时间:2019-01-12 作者:英语课 分类:2016年VOA慢速英语(七)月


英语课

The Otherworldly Beauty of Badlands National Park


In this week’s national parks journey, we explore a unique landscape in the north central United States.


The land is big and mostly flat. There are endless fields of corn, wheat and soybeans. Colors of green and gold paint the earth for kilometers.


But as we travel west, the farmland gives way to wild grasses. It grows tall here under a huge blue sky. Farther 1 on, however, the grass becomes much shorter. A strong dry wind blows continuously from the west.


Suddenly, the land is torn and rocky, dry and dusty. The green is gone. Now we are surrounded by light reds and browns. Purple and gold hues 2 can be seen as well. All around are broken, disorganized forms. There are sharp walls of rocks, and hills and valleys of all sizes and shapes.


Welcome to Badlands National Park in the state of South Dakota.


Hundreds of thousands of years ago, this whole area was grassland 3. Then forces of nature destroyed the grass in some parts. Water and ice cut into the surface of the Earth, splitting 4 open some of its oldest rocks. Nature beat at the rocks, wearing them away.


The result is one of the strangest sights, a place of otherworldly beauty.


All together, the Badlands cover more than 15,000 square kilometers. About 10 percent is part of the national park. The area is a study in extremes. Temperatures in the summer have been as high as 46 degrees Celsius 5. In the winter they have dropped to as low as 41 degrees below zero.


Life in the Badlands is difficult. Its name comes from the Lakota Native Americans. They called the area “mako sica” or “land bad” because of the extreme temperatures and harsh 6 landscape.


The term “badlands” has come to be used for areas where soft rock is eroded 8 in a very dry climate.


Looking at a rock wall in the Badlands is like looking back through time. The layers and colors in the Badlands’ strange formations 9 were formed over millions of years.


The long history of the Badlands began some 65 million years ago, around the time the dinosaurs 10 died out. A huge sea covered the middle of North America. It was drying up. The land at the bottom of the sea was black shale 11 rock.


That shale is now at the bottom of the Badlands. The next level of rock is from what geologists 13 call the Oligocene Epoch 14. That period began about 37 million years ago. At that time, the Badlands area was warm and wet. A jungle grew there. A large number of warm-blooded animals lived in the jungle.


Some of these animals were buried in the mud left behind by floods. Over millions of years, their bodies turned to rock. These fossil 15 remains 16 are a record in stone of what ancient animals looked like. The Badlands holds the world’s richest collection of fossils 17 from the Oligocene Epoch. The area contains fossils from rhinos 18, horses, and huge cats.


Because of this evidence here, we know that the period was great for mammals. Their total population worldwide increased greatly. And they grew in body size to take over the land left by the dinosaurs.


About 28 million years ago, the environment of North America became much drier and cooler. The jungle disappeared. The land in the center of the continent became a prairie. A prairie is a large open area of grassland. The prairie here is one of the world’s largest.


The Badlands were created on the western edge of this great prairie. They started to take shape as rain, wind, snow and ice beat down on the land. The rain and ice tore deep cuts in the soft earth. Over time, they became wider and deeper. The wind dried the earth and blew away the top soil.


Today, rain comes to the Badlands mostly in sudden, fierce storms. Often, the area’s rivers are cooked dry by the hot sun and wind. Yet when it rains, the rivers flood. Their waters cut ever deeper into the soft earth.


The Badlands are very dry, but they are not a desert. They are filled with many living things. There are short native grasses and wildflowers. The national park is home to many animals. Bison, bighorn sheep and prairie dogs live here. Prairie dogs are small animals that dig tunnels in the earth and live underground.


Every living thing in the Badlands must be able to survive the extreme conditions.


That includes the humans who have called the area home. Several hundred years ago, the Sioux tribe 19 of Native Americans lived all around the Badlands. At the time, the Badlands were rich with animals. There were wolves and bears, bighorn sheep and deer. The most important animal to the Sioux, however, was the bison.


They look like huge, hairy wild cattle. The Sioux way of life was completely organized around hunting bison. They used every part of the animal. They ate the meat. They made clothing and tents from its fur and skins. They used the bones as tools. They even boiled the feet to make a sticky 20 substance to hold things together.


White settlers who came West also hunted bison. In fact, they hunted bison until very few remained. They also planted crops where the bison had once fed. In time, the Sioux way of life on the Great Plains came to an end.


The settlers and the federal 21 government did not respect Native American cultures. The government expected the Sioux Indians to learn to farm. But the Badlands harsh environment was not good farmland. With few bison left to hunt, the Indians were sent to live on a reservation 22 next to the Badlands area.


Becoming a national park


The Badlands became a national monument in 1939. Congress 23 declared it a national park in 1978. More than 1 million people visit Badlands National Park each year.


The park is now a protected area for bison. The National Park Service moved bison back into the Badlands. The animals are doing well. So are the bighorn sheep, foxes, coyotes, golden eagles, and prairie dogs.


Most of the wild animals must be watched from a distance, especially the bison. The Park Service says a full-grown bison can weigh as much as a small car. It can run faster than a horse, And it can become angry and dangerous easily.


Today, of course, the history of the Badlands continues to be written. As measured in geological 24 time, the Badlands are being destroyed rapidly. The area, with its unusually soft rock, is being worn away at a rate of one centimeter per year. In a few more million years, the Badlands will be worn away, forever.


