2007年NPR美国国家公共电台一月-A Broken Foot, an Artificial Leg, and a R

Recording technology has changed a lot over the years, but you can still do one essential thing. You sit in front of a microphone and you tell a story, which here we are again this Friday morning because it's time for StoryCorps. It's an oral history

创新英语-Scientists Create Energy-Making Artificial Leaf

Scientists at the Massachusetts Institute of Technology (MIT) have created what could be a breakthrough in providing clean, alternative energy. Researchers have invented an artificial leaf that splits water into hydrogen and oxygen and stores the ene

初中英语人教版初三年级上册22

[00:15.99]UNDER THE SEA [00:20.53]Not too long age,people couldn't go scuba diving on Hainan Island, [00:29.57]or anywhere else. [00:33.02]This was because there was no machine [00:38.06]allowing a person to breathe under water for a long time. [01:3

初中英语人教版初三年级上册20

[00:29.39]Joy,how was your holiday? [00:40.75]I had a great time. [00:50.60]Could you tell me what you think about hainan Island? [00:55.93]Our family is going on holiday soon,and we're also thinking about going there. [01:31.30]Oh,if you get a chanc

VOA标准英语2015--Researchers Create Artificial Skin With Sense of Touch

Researchers Create Artificial Skin With Sense of Touch Scientists have recently made considerable gains in creating human-like artificial limbs, but they still look and feel artificial. That could change with a development from South Korea. Researche

国家地理-2008-05-08 Coral Reefs 岌岌可危的珊瑚礁

The waves of these azure seas hide an abundant treasure. Below the waves, coral reefs provide a habitat for teeming life, a life with a kaleidoscope of color. In oceans around the world, clear and well-circulating waters encourage corals to anchor a

60秒科学:Artificial Muscle Brings Back Blink

Artificial Muscle Brings Back Blink A study in the Archives of Facial Plastic Surgery reports the development of an artificial muscle system that could restore the ability to blink to stroke and injury patients. Cynthia Graber reports Most of us blin

Atlas Shows Coral Reefs Shrinking Fast

By Rosanne Skirble Coral reefs are home to the greatest diversity of plant and animal life found in any habitat, anywhere on the earth. But, while they are found in 101 countries and territories, the

VOA标准英语2008年-Report: One Third of World's Coral Reefs Could

Experts say one-third of the oceans' coral reefs face extinction by the middle of the century if nothing is done to save them. The reefs are home to a vast array of sea creatures, which experts say would also be endangered by the loss of the reefs.

VOA慢速英语2012 Explorations - Travel Industry, Fisheries Depend on Threatened Coral Reefs

Explorations - Travel Industry, Fisheries Depend on Threatened Coral Reefs MARIO RITTER: Welcome to Explorations in VOA Special English. Im Mario Ritter. This week, we hear from a prize-winning expert on bees. May Berenbaum has studied ways to help p

VOA慢速英语2014 AS IT IS 2014-05-08 Climate Change Destroys Coral Reefs 气候改变毁坏珊瑚礁

AS IT IS 2014-05-08 Climate Change Destroys Coral Reefs 气候改变毁坏珊瑚礁 Hello, my friends, and welcome back as we work together to improve your American English. Im Jim Tedder in Washington. Today we will learn more about our changing cli

Artificial Leaf Turns Sunlight into Electric Power

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

VOA标准英语2011--Artificial Blood Vessels Work Well, Have

Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

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The waves of these azure seas hide an abundant treasure. Below the waves, coral reefs provide a habitat for teeming life, a life with a kaleidoscope of color. In oceans around the world, clear and well-circulating waters encourage corals to anchor an

美国国家公共电台 NPR Gulf Oyster Reefs Are Hurting. Now There's Help From Oil Spill Aid Money

DAVID GREENE, HOST: Oyster harvests along the Gulf Coast have been in decline for decades now. Actually, this year, Alabama canceled its season because there were so few oysters. NPR's Greg Allen reports that help may be on the way thanks to millions

学个词Learn a Word 第1713-artificial

今天我们要学的词是 artificia。Artificial 人造的。artificial intelligence 人工智能。不久前，The FDA approved a new artificial retina device that would help some people regain part of their sight. 美国食品和药物管理局批准

VOA标准英语2010年-Coral Reefs Breed New Species, Fossil

When we lose reefs, we lose basically the cradles of evolution in the oceans. Wolfgang Kiessling A new study out this week highlights the role that coral reefs play in evolution, adding another reason to preserve these delicate, diverse, and often be

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China has warned the United States to stop provocative actions or risk causing an accident after a US military plane flew over part of the South China Sea. Foreign Ministry Spokesperson Hong Lei made the remarks at a routine press conference on Frida

VOA标准英语2011--Artificial Speech Mimics Real Thing

Artificial Speech Mimics Real Thing 合成声音发展渐入佳境 未来虚拟声音真假难辨 At a University of Arizona laboratory, Professor Brad Story analyzes the voices of singers, actors and public speakers both live and on audio tape. 在亚

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Environmental policy 环保政策 Reefer madness 珊瑚礁化狂热 Turning oil rigs into reefs saves money and marine life. Yet many greens oppose it 石油钻塔变成群礁，既可以省钱，又可以拯救海洋生命。然而，许多绿色环保