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

VOA慢速英语20060124a

AGRICULTURE REPORT - Don't Know Much About Mulch?By George Grow Broadcast: Tuesday, January 24, 2006 I'm Faith Lapidus with the VOA Special English Agriculture Report. Mulch is important to farmers. M

VOA慢速英语2003年-农业与经济 Soil Conservation Meth

By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.

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

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

Snap Beans

By Mario Ritter Broadcast: October 21, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Snap beans possess the good qualities of other beans, but they may be less well known.

Mars Rover to Begin Taking Soil Samples This Week

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

北极冰带的融化将加速全球变暖进程

北极冰带的融化将加速全球变暖进程 DATE=2/16/01 TITLE=SPECIAL ENGLISH ENVIRONMENT REPORT - Arctic Permafrost Melting BYLINE=Cynthia Kirk （Start at 59

与美国小学生一起学英文第8册 第2期:针叶林

The Taiga 针叶林 The taiga is the forest in cold areas of the Earth. 针叶林是位于地球寒冷地区的森林。 We can find the taiga in Alaska, Russia, Canada, Finland and many other places. 阿拉斯加、俄罗斯、加拿大、芬兰和许

VOA慢速英语 2007 0403a

This is the VOA Special English Agriculture Report. Spreading mulch Mulch is important to farmers. Mulch is a protective cover of material that is spread on top of soil. It is usually made out of organic material, like crop waste. Farmers may keep t

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

美国国家公共电台 NPR Frozen Food Fan? As Sales Rise, Studies Show Frozen Produce Is As Healthy As Fresh

MARY LOUISE KELLY, HOST: Frozen food is having a moment. After years in a slump, sales of frozen and prepared foods are on the rise. They are often cheaper than fresh and can be more convenient. As NPR's Allison Aubrey reports, another upside of froz

VOA常速英语2008年-Rat Study Links Weight Gain to Artificial Sweet

By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide

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

AGRICULTURE REPORT - Mulch

AGRICULTURE REPORT - September 3, 2002: Mulch By George Grow This is Bill White with the VOA Special English AGRICULTURE REPORT. Mulching is one of the best things people can do for their plants. Mulc

运动休闲—溜冰 Skating

溜冰 Skating The oldest form of skate dates back to 20000 years B.C. 最早的溜冰形式可以追溯到公元前两万年. The first skating clubs and artificial rinks had begun springing up across

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

英语词汇辨析：soil & earth & land & ground

Soil、earth、ground和land都可以表示地面，但这四个词的用法有很大的区别。一起来看看吧! soil意为：泥土、土壤，尤指生长植物的土地。或国家、国土。 The trees have rooted in the rich soil. 树木在肥