时间:2019-02-03 作者:英语课 分类:自然百科2012年


英语课

 It is chemically impossible for methane 1 to survive for long in the Martian atmosphere, so it must have been released recently. 


 
Now what makes methane? Cows make methane? Probably not cows. Oh, microbes, various sorts can release methane, there are a variety of geographical 2 processes, volcanoes can release methane, so the mere 3 fact that there is methane doesn’t say life, but either way, the methane says that Mars is an active planet. It is either biologically active or it is geologically active or both. 
 
The methane release appears to be seasonal 4 and links to areas of suspected subsurface ice, ice found exposed in fresh craters 5, has proven that water lurks 6 not only near the poles but also much closer to the equator, it is pretty clear, that if the Viking Lander had dug just 4 inches deeper, they would have reached this ice and perhaps a totally different conclusion about life on the red planet. 
 
So if Mars has any life at all, whether it is so small you can only see with a microscope, or they had a mammoth 7, it wouldn’t matter to me, it’s the whole question of : is there life at all on Mars. 
 
Either way, there certainly will be life on Mars, the moment the first human traveler arrives. 
 
The fact that there are no scheduled flights to Mars hasn’t stopped people from preparing for the trip, and for a flight like this, planning is everything. And there we go. 
 
In 2009, 6 men walked into a series of connected rooms inside a warehouse 8 in the Moscow suburbs and shut the door behind them for 3 months, they took all their food with them and drank recycled water, the only communication with the outside world was electronic, with a 20-minute/ delay. They were trying to simulate a flight to Mars.

n.甲烷,沼气
  • The blast was caused by pockets of methane gas that ignited.爆炸是由数袋甲烷气体着火引起的。
  • Methane may have extraterrestrial significance.甲烷具有星际意义。
adj.地理的;地区(性)的
  • The current survey will have a wider geographical spread.当前的调查将在更广泛的地域范围內进行。
  • These birds have a wide geographical distribution.这些鸟的地理分布很广。
adj.纯粹的;仅仅,只不过
  • That is a mere repetition of what you said before.那不过是重复了你以前讲的话。
  • It's a mere waste of time waiting any longer.再等下去纯粹是浪费时间。
adj.季节的,季节性的
  • The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
  • The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。
n.火山口( crater的名词复数 );弹坑等
  • Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》
  • The battlefield was full of craters made by exploding shells. 战场上布满弹坑。 来自《现代英汉综合大词典》
n.潜在,潜伏;(lurk的复数形式)vi.潜伏,埋伏(lurk的第三人称单数形式)
  • Behind his cool exterior lurks a reckless and frustrated person. 在冷酷的外表背后,他是一个鲁莽又不得志的人。 来自《简明英汉词典》
  • Good fortune lies within Bad, Bad fortune lurks within good. 福兮祸所倚,祸兮福所伏。 来自互联网
n.长毛象;adj.长毛象似的,巨大的
  • You can only undertake mammoth changes if the finances are there.资金到位的情况下方可进行重大变革。
  • Building the new railroad will be a mammoth job.修建那条新铁路将是一项巨大工程。
n.仓库;vt.存入仓库
  • We freighted the goods to the warehouse by truck.我们用卡车把货物运到仓库。
  • The manager wants to clear off the old stocks in the warehouse.经理想把仓库里积压的存货处理掉。
学英语单词
adjectician
aimlessnesses
ammonium nitrate explosive
arduenna
asspulls
baby-bond
back titration
balanceable
bary-
be married to
big six
Biliran, Prov.of
bioadsorption
blue fleabanes
Bow River
calcium sucrate
carob seed
character-indicator tube
chenards
chrysomphalus aurantii maskell
Coccidiomorpha
consensing
crepature
cumylene
deformation-gradients
dial-up network
Didymousporeae
Diplospora mollissima
duchesse potatoes
eaux-de-vie
ecosexuality
electric soup
elevator ladder dredger
emitter-coupled logic driver
enheritance
equine encephalitis virus
Fibonacci numbers
four - leaf clover
Frunze
galactographies
Gijzegem
gochi
gone bankrupt
hairstreak butterfly
hernio-enterctomy
Hohenzethen
hydrologic system
indirect moisture determination method
information broker
ion pair ionization
irrigation siphon
jeyhun (dzheykhun)
joons
jump pass
lady smock
lever arm relation
light pumping semiconductor laser
lose the number of one's mess
Luken's band
malesky
marine morphology
median toxic dose
medicinelike
metameric state
micro-ecology
muscular strains in shoulder region
myxoendothelioma
Naousa
nbcw
nine-to-fivers
Novoaydar
pellinis
phytophotodermatitis
propodoventral enantiophysis
propylite
purpuroxanthic acid
rectal alimentation
refrigerator mothers
retched
rule schemata
s.hominis
seasonal product
shaped-charge antitank missile
shortage risks
Sidli
single-origin
sluicer
spacer spark coil
starting button
starvelings
telecomms
tie game
train line circuit breaker
ugly betty
umbellifers
unprohibited
upstream shell
varicellovirus equine rhinopneumonitis
vernacular fiction
vmpd
working orthogonal plane
xerocracy