Words in This Story


otherworldly - adj. seeming to belong to or come from another world


harsh - adj. difficult to experience; unpleasant


erode 7 - v. to gradually destroy (something) or to be gradually destroyed by natural forces (such as water, wind, or ice)


geologist 12 - n. a scientist who studies rocks, layers of soil, etc., in order to learn about the history of the Earth and its life


jungle - n. a tropical 25 forest where plants and trees grow very thickly


soil - n. the top layer of earth in which plants grow


reservation - n. an area of land in the U.S. that is kept separate as a place for Native Americans to live



adj.更远的,进一步的;adv.更远的,此外;far的比较级
  • I can throw the ball farther than you can.这个球我能比你扔得远。
  • The farther hill is five kilometres away.那座更远的小山在五公里以外。
色彩( hue的名词复数 ); 色调; 信仰; 观点
  • When the sun rose a hundred prismatic hues were reflected from it. 太阳一出,更把它映得千变万化、异彩缤纷。
  • Where maple trees grow, the leaves are often several brilliant hues of red. 在枫树生长的地方,枫叶常常呈现出数种光彩夺目的红色。
n.牧场,草地,草原
  • There is a reach of grassland in the distance.远处是连绵一片的草原。
  • The snowstorm swept the vast expanse of grassland.暴风雪袭击了辽阔的草原。
爆裂式的
  • the splitting of the atom 原子的分裂
  • We heard an ear-splitting scream from the terrified girl. 我们听见那个受惊的女孩发出一声刺耳的尖叫声。
adj.摄氏温度计的,摄氏的
  • The temperature tonight will fall to seven degrees Celsius.今晚气温将下降到七摄氏度。
  • The maximum temperature in July may be 36 degrees Celsius.七月份最高温度可能达到36摄氏度。
adj.严厉(酷)的,刺耳的,刺目的,毛糙的
  • The sunlight is very harsh.太阳光很刺眼。
  • Although his words are harsh,there is positiveness in them.虽然他的话很苛刻,但有建设性。
v.侵蚀,腐蚀,使...减少、减弱或消失
  • Once exposed,soil is quickly eroded by wind and rain.一旦暴露在外,土壤很快就会被风雨侵蚀。
  • Competition in the financial marketplace has eroded profits.金融市场的竞争降低了利润。
n.形成( formation的名词复数 );构成;形成物;编队
  • Clouds are formations of condensed water vapour. 云是由凝聚的水蒸气构成的。 来自《简明英汉词典》
  • New word formations have not regularity. 新词的构成没有规律。 来自《简明英汉词典》
n.恐龙( dinosaur的名词复数 );守旧落伍的人,过时落后的东西
  • The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
  • Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
n.页岩,泥板岩
  • We can extract oil from shale.我们可以从页岩中提取石油。
  • Most of the rock in this mountain is shale.这座山上大部分的岩石都是页岩。
n.地质学家
  • The geologist found many uncovered fossils in the valley.在那山谷里,地质学家发现了许多裸露的化石。
  • He was a geologist,rated by his cronies as the best in the business.他是一位地质学家,被他的老朋友们看做是这门行当中最好的一位。
地质学家,地质学者( geologist的名词复数 )
  • Geologists uncovered the hidden riches. 地质学家发现了地下的宝藏。
  • Geologists study the structure of the rocks. 地质学家研究岩石结构。
n.(新)时代;历元
  • The epoch of revolution creates great figures.革命时代造就伟大的人物。
  • We're at the end of the historical epoch,and at the dawn of another.我们正处在一个历史时代的末期,另一个历史时代的开端。
n.化石,食古不化的人,老顽固
  • At this distance of time it is difficult to date the fossil.时间隔得这么久了,很难确定这化石的年代。
  • The man is a fossil.那人是个老顽固。
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
n.化石( fossil的名词复数 );老顽固;食古不化的人;老古董(老人)
  • fossils over two million years old 两百多万年的化石
  • The geologist found many uncovered fossils in the valley. 在那山谷里,地质学家发现了许多裸露的化石。 来自《简明英汉词典》
n.犀牛(rhino的复数形式)
  • There are many reports of people taming and even training Indian rhinos. 有许多关于人们驯养甚至训练印度犀牛的记载。 来自辞典例句
  • The rhinos had fed during the night in the rice fields of these villagers. 犀牛夜里在这些村民的庄稼地里也已吃饱了。 来自辞典例句
n.部落,种族,一伙人
  • This is a subject tribe.这是个受他人统治的部落。
  • Many of the tribe's customs and rituals are as old as the hills.这部落的许多风俗、仪式都极其古老。
adj.粘的,闷热的,困难的,令人不满意的
  • This paste is not sticky enough.这糨糊不黏。
  • Here is a sticky business!这事真难办!
adj.联盟的;联邦的;(美国)联邦政府的
  • Switzerland is a federal republic.瑞士是一个联邦共和国。
  • The schools are screaming for federal aid.那些学校强烈要求联邦政府的援助。
n.保留条件,限制条件;预订座位
  • The instruction should be carried out without any reservation.应当不折不扣地执行这个指示。
  • I accept your statement without reservation.我完全相信你的话。
n.(代表)大会;(C-:美国等国的)国会,议会
  • There were some days to wait before the Congress.大会的召开还有几天时间。
  • After 18 years in Congress,he intented to return to private life.在国会供职18年后,他打算告老还乡。
adj.地质(学)的
  • aeons of geological history 数以亿万年计的地质史
  • The workers skirted the edge of the cliff on a geological survey. 工人们沿着崖壁作了一次地质勘察。 来自《简明英汉词典》
adj.热带的,热带的,炎热的
  • You must grow these tropical flowers in a glasshouse.你必须把这些热带花卉种在温室里。
  • This disease is widespread in tropical areas.这种疾病在热带地区蔓延很广。
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