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
.so
aged deterioration
alice b. toklass
anonymous FTP(file transfer protocol) server
artificial hole set
Baker,Newton Diehl
base hospital
battery elevator
be under the gun
beament
blindman's holiday
brisancemeter
callender
carcinoplax suruguensis
cedar nuts
Chakravakam
commercial burner oil
composite debonding
confinements
coordination numbers
counterfacture
Cryptococcus psychrophylicus
delayed radiation activity
designing wind speed
detention on remand
dispair
economic austerity
electronic respirator
experimental medicine
Ferro-picotite
foremost portion
high power sweep generator
imparadising
impermeable
instantaneous deviation control circuit
interrupt driven i/o
Iridill
just-in-time (jit)
keos
kitchen roll
langas
languescent
laryngotrachebronchoscope
laser phototypesetting system
leptosidin
leveling method
Liparis campylostalix
longitudinal septum
mackerelsnapper
marble's reagent
maximum stream flow
menometrorrhagia
mesenteric plexus
meter opening reading
milk-bottle bobbin
mission control center
molecular excitation
Morone interrupta
mosaic funli
municipals
Myriophyllum exalbescens
netcode
NOCTI
nonlinear dynamic system
obstruction signal button
one hundred thirty-five
ostraceous
paiutes
panhysterocolpectomy
petalonia fascia
Pternohyla fodiens
Pteropus capestratus
radicular arteries
rape-cake
refilling of ballast
rothr
second throat
secondary somatic hermaphrodite
segment erection machinery
sentry boxes
series compensated amplifier
shear-type drill boom
shipboard supervision
size selector
sociogroup
struthers
surface acoustic wave oscillator
surgical physiology
suspension type log haul-up
target designation mode
telemail-telephone set
tertiary channel
the prince
these things are sent to try us
tikus
total payments
uncrinkled
unmouthpieced
weekliest
weight molar concentration
wyndland
yessed