PLANET EARTH 01
1
ATTENB0R0UGH:A hundred years ago,there were one-and-a-half billion people on Earth.2Now,over six billion
crowd our 3But
even so,there are still
places by humanity.
4
This ries will take
you
to
the
last wilderness and show you the planet and its wildlife as you have never en them before.
5
Imagine our world without sun.Male are facing the nearest that exists on planet Earth,winter in Antarctica.6It’s continuously dark and temperatures drop to minus 70degrees centigrade.7
(HEAVY WIND BL0WING)The penguins stay when all other creatures have fled becau each guards a treasure,a single egg resting on the top of its feet and kept warm beneath the downy bulge of its stomach.
8
There is no food and no water for them and they will not e the sun again for four months.9Surely,no greater ordeal is faced by any animal.
10As the sun departs from the Antarctic,it in the far north.11
It’s March,and light returns to the high Arctic,sweeping away four months of darkness.
12A polar bear stirs.She has been in her den the whole winter.13Her emergence marks the beginning of spring.
14
After months of confinement underground,she perhaps to clean her fur,perhaps 15Her cubs at their bright new world for the very first time.
安全活动教案16
The female calls them,but this steep slope is not the easiest place to take your first steps.
17(WHIMPERING)But they are hungry and eager to reach their mother,who’s on this special day.
一句话心情语录帝
绒毛的鼓出
痛苦的经验
搅拌
受限
急剧下降；乘橇滑下
18Now she lures them
the
only food
the cubs have known since they were
born,deaf
and blind,beneath the
snow some two months ago.
19Their mother has not eaten for five months and has lost half her body weight.20Now she converts the last of her into milk for her cubs.21The spring sun brings warmth,but also a problem for the mother.
22
It starts to melt the a ice.That is where she hunts for the als she needs to feed her cubs and she
must get there before the ice breaks up.
23For now,though,it’s still minus 30degrees,and the cubs must have the shelter of the den.
艾叶水能喝吗24It’s six days since the bears emerged and spring is advancing rapidly.
25But even now,without warning.
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Being so small,the cubs and they would be more comfortable resting in the den,but their mother must keep them out and active.
27She’s becoming weak from hunger and there’s no food on the nurry slopes.28The a ice still holds firm,but it won’t last much longer.29Day 10,and the mother has led her cubs a mile from the den.
30
It’s time to put them to the test.They’ve but they don’t have their mother’s 31At last it ems that they’re ready for their journey and only just in time for,a few miles from the coast,the ice is already splitting.
32Now the mother can start hunting for the als they must have,but she’s leading her cubs into a dangerous new world.
33Nearly half of all cubs die in their first year out on the ice.
34Summer brings 24hours of sunlight and a thawing,shifting landscape.35Further south,the winter snows have almost cleared from the 36Northern Canada’s wild frontier.Here,nature stages one of her greatest dramas.37Every year,three million caribou migrate across the arctic tundra.38
The can only be properly appreciated from the air.
，诱惑
熔化；融化
北美驯鹿
上演
39Some herds travel over two thousand miles a year in arch of fresh pastures.
40This is the longest
made by any animal.
41
They’re constantly on the move.Newborn calves have to be up and running the day they’re born.
42But the vast herds do not travel alone.Wolves.
43Packs of them,eight
to ten
strong,
44
And they’re hungry.It’s the newly-born calves that they are after.45Running directly at the herd is a ploy to generate panic.
46The herd breaks up and now it’s easier to 47In the chaos,a calf is parated from its mother.
48The calf is young,but it can outrun the wolf if only it manages to keep its footing.
49
At this stage the odds are even.Either the caribou will make a mistake or,after a mile,the wolf will give up.
50Midsummer on the tundra and the sun does not t.
51
At the latitudes,the sun’s rays are glancing and not enough of their energy reaches the ground to enable trees to grow.
52You need to travel five hundred miles south from here before that is possible.
