时间:2018-12-26 作者:英语课 分类:自然百科2012年


英语课

 Few have witnessed this moment, for the male, his only tender encounter in an otherwise solitary 1 life. 


But it doesn't last long. A rival suitor has also caught the female's scent 2.


 
Courtship has to be put on hold. He must fight for his rights.
 
He sees off this first challenger without injury to either party, but bloodier 3 battles are to come. 
 
Another battle won, though he has been slightly injured. He hurries back to his mate, but now she seems to have lost her enthusiasm. Female polar bears are high maintenance. 
 
Wherever she goes, he will follow, mating with her when she allows and guarding her at all times. Over the next two weeks, the male sees off many rivals, but the battles take their toll 4 on him.
 
He is almost spent, but he has ensured that no other bears have mated with his female.

1 solitary
adj.孤独的,独立的,荒凉的;n.隐士
  • I am rather fond of a solitary stroll in the country.我颇喜欢在乡间独自徜徉。
  • The castle rises in solitary splendour on the fringe of the desert.这座城堡巍然耸立在沙漠的边际,显得十分壮美。
2 scent
n.气味,香味,香水,线索,嗅觉;v.嗅,发觉
  • The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
  • The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。
3 bloodier
adj.血污的( bloody的比较级 );流血的;屠杀的;残忍的
4 toll
n.过路(桥)费;损失,伤亡人数;v.敲(钟)
  • The hailstone took a heavy toll of the crops in our village last night.昨晚那场冰雹损坏了我们村的庄稼。
  • The war took a heavy toll of human life.这次战争夺去了许多人的生命。
学英语单词
air traffic control (atc)
aribine
automatic cluster remover
axial elements
baffle mixer
barbed fence
Beat.
board on board
boffos
by comparision
capital of Latvia
cellular striation
Cherasco
chimney ventilation
chromophil cell
combustor outer casing
copygirls
csk
data buoy system
deformation method
dentilinimentum
development personnel
diffusion coupler
digital fire control computer
dismountable dredger
Diégo-Suarez
dooth
elaterid beetle
epochal
epulentic
equalized sidelobe antenna
external trade shipment
Fada, Druim
figure ground
filing coats
firing expansion
Gothlandian
halogenated hydrocarbon system
have on sale
heffron
ideation
IFPS
imaginary characteristics
indoramine
international river
Ivandidi
Le Russey
line serving siding
lowest passenger deck
lumped reactor
magnetohydrodynamic generator
meat-packings
memory-mapped
moment due to elevator deflection
motive force
MRAs
neopuritan
Nodi lymphatici inguinales superficiales superomediales
Oum Semaa
outer case
plumbgomme (plumbogummite)
pors
post-cold war
pulsed voltage
quadrisonic
quaking mire
ratio of crushing
risk neutral parties
ruralisms
Sahaptin
satavaptan
single order
single-figure
sisal hemp
slide vane pump
stainless steel helices
status nervosus
stereocontrolling
strikes cluase
styleth
subluxation of talus
subsegment counter
tetraazacyclic
thermoresistant
TL (total load)
topographic rise
trabeculae corporis spongiosi
transfer of muscle
treatment format
tuberculosis of lunge
turmeric test paper
unmarked nonterminal
unmitigatedness
viscose sponge
vision amplifier
wasshe
weak-hearted
weaving wire
white slave trffic
wild kingdom
wimblet
zehrer