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
AC/A
alcyonne
amphiphilic surfactant
arrestation
assay dish
atmospheric side
be set in concrete
biddulphia dubia
bionomically
boat-yards
bootblock
budget results
bulging of calender bowis
butaprenes
CECOM
coefficient of scavenging loss
coil pasteurizer
cup polishing
Cupromelanterite
dermomuscular
dismantlings
display port
disrespect
dolly set
downhole geophone
dyscoimesis(dyskoimesis)
elastoviscous
Excer process
favo(u)rable tax treatment
Fingerfishes
fluid transmission gear
gas maser
good genius
grammaticizable
guidance station equipment
gyroscope inertia
halloing
halophilic microorganism
hibbler
high-tenacity yarn
hold water ballast
hollow-foot
hollow-spindle
hydrazine fluogermanate
incompensation
inferior ramus of ischium
labour index
Ligularine
Lithocarpus mekongensis
management, network
margoliss
maturnity pen
mearstones
mesodontism
Michigan basement
monthly magazine
much-improveds
Nebraska fern
nervus facialiss
nontippable
North Windham
norwick
nuez
offshore engineering
oleanolic acid
ostridge
outpol
overfalling weir
paleoviruses
parasyndesis
particulate mass analyzer
permanent lunar base
pitch setting lever
plate up
platinum tube
Post. Off.
pre-emphasis of audio frequency
prociphilus piniradius
propogates
reactivity release
reciprocating(-type) pump
retired employee
retromolar tubercles
schmalzs
secular consumption
sehna knot
side-slips
sloping ceiling
Streptoverticillium
swimming-trunks
take a pique against someone
Tandou-Bengo
temposral
the goddess of liberty
thiocarhamide
traffic alert collision avoidance system
undaunting
under voltage condition
unterred
vanikoro cacellata
vapor-deposited coating
with force