时间:2019-01-22 作者:英语课 分类:英语时差8,16


英语课

Middle Aged 1 Wolves Picture an elk 2 walking through the forest, looking for some berries to nibble 3. Then, suddenly, a pack of wolves leaps from the bushes, surrounding the startled animal. The wolves close in. The elk looks for an escape route, but the predators 4 tighten 5 the circle. The elk is a goner, right? Maybe. But it depends partly on the age of the wolves. According to one study, wolves’ hunting skills peak around age three, and then their hunting prowess starts to decline. By the time wolves reach old age, around the age of six, they’re no longer the same hunters they were as youngsters. Why ?Because unlike lions, tigers, and other large predators, the average wolf doesn’t have the bulk or attributes to take down large prey 6 with a single blow. Wolves rely more on athleticism 7 and endurance to bag elk. And like most athletes, wolves’ physical abilities decline with age. Once their skills erode 8, wolves aren’t much good as hunters. So older wolves are good for elk. The study found that the older the average wolf population in an area, the more elk there are still around. When the wolf population skews younger, more elk bite the dust.



adj.年老的,陈年的
  • He had put on weight and aged a little.他胖了,也老点了。
  • He is aged,but his memory is still good.他已年老,然而记忆力还好。
n.麋鹿
  • I was close enough to the elk to hear its labored breathing.我离那头麋鹿非常近,能听见它吃力的呼吸声。
  • The refuge contains the largest wintering population of elk in the world.这座庇护所有着世界上数量最大的冬季麋鹿群。
n.轻咬,啃;v.一点点地咬,慢慢啃,吹毛求疵
  • Inflation began to nibble away at their savings.通货膨胀开始蚕食他们的存款。
  • The birds cling to the wall and nibble at the brickwork.鸟儿们紧贴在墙上,啄着砖缝。
n.食肉动物( predator的名词复数 );奴役他人者(尤指在财务或性关系方面)
  • birds and their earthbound predators 鸟和地面上捕食它们的动物
  • The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
v.(使)变紧;(使)绷紧
  • Turn the screw to the right to tighten it.向右转动螺钉把它拧紧。
  • Some countries tighten monetary policy to avoid inflation.一些国家实行紧缩银根的货币政策,以避免通货膨胀。
n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
n.运动竞赛,崇尚运动,竞技热
  • He brings defense. He brings talent. He brings athleticism. That's a lot. “他带来的防御,他带来了人才,他带来了身体,这是很多”。 来自互联网
  • Each of these sports isn't won through sheer athleticism alone. 每个体育项目无法凭借纯粹的运动能力而获胜。 来自互联网
v.侵蚀,腐蚀,使...减少、减弱或消失
  • Once exposed,soil is quickly eroded by wind and rain.一旦暴露在外,土壤很快就会被风雨侵蚀。
  • Competition in the financial marketplace has eroded profits.金融市场的竞争降低了利润。
学英语单词
absolute defense
admit to
Aerzen
Afrasian language
agency for healthcare research and quality (ahrd)
aircraft parking
Alanson's amputation
Albright syndrome
amplitude of resonance
antenna foundation
atmospheric perspective
basic graphic extensions
Belmopan
betow
binding attachment
Brucea javanica
cell motor
closed amortisseur
cocktail party effect
coffee creams
Commiphora myrrha
comparable with
competitive positioning
country collection
Cranihemals
cryo-milling
defo
dibutyl thiophosphite(DBTP)
dual federalism
dysgeusis
encompass system
fixed open hearth furnace
fly-wheel type friction welding
foil-borne
forestallest
formal languages
formation axis
fortuituous
granular fracture
hand-feed pump
high alkalinity
hoaxers
hydrophone tank
in apposition to
in times to come
individual ergodic
Ineuil
infinite extent
innermost DO range
International Marine Radio Co.
IPCC
isentropic motion
isolytic
jenequen
keff
key-schemes
killer factor
lammergeiers
last spring
low-cost housing
lysenkoes
magnetic stripe card reader
MUAMC
My Hung
neo-colonialisms
nonassociative operator
nonchanged
nordstroms
Olympianism
p'o ti yu
parallelarity
Petrohué
physiological stress
picrolite
plate follower
post-trematic branch
pressure domes
rapid river
rapid scanning infrared spectrometer
reality of law
redfree
riverboating
ruptural
satellite dishes
schwarzbaum
scuts
single rectification column
Soilbrom 85
speak true
spectral phonocardiograph
Sterlibashevo
swayne
tack welded hafnium crystal bar electrode
tawakoni l.
tea-times
Tigharry
tricarboxylic acid cycle
tweeked
underwater telephone
unliquidated encunmbrance
ventriculo-atrial
vesicularia flaccida