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
AAGC
Aeschynomene americana
Allium schoenoprasum L.
amalgam plugger
application-development language
artificial stocking
bandage gauze
bat ribbon
binary synchronous device data block
bind-days
boysen berry
Brissaud's dwarf
chemical anticarcinogenic drug
chemoconvulsant
cherryville
Chrysomelidae
concolor
counter sample
cupids
dichloramine
disodic alkaliine
drill-sharpening machine
Echogynography
ecotonal
electrochemistry at liquid-liquid interface
electronic sign
Entale
extraneous term
fenoxazoline
fine ream
foamed polystyrene chaplet
garage shop
genus epipactiss
genus Sagina
gleewoman
haroutounian
heteropolyanion
homotopy type invariant
hot-finished material
Idb-1016
idea champions
incomplete compaction
injurious weed
isolar
jet cutting car
junta
ketchuppy
leptosols
load bearing characteristic
magnetization curve
medicinal perfume
methyl-1-testosterone
Midgard, Midgarth
mikester
military characteristics
monkey bread
moon trefoils
motor timer
mulesing
multiple-reclosing breaker
nuclear-level density
off-set seismic operation
optical fiber source
oral traditions
overfarm
overparameterize
oximctry
parachute troops
partial cracking
piston ring groove cleaner
Ponte di Legno
portal-type frame
pre-established harmony
quicktongued
ranque
rascally
salvage and salvage charge
sharpness of vision
Ship's Sinking
sovann
spiroplasma
Spy Wednesday
stamate
teleprocessor
Theilman
thiocolchicine
thread fasteners
tibetan high
Tiedemann's nerve
to pop the question
Transdanubia
trial by media
unstainable
vapor compression refrigerating machine
vertimeter
VWAP
Waddingworth
West Midland
wet snow
wet-chemical technique
white walnuts
wood pattern