地球座标系侧轴

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(

发表于:2018-12-01 / 阅读(179) / 评论(0) 分类 新东方背诵文选

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发表于:2018-12-01 / 阅读(95) / 评论(0) 分类 《学会英语发音》初阶英语拼读系列 第六册

Twice a year, day and night, fall into balance, lasting for nearly equal length. Known as equinoxes, Latin for equal night, they occur in March and September and along with solstices mark the changing of seasons as Earth travels around the sun. Astr

发表于:2018-12-05 / 阅读(65) / 评论(0) 分类 国家地理2008年

New NASA Mars Mission Will Study Deep Under Planets Surface NASA, the American space agency, is sending a robotic scientist to Mars. It will dig deeper than ever before to study the planets geological activity. The Mars InSight spacecraft launches Ma

发表于:2018-12-08 / 阅读(78) / 评论(0) 分类 2018年VOA慢速英语(五)月

Yes I am.You guys are awesome just like Fridays.Thank you for the introduction.I am CA,the real one.Here with your commercial-free headline. First up.A military mission started more than a decade ago could be ended earlier than expected.Yesterday,the

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 CNN2012年(二)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky at the Lindau Nobel Laureate Meeting in Lindau Germany.This will just take a little more time than our usual minute. Harold Kroto won the Nobel Prize in Chemistry in 1996 for the disco

发表于:2018-12-24 / 阅读(88) / 评论(0) 分类 Scientific American(六)月

Happy new year and dont feel bad about taking today off, after all, youve travelled far. And Im not talking about the trip home from the party. According to NASA, just by being on the planet earth last year, youve zipped about 584 million miles aroun

发表于:2018-12-24 / 阅读(79) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute Happy New Year! And dont feel bad about taking today off. After all, youve traveled far. And Im not talking about the trip home from the party last night. According to N

发表于:2018-12-24 / 阅读(92) / 评论(0) 分类 Scientific American(一)月

Years Ago, The Year Was 400 Days Long 多年前,一年长达400天 Don: Yaeuml;l, do you notice the days changing length over the course of the year? 东:雅瑶,你有注意到一年中每一天的长度在改变么? Yaeuml;l: Sure, Don, it s

发表于:2018-12-28 / 阅读(59) / 评论(0) 分类 初学者听力文摘精选

The massive earthquake that struck Chile in February 2010 might have shortened Earth's day by 1.26 microseconds, according to calculations by a NASA scientist. An EarthSky Facebook friend asked us how. And the answer is for the day to get shorter, Ea

发表于:2018-12-28 / 阅读(58) / 评论(0) 分类 初学者听力文摘精选

We are talking now to Dr. Michio Kaku, our friend from City University of New York, Physicist. Just as important, you have friends and family in Japan, you've been in contact with them? That's right. We tried to call them on the telephone. And they t

发表于:2019-01-07 / 阅读(92) / 评论(0) 分类 万花筒2011年

Global Warming Could Delay Next Ice Age The next ice age could be delayed by tens of thousands of years due to excessive amounts of heat-trapping carbon dioxide in the atmosphere, which disrupts Earths natural cycle of warming and cooling, according

发表于:2019-01-13 / 阅读(93) / 评论(0) 分类 VOA标准英语2012年(一月)

December 11, 1936Britains King Edward the VIII becomes the first and only monarch to voluntarily give up his countrys throne . Edward abdicates in order to marry an American divorcee Wallis Warfield Simpson and he takes the title of the Duke of Winds

发表于:2019-01-19 / 阅读(67) / 评论(0) 分类 历史上的今天-2013年

Our war against terror is only beginning. January 29th 2002. Just months after the September 11th attacks. President Geroge W. H. Bush warns terroists still threaten the United States. Bush also singles out three nations during his first State of the

发表于:2019-01-19 / 阅读(46) / 评论(0) 分类 历史上的今天-2014年

But as it grew, the Khmer Kingdom faced the stumbling block. When the monsoon finished each year, the fish and water would vanish. So each year, the inhabitants were plunged into drought and hunger. The Khmer rules off the challenge magnificently. Th

发表于:2019-01-22 / 阅读(86) / 评论(0) 分类 自然百科2010年

The U.S. space agency NASAs Messenger probe(正直的,廉洁的 ) is scheduled to reach Mercury later this week, and become the first spacecraft to orbit the planet closest to the sun. During Messengers year-long orbital mission, scientists exp

发表于:2019-02-05 / 阅读(89) / 评论(0) 分类 英语新闻

December 11th, 1936Britains King Edward the VIII becomes the first and only monarch to voluntarily give up his countrys throne . Edward abdicates in order to marry an American divorcee Wallis Warfield Simpson and he takes the title of the Duke of Win

发表于:2019-02-14 / 阅读(51) / 评论(0) 分类 历史上的今天-2010年

December 11, 1936Britains King Edward the VIII becomes the first and only monarch to voluntarily give up his countrys throne . Edward abdicates in order to marry an American divorcee Wallis Warfield Simpson and he takes the title of the Duke of Winds

发表于:2019-02-14 / 阅读(64) / 评论(0) 分类 历史上的今天-2014年

Powerful earthquakes-like the ones in Haiti and Chile in 2010-leave destruction in their wake. Buildings collapse, many people are injured and killed. But the chaos created by massive quakes isnt limited to the regions where they happen. The Chilean

发表于:2019-02-23 / 阅读(55) / 评论(0) 分类 英语时差8,16

Plate Tectonics and Sea-floor Spreading 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 is divided

发表于:2019-02-25 / 阅读(79) / 评论(0) 分类 双语有声阅读
学英语单词
abnormal sperm
ammonium alginate
ammonium dithionate
angle of direction
at the end of one's yow
axis of couple
Bachenberg
bell bottoms
biomedical measurement and imaging
biscuit bakery
borosilicate glass
boundary repulsion term
brush cutoff
cheerfull
chronic malnutrition
Climb the Tree
columnar recombination
computer break-in
connection machine
copy service for microfilms
Death keeps no calendar.
deindividuating
demolition missile
diamond in the rough
Dittersdorf
diurnal clock rate
divinylacetylene
edible nest
exhaustion of local remedies
fatedness
ferroelectricities
generalized hamming code
good-father
graphite cuvette
Gruber's tests
heightener
Heublein method
hipil
horizontal loop combination
Hoyerswege
Hurthle cell tumor
iannellas
integer factorization
inward-focused
jahn
killips
kinetheodolite
kniggits
lee wave
longo intervallo
lower shroud
markiz
Mbakaou
metapodsosoma
monosulcate
Nitrados
one dollar shop
ossify
partly webbed
penalty-killing
plane radiography
plum yew
portia taiwanica
preantennal appendage
quick-change chuck
race up
rankovic
real gas effects
refracting-telescope
remote telemetry unit
rhizobenthic
rib of valve
Ro manish
Rubizhne
sachemdom
saint-sulpice
sec.-butylidene
sectional impression
sex-intergrade
single-electric conductor
Souza
St Clair County
star cable-stay bridge
stealth technology
stepped austenitizing
stevensons
submersible watertight cable
sugarcane
tally-down
thertre
toquets
transmural pressure
ultrasonic reflectoscope
unapprised
unprotestantized
valid approximation
Vanilla Rice
vapour generator
wan-chens
water son
wipe the floor with someone
yfcus