VOA标准英语2012--Tallgrass Still Waves Undisturbed on the Plains
时间：2019-01-13 作者：英语课 分类：VOA标准英语2012年(五月)
Tallgrass Still Waves Undisturbed on the Plains
One-third of North America - stretching from what is now Indiana in the Midwest westward 1 to the Rocky Mountains - and northward 2 from Texas deep into Canada - was once uninterrupted prairie, where Plains Indians hunted free-roaming bison, elk 3 and antelope 4.
A “sea of grass,” the first Europeans called the never-ending prairie. Others called it the “Great American Desert,” thinking that nothing but wild grasses and flowers could grow there.
They were wrong. That sea of grass is now America’s breadbasket.
But following more than a century of settlement and cultivation 5, only two significant pieces of the great tallgrass prairie survive, on hills in eastern Kansas too rugged 6 to farm.
Ranchers bring their cattle - and a herd 8 or two of bison - there to graze where millions of bison once tramped.
In 1996, the nation’s only tallgrass preserve was established when the owners of the Z Bar-Spring Hill Ranch 7 sold their 4,000-hectare property. Not to the federal government but to a private organization called the National Park Trust.
Thus, the Tallgrass Prairie National Preserve became the nation’s only privately 9 owned national park. But government employees manage it and give tours.
It’s a land of subtle beauty, especially when the sun gets low and grasses produce spooky shadows. And in winter, when ice storms create a frozen wonderland.
Four kinds of grasses thrive there: big bluestem, little bluestem, switchgrass, and Indiangrass. Each flowers differently in the spring. And waves slowly nearly every day, since the wind seems to always blow there.
Ninety kilometers away is a larger remnant of the prairie on another former cattle ranch. Called the “Konza Prairie” after a Kansas Indian tribe, it gets few visitors because it’s operated as a facility where researchers test the effects of climate, grazing, and fire.
Like parts of the African savannah and South American pampas, the Konza and the Tallgrass Prairie National Preserve are native prairies. They have never been plowed 10.
The conservation groups that own them intend to keep it that way, so that what one writer called “earth’s eternal lullaby” - the tallgrass prairie - can endure.
- We live on the westward slope of the hill.我们住在这座山的西山坡。
- Explore westward or wherever.向西或到什么别的地方去勘探。
- He pointed his boat northward.他将船驶向北方。
- I would have a chance to head northward quickly.我就很快有机会去北方了。
- I was close enough to the elk to hear its labored breathing.我离那头麋鹿非常近，能听见它吃力的呼吸声。
- The refuge contains the largest wintering population of elk in the world.这座庇护所有着世界上数量最大的冬季麋鹿群。
- Choosing the antelope shows that China wants a Green Olympics.选择藏羚羊表示中国需要绿色奥运。
- The tiger was dragging the antelope across the field.老虎拖着羚羊穿过原野。
- The cultivation in good taste is our main objective.培养高雅情趣是我们的主要目标。
- The land is not fertile enough to repay cultivation.这块土地不够肥沃，不值得耕种。
- Football players must be rugged.足球运动员必须健壮。
- The Rocky Mountains have rugged mountains and roads.落基山脉有崇山峻岭和崎岖不平的道路。
- He went to work on a ranch.他去一个大农场干活。
- The ranch is in the middle of a large plateau.该牧场位于一个辽阔高原的中部。
- She drove the herd of cattle through the wilderness.她赶着牛群穿过荒野。
- He had no opinions of his own but simply follow the herd.他从无主见，只是人云亦云。
- Some ministers admit privately that unemployment could continue to rise.一些部长私下承认失业率可能继续升高。
- The man privately admits that his motive is profits.那人私下承认他的动机是为了牟利。