Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher; the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the ninete

发表于:2019-01-08 / 阅读(74) / 评论(0) 分类 英语小短文

中国登月引发月球开发争论 LONDON Last month, China successfully landed an unmanned probe on the Moon. The mission renewed a debate about the potential exploitation of the Moons resources and who exactly owns the Earths only natural satelli

发表于:2019-01-09 / 阅读(83) / 评论(0) 分类 英语新闻

Mantle 地幔 We are living on the surface of the Earth. 我们生活在地球表面。 So, what is inside the Earth? 那么,地球内部是什么? There is a mantle under the surface of the Earth. 地球表面以下是地幔。 The mantle takes

发表于:2019-01-10 / 阅读(172) / 评论(0) 分类 与美国小学生一起学英文第7册

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Faith Lapidus. STEVE EMBER: And I'm Steve Ember. Scientists who study the Earth tell us that the continents and ocean floors are always moving. Sometimes, this movement is violen

发表于:2019-01-11 / 阅读(123) / 评论(0) 分类 2011年VOA慢速英语(一)月

Earth is Always on the Move 地壳总是在运动的 From VOA Learning English, this is SCIENCE IN THE NEWS, in Special English. Im Kelly Jean Kelly. And Im Christopher Cruise. Scientists who study the Earth tell us the continents and ocean floors ar

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 2013年VOA慢速英语(八)月

Fire and brimstone! Ned put in. 尼德兰喊一声:好家伙! All right then, my fine harpooner, if vertebrates several hundred meters long and proportionate in bulk live at such depths, their surface areas make up millions of square centimeters,

发表于:2019-01-28 / 阅读(59) / 评论(0) 分类 《海底两万里》中英双语有声读物

AGRICULTURE REPORT - Solar Food Dryers By Gary Garriott Broadcast: Tuesday, March 01, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Drying food is a simple, low-cost way to keep

发表于:2019-01-30 / 阅读(88) / 评论(0) 分类 农业与发展

Hundreds of rescuers are continuing to try to find survivors of the accident, even though the chances of anyone still being alive are fading by the day. The president of the Korea Rescue Association says the search will intensify in the next three da

发表于:2019-01-31 / 阅读(125) / 评论(0) 分类 CCTV9英语新闻2014年04月

US Nuclear-Powered Submarine Runs Aground An accident has occurred on one of the U.S. Navy's nuclear powered attack submarines in the Pacific Ocean. The Navy says the sub, for reasons not yet known, h

发表于:2019-01-31 / 阅读(98) / 评论(0) 分类 VOA2005(上)--国政军事聚焦

You cannot find or will you ever find gold on the surface. It has to be discovered and has to be found deep inside the Earth's ground. And it takes years to find the gold and this is why it is so valuable; Not everyone has it. 在地面永远都不可能

发表于:2019-02-01 / 阅读(56) / 评论(0) 分类 阅读空间

32 . Journey To The Bottoms Of The Pacific Ocean The journey two naval officers made some time ago to the very deepest point on the earth makes us realize how much of the world still remains to be explored. The two men went down seven miles to the

发表于:2019-02-03 / 阅读(130) / 评论(0) 分类 英语背诵文选第一册

WASHINGTON, May 17 (Xinhua) -- The U.S. National Aeronautics and Space Administration (NASA) announced Tuesday that the international Aquarius/SAC-D observatory will be launched on June 9, to study interactions between ocean circulation(循环) , the

发表于:2019-02-08 / 阅读(64) / 评论(0) 分类 英语新闻

The twilight zone refers to the area between 100 and 1000 metres deep where a small amount of sunlight can still penetrate. The region is packed with ocean life that plays a key role in keeping atmospheric carbon-dioxide levels 30-percent lower than

发表于:2019-02-08 / 阅读(59) / 评论(0) 分类 英语新闻

But today's flight is no rescue mission. 但今次出航的目的不是救援 Its purpose is to deploy me into harsh glacier terrain high up in the Chugach mountains. 而是要把我撂在楚加奇山脉中 严酷的冰川高地上 I plan to rappel.

发表于:2019-02-13 / 阅读(61) / 评论(0) 分类 荒野求生

The tropics contain a larger surface area of land than higher latitudesa fact that is not always evident when we examine commonly used projections of Earth's curved surface, since this tends to exaggerate the areas of land in the higher latitudesand

发表于:2019-02-13 / 阅读(73) / 评论(0) 分类 托福英语

As always, however, nothing was quite as straightforward as such a breezy description makes it sound. Meteorites are not abundant and meteoritic samples not especially easy to get hold of. Moreover, Brown's measurement technique proved finicky in the

发表于:2019-02-17 / 阅读(59) / 评论(0) 分类 万物简史

如何在托福阅读中提取句子的主干?这样即抓住了阅读的重点,也节省了阅读时间。有些同学对于分析长难句并不是那么敏感,看到句子简化题可能就会有晕头转向的感觉,在这里给大家讲解一

发表于:2019-02-18 / 阅读(60) / 评论(0) 分类 托福英语

15.If during this period Lorraine and Mark, not neces- sarily in that order, are stationed at immediately adjacent windows, which of the following can be stationed at window 1 during this period? (A) J

发表于:2019-02-18 / 阅读(65) / 评论(0) 分类 实用英语

We are rediscovering the enigmas(谜团) of the Moon and they're really in our own backyard Dr Jim Garvin, Nasa Goddard Space Flight Center Moon water has world in a twitter A surprising amount of water has been found to exist in the Moon's soil. Data

发表于:2019-02-18 / 阅读(79) / 评论(0) 分类 英语新闻

很多参加gre的考生在做gre写作的时候都没有写提纲的习惯,这是非常不好的。提纲在gre写作当中起到了至关重要的作用。从今天起,我们将对gre issue进行分析,弄清写作思路,这样才能让gre

发表于:2019-02-19 / 阅读(93) / 评论(0) 分类 GRE作文