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 nine day's wonder
air conditioning bay
amino baking enamel
antimony oxysulfide
aristata
attendees
backsaver
bothrenchyma
bounded heuristic method
broad-sclerophyll plant
carecas
cariogenic microorganism
casselman
cholesteroluria
coneo-iritis
cover up the deficiency of
dambreuse
dansons
dog-doo
employee recording
exometra
external medium
fatigue measurement
ferrandines
find the opportunity
for decades on end
fore-strength
four hundred
frot
fully charged state
Gent-Brugge, kanaal
gib and key
have a profound grasp of
helium layer
heterogeneous wool fibre
individuability
instrument autotransformer
internal dispersion
keesh
leukovirus
Lopingian
make an inventory of warehouse
marine microbial pollution
melting welding
meticulosus
multiple systems coupling
network of veins
never know
notopodium
open crankcase ventilating system
order cuculiformess
Orion's Belt
ortho-chromatic film
patinated
peat tar
percentage of braiding coverage
placidity
poddock
prefabricated element
pregravid
principle of equal net advantage
proton decay
pseudo vector coupling
pyogenous
queen trusses
radioimmuno-precipitation
real-time control subset
Republic of France Navy
Rocky Point
saved area
sax-horn
screwpod
second-order feedback system
secondary cleat
self-biting
self-organizing sensing
shoes
short-term public loan
sigma function
splenic sinusoid
stroboscopic meter disc
sub-zero oil
submarineline
supervisory authority
symmetric design
systematize
Taoyuan Township
tenthredinid
tracking beam
TUC
tunnel fire-fighting system
twiglikest
two way algorithm
undersell
universalize
warble lump
watermelon juice
Wiebelsdorf
X certificate
yarmalkes
Ziehl's carbol-fuchsin stain