时间:2019-01-23 作者:英语课 分类:探索与发现2014年


英语课

 Evidence of the first oxygen in the atmosphere. The gas was released by a humble 1 microscopic 2 living organism called cyanobacteria. Well it turns out cyanobacteria are the only things that can actually produce oxygen, so we know that at some point cyanobacteria colonized 3 enough of the planet in order to produce enough oxygen that it became resident in the atmosphere. 


 
As the microbes multiplied and spread, the gas built up in the air, transforming the planet in a process known as the Great Oxidation Event. 
 
Oxygen is very powerful. The world got turned upside-down. Everything has to begin to adapt to now a completely new atmosphere where oxygen is dominating.
 
First the oxygen reacted with the oceans, causing iron within them to form rusty 4 deposits on the seafloor. Then its effects reached dry land. It reacted with soil and rock, giving them a reddish, rusty tinge 5. And once these minerals had absorbed their fill of oxygen, the gas began to gather in the atmosphere with dramatic consequences for life. 
 
Complex animals could have much higher metabolisms 6 because of the sheer potential that oxygen provided for them, a whole different kind of evolution was able to take place. Powered by oxygen, life evolved from single-celled organisms to complex animals.

adj.谦卑的,恭顺的;地位低下的;v.降低,贬低
  • In my humble opinion,he will win the election.依我拙见,他将在选举中获胜。
  • Defeat and failure make people humble.挫折与失败会使人谦卑。
adj.微小的,细微的,极小的,显微的
  • It's impossible to read his microscopic handwriting.不可能看清他那极小的书写字迹。
  • A plant's lungs are the microscopic pores in its leaves.植物的肺就是其叶片上微细的气孔。
开拓殖民地,移民于殖民地( colonize的过去式和过去分词 )
  • The area was colonized by the Vikings. 这一地区曾沦为维京人的殖民地。
  • The British and French colonized the Americas. 英国人和法国人共同在美洲建立殖民地。
adj.生锈的;锈色的;荒废了的
  • The lock on the door is rusty and won't open.门上的锁锈住了。
  • I haven't practiced my French for months and it's getting rusty.几个月不用,我的法语又荒疏了。
vt.(较淡)着色于,染色;使带有…气息;n.淡淡色彩,些微的气息
  • The maple leaves are tinge with autumn red.枫叶染上了秋天的红色。
  • There was a tinge of sadness in her voice.她声音中流露出一丝忧伤。
n.新陈代谢( metabolism的名词复数 )
  • Garden snails are evolving slower metabolisms. 花园蜗牛新陈代谢进化缓慢。 来自互联网
  • Elite swimmers tend to be born with certain advantages, such as superefficient metabolisms. 精华的游泳者趋于与某个优点出生,例如superefficient新陈代谢。 来自互联网
学英语单词
able rating
absolute measurement method
amphiprion perideraion
application for admission
approximate market
aquifar test
attachment site
back-basket store
backswimming
bin system
bituminic
Boolean operators
bother oneself with
Brummagems
Caledon River
chronic heat exhaustion
coddler
common base current gain
concurrent negligences
conduit connection
cyclic ignorable coordinate
dark-sided
deacetylranaconitine
deratization certificate
double resonance
Dänischenhagen
effused-reflexed
equal aquals
equiblast cupola
extra-quranic
fixed points method of calibration
free storage period
frost fog
gas show
green colour
greenlit
Gris-PEG
hamlock
heart-leaved aster
horizontal resolution bars
hot-mix plant
humitas
hypothec bands
income tax on joint venture
indirect analog
individualized manpower training
inquisitivenesses
integrated software line
Interdev
ipropethidine
levy en masse
logistic regression
machine-element
MacS.
make a poor appearance
medical-devices
milli-webers
Moorewood
moorstone
nanobe
neocolonialisms
neutron fluxes
newricall
numerical subroutine library
Orchis kunihikoana
origin of the atmosphere
pale-golds
para-pentyloxy-phenol
payment in arrears
peroxybenzoic acid
pharyngeal opening of eustachian tube
poisonou
propargylchloride
rotary cup atomizing oil burner
rouke
round-necked
sack lunches
sailwing wind generator
sand-castles
self-incompatibillity
sideyways
simple chancre
slow sticking
spanghewed
structural var (svar)
swell-shrink characteristics
tannin idioblast
taran
tedd
tensile stressed skin
third-generation phototypesetter
three-part harmony
transitivity of equivalence relation
ultrahigh voltage transformer oil
uniformly placed
use bit
vicka
vidas
weed control chemicals
wishful thinking
Yerkish