齐墩果酸苷

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(190) / 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(201) / 评论(0) 分类 探索与发现2012年

The multi-talented Kitano Takeshi, a.k.a. Beat Takeshi, is a Japanese comedian, actor, TV presenter, author, poet, painter, video game designer, award-winning film director and academic. He is one of the few Japanese entertainers to be famous around

发表于:2019-01-01 / 阅读(281) / 评论(0) 分类 各国名人英文介绍

Hey sister, go sister, Soul sister, flow sister Hey sister, go sister, Soul sister, go sister He met Marmalade down In old Moulin Rouge Strutting her stuff On the street She said, Hello, hey Joe You wanna give it a go, Oh Gitchi gitchi ya ya da da (H

发表于:2019-01-10 / 阅读(282) / 评论(0) 分类 The Voice 美国好声音

Israel's new right-wing government is considering a territorial concession to Lebanon. An elderly Israeli Arab in his home in the village of Ghajar on the border with Lebanon, 03 May 2009 Prime Minister Benjamin Netanyahu supports pulling out of a d

发表于:2019-01-13 / 阅读(286) / 评论(0) 分类 VOA标准英语2009年(五月)

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(222) / 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(232) / 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(215) / 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(207) / 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(227) / 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(213) / 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(185) / 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(222) / 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(292) / 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(221) / 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(244) / 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(221) / 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(221) / 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(234) / 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(210) / 评论(0) 分类 探索与发现2012年
学英语单词
-powered
accountant's professional liability insurance
air and oil spring
alternating nature
anomalous rectification
archosome
artilleryship
ASON
attitude knowledge skill pattern
Beausaint
Bilanga
Bullay
Bīrbīrsa Wenz
caulicles
census of manufacturing industries
collision due to vis major
corpora quadrigemina
cryptobioses
cystatrophy
d'allesandro
data resource
dehong dais
deliver horse-power
Diablo, I.
diplopagus
do unto
drill point angle
estromimetic
extra long play
family Euphorbiaceae
filibranchiate type
First Fleeter
fixed asset
fog shower
fractional reserve system
gelousy
glenea versuta
graft-copolymerization
half-pulse repetition-rate delay
heteromorphic
hexachloroanthracene
hexacyclic ring
homony
hustermann
hypocythaemia
incisura jugularis
inheritance of economic status
inner control limits
integral low-finned tube
isoamyl mercaptan
Kirkmansville
lostling
low valence metal ion
maars
Macrophomina
Macroplasty
magnetoplasma dynamics (MPD)
medium-carbon ferromanganese
membrane separation
money trees
MTBO
neurastheniac
neutron activity
nols
nonearning
normal probability plot
one hundred percent
otter hound
pantisocratic
part failure rate
perchlormethane
position changing device
prohibited immigrant
protocollary
public-housing
reserve grade
rookeried
salinity metre
sea-breams
Shikhany
short - term loans
side skirt rail
Sigayan, Mt.
silicone elastomer
skill-based routing
smallprints
Spanish R.
surface-active cation
Svängsta
tebipenem
terrifiers
territory lighting
the cold months of the year
thermal transmission coefficient
track suspension
Tuning.
under-estimate
underwater communications system
Washington Land
yellowfin tuna
zero affix
zoomorphosed