音标:[ˈdɪŋi: ˈjeləu həˈraizən] ;
暗黄色土层

Yellow Bird Yellow bird, up high in banana tree. Yellow bird, you sit all alone like me. Did your lady friend leave your nest again? That is very sad, makes me feel so bad. You can fly away, in the sk

发表于:2018-11-29 / 阅读(338) / 评论(0) 分类 英文歌曲第三辑

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(205) / 评论(0) 分类 火星生命

These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is N

发表于:2018-12-07 / 阅读(225) / 评论(0) 分类 火星生命

I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.

发表于:2018-12-07 / 阅读(213) / 评论(0) 分类 火星生命

In 2001 a new NASA probe was launched. Called Odyssey, it was sent to Mars to carry out the most detailed analysis ever of the planet’s surface. What it has discovered may be about to answer one of

发表于:2018-12-07 / 阅读(187) / 评论(0) 分类 火星生命

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(193) / 评论(0) 分类 火星生命

Rice had seen the same thing in Iceland, one of the few places on Earth with similarities to Mars. It too is extremely cold, and most of the water is frozen into glaciers. And also like Mars, buried u

发表于:2018-12-07 / 阅读(242) / 评论(0) 分类 火星生命

For Mars to have rivers, it must once have had streams, rain, clouds and an atmosphere, a planet just like the Earth today-if these were rivers. They had to be sure. The answers would come in 1998 wit

发表于:2018-12-07 / 阅读(243) / 评论(0) 分类 火星生命

William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in

发表于:2018-12-07 / 阅读(215) / 评论(0) 分类 火星生命

He was driving home one evening, on a two-lane country road. Work, in this small, mid-western community, was almost as slow as his beat-up Pontiac. But he never quit looking. Ever since the Levis factory closed, he'd been unemployed, and with winter

发表于:2018-12-12 / 阅读(240) / 评论(0) 分类 阅读空间

音乐天堂:Yellow蔡健雅 很多人在翻唱这首英文歌曲《Yellow》,但这确实是与众不同的一版,令人仿佛置身音乐天堂。别有韵味的女声,像是在对天空轻轻诉说...微微感动。 Look at the stars, Look

发表于:2018-12-14 / 阅读(216) / 评论(0) 分类 E乐吧

'Deepwater Horizon' Honors The Sacrifice Without Sacrificing The Action play pause stop mute unmute max volume 00:0003:02repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update you

发表于:2018-12-18 / 阅读(181) / 评论(0) 分类 2016年NPR美国国家公共电台10月

Of course, any terraforming is still a long way off. The next few expeditions to Mars will definitely be made by machines. NASA, are sending 2 rovers, capable of travelling over 100 meters a day in se

发表于:2019-01-02 / 阅读(215) / 评论(0) 分类 火星生命

Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t

发表于:2019-01-02 / 阅读(246) / 评论(0) 分类 火星生命

Life on Earth is basically proteins and DNA, so we can wonder if there is life on Mars will also be DNA and proteins, the same type of DNA, the same type of proteins. One might think that DNA is such

发表于:2019-01-02 / 阅读(207) / 评论(0) 分类 火星生命

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(250) / 评论(0) 分类 火星生命

But they never got there. The first disappeared into deep space. Another missed its target when its coordinates were confused. One NASA control center was working in metric, the other in feet and inch

发表于:2019-01-02 / 阅读(274) / 评论(0) 分类 火星生命

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

发表于:2019-01-02 / 阅读(229) / 评论(0) 分类 火星生命

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

发表于:2019-01-02 / 阅读(230) / 评论(0) 分类 火星生命

He was driving home one evening, on a two lane country road. Work in this small mid-western community, was almost as slow as his beat-up Pontiac. But he never quit looking. Ever since the factory closed, he'd been unemployed, and with winter raging o

发表于:2019-02-18 / 阅读(314) / 评论(0) 分类 阅读空间
学英语单词
1H-NMR
anode disk
apicoplast
apneusis apneustic breathing
area variable
artificial distintegration
attenuation frequency distortion
banquettes
baryte (barite)
bend before sb
bent gouge
biomechanical deposit
blinded with science
bluetrees
bo'sun
body combat
booshway
bootstrap technique
burring toothing
chemico-thermal treatment
ciardulli
clausura
concolino
continuous versus discrete growth
copunctual
costectome
count-down
crater terrace
crescent-type arch bridge
cyberrays
deckchair
dispersed droplet flow
dropped-waist
elephantlike
eliquidate
Enzonalasporites
faustiest
fernbank
flat filled weld
floated concrete
Fort Chimo
frigidaires
graymuzzle
graziane
gun-belt
heat hemolysis test
individualizes
jack boards
Kuttawa
labrador moonstone (labradorite)
left hand side production
libelleth
management of border crosser for visiting relatives
metal porcelain crown
method of charging
multiomic
non-resister
Nordic skiing
not joking
nozzle sac
Omphale
open-airness
pathogenic entero becteria
permanent water ballast pump
physical basis of heredity
phytotreatment
pipe network technical management
Pissa
polar ship
polyester vat dyes
porphyrin bodies
posterior meningeal artery
project center
protein metabolism
Qanābir
quantitative methodology
quarry run rockfill
reactive deep blue
rest periods
rhododendron sutchuensis franch
saginations
Saxifraga lepidostolonosa
semilinear transformation
sextennially
site quality of locality
Spumellaria
stagefrequency curve
start-finish signal
steam air ejector
steep-grade tunnelling
stomachic stimulant
Swan R.
swdl
tape-reading punch
tapetal plasmodium
Thang Binh
tirone
top over terve
trialframe
ventilation network map
Winona State University
within reach