单词:critical shallow-water speed ratio
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This is the VOA Special English Development Report. Before refrigerators, homes usually had ice boxes. But another way to keep food cool without the need for electricity is to use an evaporative cooler. This is easy to make and does not even use ice.
This is the VOA Special English Development Report. Indonesian women sell their harvest in a traditional floating market Before refrigerators were invented, the next best thing was an ice box. But another way to keep food fresh is to use an evaporat
Situation Critical 十万火急 by Kevin Lustig In some jobs, danger can appear at any moment. In the blink of an eye, the routine can become perilous. This month, the National Geographic Channel shows us what happens when a normal situation becomes
088 distance and speed Words Near/close far rush hurry crawl pace velocity wide tall long short length deep narrow broad high depth shallow short-cut long-distance rapid slow fast quick height low faraway Phrases Take(time) A drive/walk A distance of
本次考试的题目配置:2旧2新,填空题与选择题在题量上旗鼓相当。Section One:填空题;Section Two:配对题 + 单项选择题;Section Three:单项选择题 + 配对题;Section Four:填空题。据今天参加考试的同
BARBARA KLEIN: This is SCIENCE IN THE NEWS, in VOA Special English. Im Barbara Klein. BOB DOUGHTY: And Im Bob Doughty. Today we remember Hurricane Katrina and tell about the science of severe ocean storms. (MUSIC) BARBARA KLEIN: Many Americans are ob
I see 我明白了 例句: A:I heard you were moving to NanJing. 我听说你要搬去南京。 B:That's right, I got an offer for a terrific job. 是的,我得到了一份很好的工作。 A:I see. 明白了。 A:You need to drink a lot of wate
NASA scientists report NASAs Phoenix spacecraft has discovered evidence of past water at its Martian landing site and spotted falling snow for the first time on Mars. Soil experiments reveal the presence of two minerals known to be formed in liquid
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
By Paige Kollock Washington 28 June 2006 Surfing has fascinated Americans for decades, and in some parts of the country has given birth to its own surfing culture and dialect. Some people grow up surfing, while others come to it from other sports li
This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? Earth's surface is dominated by oceans. But where did all that water come from? Asteroids and comets smashing into the early Earth have long been thought to be a promisin
UNIT 4 [00:03.08]Lessons 25~32 [00:08.05]Look into Science! [00:11.89]Lesson 25: [00:16.64]Keep the Candle Burning!Science is so interesting! [00:23.72]I'm sure you'll like this experiment! [00:28.68]When you do this experiment,you will learn somethi
How to build an evaporative cooler. Also, how to prepare fruits and vegetables for cold storage. Transcript of radio broadcast: 08 June 2008 This is the VOA Special English Development Report. Before refrigerators, homes usually had ice boxes. But a
NASA scientists report NASAs Phoenix spacecraft has discovered evidence of past water at its Martian landing site and spotted falling snow for the first time on Mars. Soil experiments reveal the presence of two minerals known to be formed in liquid w
Right your helm! Engines forward! Commander Farragut called. 法拉古舰长喊:舵向右,向前开! These orders were executed, and the frigate swiftly retreated from this core of light. 以上命令执行了,战舰很快离开了发光的中心。
关于、基础、靠、著论 例: This afternoon we are going to listen to a report on the international situation. 今天下午我们要听关于国际形势的报告。 Professor Shen will give us
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
There was once a farmer who lived near a road. It was not a busy road, but from time to time, cars passed the farm. Near the farm gate, there was a large hole in the road. This hole was always full of water, and the drivers of the cars could not see
China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem