ENVIRONM

发表于:2019-01-02 / 阅读(122) / 评论(0) 分类 自然探索

Coffee to Help Power London's Buses This is Whats Trending Today Britain has long been known for its love of tea, but people in London also drink a lot of coffee. In fact, the average Londoner reportedly drinks 2.3 cups of coffee every day. And now,

发表于:2019-01-03 / 阅读(85) / 评论(0) 分类 2017年VOA慢速英语(十一)月

为实现自己的留学之梦,无数学生默默地在GRE考试中付出自己辛勤的汗水。所有GRE高分故事背后都有值得我们学习的GRE备考经验。相信这样的一个个GRE高分故事能够在你备考GRE考试的过程中送

发表于:2019-01-03 / 阅读(67) / 评论(0) 分类 GRE英语

A woman answered her front door and found two boys holding a list.

发表于:2019-01-03 / 阅读(204) / 评论(0) 分类 英汉幽默故事选读

It seemed like a good ideabecause rivers and ponds in Bangladesh were contaminated with bacteria, Bangladeshis switched to wells. But soon after, in the early 80s, researchers realized those wells were harming Bangladeshis with a new poisonarsenic. T

发表于:2019-01-08 / 阅读(80) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Chemistry goes to the University of Delawares Richard Heck, Purdues Ei-ichi Negishi and Hokkaido Universitys Akira Suzuki for their work in develop

发表于:2019-01-08 / 阅读(97) / 评论(0) 分类 Scientific American(十)月

By Carol Pearson Washington, DC 08 November 2006 watch Heart Stent report Heart stents are lifesaving medical devices that help prevent heart attacks. Most of these stents are coated with various drugs, but mounting data suggest drug-coated stents c

发表于:2019-02-03 / 阅读(130) / 评论(0) 分类 2006年VOA标准英语(十一月)

Business 商业报道 Companies and emissions 企业使命 Carbon copy 复写本 Some firms are preparing for a carbon price thatwould make a big difference 一些公司准备使用碳价 这将带来极大的转变 THE marketsfor CO2 have had about

发表于:2019-02-05 / 阅读(49) / 评论(0) 分类 经济学人商业系列

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(80) / 评论(0) 分类 英语新闻

The twilight zone refers to the area between 100 and 1000 metres deep where a small amount of sunlight can still penetrate. The region is packed with ocean life that plays a key role in keeping atmospheric carbon-dioxide levels 30-percent lower than

发表于:2019-02-08 / 阅读(51) / 评论(0) 分类 英语新闻

Nearly a year after the global financial crisis peaked, an economic stimulus program that Australia says was key in easing its recession, is getting attention and praise. The program is aimed at energy efficiency and has even had an impact on jobs in

发表于:2019-02-12 / 阅读(78) / 评论(0) 分类 VOA标准英语2010年(二月)

Rather than restate every one, scientists decided to keep the inaccurate constant. Thus, Tim Flannery notes, every raw radiocarbon date you read today is given as too young by around 3 percent. The problems didn't quite stop there. It was also quickl

发表于:2019-02-17 / 阅读(60) / 评论(0) 分类 万物简史

There was a story in the newspapers recently about a couple called John and Ann Till. They live near a town called Petersfield in south-east England, and earlier this year they got married. They wanted to go on a honeymoon to the United States after

发表于:2019-02-19 / 阅读(105) / 评论(0) 分类 听播客学英语

Science and technology 科学技术 Lifts and skyscrapers 电梯和摩天大楼 The other mile-high club 另一个高耸入云的俱乐部 A new lightweight lift cable will let buildings soar ever upward 一种新型的轻型升降梯将会让建筑继

发表于:2019-02-24 / 阅读(104) / 评论(0) 分类 经济学人科技系列

One of the oddities of our solar system is that the Sun burns about 25 percent more brightly now than when the solar system was young. 现在太阳燃烧的旺度,要比太阳系形成之初强了大约25%,这是我们太阳系的怪事之一。

发表于:2019-02-25 / 阅读(56) / 评论(0) 分类 万物简史

日前,中美两国发表《气候变化联合声明》,重申坚信气候变化是人类面临的最重大挑战之一,就推动全球经济向低碳转型做出切实行动。 请看《中国日报》报道: China plans to launch a national

发表于:2019-03-11 / 阅读(130) / 评论(0) 分类 英文语法词汇