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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(95) / 评论(0) 分类 探索与发现2012年

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(93) / 评论(0) 分类 探索与发现2012年

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(113) / 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(107) / 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(97) / 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(101) / 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(114) / 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(94) / 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(86) / 评论(0) 分类 探索与发现2012年

The female retires to consider her verdict. Its hard not to feel deflated when even your best isnt good enough. The sun influences the lives in the ocean just as it does on land. Its richest parts are those where waves and currents bring fertilizing

发表于:2019-01-23 / 阅读(124) / 评论(0) 分类 探索与发现2012年

The strike of a great white shark lasts a mere second. Slowing it down forty times reveals the technique and immense strength of this massive predator. If surprise fails, there will be a chase. The shark is faster on a straight course, but it cant tu

发表于:2019-01-23 / 阅读(206) / 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(93) / 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(121) / 评论(0) 分类 探索与发现2012年

This is in Africa rarely seen, a lush water world. Some creatures are completely at home here. These are lechwe, antelope with hooves that splay widely enabling them to move at speed through the water. For others, the change is far less welcome. Babo

发表于:2019-01-23 / 阅读(68) / 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(86) / 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(103) / 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(103) / 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(86) / 评论(0) 分类 探索与发现2012年

There was a little boy in Kindergarten. He cried, so the teacher asked him what was wrong. He sobbed, I can't find my boots.The teacher looked around the classroom and saw a pair of boots, Are these yours?No, they're not mine, the boy shook his head.

发表于:2019-01-30 / 阅读(117) / 评论(0) 分类 趣味英语

You keep saying youve got something for me something you call love, but confess Youve been messin where you shouldnt have been a messin and now someone else is gettin all your best These boots are made for walkin and thats just what theyll do one of

发表于:2019-02-11 / 阅读(102) / 评论(0) 分类 The Voice 美国好声音
学英语单词
-orPhan
a ghetto
antitheater
arcaro
asynchronous ventricular pacemaker
auties
automatic spindle-speed regulator
auxiliary complex
bloodens
bolma guttata millegranosa
bought journal
charcoal saturation time
chopping up
chromium tape
Chungwe
co-operative savings
corrugated wall
couveuse
deterioration of oil
diaphragm screen
direct labor hour
dormant floor scales
E-beam-pumped free-electron laser
Ellingstedt
equivalent binary weight
eragrostis pilosa
fatty acid activating enzyme
fellow travelers
fire walkers
forty-leven
foulnesses
fundamental species
funtudienine
fusuline
game farming
garyable
give someone rope enough to hang himself
glottic
guest host effect
hacklers
hate ... like poison
havergal
heterocytonic (catcheside 1958)
HIOMT
hopper outlet
Horner's method
Ibrexin-Na
index of biotic integrity
infected field
Kaskelen
keyboardlike
kilomega
lubricities
lygaeids
magnetic field model
malossol caviar
maxilloturbinal
maximum safe capacity
multicarboxylase
multiple normal linear regression model
n-hexylic acid
neens
neopalynology
Never write what you dare not sign.
nonmerchantable
outgrew
Ovalipollis
pamorusa oil
plug flow model
plunger tpe
poke fn at
portable planer
profit center
propose to do
pulmonary osteoarthropathy
push one's fortune s
pyelonephritis calculosa
refutandum
regave
remote job entry network
RPPM
rule of thumb
ruthenium sesquichloride
seriatly
sexual pathology
Shiringushi
single-beat main stop valve
snackmaker
social action theory
Sovetabad
spectacle plate
SS (solid state)
systematic parasitology
tandem condensor
tea candle
tea cooper
tension impulse
uviolize
value-adds
visible export
watermelon begonias
young charges