时间:2018-12-28 作者:英语课 分类:轻松英文阅读


英语课

 Something strange is happening in the forests around Chernobyl. More precisely 1, it is what is not happening that is the problem. When leaves fall and trees die there, they are not decomposing 2 properly.


 
Scientists visiting the dead forests noticed that the trees were almost unchanged nearly 30 years after the disaster. They also found an unusually thick carpet of fallen leaves. The scientists knew something strange was happening and they decided 3 to investigate. They uncovered that the rate of decay for the dead trees and leaves was much slower in the contaminated areas.
 
It appears that microbes, fungi 4 and insects, are suffering from contamination. Usually, when a tree dies in the forest these organisms break it down and turn it into soil. They are essential to the forest ecosystem 5. But near Chernobyl the ecosystem has broken down.
 
The problem could have wider implications. The scientists fear that the thick dead brush could be a huge fire risk. A forest fire in the area would be hard to control. What is worse is that it could spread radioactive material well beyond the exclusion 6 zone.

1 precisely
adv.恰好,正好,精确地,细致地
  • It's precisely that sort of slick sales-talk that I mistrust.我不相信的正是那种油腔滑调的推销宣传。
  • The man adjusted very precisely.那个人调得很准。
2 decomposing
腐烂( decompose的现在分词 ); (使)分解; 分解(某物质、光线等)
  • The air was filled with the overpowering stench of decomposing vegetation. 空气中充满了令人难以忍受的腐烂植物的恶臭。
  • Heat was obtained from decomposing manures and hot air flues. 靠肥料分解和烟道为植物提供热量。
3 decided
adj.决定了的,坚决的;明显的,明确的
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
4 fungi
n.真菌,霉菌
  • Students practice to apply the study of genetics to multicellular plants and fungi.学生们练习把基因学应用到多细胞植物和真菌中。
  • The lawn was covered with fungi.草地上到处都是蘑菇。
5 ecosystem
n.生态系统
  • This destroyed the ecosystem of the island.这样破坏了岛上的生态系统。
  • We all have an interest in maintaining the integrity of the ecosystem.维持生态系统的完整是我们共同的利益。
6 exclusion
n.拒绝,排除,排斥,远足,远途旅行
  • Don't revise a few topics to the exclusion of all others.不要修改少数论题以致排除所有其他的。
  • He plays golf to the exclusion of all other sports.他专打高尔夫球,其他运动一概不参加。
学英语单词
absolute value transducer
acetylpheneturide
acquaintance principle
alickadoo
anomia
antifriction cast iron
atomic (energy)level
automatic comet-seeker
awista
beysug r.
blue-silver
bottom third wheel jewel
breadline
bruit de tabourka
bulk handling sugar
business america
Christmas card
Danbo
dial caliper guge
dores de guanhaes
ed-bradley-cbs-co
engagement to marry
Espinillo
extraneous component
fiber reinforced ceramic
file batch count
flooxing
Florschutz's formura
flounder around
Forest-plantation
galvanohypnotism
gaultheria miquellina takeda
get-pennies
giant killers
granulites
grounding of pole
hirtzler
hotel-styles
how the heck
inertia test
instrument lead
intercolumnary
iPlanet Application Server
isospin rotation
journal collar
Lidanar
lie like a log
longyearbyens
loss cone instability
low voltage distribution
low-resistance damping winding
machine shaft
macro call statement
made as though
man-managements
metallurgical plant wastewater
minimal polynomial of matrix
Mājhiwāla
outrigger canoes
oxidation-reduction potential
papp
pazel
physiological strain
pilotage navigation
plainswomen
poisonous fungus
polyxene (platinum)
pound paper
preceding test step
proximal gastric vagotomy
Quaker meeting
quantum theory of matter
quietening cant
rayleigh scattering region
reinforced concrete
restricted access
rheoprotein
schollensis
Scripps, Edward Wyllis
slump fan
strip conductor
T-balls
taking a crap
tanker market
the production process
three-throw tap
took a breath
tracer response curve
training programs
transcalcaneal traction
underutilizing
unipolar nerve cell
uromyces itoanus hiratsukat
Uzbek language
vertical keystone correction
very-narrow-beam receiver
wall between windows
water-hammer arrestor
wave depth
withdrawal bleeding
wood-shake
yellow dragon