太阳总辐射

45.The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Suns very center. It is here that is to be found the source of the energy that the Sun constantly pours out i

发表于:2018-11-28 / 阅读(424) / 评论(0) 分类 新概念优美背诵短文50篇

诸多线索综合起来为我们描绘出一幅画面:那是火星遥远的过去,那时的火星还有着一层厚厚的大气层,令这颗星球温热暖和,从而使水能够在火星表面流淌。但如今,地表的水消失不见,而

发表于:2018-12-07 / 阅读(150) / 评论(0) 分类 60秒科学

Two adventurers hoping to make the first round-the-world trip using a solar-powered plane have successfully landed in Oman after launching the maiden leg of their global voyage. The two Swiss pilots have arrived in Oman after taking off yesterday fro

发表于:2018-12-11 / 阅读(113) / 评论(0) 分类 英语新闻

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(163) / 评论(0) 分类 英语小短文

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(253) / 评论(0) 分类 新东方背诵文选

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-30 / 阅读(133) / 评论(0) 分类 考研背诵50篇

This is Scientific Americans 60-Second Science. Im Steve Mirsky. got a minute? Earth-like planets have the potential to form around manyand perhaps mostof the nearest stars that are like our sun. Michael Meyer of the University of Arizona announced t

发表于:2019-01-08 / 阅读(160) / 评论(0) 分类 Scientific American(二)月

The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away

发表于:2019-01-08 / 阅读(155) / 评论(0) 分类 Scientific American(十)月

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(226) / 评论(0) 分类 英语小短文

Halfway there, you bump into the Asteroid Belt. It is not like in the movies where you are dodging asteroids at every second. It is a The space is very big and the asteroids are a long distance apart, so you could travel through it quite safely. The

发表于:2019-01-08 / 阅读(130) / 评论(0) 分类 自然百科2012年

AS IT IS 2013-06-14 NASA Scientists Still Dream of, and Plan for, Human Travel to Mars From VOA Learning English, this is As It Is. Welcome back. Im Caty Weaver. On the show today, we look into the future of space exploration. The American space agen

发表于:2019-01-12 / 阅读(124) / 评论(0) 分类 2013年VOA慢速英语(六)月

Juno Spacecraft Enters Jupiter Orbit 朱诺号探测器进入木星轨道 American scientists cheered loudly as their spacecraft, called Juno, entered Jupiters orbit Monday night. Juno, welcome to Jupiter! The scientists are with the U.S. space agenc

发表于:2019-01-12 / 阅读(101) / 评论(0) 分类 2016年VOA慢速英语(七)月

The solar system is a hostile place. Earth is under attack from deadly cosmic radiation. Life here is only possible, because it's protected by the magnetosphere, an invisible force field that cocoons the planet. But new evidence reveals that this vit

发表于:2019-01-22 / 阅读(133) / 评论(0) 分类 自然百科2011年

In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati

发表于:2019-01-22 / 阅读(150) / 评论(0) 分类 自然百科2011年

Young MBAs Compete to Solve Global Problems Solving the worlds most pressing social challenges takes passion, dedication, innovation and a good business plan, which is the idea behind the Hult Global Case Challenge. Hult International Business school

发表于:2019-02-12 / 阅读(247) / 评论(0) 分类 VOA标准英语2011年(十月)

1 ASTRONOMY 天文 astronomy 天文学 astronomical 天文的 astronomical observatory 天文台 astronomer 天文学家 astrophysics 天文物理学 astrology 占星学 pseudoscience 伪科学 cosmos(universe) 宇宙 cosmology 宇宙学 infinite 无限

发表于:2019-02-13 / 阅读(128) / 评论(0) 分类 实用英语

Have you heard the news? We're in a clean energy revolution. And where I live in Berkeley, California, 你们看新闻了吗?我们正在进行清洁能源革命。我住在加利福尼亚州伯克利市, it seems like every day I see a new roof

发表于:2019-02-13 / 阅读(158) / 评论(0) 分类 TED演讲国际问题篇

From VOA Learning English, this is As It Is. Welcome back. Im Caty Weaver. On the show today, we look into the future of space exploration. The American space agency NASA has announced plans for a new effort to study the sun. And, NASA scientists are

发表于:2019-02-16 / 阅读(131) / 评论(0) 分类 英语语言学习

A solar-powered airplane that landed in Arizona last week after a daylong flight from California is now headed to Oklahoma on the latest leg of its around-the-world journey. The file photo shows the two pilots of the Swiss-made Solar Impulse 2 in fro

发表于:2019-02-18 / 阅读(115) / 评论(0) 分类 cctv9英语新闻2016年

The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-02-25 / 阅读(139) / 评论(0) 分类 双语有声阅读
学英语单词
acidophil
analysis of underground water level
anomalous event
apron piece
association for science education
bad segment
Bapt
bathymetric data
brassidic acid
castelo rodrigo
clera
coaliest
coarse rice
compatibility test unit
concentration by electrodecantation
connecting rod with oil passage
control submarine chaser
criminist
crioscopic method
crystallizing tin
daing
dark ride
data item description
Desmospongia
dialing rules
dimensional for-mula
ditiotreitol
dominand
Düdingen
ectocondyle
electro-optic material
epimerize
eyespeck
FDDS
Formania mekongensis
functionism
generic item
guerdonize
gyratory motion
hard-point
homometrical set
Hornsbys
hypoxemic
immunolesion
independent leg jack-up
jera
jockey about(around)
Kiziba
knew nothing about
Lespedeza chinensis
loudspeaking receiver
Machilus multinervia
made our flight
main device scheduler
marmolet
mauf
micromanagers
miniature teaching
municipal banks
N-Oxide
native-mode
nativism
neocapitalist
nontraditionally
Northern Isles
notched-bar bend test
parabola approximation
Pasaje
peach mealy aphid
percentage of possible sunshine
pictorial database technique
pilaf, pilaff
polypropylene
potassium ethyl xanthogenate
power-driven vehicle transport
puozzolana
reflects
sampling cell
scale trap
schlieren stop
scuttlesful
secure boot
see good
series repulsion motor
simple pointed chaeta
snatch a turn
standard product price
stop-clock
strongylote
submarine cable code
syphilitic osteitis
target warker
thoracogastrodidymus
to GAF
top cut method
type a display
univariate statistics
urophlyctis leproides(trabut)magn.
water coolant
wicklein
winding circuit
wrfa