Old Fashioned Ice Cream Makers Have you ever seen an old-fashioned ice cream maker? Nestled inside the wooden bucket, theres a metal canister with a hand crank on top. Cranking the handle scrapes the sweet, creamy mixture from the sides of the metal

发表于:2018-12-05 / 阅读(74) / 评论(0) 分类 英语听力文摘 English Digest

The Future Of Males Have you ever heard predictions that one day women will be able to have babies without men? It turns out that some species of the Whiptail lizard have figured out how to do this and completely eliminated the male sex. Females Clon

发表于:2018-12-05 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest

What Causes Altitude Sickness? Anyone who has vacationed in the higher elevations of Colorado, such as Vail and Estes Park, will tell you altitude sickness can be a real problem. Loss of appetite, nausea, vomiting, weakness, dizziness, and difficulty

发表于:2018-12-05 / 阅读(75) / 评论(0) 分类 英语听力文摘 English Digest

The Science Of Acne Acne: the scourge of adolescence. Most people endure it at some point, and cant wait to be rid of the combination of whiteheads, blackheads, pimples, and pustules that comprise the skin condition that affects over 80% of teenagers

发表于:2018-12-05 / 阅读(67) / 评论(0) 分类 英语听力文摘 English Digest

Nick:Hi everybody, this is Nick. Welcome to teaching series how do you say this in American English. Nick:大家好,我是Nick. Brad:大家好,我是Brad Nick:今天我们要讲的是中国老师非常非常常说的一句话叫做,你们呀下课

发表于:2018-12-28 / 阅读(82) / 评论(0) 分类 全网最酷美语怎么说

How Insects Fight Bacteria And Parasites Imagine that youre an insect, and that youve fallen ill because some bacteria or parasites have invaded your body. If you want to make it to a ripe old bug age, your body will need to fight off these invaders.

发表于:2018-12-31 / 阅读(84) / 评论(0) 分类 英语听力文摘 English Digest

Math Hurts My Brain Why? Its time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Im not a math person. In fact, anytime I have to deal with numbers, let alone solve an actual math problem??which, thankful

发表于:2018-12-31 / 阅读(67) / 评论(0) 分类 英语听力文摘 English Digest

Do Colors Have Smells? Have you ever heard the color blue? Or tasted the musical note F-sharp? For most people, in both cases the answer is no. But for some people blue has a particular sound or shape, and F sharp has a slightly sour taste. This unus

发表于:2018-12-31 / 阅读(57) / 评论(0) 分类 英语听力文摘 English Digest

Why Does Crying Make Your Nose Run? When you burst out crying, you expect the bleary red eyes and the rivers of tears that stream down your cheeks. But on top of all that, your nose starts to run like a faucet. Why does this happen? Whats the connect

发表于:2018-12-31 / 阅读(58) / 评论(0) 分类 英语听力文摘 English Digest

Why Lettuce Should NOT Be Frozen Stroll through the frozen foods section of the supermarket and youll find frozen corn, peas, and beans. A Moment of Science wonders, why isnt there any frozen lettuce? 图片1 Why Cant I Freeze Lettuce? Freezing is a

发表于:2018-12-31 / 阅读(80) / 评论(0) 分类 英语听力文摘 English Digest

Why Do You Become Dehydrated When Sick? When you have a cold or flu, the doctor (or Dr. Mom) may tell you to drink lots of fluids. But did they ever explain why you need to guzzle all that water and juice? The extra fluid helps prevent dehydration, w

发表于:2018-12-31 / 阅读(64) / 评论(0) 分类 英语听力文摘 English Digest

Is There Life On Other Planets? Weve all been hearing about ongoing Mars exploration, and how water probably used to be abundant there. And a water spewing volcano was recently discovered on a small moon orbiting Saturn. Water is one sign that life m

发表于:2018-12-31 / 阅读(163) / 评论(0) 分类 英语听力文摘 English Digest

How Do Scientists Study Deadly Diseases? I have a trivia question for you, Don. What do the Ebola virus, anthrax, and the avian flu have in common? 图片1 Researching Disease After all, theyre some of the most dangerous, deadly diseases around. On t

发表于:2018-12-31 / 阅读(62) / 评论(0) 分类 英语听力文摘 English Digest

What Is A Concussion? If you follow football, hockey, soccer, or boxing, then you know that athletes in these and other contact sports are at constant risk for a concussion. Every season several football players miss a number of games after absorbing

发表于:2018-12-31 / 阅读(145) / 评论(0) 分类 英语听力文摘 English Digest

Why Do Dark Circles Form Under My Eyes? Its eleven oclock Sunday morning, and youve just woken up after a late night of carousing. You stumble out of bed, brace yourself on the bathroom sink and blink into the mirror. 图片1 There, under your eyes,

发表于:2018-12-31 / 阅读(74) / 评论(0) 分类 英语听力文摘 English Digest

Shenzhou 11 spacecraft to carry two astronauts into space Sitting under the national flag and separated from the media by a transparent glass wall, 50-year-old Jing Haipeng and 37-year-old Chen Dong appeared calm as they prepare to be part of, what i

发表于:2019-01-19 / 阅读(102) / 评论(0) 分类 2016CRI中国国际广播电台

After an exhaustive review of the new space lab, as well as the Long March rocket which will carry it into space, along with weather conditions, Chinese space authorities have decided to launch Tiangong-2 tonight, shortly after 10pm. The launch coinc

发表于:2019-01-19 / 阅读(94) / 评论(0) 分类 2016CRI中国国际广播电台

AS IT IS 2016-03-03 Kelly, Kornienko Land on Earth after Year in Space Scott Kelly and Mikhail Kornienko have their feet on the ground for the first time in 340 days. Riding in a Russian spacecraft, they made it back to Kazakhstan, along with a fello

发表于:2019-02-12 / 阅读(176) / 评论(0) 分类 2016年VOA慢速英语(三)月

In March of 1966, Neil Armstrong got his first chance to put his training to the test. He was the command pilot of Gemini 8, which was to dock or connect with another satellite already in space. This was an important step in the goal of reaching the

发表于:2019-02-21 / 阅读(50) / 评论(0) 分类 名人认知系列 Who Was

The United States space program began in the late 1950s. Only a little more than fifty years earlier, in 1903, Wilbur and Orville Wright flew the very first airplane in Kitty Hawk, North Carolina. Yet by mid-century, air travel was common. After the

发表于:2019-02-21 / 阅读(61) / 评论(0) 分类 名人认知系列 Who Was