时间:2018-12-26 作者:英语课 分类:自然百科2011年


英语课

 But he soon wises up. The thick neck absorbs the blows .The delicate brain is cushioned beneath the core of hollow horns.


 
He defends his claim and relocates his harem. But one challenger won't give up so easily. They can crash at nearly 100 km/h. Eventually, a final blow signals the end.
 
When spring comes to Siberia, the floodgates open. Over millennia 1, racing 2 waters have cut swathes through hard rocks and pine forests. In Southeast Siberia, much of it runs to the seventh largest fresh water lake in the world, 636 kilometers long and 80 kilometers at its widest, this is Lake Baikal. This record- breaking lake holds 20% of the earth's fresh water as much as all five of America's great lakes combined. 
 
But with the water temperature rarely rising above eight degrees Celsius 3, it is not as inviting 4 as it looks. But that's ok for the residents--the only fresh water seals in the world, the Baikal seals.
 
No one knows how they got to the enclosed lake. One theory is that they evolved from ringed seals half a million years ago when the Arctic Ocean extended further into Siberia.

1 millennia
n.一千年,千禧年
  • For two millennia, exogamy was a major transgression for Jews. 两千年来,异族通婚一直是犹太人的一大禁忌。
  • In the course of millennia, the dinosaurs died out. 在几千年的时间里,恐龙逐渐死绝了。
2 racing
n.竞赛,赛马;adj.竞赛用的,赛马用的
  • I was watching the racing on television last night.昨晚我在电视上看赛马。
  • The two racing drivers fenced for a chance to gain the lead.两个赛车手伺机竞相领先。
3 Celsius
adj.摄氏温度计的,摄氏的
  • The temperature tonight will fall to seven degrees Celsius.今晚气温将下降到七摄氏度。
  • The maximum temperature in July may be 36 degrees Celsius.七月份最高温度可能达到36摄氏度。
4 inviting
adj.诱人的,引人注目的
  • An inviting smell of coffee wafted into the room.一股诱人的咖啡香味飘进了房间。
  • The kitchen smelled warm and inviting and blessedly familiar.这间厨房的味道温暖诱人,使人感到亲切温馨。
学英语单词
abetalipoproteinemia
abuelas
acid-resistant coating
acoustic signalling system
agranularity
allowance for contraction
anchor relay
anticommunism
Astwood
auricular docimasia
balanced pulley
Balashi
Bayesian classification
Bayιndιr
benthamism
biomonitoring
blackfold
burseed
business applications
cadit quaestio
carbapenams
cell mass
chavan
computer output microfilm recorder
control-based
copy picture
couleur
counter-salient
Crateva unilocularis
cyclopiazonates
Dedicated capital
development clause
diadochokinesia
different form
discovery request
double inlet centrifugal blower
down hill
drop-side truck
efficient estimate
eicons
electron attractor
entrusted agent
Epfendorf
epidemiological investigation
equatorial stars
file index
fire-and-brimstone
fully concatenated key
galgal
great man theory
Gurati
H. Rept.
Hammerfest
hieronosus
high-speed peripheral
isophorol
jump on positive
kankkunens
knock-boring machine
light mud
light-sensitive resistor
limewashed
liujinyinite (uytenbogaardtite)
Lubsza
lujon
milk cooler
monoderivatives
movable tube sheets(heat) exchanger
multiway host processing
napet
narcoterrorists
non-bank
Ombalantu
Oppenheimer-Volkoff limit
optimizings
overflow field
paper tape coder
pleuronect
presegmenter
pterodactyl
public works relief bill
put in your two cents worth
quinol
quinotoxin
reality-distortion
reinz
remote batch access
removing device
screen filter
scrimples
secondary receptors
selforganization
semicanal for auditory tube
slatted belt and flicker type distributor
smart devices
standard candle
thankyou
thermal substation
trebilcock
try best to
vibratory feed unit
wooden bead door screen