美联社新闻一分钟 AP 2013-12-22

This pump has been changed out before. This is the starboard side. Back in August of 2010, we did a pump rr for a different failure. That was actually a failure of the pump. This is a valve inside the pump module itself. And so, this particular pump

NPR 2012-03-10

The US is seeing its strongest three months of hiring since the start of the recession. The Labor Department reports an increase of 227,000 jobs in February. The numbers from the previous two months have also been revised upward. But the unemployment

SSS 2009-11-13

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

科学家宣布地质纪元进入“人类世”

The 11,700-year-old Holocene epoch is over. We're now living in the Anthropocene epoch. 长达11700年的全新世结束啦。我们如今正生活在人类世纪元。 编者注：全新世（Holocene Epoch），是最年轻的地质年代，它与更

TED演讲:探索世界最深洞穴(3)

We're going to be shooting from minus 2,600 meters that's a little over 8,600 feet down at 30 kilometers from the entrance. 我们要从地下2600米处,大约8600多英尺之下--开始拍摄。那个地方离洞口30千米处。 The lead crews will

英语听力：自然百科 地球力场 Earth's Force Field—3

In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati

英语听力：自然百科 地球力场 Earth's Force Field—11

Blockson's computer model reveals that at the South Atlantic Anomaly, the magnetic field isn't just weaker than anywhere else on the planet. It's actually reversed polarity. There is a patch on the core in the South Atlantic where things are not poin

MESSENGER Probe Sends First Mercury Images

The U.S. space agency(代理中介) has released the first ever image taken of the surface of Mercury from a spacecraft orbiting the planet. The black and white image, posted on the NASA website Tuesday, shows a surface pocked with craters of varying

NASA Messenger Probe Set for Historic Orbit Around Mercury

The U.S. space agency NASAs Messenger probe（正直的，廉洁的 ） is scheduled to reach Mercury later this week, and become the first spacecraft to orbit the planet closest to the sun. During Messengers year-long orbital mission, scientists exp

维珍飞船沙漠坠毁 “太空一游”需25万美元

LOS ANGELES, Oct. 31 (Xinhua) -- A passenger rocket plane developed by Virgin Galactic's crashed on Friday after suffering an in-flight anomaly during a powered test flight over the U.S. state of California, the commercial company said on Twitter. 新华

科学家宣布地质纪元进入人类世

These are called love tents but they're not what you think. 虽被称为爱的帐篷，但是它们可与你所想不同。 Chinese colleges have come up with an unusual way to help freshmen settle in. 中国的大学别出心裁，以一种特殊的方

Photo of my wife　我老婆的照片

Photo of my wife 我老婆的照片 A businessman enters a tavern, sits down at the bar, and orders a double martini on the rocks. After he finishes the drink, he peeks inside his shirt pocket, and then orders the bartender to prepare another double

TED演讲:地球的年龄有多大(2)

The United States of America's Declaration of Independence would be signed in the last half-inch. 美国的独立宣言签署在最后的半英寸。 Or if we compared geologic time to a woman stretching her arms to a span of six feet, 如果我们将地

英语博客：Designing a special photo for the app.

I love to use my laptop, to play around with different programs, to surf the web, and to edit photos. Today I have been doing that for hours. Now that my app has come out in iTunes, I have been trying to design a really good photo for it. The existin

托福阅读要基于对原文进行推断

其实，推断题没有想象中的那么难，因为托福文章有很清晰的逻辑架构，T(topic)+A(aspect)+A(attitude)的篇章结构和TS(topic sentence)+D(detail)的段落结构是几乎每节课我都会提到的，只有明白了文章的写

学个词Learn a Word 第713期 photo op.

今天我们要学的词是photo op. Photo op是photo opportunity的简称，意思是为做宣传而专门安排的媒体拍照机会。The meeting between the two Presidents was followed by a photo op, 两位总统会面后接受媒体拍照。 一架

TED演讲:用玩具创造世界(5)

Now, as we pull down here, we still have a whole set of creatures living on the surface of the planet. 现在当我摧毁这里的时候，在这个星球上其实还居住着一系列的生物， There are all these different dynamics going on here.

万物简史 第330期:美丽而危险(13)

Eighty million tons of rock, moving at more than one hundred miles an hour, just fell off the mountain, 8000万吨岩石以每小时160公里的速度从山上崩塌下来， traveling with such force and momentum that the leading edge of the landsli

双语有声阅读：板块结构与海床扩展

Plate Tectonics and Sea-floor Spreading The theory of plate tectonics describes the motions of the lithosphere, the comparatively rigid outer layer of the Earth that includes all the crust and part of the underlying mantle.The lithosphere is divided

听电影学英语-生活大爆炸第一季 11．The Pancake Batter Anomaly(面糊异常): Sheldon感冒事件

[00:27.68]checkmate 将军! [00:32.28]again?! 又来?! [00:32.64]Obviously,you're not well suited for three-dimensional chess. 很显然 你不适合玩三维国际象棋 [00:36.84]Perhaps three-dimensional candy land would be more your speed. 你的水