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
abessive cases
Acholeplasmatales
adiabatic cooling
Admiralty unit
alloplastics
anelastic material
arithmetic square root
Bacillus ovatus parvus
barani,baroni
base content
blacksmith's slag
boot block
bubbler tube
burn plants
Cadalen
calculous pyelitis
cascade speed control
Chacapa
chromatic modulation
Copernico-elliptical
county-seat
damkohler's first similarity group
de movo synthesis
de volet pt.
distomedially
double harelip
electrooptical countermeasures receiving set
ente nazionale italiano di unificazione
excernant
expansion-loss
feed-water supply system
Flores Man
fodderbeet
free boat
gapiks
gift registry
gumbyhead
half-fresh fish
heredoimmunity
high-definition detector
hook poker
hook-and-bullet
Horikawaea
hygienic cooling mat
hypericum taihezanense
hypocolpus abbotti
ice hockeys
impeller chimney
infant schools
insitions
internal program representation
kerbsides
love-acts
lucicutia polaris
make final
marine pharmacology
martec
microeye
Morton Bank
Mātipāra
nation-wide
negative ion beam
noxon
nucleation and growth
oblique lattice
on-base
oxyhalogenide
Pedicularis integrifolia
peripheral conversion program
PID (proportion,integral,differentiation)
pneumatic handing
pocomoke
potassium tert-butoxide
red weakness
rivet weld
salamandrin
salvinioides
Sanders bed
sard
scatter communication channel termination
selection as sacrifice
semi-circular drain
servicingtechnique
sexualising
shackle hook
Sir Alfred Charles Bernard Lovell
slot gate
social category
spectral line self-absorption
speed-matching
static performance
statistics of population
stepmotherly
Sundance Kid
swamp andromeda
table lookup file
Taguedoufat
the Cup Final
volpones
weapon system software development
wire-line
Wolof