时间:2019-01-22 作者:英语课 分类:自然百科2012年


英语课

 And for every dam, there is a new habitat for new life, and a richer, more diverse Yellowstone. 


 
But just as Yellowstone reveals the complexity 1 of life, it also exposes its fragility. On its lofty ridges 2, there are signs that all is not well with the whitebark pine. From above, it looks like autumn colors have come to an evergreen 3 world. 
 
But these trees are dying. Small eruptions 4 of resin 5 dot the trunk of the tree—evidence of an invasion. Tiny beetles 6 are chewing through the tree’s outer defences. Once inside, they lay eggs that turn into larva that eat the tree. Each tree that is lost threatens all the animals that rely on its autumn bounty 7
 
The only thing that can stop the beetles is extreme cold. But recently, the climate here has been getting warmer and warmer. No national park can protect against that.
 

n.复杂(性),复杂的事物
  • Only now did he understand the full complexity of the problem.直到现在他才明白这一问题的全部复杂性。
  • The complexity of the road map puzzled me.错综复杂的公路图把我搞糊涂了。
n.脊( ridge的名词复数 );山脊;脊状突起;大气层的)高压脊
  • The path winds along mountain ridges. 峰回路转。
  • Perhaps that was the deepest truth in Ridges's nature. 在里奇斯的思想上,这大概可以算是天经地义第一条了。
n.常青树;adj.四季常青的
  • Some trees are evergreen;they are called evergreen.有的树是常青的,被叫做常青树。
  • There is a small evergreen shrub on the hillside.山腰上有一小块常绿灌木丛。
n.喷发,爆发( eruption的名词复数 )
  • There have been several volcanic eruptions this year. 今年火山爆发了好几次。 来自《简明英汉词典》
  • Over 200 people have been killed by volcanic eruptions. 火山喷发已导致200多人丧生。 来自辞典例句
n.树脂,松香,树脂制品;vt.涂树脂
  • This allyl type resin is a highly transparent, colourless material.这种烯丙基型的树脂是一种高度透明的、无色材料。
  • This is referred to as a thixotropic property of the resin.这种特性叫做树脂的触变性。
n.甲虫( beetle的名词复数 )
  • Beetles bury pellets of dung and lay their eggs within them. 甲壳虫把粪粒埋起来,然后在里面产卵。 来自《简明英汉词典》
  • This kind of beetles have hard shell. 这类甲虫有坚硬的外壳。 来自《现代汉英综合大词典》
n.慷慨的赠予物,奖金;慷慨,大方;施与
  • He is famous for his bounty to the poor.他因对穷人慷慨相助而出名。
  • We received a bounty from the government.我们收到政府给予的一笔补助金。
学英语单词
Abū Fulah
accessory gear
acetins
actifs
Adrados
advice-boat
alanineketoacidtransaminase
ampere meter
badly-decomposed
baked clay
Bang Pa Han
brazenface
burr and chip relief
cathode noise
ceiling plan
compiled language
complex adjustment
description language
diary fatigue
differential freight rate agreement
distance range
distressingnesses
distributed function terminal
downbeat
dyspneic respiration
eco-resorts
elastomeric seal
explosive power
exponent transform
flexibility of wood
forgetting error
ginnee
hanafizes
Hatshetsup
heteromorphic homologues
high alkalinity
hole gauge
IASLIC
immunomodulatory
implementation procedures
in transition
input-data strobe
internal and external
Irano-
jennison
labrea
land of promise
large-tailed antshrikes
lead-minings
liquation process
luminous surface
marketing researcher
minor telephone office
mislaird
momentary aspect
Mulgathing
multi-stemmed
multiple measurements
nist-traceable
non-viral
Ordram
pelagophile
pentlandites
phallomere
photosensitization disease
pigpens
plank board
postact
potpourris
predominancy
present serviceability rating
prevalence
primary program operator interface task
proportionated
pulpal wall
raik
re-use of forms
responser speed
ring resonator length
river bed profile
rodmen
Satanizing
scavenging compressor
screw plate
seedling selection
selvedge mark
slap-dab
slavatas
small hole
SNOMED
snow white and the seven dwarfs
steam valve bronze
structure initialization
summer
take no prisoners
tapetum cell
tennist
terezin
Transportation Secretary
traveling-salesman
upbreathing
Vitis quinquangularis