2010年自考《创新思维理论与方法》复习资料汇总

010年自考《创新思维理论与方法》复习资料汇总

BBC Yellowstone script 3

NARRATOR: Yellowstone,

volcanic wonderland.

Two million acres of wild space

right in the heart of North America.

The heat of the summer has unveiled

the full extent of the Yellowstone wilderness

and, for a few precious months, it has blossomed.

But, now, Yellowstone is changing.

In just a few weeks, the snow and ice of winter will be back.

(BUGLING)

As the animals of Yellowstone now turn to face

perhaps the biggest challenges of their year,

the true value of the world's first national park

is about to become clearer than ever.

It's late August and on Yellowstone's peaks

there is already a dusting of fresh snow.

Now, a new sound marks the new season.

(BUGLING)

Fuelled by testosterone,

the bugle call of this male elk is a boast of his strength.

(SHRILL BUGLING)

010年自考《创新思维理论与方法》复习资料汇总

All over Yellowstone,

male elk are challenging each other for dominance.

(BUGLING)

The sound of Yellowstone's autumn.

(SHRILL BUGLING)

They are trying to win the admiration of females

and gather them into a harem.

Only then do they stand a chance at mating with them before winter.

But the females are not yet in season,

so they are not really that interested.

And, for now, they have a more practical concern.

Winter will soon be here.

They are eager to head down to lower ground

before the snow comes in earnest.

Some will move down into nearby valleys,

whilst others will journey much further,

even beyond the boundaries of Yellowstone itself.

Yellowstone is deep in the Rocky Mountains of North America,

an isolated high plateau defended by rugged peaks.

In the middle is the National Park.

The park and the surrounding mountains form one of the most important

and spectacular wilderness areas on Earth.

010年自考《创新思维理论与方法》复习资料汇总

In just two months, this great plateau will become a deep freeze once more.

Before then, the animals of Yellowstone will have to get ready

or get out.

But, for now, below the snow-dusted peaks,

summer still lingers in the heart of Yellowstone.

(GRUNTING)

The sun has revitalised this place

and, now, there are more living things here

than at any time of the year.

The summer has brought visitors too,

who are enjoying Yellowstone at its most vibrant.

As the sun now starts to get lower in the sky,

the rich colours make this

one of the best times to see the geysers.

On the grasslands, the good times are already over.

These bison are making the most of the grazing,

but it is now dry and parched.

From now on, they will have to rely heavily on stored fat

to keep them going,

as these meadows become covered in more than four feet of snow.

Others are already thinking of leaving.

Pronghorn evolved to outrun a now-extinct North American cheetah

010年自考《创新思维理论与方法》复习资料汇总

and, so, are the fastest antelope on Earth.

But, unlike bison, their lightweight bodies can't store

enough energy to keep them here through the winter.

So, now they must head out.

Their journey will be the longest of all.

But as many are preparing to get out, some have no choice but to stay.

In the remote north east of the Yellowstone wilderness

are the Beartooth Mountains.

Here, surviving above 8,000 feet,

a tree now welcomes the change of season,

the whitebark pine.

All summer, these trees have been soaking up the energy of the Sun

preparing for this moment.

Now, they offer the animals of Yellowstone

a bumper crop of pine cones.

The whitebark pine is gambling on the fact

that animals now need all the food they can get before winter,

and is hoping it can entice them to spread its seeds

far and wide across Yellowstone.

So, inside the cones, it has put tasty, nutritious pine nuts.

A pine squirrel.

It snacks on a few of the nuts to keep going

010年自考《创新思维理论与方法》复习资料汇总

and then buries them, one by one, in a sheltered hollow beside the tree.

If it hides them well and packs them carefully,

they should last through the winter.

But this is not much good for the tree.

Its seeds have gone nowhere.

A grizzly bear mother and cubs.

It's unusual for a grizzly to have so many cubs.

This mother has found two orphans and adopted them.

But now she has four cubs to fatten up

before they go into the den to hibernate this winter.

She's after pine nuts, too.

They are 50% fat.

In a good year, a grizzly bear can put on five pounds a day

eating nuts alone.

If squirrels have done the hard work,

it doesn't matter that grizzlies can't climb trees.