单词：ocean floor spreading
单词：ocean floor spreading 相关文章
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(
新东方背诵文选
SCIENCE IN THE NEWS - Plate Tectonics By Marilyn Christiano Broadcast: Tuesday, February 17, 2004 (THEME) VOICE ONE: This is Science in the News, in VOA Special English. I'm Sarah Long. Graphic Image
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VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Steve Ember. VOICE TWO: A massive earthquake in China's Sichuan province earlier this year was the country's worst in more than 30 years. And I'm Barbara Klein. Scientists who study
VOA慢速英语2008（十）月
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(n.[地]岩石圈)is divided into a few dozen plates o
新概念优美背诵短文50篇
Hi, I`m Carl Azuz, and here`s a look at some of the stories making headlines today. Wildfires are burning across parts of Texas. Firefighters are making progress against them, but the fires still threaten dozens of homes. In New York, a 9/11 memorial
CNN2011年(九)月
This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. Its often said we know more about the moon than we do about the depths of the ocean. There is a lot we dont know about the H2O that covers much of the pl
Scientific American(五)月
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(n.[ 地 ] 岩石圈 )is divided into a few dozen p
考研背诵50篇
Its often said we know more about the moon than we do about the depths of the ocean. There is a lot we dont know about the H2O that covers much of the planet. Now were getting closer, though, to an important understanding: Just how deep are the ocean
60秒科学
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty. Scientists who study the Earth tell us that the continents and ocean floors are always moving. Sometimes, this movement is violent and
VOA慢速英语2007年（六）月
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
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
2013年VOA慢速英语(八)月
Whales Never Die on the Ocean Floor 鲸鱼不会死在海底 Their calls can be haunting. Their size can take your breath away. And their worlds are dark and quiet. Whales! There are many different species of these huge, warm-blooded, air breathing m
2015年VOA慢速英语(十)月
AS IT IS 2016-03-09 Trending: New Octopus Spotted on Ocean Floor 海底发现章鱼新种类 This is Whats Trending Today: There are still lots of undiscovered areas around the globe but most are below the surface of the ocean. Recently, the U.S. Nat
2016年VOA慢速英语(三)月
Ocean Floor Reveals Past Climate Changes Time capsule Lamont research professor Maureen Raymo, the director of the Core Repository, slides open a long, narrow drawer from the cabinet. Like thousands of others here, the drawer contains a long, thin cy
VOA标准英语2012年(一月)
Ocean Floor is Prime Target of Mining Industry The next great frontier for the mining industry could be hydrothermal vents that lie deep on the ocean floor. The super-hot flues create deposits of sulfide, which contain precious metals such as gold, s
VOA标准英语2012年(六月)
In Africa, New Technologies Help Teach Women to Read 在非洲，新技术帮助教女人阅读 More Africans are communicating via text, social media and email. In Senegal, literacy experts are using the new technologies to motivate and teach women
VOA标准英语2014年(十月)
MICHEL MARTIN, HOST: We're going to switch gears now. This is a mystery story, a spy story and a technology story all rolled into one. It started one February morning in the middle of the Pacific Ocean, when Soviet submarine K-129 sank to the bottom
2017年NPR美国国家公共电台9月
SCIENCE IN THE NEWS - Plate Tectonics: Nature's Way of StretchingBy Nancy Steinbach Broadcast: Tuesday, April 18, 2006 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Barba
2006年慢速英语（四）月
混血儿Sean Paul自幼就很喜欢运动，并十分擅长游泳和水球。后来的Paul还入选了牙买加的国家队。但舞曲音乐却始终是Paul的最爱。Sean Paul在决定放弃体育之后开始专注于做自己的音乐。1993年，
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A very little of this had been known for some time. People laying ocean-floor cables in the nineteenth century had realized that there was some kind of mountainous intrusion in the mid-Atlantic from the way the cables ran, but the continuous nature a
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