时间:2018-12-07 作者:英语课 分类:VOA2003(上)-社会广角


英语课

 



Broadcast: January 10, 2003
By George Grow


This is the VOA Special English ENVIRONMENT REPORT.
American scientists say rising temperatures on Earth's surface are forcing animals and plants to move to cooler areas and make other changes. Their studies found that warmer weather is causing many kinds of wildlife to leave their native environments. They also found that such natural events as tree flowering and long-distance travel by birds are now happening earlier in the year. Nature magazine reported the findings 1.
The scientists say the result of these changes could be environmental damage and local losses of wildlife. They also warn that some creatures could disappear completely.
Plants and animals have always had to react to changing environments. However, the climate is now changing faster than ever before. Many scientists blame heat-trapping industrial gases for the warmer weather.
Camille Parmesan is a biologist at the University of Texas at Austin. She organized one of the studies with economist 2 Gary Yohe of Wesleyan University in Middletown, Connecticut . They examined other studies that followed the movements of about one-thousand-seven-hundred kinds of wildlife over many years. They used mathematical 3 programs to make sure that only the best information was studied.
Their most detailed 4 effort involved ninety-nine kinds of birds, insects and plants in North America and Europe. They found that the territory where these plants and animals live has moved north by an average of six kilometers every ten years. In Europe, some butterflies now live as much as one-hundred kilometers to the north because of changes linked to higher temperatures.
Professors Parmesan and Yohe used similar methods to examine one-hundred-seventy-two kinds of wildlife. They examined the timing 5 of events in the spring, such as the appearance of flowers and the reproduction of animals. They found that these events happened an average of two days earlier than normal every ten years.
In the second study, scientists at Stanford University in Palo Alto, California examined wildlife and climate information from one-hundred-forty-three studies. They found that about eighty percent of the creatures studied had made changes because of warmer weather.


1. climate [5klaImIt] n. 气候, 风土, 思潮



1 findings
n.发现物( finding的名词复数 );调查(或研究)的结果;(陪审团的)裁决
  • It behoves us to study these findings carefully. 我们理应认真研究这些发现。
  • Their findings have been widely disseminated . 他们的研究成果已经广为传播。
2 economist
n.经济学家,经济专家,节俭的人
  • He cast a professional economist's eyes on the problem.他以经济学行家的眼光审视这个问题。
  • He's an economist who thinks he knows all the answers.他是个经济学家,自以为什么都懂。
3 mathematical
adj.数学的,数学上的
  • The solution can be expressed by a mathematical equation.答案可用一个数学方程式来表示。
  • Einstein was a mathematical genius.爱因斯坦是数学天才。
4 detailed
adj.详细的,详尽的,极注意细节的,完全的
  • He had made a detailed study of the terrain.他对地形作了缜密的研究。
  • A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
5 timing
n.时间安排,时间选择
  • The timing of the meeting is not convenient.会议的时间安排不合适。
  • The timing of our statement is very opportune.我们发表声明选择的时机很恰当。
学英语单词
acquiring corporation
active asset
acute left cardiac insufficiency
angelwing
apinothalamic
ax-tree
bank debts
be maltreated
bimmel
biochemistry of steroids
biotic succession
black stain
bouvetoya (bouvet i.)
cameratube
champlains
coarse sighting
combined transport operate
compound sugar
concurringly
dead loss
Dicortol
direct read during write
ecbo
ectopterygoid
electric diaphragm switch technique
exposure threshold limit value
extrathermodynamic
feadship
fellmongering
first-come
fraternality
Gangri
glide trajectory
Goworowo
gracq
group some
gun molls
helwingia chinensis batal.
hrazdira
hypo-alkalinity
jerad
jet drive
justifiable nitrogen
kennah
Langmuir surface balance
large diameter drilling machine
leatherings
Lincs.
low-grade metal
masosternale
median kinetochore
meninges (pl. of meninx)
mischaracterizations
mixed tocopherol concentrate
mock gravitational force
neck spring
neighbo(u)r restoration
new element
nonpensionable supplements
off-the-pegs
pale lager beer
Palux
perfect combination
phosphoric hand
photomicroscopically
pivotal center
porous graphite containing bronze bearing
presignifying
producer
programmed desk calculator
puk
quasi-personal
random access stationary satellite
realizational
rear-mounted installation
regular end-of-year inventory
Rhododendron sidereum
run-in synchronism
S-configuration
save segment
scfd
self-construals
smaller muscle of helix
spot kicks
ST_business_office-practices
streptomyces venezulae
swarm of
taiwanoserica gracilipes
Tecoanapa
Tel-E-Dose
tenderheartedly
thripps
transient distribution
transillumination of scrotum
tree-walk
trilateral
tumtum
urbanyl
valvuloplasty
Vee-grooved
Vestiaria
window title