零起点英文启蒙Earlyreads系列 Zed the Magician 04

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

零起点英文启蒙Earlyreads系列 Zed the Magician 01

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

零起点英文启蒙Earlyreads系列 Zed the Magician 02

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

零起点英文启蒙Earlyreads系列 Zed the Magician 03

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

零起点英文启蒙Earlyreads系列 Zed the Magician 05

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

零起点英文启蒙Earlyreads系列 Zed the Magician 06

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

零起点英文启蒙Earlyreads系列 Zed the Magician 07

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

零起点英文启蒙Earlyreads系列 Zed the Magician 08

零起点英文启蒙Blackcat黑猫出版社Earlyreads系列29本 （ PDF文本下载 ） 更多儿童英语： 哈哈美语 棒棒学英语

SSS 2011-04-20

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

SSS 2010-03-26

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

SSS 2010-01-19

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

名人轶事:Cesar Chavez Organized the First Successful Farm Worker

Cesar Chavez Organized the First Successful Farm Workers Union in America Written by Robert Brumfield (MUSIC) VOICE ONE: Im Nicole Nichols. VOICE TWO: And Im Steve Ember with the VOA Special English Program, People in America. Today we tell about one

60秒科学:冬暖夏凉的屋顶

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

SSS 2008-09-01

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

SSS 2011-02-07

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

SSS 2011-04-06

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

VOA慢速英语--研究人员研发完全可降解轮胎

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

VOA标准英语2016--“智能”绷带有助更快治愈伤口

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

学个词Learn a Word 第300期 Authorized

今天我们要学的词是, authorized。 Authorized, 是指经过授权的。An authorized agent, 就是授权代理。最近，美国联邦政府把伊利诺伊州政府告上了法庭。The state wants to bar employers from using a federal databa

2006年VOA标准英语-Paralyzed Man Operates Computer, TV Just by Thi

By David McAlary Washington 13 July 2006 We often hear that imagining something will not make it so. But scientists have now overturned that adage, making a science-fiction dream come true. U.S. researchers have shown that a paralyzed patient can us