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
adiabatic saturation
air elutriation apparatus
alpha fetoproteins
Amy-John
Bauer, Otto
belcastro
bizkaia
bogus stock company
Botrychium
brevidactylus
bromatography
bucking current ratio
cataloging department
Catandica
Chern class
concessive clauses
connection survey
conquistadors
copper cylinder
crazy paving path
decompartmentalised
deflationary effect
Desargues's theorem
detention request
diagrammatic representation of input output
drawing sheet size
drift cancellation
electrical resistance property
equal-ripple filter
Farber disease
farm plan
fish-farming with sewage
Fort Henry
GRIP170
gyroscope error detector
Hancock County
heavy-duty packaging
hypercalcification
interference figure complain
joint loan
Joint Maritime Commission
Kabansk
large capacity meter
large wood
larva (pl. larvae)
lateral striate artery
lenka
liden
lift a hand
line of business reporting
lithizone
lossless compression
López, L.
Magsal
make an example of someone
marther
microtiter plate
Minimize window
mohair sicilian
Mordvin
moulding box closer
multi-cable ropeway
multiflue smoke stack
multiple arc circuit
musculi epitrochleoanconaeus
neocytosis
nitroaromatic acid
only child
optic telecommunication cable
paraglenea fortunei
Pecht
pimpel
plodges
Poephagus gruniens
pola
postinsuia
practical horticulture
R. S. A.
respiratory coefficience
Ritini
rotatingcylindrical drum
Rukira
Rutd.
sakara
sea-blubber
sec-butylbenzene
sidi-bel-abbes
silver satin
singelgrachts
sinseh
sound-absorbing porous material
Tacitus
taperings
Telescope Peak
took an oath
uneven sided oblique rib weave
unsayablest
ununiform loops
velocity of energy
William of Occam
Wilmott
zero correlation criterion