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
aahed
accept your suggestion
acetylaminopeptidase
acute internal hemorrhage
Advanced Statistical Analysis Program
agkistrodon bilineatus
aminothiazole
apertures coupling coefficients
artistic development
Basolest
bay assembly
blades of grass
blodite
caminetti
cattons
Charcot's foot
circulating
comiferous
Corynebacterium pakinense
cutis(vera)
cytofibril
danchon (tanchon)
deliberate offense
diisononyl phthalate
divining
Donnean
dragon lizard
dust (-storage) hopper
dyadic numbers
East Coast of the United States
electro-metal plant
fibre characterization
Florensac
forward index
Fresnel diffraction pattern
gas pump
guide meridians
Hardy's lotion
hydrocolloid
ink supply
intermediate subcontrol station
isopsephy
Ixeridium laevigatum
karpathite
ketonic link(age)
Kyanophilite
labial phimosis
large crabgrasses
latisepal
life boat davit
livabilities
Merad
microfluidization
mind boggling
nanojunctions
Naringoside
no-swell condition
not-quite-right
oil seal(ring)
Old Northwest
one for one exchange algorithm
onsand
operational storage site
opocephalic fetus
opsis
optical flame fire detector
paragonitum
parameter segment
perfluamme
piggy in the middle
Pisidia
porodic
priebe
pulse coupling
reach an agreement
reemploying
renominee
rigid reinforcement
ring complex
Rock Hall
rotating crank lubricator
Saussurea alaschanica
Sir Frederick William Herschel
sore spot
specialty shop
spider angiomas
stockhorn
syncretises
the paranormal
tops from platformate
trade capital
ultimating
undecent
usable
Vendays-Montalivet
Victim.
Villegaignon
voidablest
with industry
wucheria bancrofti
yoneichi
zenkerize