英语听力文摘 English Digest 615、制造属于你自己的月球陨石坑

Create Your Own Moon Craters! What makes science really fun is when you get to do things yourself, so today were going to be making moon craters. Theyre the roundish blast-marks left on the moons surface by ancient meteorites. The moons surface is co

英语听力文摘 English Digest 620、冰块如何使饮品冷却？

How Does Ice Cool Drinks? Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? Heat is a measure of molecular activity: the faster a

英语听力文摘 English Digest 524、闪电有助于肥沃土壤！

Lightning Helps Fertilize The Soil Our bodies need protein, and proteins contain nitrogen. The air we breathe has plenty of nitrogen to satisfy our needs. Butthat nitrogen is not available to us directly from the air. The only way we can get nitrogen

英语听力文摘 English Digest 572、神奇的发光色彩？

A Magical Glow? Have you ever wondered why fluorescent colors, like you see in highlighters or clothing dyes, for instance,seem so much brighter than other colors? Its because they seem to reflect more light than they receive! It may sound like a mag

英语听力文摘 English Digest 533、为何冰箱会发出声音？

Why refrigerators hum? Why refrigerators hum，on toay's moment of science.On the recent program we have discussed how fluorocarboncoolant cools your food by coming to a boil in coils hidden in your fridge. How is this possible? When you boil water o

VOA双语新闻 Some Oil, Gas Facilities

Several oil and gas facilities in the Gulf of Mexico have resumed operations following Hurricane Katrina. However, an industry analyst says the full extent of damage to generating facilities is still unknown. 美国墨西哥湾地区的几个炼油厂在

英语听力文摘 English Digest 53、2008年科技大预测

What's in store for tech fans in 2008? Plenty. Technology buffs can look forward to products that are better, faster and less expensive than those we rely upon today. The iPhone may have been the biggest tech product rollout of 2007, but that doesn't

2007年VOA标准英语-Climate Study Calls for Alternative Technologie

By Paul Sisco Washington 04 May 2007 The United Nations Intergovernmental Panel on Climate Change on Friday plans to issue a third report on ways to offset global warming. Scientists and government administrators from more than 120 countries have bee

英语听力文摘 English Digest 362、超市的诡计

Shopping and Hummingbird s 购物和蜂鸟 Yal: Did you know, Don, that your shopping habits maybe similar to a hummingbird s? Don: Are you going to tell me that hummingbird s are also sold on flash colors and miracle diamonds? Y: No. But it turns ou

英语听力文摘 English Digest 364、外星人要吃人？

Why Alien s Wont Eat Us Are alien s going to eat us? Thats more of a science fiction question. But science does have something to say here, and sometimes purely imaginative questions are great tools for helping us think about how the real world works

英语听力文摘 English Digest 365、“不平等”的肌肉

肌肉生而不等 Don:Its not fair! Yal: Whats not fair? D: I was rereading the Constitution of the United States. It says here that All people are created equal.Thats just not true! Y:What do you mean? D: Well, its always being my dream to become t

英语歌曲:Energy

Energy Boy, I'm digging on your energy (Energy) and I'm digging what you telling me (Telling me) so I wrote this little melody 所以我写下了这首曲子 dedicated to my favorite lover 献给我最爱的人 Boy, I'm digging on your energy (Energy

美语听力 English Cafe 169

Topics: Alternative energy; Monticello; criticize versus chastise versus chasten; please inform versus please be informed; to denominate Words: alternative nonrenewable resources environmentally friendly documentary political spectrum to advocate for

英语听力文摘 English Digest 323、荡秋千的精彩

Swinging Physics: Potential And Kinetic Energy Working Together 动能与势能相互作用 动能是所有能看到的运动的能量，包括物体的，微粒的或质点集的运动等。 势能(Potential energy )是位置的函数，例如把一个

英语听力文摘 English Digest 335、新陈代谢到底是什么？

The Parts of Metabolism 新陈代谢到底是什么？ What is metabolism really? Statements like he can eat a lot because he has a fast metabolism are somewhat misleading. Metabolism isnt about the digestion of food in your stomach; its the name giv

英语听力文摘 English Digest 301、清晨为何冷得发抖？

Early-morning Shivers 清晨为何冷得发抖？ 自然界、生物界都有它本身的特有的严谨的节律。人体的生物节律与自然节律相适应，人类才得以生存下来。地球上亿万年的昼来夜往，永不停息。人体的

英语听力文摘 English Digest 392、最快的车是什么？

What Makes Hybrid Cars So Efficient ? 最快的车是什么？ Don : Hybrid cars are known as hybrid s because they use an electric motor to augment the performance of a small, efficient gasoline engine. But this isnt the only reason hybrid s are mor

英语听力文摘 English Digest 173、如鱼得水

D: OK, Yael, you want to build an aquatic robot,and you're trying to figure out the most efficient way to move it through water, what do you do? Y: I am guessing the answer isn't to build a robot using a lot of root-force to move forward? D: Anyone w

2015年CRI Premier Li Urges High-level China Manufacturing

Chinese Premier Li Keqiang has urged an upgrading of the manufacturing industry in order to ensure medium-high level economic growth in the country. Premier Li made the remarks on Monday during an inspection visit to China Nuclear Power Engineering C

英语听力文摘 English Digest 261、热是一种运动？

The Heat Is On 热传递，是热从温度高的物体传到温度低的物体，或者从物体的高温部分传到低温部分的过程。热传递是自然界普遍存在的一种自然现象。只要物体之间或同一物体的不同部分之间