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
after leech
AGR fuel element
antiwetting
Anulifera
artmaker
babyproofers
beszel
Bird's formula
Borgosesia
bridge calculating circuit
brighten the chain
Bruecke's reagent
bunder
calamagrostis pseudophragmites koeler
catechizing
Cemaes Bay
chaincessation
choledochus cyst
clamp splice
combined bearing
conversionary
dielectric loss characteristic
dry-sand mould
dynamic data bass parameter
electronic conference system
elliotii
Etla
externally maintained field
extinguishment reserve
extractum liquiritiae
false buckthorn
fidgetiest
foliar application
frozen wall
Fuwa
gelatino-bromide paper
gone green
grapeseed
greased lightnin'
greater-than match
Haribo
heulandites
holocrine secretion
Hospitalet
hull aspirator
incomplete hallucination
indenoindene
keep guard over
lead optimization
luxazone
lyond
Lüllau
machine utilization index
mass spectroscopy
Mcgee graph
meguires
micturition reflex
mulier
multischool
northern holly fern
Obutin
open-ended system
phosphorescence of dyes
phosphoribosylpyrophosphate
photoconductivities
pilot flood
pinselin
pollen plate
Posada de Valdeón
prepared pianos
preproperous
printed-wiring armature
pyranoid
quick balance
rank statistics
reliability design analysis
reopen
report processor
ring-silicate
Ruhmkorff coil
sawnce bell
scarcity of budgetary resources
seepage control installation
shingle bank
sneuel
sprayregen
step printing
straight firing
subsextuple
Swedru
syringocoele
teeth-chatterings
Thamugadi
there-
thermogenic soil
Tupamaro
Twitney Spheres
vicarship
virelai
vitrophyre
white matter (or white nerve substance)
zardaris