指示面

Into the West Lay down your sweet and 1)weary head Night is falling You’ve come to journey’s end Sleep now Dream of the ones who came before They are calling From across the distant shore Why do y

发表于:2018-11-28 / 阅读(260) / 评论(0) 分类 疯狂英语2004年

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(141) / 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(165) / 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(139) / 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(130) / 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(123) / 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(159) / 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(163) / 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(152) / 评论(0) 分类 火星生命

'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(127) / 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(142) / 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(162) / 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(153) / 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(172) / 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(182) / 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(176) / 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(166) / 评论(0) 分类 火星生命

RACHEL MARTIN, HOST: Eight years ago today, an explosion on the Deepwater Horizon drilling rig killed 11 people and led to a massive oil spill in the Gulf of Mexico. The accident prompted big changes in how the country regulates offshore drilling. No

发表于:2019-01-16 / 阅读(152) / 评论(0) 分类 2018年NPR美国国家公共电台4月

模仿句子:But there is also another voice on the horizon, a new champion for a different way of thinking. 原文翻译:但目前还有另外的声音,主张捍卫新的思维方式。

发表于:2019-01-23 / 阅读(129) / 评论(0) 分类 英音模仿秀

今天我们要学的词是indicator。 Indicator, 指示,信号。20国集团财长在巴黎开会并达成协议。 The agreement lays out a list of indicators that can be used to monitor the progress made by member countries in reducing imbalanc

发表于:2019-01-25 / 阅读(131) / 评论(0) 分类 英语每日一词
学英语单词
-ility
1-ethylnaphthalene
3-Nitropentane
aliped
All Hallows' Day
arenaceous limestone
audience-as-market
backward-wave tube amplifier
barkhor street
Barthi
bearing diagram
Bearskin Lake
bureaucratic
calorimetric diagnostics
castras
clean water basin
closed bead
co-altitude
conceal mineral deposits
condenser hotwell effluent
credit memorandum
curing time
cyclic quardrilateral
dailies
dog-cart
double groove joint
egrets
erinle
eumunida parva
fatiscence
fire occurrence map
fiscal transfers
fleme
fulling hammer
Glydiazinamide
Grandjean-Cano wedge
greco-macedonian
greylag geese
gyps fulvuss
have connection with
have illicit relations with a foreign country
hypercompute
Inkan
joly frequency doubler
kick a goal
laboureur
lady of one's heart
light weight cement
lithium nitride
local traffic revenue
Maam Cross
machens
maldistribution of ventilation
manual load key
medium-range bomber aircraft
memory paging
mitolactol
Mohaka
Noma Prize
non-physically
oligopolar
ortho-mcneil
overissuing
percrystalline rock (c.i.p.w)
physio-stimulator
pressure distribution of foundation
pulley tap
pumplike
quantity of information
radula philippinensis
radwaste control panel
rhinodacryolith
Rincón Quemado
riped
runs about
single face planer
Sinologue
snap flask sand mold
social eugenics
song form
ST_science_measurements-in-general
steric conformation
sulfoforms
superchunk
teenicide
three-term
tide-producing potential
transformer with ring core
trap structure
trig
triphenylsuccinic anhydride
twin-trailer train
ultrasonic test method
under disfavour
unextortionate
unipartite
volatile variable
wind stick
wodanium
Xanthe
zambra (spain)
zamium