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
abdominal regions
accompactment
air-jet spoiler
Aldissian
alternaria atrans
angle of incidence of maximum lift
Arvilla
aspirator cleaner
atranos (ad?rnaz)cayi
auraptin
B-cell receptor
background projection
banner-towing
baseline-plus forecast
bell centre punch
biogalvanic source
Blair-Brown graft
blocked-out ore reserve
boleg oils
bunging up
calculation of transit period
capillary break
Caragana gerardiana
chloroacetyl-DL-phenylalanine
close collision
coke residue
Costia necatrix
Delphinium leptopogon
digit-symbol generator
exsiccations
family arctiidaes
fan-out-free circuit
fantasy
fibers gold
filing case
Fischer iron-refining process
fitting for self-propelled combine
flammentachygraph
formal homology theory
full gravity block
ganning
granitewares
hauling gear
horel
i am strong
ictus solis
immunologic deficiency syndrome
induced gammaray spectrometry log
instrumentalising
invisible to the naked eye
ionization by collision
it is a gone goose with someone
juxta-
Keteleeria hainanensis
longitude of node
longitudinal mode delay line
main valency
mermithaner
molking fault
monostable multivibrator
najam
Nebiim
nonstarch
Nourydorn
oilgear motor
Oostende
penghu cultural center
permenent dentition
phase-angle difference
piachaud
pipeline address enable
pitots
pregorexia
primary current lineation
psychological film
Rangpur District
Rio Verde de Mato Grosso
Rumpfebene
scina tullbergi
selfbalancing
short-limbed
slow-neutron bombardment
Soil-rent
squeezin'
stock collateral loan
suit someone rihgt down to the ground
Sure bind,fast bind.
table-hopped
tagetes erectas
take to evil course s
tarmacadem
towed vibratory roller
ultrafining
unchangingness
unit oneth kilometric indicating drum
untranscribable
vehicle management
votary
well-near
whisle
whoseso
Wurster's test