新东方优美背诵短文50篇 Unit39:The Salinity of Ocean Waters

If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the

英语听力：探索发现 科学新发现：我们的大气层-14

A single river can carry three times as much water as the entire Mississippi, they provide almost half the annual rain fall for parts of the American Pacific coast, but when they remain in one area for a day or more, they can produce violent flooding

Earth and Sky:Global Warming and Ozone 全球变暖和臭氧

Global Warming and Ozone 全球变暖和臭氧 Could the coming century bring a new threat to the ozone layer? Discover one scientist's model of the effect of global warming and greenhouse gases on ozone -- on today's Earth and Sky. DB: This is Earth and S

60秒科学:Do Rainforests Create Rain?

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

SSS 2009-05-07

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

SSS 2011-12-12

Cooking is one big science experiment and chefs have been gaining fame for more explicit uses of scentific techniques and tools in the kitchen. Now, according to an article in the December issue of physics world, mixologists the folks behind the bar

英文短文：The Salinity of Ocean Waters

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

VOA慢速英语2014 美国国家航空航天局在外太空发现生命

AS IT IS 2014-07-22 NASA to Discover Life in Outer Space 美国国家航空航天局在外太空发现生命 NASA scientists say they are closer than ever to finding life beyond Earth. Several leading NASA scientists spoke to a gathering July 14th at

VOA标准英语2014--美国宇航局的Maven飞船到达火星

NASA's MAVEN Spacecraft Arrives at Mars 美国宇航局的Maven飞船到达火星 NASAs newest Mars probe, called MAVEN, has successfully entered its designated orbit around the red planet. Scientists will use its sophisticated instruments to try to

科学美国人60秒 SSS Biggest Rivers Are Overhead

Back in January, one of California's oldest and most iconic residents keeled over: the Pioneer Cabin tree, a giant sequoia in Calaveras Big Trees State Parkso big you used to be able to drive through it. The giant was blown over by high windsdelivere

科学美国人60秒 SSS 沐浴雨中 随风飘荡

Back in January, one of California's oldest and most iconic residents keeled over: the Pioneer Cabin tree, a giant sequoia in Calaveras Big Trees State Parkso big you used to be able to drive through it. 在今年一月份，加州一座最古老、最

VOA常速英语2013--非洲大陆的灰尘飘向美国

Africa Kicks-up A Lot of Dust 非洲大陆的灰尘飘向美国 Bits and pieces of the African continent are falling on the United States and surrounding regions much of the year. Scientists say large amounts of African dust may be having major effec

雅思阅读词汇：探索太空生命(1)

a high spatial resolution 高空间分辨率 a xenon-lamp 氙灯 abode n. 住所，住处 absence n. 缺乏 acceptor n. 接受者 access v. 接近 aerobic adj. 依靠氧气的，与需氧菌有关的

本世纪末全球气温至少上升4摄氏度

科学家估计，如果不减少二氧化碳排放，2100年地球平均气温将至少上升4摄氏度，到2200年会上升8摄氏度，无疑是地球灾难性的噩梦。 此前有科学家用气候模型分析称，全球气温将受二氧化碳排

Vast water vapor beyond solar system found

BEIJING, Oct. 21 (Xinhuanet) -- A team of European researchers announced that they have found vast water vapor out of our solar system, according to a study in the U.S. journal Science Friday. Using Herschel Space Observatory, a European Space Agency

美国语文第六册 第49期:生命之虚妄(1)

Man, born of woman, is of a few days, and full of trouble; 人从呱呱落地，只是短暂的几天，麻烦不断； He cometh forth as a flower, and is cut down; 他初如鲜花哪堪折； He fleeth also as a shadow, 像影子一样循去， And

英语小达人 299 What the Student Say in Science Classes

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Sugarcane can cool climate, study finds

LOS ANGELES, April 18 (Xinhua) -- Sugarcane（甘蔗） has the effect of cooling temperatures(温度) , thus playing role in stemming global warming, a new study has found. Sugarcane does so by reflecting sunlight back into space and by lowering the

万物简史 第386期:浩瀚的海洋(5)

There are 320 million cubic miles of water on Earth and that is all we're ever going to get. 地球上有13亿立方公里水，这是全部。 The system is closed: practically speaking, nothing can be added or subtracted. 系统已经关闭，说得明

双语有声阅读：海水盐度

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s