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EXPLORATIONS - Mars Exploration, Part 2 By Paul Thompson Broadcast: Wednesday, February 04, 2004 (THEME) VOICE ONE: This is Shirley Griffith. VOICE TWO: An artists picture of a Mars Rover vehicle. And

发表于:2018-12-01 / 阅读(184) / 评论(0) 分类 Explorations

But the friction and heat wears away at the space rock, the hot air actually melts the metal surface, and often the collision with the atmosphere can have a shattering effect, splitting the meteorites along fissures. This is an actual meteorite, and

发表于:2018-12-03 / 阅读(116) / 评论(0) 分类 探索与发现2014年

But even if there had been water, life doesn't start overnight. Even a simple microbe is the product of complex chemical systems that take millions of years to evolve. Had the water lasted long enough

发表于:2018-12-07 / 阅读(117) / 评论(0) 分类 火星生命

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

发表于:2018-12-07 / 阅读(162) / 评论(0) 分类 科技之光

EXPLORATIONS - Ancient Martian Conditions Could Have Supported Life From VOA Learning English, this is EXPLORATIONS, in Special English. Im Kelly Jean Kelly. And Im Christopher Cruise. Today we report on recent scientific findings about the planet Ma

发表于:2018-12-07 / 阅读(103) / 评论(0) 分类 2013年VOA慢速英语(三)月

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

发表于:2018-12-07 / 阅读(110) / 评论(0) 分类 VOA慢速英语2008(十)月

Lesson 71 Television Day: Moonflight TV Commentary: Last week we recorded this interview with one of the astronauts who had returned from a recent moonflight. We asked him tc tell us what he had done and what he had seen. We asked him what it was lik

发表于:2018-12-20 / 阅读(66) / 评论(0) 分类 朗文3L看听学英语第四册

【情景再现】 Tom和一位美国同事将要代表公司去参加一场商务谈判,是否能像预想的那样拿下这个项目大家谁都不知道,他们尽全力,做好了准备工作,制定了一套方案,可是谈判前半小时的

发表于:2018-12-30 / 阅读(138) / 评论(0) 分类 凯瑟琳升职记

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

发表于:2019-01-11 / 阅读(119) / 评论(0) 分类 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

发表于:2019-01-11 / 阅读(182) / 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(111) / 评论(0) 分类 2013年VOA慢速英语(八)月

SCIENCE IN THE NEWS - The Moving Story of Plate Tectonics FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Scientists who study the Earth tell us the continents and ocean floors ar

发表于:2019-01-12 / 阅读(162) / 评论(0) 分类 2012年VOA慢速英语(一)月

Earth's Surfaces Are Always Moving 地球表面一直在运动 From VOA Learning English, this is Science in the News. Im Anna Matteo. And Im Christopher Cruise. Scientists who study the Earth tell us the continents and ocean floors are always moving

发表于:2019-01-12 / 阅读(104) / 评论(0) 分类 2014年VOA慢速英语(四)月

Like these sea fans, the last frontier of life on the reef. The divers reach their target-- a massive ridge, 190 feet down. Here, the air they are breathing is under pressure, squeezed down so that there's more gas in every lungful. They have to hope

发表于:2019-01-22 / 阅读(131) / 评论(0) 分类 自然百科2011年

Todd: So, James, you're in a band! James: Yes! Todd: OK, tell us about your band. James: I play in a Swedish Bubblegum Punk Band. Todd: Swedish Bubblegum Punk Band. What exactly is that? James: I don't know, but that's what it says on the CD. Todd: O

发表于:2019-01-25 / 阅读(90) / 评论(0) 分类 英语趣味课堂

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

发表于:2019-01-30 / 阅读(228) / 评论(0) 分类 2006年慢速英语(四)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: 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 violent and mig

发表于:2019-01-31 / 阅读(140) / 评论(0) 分类 2010年慢速英语(一)月

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

发表于:2019-02-18 / 阅读(155) / 评论(0) 分类 托福英语

托福阅读的关键是在于多看多练,为了帮助广大考生更好的复习,小编为大家整理提供托福阅读背景知识,以供各位考生复习参考,生活中有很多事情需要大家细心观察和发现,阅读文章不仅

发表于:2019-02-21 / 阅读(109) / 评论(0) 分类 托福英语

So all that can be said is that at some slightly indeterminate point as we head toward the center of Earth we leave the asthenosphere and plunge into pure mantle. 因此,我们只能说,在前往地球中心的过程中,我们会在某个不大确

发表于:2019-02-25 / 阅读(114) / 评论(0) 分类 万物简史
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