岩面

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(335) / 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(211) / 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(264) / 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(327) / 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(214) / 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(261) / 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(169) / 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(252) / 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(252) / 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(294) / 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(242) / 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(371) / 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(235) / 评论(0) 分类 2014年VOA慢速英语(四)月

Kenya Moves Full-Steam Ahead on Geothermal Production Kenya is expanding plans to become one of the worlds top geothermal power producers with the start of explorations at a site called Menengai. The government is also aiming to make geothermal Kenya

发表于:2019-01-13 / 阅读(308) / 评论(0) 分类 VOA标准英语2011年(十一月)

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(244) / 评论(0) 分类 自然百科2011年

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(363) / 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(264) / 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(292) / 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(212) / 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(230) / 评论(0) 分类 万物简史
学英语单词
abbasis
abortuss
Ajax casting alloy
algoneurodystrophy
aluminium butoxide
Anderson, Leroy
append command
arquebuss
astrophotographic
bank credit fund
bike wagon
blue-black ink
butoxycaine
buttyly
Callicarpa pauciflora
capacity in grain
chain adjuster
check cop
chrome-magnesite
citrine
class cyclosporeaes
Codonocladium
coprincipal
couleur de rose
critical pressure relief device
cumulative inflation
cylinder milling machine
developing-country
dicaprio
dinge
discharge orifice
dms(drilling mud surfactant)
do away with
driving up
dynamic loading effect
EC-GLC
ectoenzymes
elasto-aerodynamics
electrically-operateds
equivalent piston
experimental investigations
extended weight (resistance) classes
first crusades
four terminal circulator
Fourmentin's thoracic index
frozen meat slicer
gons
graduate away
granary bread
grass stage
heavy strap hinge
homopolar tachogenerator
icrs
kuos
load diversity
loadsome
Maginnis
meganopteron eremitum
meligeni
microsurgery micromanipulation
minus tolerance
mosel methodology
multiple trichodiscomas
natural selection
normal melting point
opt-out
orchidcpexy
OSAT
panamides
pellet count
pen-and-ink account forms
peptonise
phenylarsenic oxide
pizzaless
preferred viewing distance
propagation error
quartz-bytownite
RamBooster
relief hole
satellite differential
scar formation
see a dentist
shaving brush
simply ordered
solitarious
soluseptasine
space air vehicle
sparkgap
Speak to the organ grinder not the monkey
sprit-sail
steensma
stiffened shell structure
subsemitones
subvert
sulphur ours
supersaturate
tapered aileron
toe dancings
tool hold key
unjudicial
volume length mean diameter
weft cop