53
The stunted shrubs mark the tree line,the beginning of the Boreal forest,the taiga.
54The needle-shaped leaves of the conifers are virtually inedible,so this forest supports very little animal life.
55It’s a silent place where the snow is unmarked by footprints.
56In the arctic winter,snow forms a continuous blanket across the land.
57But as spring from the south,the taiga is unveiled.
58
This vast forest circling the globe contains a third of all the trees on Earth and produces so much oxygen,it changes the composition of the atmosphere.
59As we travel south,so the sun’s influence grows stronger and at 50degrees of latitude,a begins.
山东财经大学分数线毕业以后尾随
计策，手段，花招
站稳脚跟
???
矮小的
灌木北的，北方的，北方地区的恰似也似造句
美好心灵
松柏类
无记号的；未被注意的???
针叶树林地带
60
(BIRDS CHIRPING)Summers here are long enough for broad-leaved trees to re-place conifers.61
Broad leaves are much easier to eat and digest so now animals can collect their share of the energy that has come from the sun.
62It’s summer and the forests are
63
But
the good times will not last.must for they’re damaged by frost.
64As they disappear,so the land becomes barren with little for animals to eat.65The inhabitants must migrate,hibernate or face months of near-starvation.
66The Amur leopard,the rarest cat in the world.
67
Here,in the of eastern Russia,the winter makes hunting very difficult.
68Prey animals are scarce and there’s no concealing vegetation.69The cub is a year old and still dependent on its mother.
70
Deer are frequent casualties of the and the leopards are not above
71African leopards could never survive here but the Russian cats have thick fur to 72There are only 40Amur leopards left in the wild,and that number is falling.73
Like so many creatures,the cats have been pushed to the very edge of extinction by hunting and the destruction of their habitat.
74The Amur leopard symbolis the fragility of our natural heritage.
75
The future of an entire species hangs on the survival of a tiny number of mothers like this one.
76All animals,rare or common,ultimately depend for their energy on the sun.77In japan,the arrival of the cherry blossom announces the beginning of spring.78The sun’s energy brings colour to the landscape.
79
The Earth,as it makes its annual journey round the sun,spins on a tilted axis and it’s this tilt that creates the asons.
松柏类，针叶树
蜕皮, 树叶脱落
结冰霜
冬眠, 蛰伏
在饥饿
最稀罕的，最珍贵的
隐藏；隐瞒
vi. 开花；兴旺；发展成
n. 花；开花期；兴旺期；花开的状态
倾斜的
80The advance of the asons brings constant change.
81
As the sun’s influence diminishes in the north,so the
of
America begin to
shut down,
losing their leaves
in preparation for the dark,cold months ahead.
缴纳基数
820ne ason hands over to another.Some organisms but most must make special preparations for winter and a life with little sun.
83Whole populations of animals are now forced to travel great distances in pursuit of food and warmth.
84Three hundred thousand Baikal Teal gather to escape from the Siberian winter by migrating south to Korea.
85The world’s entire population in a single flock.86But there are parts of the world that have no asons.
87
In the tropics,the sun’s rays strike the Earth head-on and their strength is more or less constant all year round.
88That is why the jungle grows so vigorously and supports so much life.
89
This forest covers only 3%of the planet’s surface but it contains more than 50%of all its plants and animals.
90The canopy is particularly rich.There are monkeys,birds and millions of species of incts.
91Exactly how many,we have no idea.The character of the forest changes as you descend,becoming ever darker and damper,plants.
92Less than 2%of the sunlight reaches the floor.
93But even here,94
In the great island of New Guinea,there are 42different species of birds of paradi,each more bizarre than the last.
95This forest is so rich that nourishing food can be gathered very quickly.
96
That leaves the male Six-plumed bird of paradi with time to concentrate on other matters,like tidying up his display area.
97Everything must be All is ready.
变小；减少，缩小
贝加尔湖
水鸭
迎面的
潮湿的
变化, 多样化
奇异的
