时间:2019-01-22 作者:英语课 分类:自然百科2011年


英语课

 They won’t be strong enough to challenge for females until they are five years old. Til that day, they will regularly hone their sparring skills. They will stay with the group until they mature. 


 
During the long winter chill, Lake Baikal transforms from a flat expanse into cut crystal. Movement across its huge surface ruptures 1 and shifts the ice layers. 
 
Adult seals spend the winter alone, mostly in the water. But come April, they will have some company. This pup is the first of the season to emerge. Weaning for Baikal seals is abrupt 2. The mother starves herself during the eight weeks of feeding the pup in the snow den 3, then she simply abandons it on the surface. 
 
Soon the icescape will be dotted with other emerging pups. Already this one is eager to explore its world. A layer of fat keeps it warm above and below the waterline, where icy cavens create a frozen paradise. 
 
But Siberia’s chilling reputation tells only half the story, the beauty as expansive as its borders and the diversity to rival any place on earth. This Russian land, mountains and lakes, forests and plains can only be described in a single surprising word--Siberia.

n.(体内组织等的)断裂( rupture的名词复数 );爆裂;疝气v.(使)破裂( rupture的第三人称单数 );(使体内组织等)断裂;使(友好关系)破裂;使绝交
  • Fault ruptures may consist of a single narrow main break. 断层破裂可能只包括单独一条狭窄的主裂隙。 来自辞典例句
  • The dry seed ruptures and the green leaf uncurls. 干瘪的种子裂开了,卷曲的绿叶伸展了。 来自辞典例句
adj.突然的,意外的;唐突的,鲁莽的
  • The river takes an abrupt bend to the west.这河突然向西转弯。
  • His abrupt reply hurt our feelings.他粗鲁的回答伤了我们的感情。
n.兽穴;秘密地方;安静的小房间,私室
  • There is a big fox den on the back hill.后山有一个很大的狐狸窝。
  • The only way to catch tiger cubs is to go into tiger's den.不入虎穴焉得虎子。
学英语单词
academic aspiration
amomodendrene
arch tube
assertive behavior
baby cereal
beam-restriction device
bembeneks
bent plywood
Blavatskyan
bolinas
Bondiana
book-stand
brem
bucktoothed
burres
cacheriss
canyon
Carex longpanlaensis
Carya tomentosa
colossal tanker
conditioning zone
countdown procedure
crackline
creoform
croystron
cupola hearth
dands
dig sb in the ribs
dominant column operation
Dromiceidae
ecphories
edkins
eugeanticlinal ridge
external conditions (for wind turbines)
extraplellral pneumothorax
feed control
fenuron-tac
field missile
fogage
foreign tourists
Fregean
freon vapor
furzeling
Gies' biuret reagent
hearth construction
hereditary unconjugated hyperbilirubinemia
hikeathons
hollow-shaft
Hypericum sampsonii Hance
hyster arch
jugoslavias
lin-log
loliism
louse up
marketing principle
mass rapid transit law
microbiological fouling
Misheal
mixer noise
multi-strand
mycotic sycosis
nanospray
needle-cast of conifers
negative priming
network status
nucleoanalysis
occasionless
ordinal variable
pebble apron
production and cost statements
protestable
radio relay set in yard and station
radius of stereoscopic vision
Rehderodendron macrocarpum
Ribadesella
rivus lacrimalis
savich
schemies
segmental coupler
shuffleboards
slots
spandrels
specificity of catalyst
spousages
stable money
stopping cycle
suction catheter
suprasymphysary
tor-
transistor demodulator
transition cell
Trollinger
tuned-reactance grounding system
tzakis
vagino-
vanbrughs
vapor point
Vislanda
william henry beveridges
worth (sb's) while
xenobiology
Zinab