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
-line
2-picoline
alaninol
alloy bipolar transistor
antipromotional
arclights
asarum europaeums
Augustinianism
back-filling machine
bay windows
boiler-firing equipment
Brownington
burnout position
cefalonium
chia-i
chondro-epiphysial
circlips
collineatory transformation
conexus
contact person social security number
controllable-rate source
Datadian
delta-carbon
diameterly
dicyclopentadienyl-beryllium
dog teeth
Dogo Argentino
double current signaling
dry-
Echinoderma
elastic thread for textile use
elda
end sizing
endotoxin lipopolysaccharide
Erickson test
essential compound
fiber-optic magnetometer
flood peak profile
Fontoy
footplate men
gas stripping
gas supply pipe
generics
gerrits
graphic statement
gross sch?nebeck
Hammett's rule
hot tube ignition
howsomever
immunosorbents
impulse modulation
incertitude zone
isoantigens
jonathan
leatz
malachiids
Malleomyces pseudomallei
Marshall McLuhan
mass flow equation
mixed phase layout
moorby
natural parthenocarpy
non-alcohol
nonconical
oatmeal cookies
office speaker
optical astronomical measurement
outspitting
oxychelidonine
penalosas
phytopathologist
porcelain combustion boat
pronatalist policy
prototyping testing
PVPP
quaid-i-azam
quick releasing relay
Ramesses II
random variance
reginned cotton
roache
rock matrix compressibility
rose-lipped
ruthenium monoiodide
simple measure
SNGPF
soft clay ground
spinalis cervicis
structural econometric model
Symplocos glandulosopunctata
telephone circuits
tendriled
three-timers
throttling up
tonk
traveling pulse
trintle
uncompulsory
variola abortiva
Wang Xizhi
with a grain of salt
zancanella