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
affrighting
agley
aloe families
artificial precipitation
audit skill
autovalve
bacitracin
ball fringe
Berkeley, C.
boiler forced outage rate
bonded joint
calcium hydrate
Canoinhas, R.
canonical complexity class
carron oils
chain sampling plan
choralcelo
conductometer of heat
constant speed method
culpable neglect
Cydnidae
delphinite
direct labour basis
doubles court
downthrown fault
e-knee
ecological habitate
equipment design variables
exposure range
facultative photoheterotroph
financial situation statement
Flumark
French hornists
gangcar
gollying
graphics production engineering
gun-applied furnace insulation
haitin
hand -held set
Hang Seng Finance Limited
heat of molecular orientation
hoangnan
immersable
italian-styles
janzen-rayleigh iteration
joro
jowters
ketatosis pilaris
knotter (screen)
Lankojärvi
lockout lock out
mad dogs
Magisano
magneto-optical phenomena
major highway artery
map sheet
mash note
matthiessens standard
maximum rigidity
modulable
multiple-choices
neurocirculatory asthenia
norrish type i photoreaction
Näläntö
office-parties
Okavango R.
pernells
phat
prominent success
purine deaminase
Pyrrhula
quality rating plan
reversing face
Roman candle
sea coots
self-validating code
semi integral plow
simple follicular cyst
single - mode fiber
sliding windows
spare motor
statement of budgeted cost of goods manufactured
stealthier
stepmonther
supersonic combustion ramjet (scramjet)
synchondroses sacroiliac
taata
Tel'ch'ye
terbium halide
thraciids
three-fold
torpy
torsion rod stabilizer
traffic guidance
tridentatus
trochlear nuclei
Vidigão
what if?
Whitbread Book of the Year
xylaria intraflava
zirconium hydroxyoxalate