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A hundred years ago, there are one and a half billion people on earth. Now, over six billion crowd our fragile planet. But even so, there are still places barely touched by humanity. This series will take you to the last wildernesses and show you the

发表于:2018-12-03 / 阅读(123) / 评论(0) 分类 探索与发现2012年

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发表于:2018-12-06 / 阅读(131) / 评论(0) 分类 牙齿和爪子.Tooth.And.Claw

The penguins stay when all other creatures have fled because each guards a treasurea single egg rested on the top of its feet and kept warm beneath the downy bulge of its stomach. There is no food and no water for them. And they will not see the sun

发表于:2018-12-27 / 阅读(125) / 评论(0) 分类 探索与发现2012年

KELLY MCEVERS, HOST: Donald Trump Jr. says he agreed to that meeting last June at the request of an acquaintance from the Miss Universe pageant. The Washington Post says that person was Rob Goldstone. He's a British-born music promoter. Goldstone say

发表于:2019-01-16 / 阅读(162) / 评论(0) 分类 2017年NPR美国国家公共电台7月

They are constantly on the move. New-born calves have to be up and running the day they are born. But the vast herds do not travel alone. Wolves. Packs of them, eight to ten strong, shadow the migration. And they are hungry. Its the newly born calves

发表于:2019-01-23 / 阅读(145) / 评论(0) 分类 探索与发现2012年

But they are hungry and eager to reach their mother whos delayed feeding them on this special day. Now she lures them with the promise of milk, the only food the cubs have known since they were born, deaf and blind beneath the snow some two months ag

发表于:2019-01-23 / 阅读(143) / 评论(0) 分类 探索与发现2012年

Day 10. And the mother has let her cubs a mile from the den. Its time to put them to the test. Theyve grown enormously in confidence, but they dont have their mothers sense of urgency. At last it seems that they are ready for their journey. And they

发表于:2019-01-23 / 阅读(130) / 评论(0) 分类 探索与发现2012年

Midsummer on the tundra and the sun does not set. At these altitudes, the suns rays are glancing and not enough of their energy reaches the ground to enable trees to grow. Youll need to travel five hundred miles south from here before that is possibl

发表于:2019-01-23 / 阅读(128) / 评论(0) 分类 探索与发现2012年

As we travel south, so the suns influence grows stronger. And at 50 degrees of latitude, a radical transformation begins. Summers here are long enough for broadleaf trees to replace conifers. Broadleaves are easier to eat and digest, so now animals c

发表于:2019-01-23 / 阅读(143) / 评论(0) 分类 探索与发现2012年

The advance of the seasons brings constant change. As the suns influence diminishes in the north, so the deciduous forests of America begin to shut down, losing their leaves in preparation for the dark, cold months ahead. One season hands over to ano

发表于:2019-01-23 / 阅读(128) / 评论(0) 分类 探索与发现2012年

The character of the forest changes as we descend, becoming ever darker and damper, favoring different kinds of animals and plants. Less than two percent of the sunlight reaches the floor. But even here there is extraordinary variety. In the Great Is

发表于:2019-01-23 / 阅读(117) / 评论(0) 分类 探索与发现2012年

The sun beating down on tropical waters powers the weather systems of the globe. Moisture evaporates from the warming ocean and rises to create great storms. The winds generated out at sea sweep inland across the continents. As they travel across the

发表于:2019-01-23 / 阅读(130) / 评论(0) 分类 探索与发现2012年

Deer are frequent casulties of the harsh winter. And these leopards are not above scavenging from a corpse. African leopards could never survive here. But the Russian cats have thick fur to shied them from the cold. There are only 40 Amur leopards le

发表于:2019-01-23 / 阅读(153) / 评论(0) 分类 探索与发现2012年

Their secret is teamwork. Impala are their favourite prey. They start to hunt and the pack splits up. An aerial viewpoint gives a new insight into their strategy. As the dogs approach their prey, they peel off to take up separate positions around the

发表于:2019-01-23 / 阅读(125) / 评论(0) 分类 探索与发现2012年

The dogs know their prey must come out or drown. Now its a waiting game. The rest of the pack are calling. Theyve made a kill in the forest and this is an invitation to join in the meal. The impala is in luck. A pack this size kills once a day and ev

发表于:2019-01-23 / 阅读(136) / 评论(0) 分类 探索与发现2012年

All across southern Africa, all animals are journeying for the same reason. Buffalo join the great track. Nowhere else on Earth are so many animals on the move for the same urgent purpose. They are all heading for the swamps of the Okavango, a vast i

发表于:2019-01-23 / 阅读(140) / 评论(0) 分类 探索与发现2012年

At the peak of the dry season in the Kalahari, water arrives in the Okavango. It fell as rain a thousand miles away in the highlands of Angola and has taken nearly five months to reach here. The water drives out insects from the parched ground which

发表于:2019-01-23 / 阅读(119) / 评论(0) 分类 探索与发现2012年

The comment follows a disappointing monthly unemployment report that showed continuing job losses in the United States. Michael Bowman | Washington 10 January 2010 Photo: AP Nick Rodriguez looks at job listings for tow truck drivers in the New York S

发表于:2019-02-03 / 阅读(194) / 评论(0) 分类 VOA标准英语2010年(一月)

EU Commissioner Oliver Rehn is in Athens to discuss Greek proposals to straighten out its government finances. The European Union has urged Greece to implement greater austerity measures immediately to tackle a debt crisis that has shaken the entire

发表于:2019-02-08 / 阅读(143) / 评论(0) 分类 VOA标准英语2010年(三月)

Conradin was ten years old, and the doctor had pronounced his professional opinion that the boy would not live another five years. The doctor was silky and effete, and counted for little, but his opinion was endorsed by Mrs. de Ropp, who counted for

发表于:2019-02-16 / 阅读(240) / 评论(0) 分类 英文短篇小说
学英语单词
accolling
angiombrine
antennal sclerite
automatic photometric titrator
autopoliss
Bacchus fruit
basal-cell epithelioma
bear i. (bjornoya)
block capital
carolis
central-fire
chemical explosive of excavation
Chernoistochinsk
Chimaphila japonica
collective mark
combers
continuous budding
creak detector
degree amplification degree
deprint
diningroom suites
distillating
dividend received account
dolmuses
dwine
dystopically
electroconvulsive therapy apparatus
euthymol
evzone
face bond
fall table
Fargesia melanostachys
fast motion
fat-fingered
foreshafts
get a rap over the knuckles
giga-seconds
good things
greaved
ground snakes
hand cleaning centrifuge
heraldest
Hirsch funnel
ice-cream sundae
indic hydroxide
karaoke boxes
kolaneci
kullman
leibel
Ligamentum coronarium
liquid sealing compound
Luce County
material list
Merasheen I.
microinequity
micropublisher
mismatch in core
Montecastello di Vibio
motor end plates
neuromuscularly
nitrogen transfers
nongames
one safe port
outsiders
paedophile ring
parostosis
phnom penhs
Pitt R.
pneumatic work
Port Jackson
problematicum
process control engineering
project revisit
prototropically
pseudomicrocephalu
rate-of-rise suppressor
reaction-type stage
reinforcement of multi-openings
relative permeabilities
return item
sardie
satellite fixing by range measurement
shot borehole
specific consumption
stache
stasigenesis(huxley 1957)
system tray
tag-phrase
take a share in
TIG torch
time-codings
titivate
traditive
troptometer
tunze
twittings
up-escalators
us consumer price index
valve spring seat
wall-mounteds
wanderin
window-dresser