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
'verse
abruptio
accessible by postal communication
acclivitous column
accounting system
aerochronometer
aesthetic pubes surgery
aircraft interception radar
airless tire
aleksandrova
Anemone prattii
auxiliary storage management
bangah
bettily
Board of Broadcast Governors
boost turbopump
brokest
bune cap
burton-wood
Carex peiktusani
central securities depository
chookhouse
Churg-Strauss syndrome
Common Life, Brethren of the
compressed air hammer drill
continuous autofocus
datum vertex
dial guard ring
discharge passage
divergence equation
doning
e-jones
ferroelectric chip
financial forecasting
finely-ground colloidal suspension
formyltyrosine
fraction in lowest term
gas-meters
have someone's nose to the grindstone
heat-resistor
heathlikest
hematherm
hezb-i-islami
hinge of tongue
hopper slope
International Radio Advisory Committee
intolerance of cold due to yang insufficiency
Java Trench
kaira
kanzashi
Kepahiang
kyanite
lumped-parameters method
lunar mansion
magnetic fluctuation
magnetic starting switch
match-fit
mesh node
microdriver
mircken
month corrector operating lever
multimolecular layer adsorption
multistage thin-film scan generator
myrrhlike
natural line of resistance
optical fibre light guide
paleocons
pericyclic fiber
periodic roof pressure
plague bacillus
Plasbumin
plenary action
pressurizing tank
put your finger on
related work
reverend dodgsons
rolling type of beam
semiglaze
sequential structure
sharbet centre candy
silicon carbide refractory
slow-break switch
spacing reed
spiracular trachea
stith
stuttering urination
sulfatolamide
SWALK
syndactyly
tabacco-alkaloid
tapias
Trifluoromonobromomethane
troff
unipolar dynamo
unquit
unsolvible
vertical farm
vibration measurement of driver seat
waveform relaxation method
weapon-aiming reference line
wind-force diagram
yagcibedirs