擦痕岩面

EXPLORATIONS - Mars Exploration, Part 2

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(273) / 评论(0)

Explorations

英语听力：探索发现科学新发现：我们的大气层-23

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(170) / 评论(0)

探索与发现2014年

Horizon - Life On Mars 火星生命 - 8

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(182) / 评论(0)

火星生命

SCIENCE IN THE NEWS - Plate Tectonics

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(239) / 评论(0)

科技之光

VOA慢速英语 2008 1028b

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(167) / 评论(0)

VOA慢速英语2008（十）月

朗文3L看听学英语第四册 Lesson 71

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(126) / 评论(0)

朗文3L看听学英语第四册

凯瑟琳升职记:商务辩论之别找麻烦了

【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(195) / 评论(0)

凯瑟琳升职记

2007-11-29, Flying Devils - 空中的“魔鬼”

Here they are! Striated Caracaras, doing what they do best--scavenging. This is exactly the type of scene the National Geographic crew expected to catch on camera when they went to the frigid Falkland Islands. What they didnt expect? Well, the birds

发表于:2018-12-30 / 阅读(240) / 评论(0)

国家地理2007年

专业术语—口腔生理学术语S3(英文详解)

Stem cells - cells from which a number of more Stimulated saliva - saliva which has been stimulated by chewing. Stippled - a pattern which is made of small dots. Gingiva has a stippled appearance due

发表于:2019-01-03 / 阅读(274) / 评论(0)

医务英语

VOA慢速英语 2007 0619b

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(174) / 评论(0)

VOA慢速英语2007年（六）月

VOA慢速英语2011-SCIENCE IN THE NEWS - Earth’s Continent

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(224) / 评论(0)

2011年VOA慢速英语(一)月

VOA慢速英语2013 地壳总是在运动的

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(169) / 评论(0)

2013年VOA慢速英语(八)月

VOA慢速英语2012--SCIENCE IN THE NEWS - The Moving Story of Plate Tectonics

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(262) / 评论(0)

2012年VOA慢速英语(一)月

VOA慢速英语2014 Earth's Surfaces Are Always Moving 地球表面一直在运动

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(156) / 评论(0)

2014年VOA慢速英语(四)月

TED演讲:昔日纽约(4)

The few surfaces not covered by signs are often clad in a distinctive, dark green-gray, striated aluminum siding. 这仅存的没有被商标遮盖的建筑，一般都被包裹在有特色的阴暗铝灰条纹的铝制外壁板之中。 Take-out san

发表于:2019-01-18 / 阅读(240) / 评论(0)

TED演讲商业篇

VOA慢速英语20060418c

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(283) / 评论(0)

2006年慢速英语（四）月

VOA慢速英语2010年-SCIENCE IN THE NEWS - How Earth Is Cra

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(192) / 评论(0)

2010年慢速英语(一)月

托福阅读要基于对原文进行推断

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(210) / 评论(0)

托福英语

托福阅读背景材料之火山岩

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(158) / 评论(0)

托福英语

万物简史第310期:地下的烈火(18)

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(169) / 评论(0)

万物简史

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

A.B.G.

ablation material

adrenal cortexes

allowable tolerance of filament voltage