时间:2018-12-16 作者:英语课 分类:2007年VOA标准英语(六月)


英语课

By Paul Sisco
Washington, D.C.
29 June 2007
 


The American bald eagle, a national symbol since 1782, was once almost wiped out by hunters and pesticide 1 poisoning. Today the great bird is not only surviving but thriving. Four decades after it was declared endangered, the American bald eagle is off the Endangered Species List. VOA's Paul Sisco reports.






The American bald eagle


The American bald eagle



This is a momentous 2 week for America's bald eagles, and the legislation that has protected them. The country's national symbol is officially off the endangered species list.


Two hundred years ago upwards 3 of a half million eagles soared across American skies -- serving as an apt symbol of freedom and expansion for a rapidly growing nation.


But by 1963 only 400 nesting pairs remained in the lower 48 states, due to loss of habitat, hunting and the use of pesticides 4. The chemical DDT made eagle egg shells thin, resulting in nest loss. Congress eventually banned the dangerous pesticide and included the bald eagle on the Endangered Species Act of 1973. Now due to the protections the act provides, eagles are back in numbers sufficient to take them off the endangered species list.


"We're all excited about it. It is a great success story," says Deb Shaeffer of the National Audubon Society.






Ceremony at the Jefferson Memorial


Ceremony at the Jefferson Memorial



It is a development so exciting that federal officials and environmentalists marked the occasion with a ceremony at the memorial in Washington, D.C. dedicated 5 to the nation's third president, Thomas Jefferson.


"The eagle has returned,” said Interior Secretary Dirk Kempthorne. “It is my honor to announce the Department of Interior's decision to remove the American Bald Eagle from the endangered species list."


Recovery programs across the United States, many run by volunteers, have been a big part of this success story.






John Aiken


John Aiken



John Aikin operates a breeding program at the San Francisco Zoo. "I know more about the birds in this state,” says Aikin. “There were about 38 nesting when we started the program. Today, there are more than 200, so they are doing much, much better."


And nationwide, after decades of conservation efforts, there are now some 10,000 nesting pairs -- a 25-fold increase in the last 40 years.


Young and old took part in the ceremony in Washington. So did special guest, Challenger, a rescued bald eagle used to educate the public and cared for by the non-profit American Eagle Foundation.


"It's a big day, it's a long time coming and it's a big celebration,” says Foundation President Al Cecere. “It's taken over 30 years to protect the eagle. A lot of state, federal and private groups have been working coast to coast, all with passion and dedication 6, so it's a great day. Hopefully our national bird will fly strong and free for future generations."



1 pesticide
n.杀虫剂,农药
  • The pesticide was spread over the vegetable plot.菜田里撒上了农药。
  • This pesticide is diluted with water and applied directly to the fields.这种杀虫剂用水稀释后直接施用在田里。
2 momentous
adj.重要的,重大的
  • I am deeply honoured to be invited to this momentous occasion.能应邀出席如此重要的场合,我深感荣幸。
  • The momentous news was that war had begun.重大的新闻是战争已经开始。
3 upwards
adv.向上,在更高处...以上
  • The trend of prices is still upwards.物价的趋向是仍在上涨。
  • The smoke rose straight upwards.烟一直向上升。
4 pesticides
n.杀虫剂( pesticide的名词复数 );除害药物
  • vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
  • There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》
5 dedicated
adj.一心一意的;献身的;热诚的
  • He dedicated his life to the cause of education.他献身于教育事业。
  • His whole energies are dedicated to improve the design.他的全部精力都放在改进这项设计上了。
6 dedication
n.奉献,献身,致力,题献,献辞
  • We admire her courage,compassion and dedication.我们钦佩她的勇气、爱心和奉献精神。
  • Her dedication to her work was admirable.她对工作的奉献精神可钦可佩。
学英语单词
4-amino-3-hydroxy-1-naphthalenesulfonic acid
acoustical lens
air borne infection
Amb.
analog digital recording equipment
blow engine
Brazilian butt
by bits
carrier-frequency range
cliffies
corrosive action
cryptogenic form
cut thread
dairy-maids
Danilova
defamate
determination of residual amount
Direct Exchange Rate
earlets
ein' feste burg ist unser gott
elector-oculography
enzyme analysis
equilibrium ratio
extender index
field-spool insulation
flat papular syphilid
gallifreyan
genus Myosotis
genus of a closed surface
have a foot in the dish
hoarding stone
hojah
homostatic period
hovertrains
hydrogen-oxygen fuel system
ieper (ypres)
immersion freezing
Indian rhinoceros
information control center
keep your head
lnf
Mascarene Basin
microlighting
muffle kiln
murabahah
musculi vastus lateralis
mutile
myocardial efficiency
national academy of science
noah and the floods
nonleave tree
nonradioactivity
null reference
nut cutlet
nutational ellipse
outscorn
oxidizability
Pattensen
pentapyrrolidinium
Perkiomen Creek
pit tub
polyestradiol
precision flatnosed pliers
pudding-bowl
Pycreus unioloides
quaisy
railroad terminals
raised moss
reference image
right for
rivet shaft
San Vito Romano
saucer passes
scsosnsvsesnsisesnscses-s
sea colo(u)r index
semi-diurnal variations
set criteria
sigmoscopy
sleep spindles
special chemical equipment
speed distance transmitter
spiritual world
sql server management
steers
supported shaker
take vent
take-over current
test text
tigersharks
Toilax
took the fifth
triple point depression curve
ugc
undercot
underpenetrate
unipolar video
Ursus horribilis
vacuum-metallized
Voula
whole heart failure
Zolotarëvka