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 solar year
analysis of shower
annual oscillation
atomic number 97
atrial arrhythmia
Auchencorth Moss
band-saw cutter
be glued to sth
be outside
bellany
Belmez
bioaerosols
bloc-vote
boiler equipment availability factor
brachydactylies
brianda
Chilumba
co-linear
color graphic printer
common initialization macros
connection of polyphase circuits
Consist.
crown half
crush-border
cybernetic systems
daldinia caldariorum
decrease of budget
diall
dickories
diodrast clearance butter
dog disease
dovetail fastening
encierro
eustatic change
fahy
fallopian lieaments
granulation-tube
Guayalejo, R.
hepatic function
hot worked
hypnodontics
imaging circuits and systems
incompensable
Indian subregion
John Cleese
JSCM
khaleque
krantzler
lacrimal lithiasis
launch tube
lornness
marine electronic engineering
metal power flow meter
microborescope
mineral uses classification
mixing function
Moncao
MZT
narver
negative burner
nine-spots
OASDHI
open-circuit
parasitic gap
perform a ceremony
pluck down
price arbitrage
print queue
proplanetary disk
protest for non-acceptance
puussepp's operation
quarter-plate
quarterback sneak
reminiscers
reserpiline
respirator
retarded fundamental solution
Rheinland
roturbo
Schmidt law
sea lion
Sergius III
sit on sb
soulstress
speed of lens
stopped flow method
strappado
streaky pork
striek
supersedeas bond
sway-bracings
thermal stencil
Tibenzatum
torsivus
trapezoidal modulation
truck traffics
uncatalog
undistinction
Van Buren Point
vivificative
wallaroos
warrant conversion