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
'A' game
acid alizarine blue-black
adjacent arm
aggressive cue
Agrionidae
albitocin
aleatory sale
algesl receptor
asdfghjkl
ash greys
associate strain
belief-systems
bellperson
birectangular spherical triangle
borrowing- cost
Box and Jenkins model
caesium transition frequency
called to the bar
cantal
chemical focus
Chukotskoye Nagor'ye
cimi
clopton havers
dark-field illumination
DDU (display and debug unit)
decanic acid
dementi
Dhoomadheere
direct current centring
discontinuous composites
dyap-
Enipefs
epoxyaurapten
farnsworth image-dissector tube
first-level addressing
folded fault
front reflection
global extent
ground-statest
heavy neutral oil
hydrocele muliebris
hyperchimaera
I Desire
Iris cathayensis
junhee
Kelbia, Sebkhat
LAXD
mid-rest
millimu
Mitondo
moment of strength
monds
mus'n't
muscadelles
mutator strain
NASMHPD
natural gas liquid
negative information
normocellular
Oberbieber
odd line interlacing
oil tank pitch
only his way
optoma
orphaning
over-careful
pandemicity
pleura cavity
point-disjoint path
polyface
precision analog
program interrupt transfers
pyrodex
recreation ship
reesty
relieving wall
reorients
ribbed rubber matting
run-around
sandblasting abrasive
school-focuseds
sculpturesqueness
self-skimming
soffit lining
stellite cutting tool
step-by-step integration
stitched down
stopforth
strain test
svenn
swing of balance
swing-era
swots up
the Modern Athens
tn power system
twin problem
two-dimensional positioning system
ubiquitous
unemulative
unnutritious
Valtimo
Windows Media server