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
acute stem-cell leukemia
aid ... in
Anure, L.
Azumaya-san
be wide awake
beam broadening
beerbohm's list
bissariye (al bisariyah)
bladderlike
bloodymindedness
Borcea
broilery
broncho-egophony
burnt-umber
canon of marine transgression
capacity rating
Capillaria
Ceresan universal trockenbeize
Chalcidians
complementary nuclear training
Coshocton County
cross-leaved heaths
curved-handle pneumatic riveting hammer
cytopharynxes
dea ex machina
decamerous
descriptionist
dichloroacetanilide
donnica
double pane sash
drip-tight
educational administration
emitter-base capacitance
flat planting
gene scope
gravity center
gum-plant
hair curling
hakonechloa macra mak.
halloysite
halyard bend
hard nut to crack
heddled
helicopter-landing
homologous series
hydowse
inflammatory congestion
inner mantle
international sunspot number
keep pushing
Khz
korean lawn grasses
laser ground mapper
levitated
mahnertite
medicareplus
meningocephalitis
migraine headache
monoculturals
multiple intelligences
newscycle
objection
oxyhaemglobin
paraglides
pattern of manifestation (hadorn 1945)
pendulum vibration
peritoneal tap
possessiveness
potbellies
Potentilla virgata
pre-tax operating profit
psychoda trilobata
quantative
reactor containment equipment cooling water heat exchanger
reference speech power
reinit.
Ring Nebula
roughing out sieve
running resistance
rusewale
saddle friction-plates
scientific subroutine library
Siddons, Sarah Kemble
side deal
slip someone a length
specials
staphylococcus
synthetic culture media
TABITHA
table mats
tgus
the national electricity code
unmoving
urticarious
vegetable processing
Vinyon CF
vocoids
who should attend
Williamson synthesis of ethers
wooden floor chip
x ray spectroscopic analysis
yellowbook