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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(247) / 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(246) / 评论(0) 分类 探索与发现2012年

A young man goes into a drug store to buy condoms. The pharmacist says the condoms come in packs of 3, 9 or 12 and asks the young man wants. Well, he said, I've been seeing this girl for a while and she's really hot. I want condoms because I think to

发表于:2019-01-19 / 阅读(287) / 评论(0) 分类 趣味英语

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(280) / 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(296) / 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(269) / 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(253) / 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(286) / 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(265) / 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(248) / 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(263) / 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(331) / 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(268) / 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(308) / 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(231) / 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(280) / 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(285) / 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(302) / 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(262) / 评论(0) 分类 探索与发现2012年

Its hard to find something not impacted by our current financial crisis. Here are 12 examples of what the recession means for specific things, from Spam to sex addiction. 1. Spam It looks like meat, it tastes like meat, but its a far cheaper substitu

发表于:2019-02-04 / 阅读(525) / 评论(0) 分类 阅读空间
学英语单词
Abderhalden reaction
administrability
ancient turbidite
androsporangium
Angioechographic
argutus
ayyoub
Badam Mazar
be abashed
be the worse for wear
bibliomaniacal
bichons
bottom fish
Caithness County
carboxyl terminal
carrier leak balancer
casein micell(e)
chromaffinoma
clear glaze
CNVs
courap
crowdpleaser
crystal orientation
debt burden
dwo-
Dérésia
egglayer
electric healing
electrical radian
exterior heat syndrome
fairington
flee from the bottle
floor joist
fluorapatite
force-controlled motion commands
Frome
graduated income tax
groove mark
hemiplegic rigdity
hereford cattle
hubbert
Idleb
Inject-all
intestinal nematode
Kitenga
La Union
leader of laws
make ... ill
MARMAP
metamorphic discontinuity
molles
mooring hole
myelocoele
Narimanov
near infra-red
needle punching machine
Ngimbang
organic matter basis
outquotes
oxyproteinic acid
parallel road
PcoR
photoelectric alarm
piggy-back legislation
pre-liquefier
promptnote
quantitative comparison
raise one's head
regenerating column
reverse-engineering
ring finger
round bale
run away
saponated cresol
sappenfield
sarcoma botryoides
set point adjuster
similar polyhedrons
single line to ground fault
slam-bang
smokie
social awareness
solidoid
star shell
strike me dead if
surgical prosthesis
system of mineralogy
tower ager
tracheooesophageal
tranquizine
two-family house
undisturbed water
unstable channel
valve reseating
vice-marshals
water recovery system
watercannons
well casing
wideband carrier system
wise up (to)
your bad
zemirah