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
a baller
acetate fiber
all-round skilled labor
anecdotes
Aqilonian
architectural terra-cotta
asuridia kishidai
bank-robber
Berchogur
boxcar figures
bregirdil
C. H.
Callendar, Hugh
carry into effect/practice
chenhansa
cicatrix keratoses
circumference mode
clbuttic
comes through
Comet Tago-Sato-Kosaka
Coupar Angus
dehydroepiandrosteronesulfate
demetin
design ratio
difford
dismultation
drift load
economics of urban land
eger (cheb)
electrotherapeutics
environmental quality assessment
excression
extracorticospinal tract
fifty-million
flocculus
fried ox tongue
gang-days
geranium tripartitum r. kunth
goods of first order
graded down
Gtucocorticoid
Hammadiye
hemihypertrophies
hojo
holocellulose
horn bowsprit
idioadaptive evolution
infallible
interfirm
intermediate freight
iron screw
isoadrenaline
jubilating
kissell
lagging phase angle
lig.
Luisia filiformis
lunatic so found by inquisition
mean lateness
memory-mapped file
mental science
microbial
miscegenates
mouht
Mus.B.
National Economic Commission
natural background analysis
nested subroutine
new physics
non-procedural language
nondelinquents
nonrandom structure
Osci
parallel field
photosensitise
polar coordinate paper
popillia quadriguttata
purified oil service tank
quakeproof
reflatten
restraint upon anticipatin
route selection of heat-supply network
satellite-buoy communication
Selden, John
Senecan stage
slip detector
smudgily
sodium 4-amino-2-aurothiosalicylate
solar thermal pump
subdistricts
Tel-E-Ject
test splice
thymotinic acid
transient repression
tRNA
twisted stomach worm
ultrasound pattern
viasa
voice-response
warsler
WiMedia
wing tip rake