VOA慢速英语2013 The most unusual national parks in the United States

 

The most unusual national parks in the United¹ States

MARIO RITTER: Welcome to the VOA Special English program EXPLORATIONS². I'm Mario Ritter. Today,  Steve Ember and Sarah Long tell us about two of the most unusual national parks in the United States. They are Volcanoes⁴ National Park and Haleakala National Park, both in Hawaii.

STEVE EMBER: Let me ask you a question: What is the tallest mountain on Earth? Most school children will say the answer is Mount⁵ Everest near the border between Nepal and Tibet⁶.

There is something that is three hundred four meters taller than Mount Everest. However, it is mainly underwater⁷. It begins at the bottom of the Pacific Ocean, and rises more than seventeen kilometers from the ocean floor.

Its name is Mauna Loa. In the Hawaiian language, Mauna Loa means⁸ "Long Mountain." Mauna Loa is more than half of the island of Hawaii, the largest of the Hawaiian Islands.

It is also the largest and most active volcano³ on Earth. It has produced liquid rock called lava⁹ more than thirty times since records were first kept in eighteen forty-three. Today, Mauna Loa is quiet. It is not producing lava. However volcano experts say it is only a matter of time before this happens once again.

SARAH LONG: Mauna Loa is not the only volcano on the island of Hawaii. There are four others. Three of them are no longer active. One of them still is active. It is named Kilauea.

It has produced lava more than fifty times in the last one hundred years. At this moment, red hot lava is pouring out of Kilauea. It has been doing this since nineteen eighty-three.

Sometimes the lava moves slowly. At other times it pours out very fast as huge amounts of pressure force it from the volcano. During these times, it moves almost as quickly as water moving down the side of a mountain. Sometimes Kilauea produces large amounts of lava that seem like rivers of fire.

STEVE EMBER: When the lava from Kilauea reaches the ocean, its fierce¹⁰ heat produces great amounts of steam that rise into the air. The lava is so hot it continues to burn underwater for some time. The lava from Kilauea continues to add land to the island as the volcanoes of Hawaii have always done. It is these volcanoes that formed the islands of Hawaii.

Most of the time the lava of Kilauea seems to move peacefully toward¹¹ the ocean. Yet it is not as peaceful as it seems from a distance. In recent years the lava destroyed one small town on the island. The liquid rock slowly covered the town. It blocked roads and destroyed them. Nothing can stop the lava of Kilauea. Experts say the volcanoes of Mauna Loa and Kilauea are a serious threat¹² to property¹³ on many parts of the island.

Experts say the volcanoes of the island of Hawaii are proof¹⁴ that the changing environment of Earth is, and will always remain, beyond human control.

SARAH LONG: Mauna Loa and Kilauea together form Volcanoes National Park in Hawaii. But another national park has a huge volcano. It is on the island of Maui. It is the Haleakala National Park. Haleakala in the Hawaiian language means "House of the Sun."

Haleakala is another huge volcano. Together with a smaller, much older volcano it helped form the island of Maui. It is no longer considered to be active. In about seventeen ninety, two areas in the side of the huge volcano opened and lava came out. The lava moved down the mountain and into the sea. That was the last recorded activity at Haleakala.

The volcano that contains Haleakala National Park rises three thousand fifty meters above the sea. We would like to take you for a visit to Haleakala. For a few minutes, sit back while we drive the road up to the top of the volcano.

STEVE EMBER: Our trip begins near the ocean today. We drive through the city of Kahului. We see businesses and homes, the buildings you find in any American city. There are more flowers than in many American cities. The Hawaiian Islands are famous for their flowers.

Soon the road begins to go up. The road moves back and forth¹⁵ and around corners as it moves up the face of the mountain. At times our driver must slow the vehicle¹⁶ and turn very sharply¹⁷. Soon, there are no more homes or stores.

From the city of Kahului to the top of Haleakala is about fifty-five kilometers. We will be three thousand fifty meters higher at the top of the mountain.

Very soon, we no longer see trees. We have traveled too high for them to survive. Soon there are only a few plants. Then there is nothing but black lava rock. At one place, we begin to enter the clouds that hang close to the mountain. Our driver turns on the headlights of the vehicle. Ten minutes later, we are above the clouds in the bright sunshine.

The road is good, so the trip takes only about an hour.

SARAH LONG: The National Park Headquarters¹⁸ is about two kilometers from the top. Park officials at the information center tell you about the history of the volcano. They say that it is very safe -- today. They also tell you that it could very well become active again. The experts just do not know.

We soon leave the Park Headquarters and travel up again, this time to the top. There is an area here to leave our vehicle. We walk the last few meters to the top.

As we reach the top, almost everyone says similar things. How strange! Did the violence¹⁹ of a volcano form this? This is so beautiful!

STEVE EMBER: We are on the top looking down inside what was the most active part of the volcano. The shape is almost like a circle except the sides have been stretched -- almost the shape of an egg but longer.

There are only a few plants here and no trees. However the volcano has left thousands of different shapes of lava stone. Hundreds of years of rain and bright sun have cut long paths in the stone.

Time has turned the oldest lava to a soft sand. There are huge mountains. There are also smaller hills that seem to be made of ash or sand. The place is a riot²⁰ of color.

One big mountain seems to be a deep, dark red. Another area seems almost yellow. Another is green, and still another is a beautiful brown color. One area is colored gray that seems to move into a deep black. It looks as if someone has spilled many colors of paint over the huge area. The volcano produced these colors because the lava is very rich in many kinds of minerals.

SARAH LONG: The area we are seeing stretches for a long distance. This morning, high on the mountain in the bright sun, we can see almost forty kilometers of the park. And this is only part of it. There are eleven thousand five hundred ninety-six hectares²¹ of land in the park.

Some of the park is closed to visitors. Scientists do research in those areas. Experts are trying to learn how to grow and protect some of the very unusual plants that live in Haleakala.

One of these plants is called the Silver Sword²². It grows only in Hawaii. It has long, thin, silver leaves. It is very beautiful and unusual.The Hawaiian nene goose also lives here. It is a large bird. Visitors are asked not to come too near the nene. Experts are helping²³ both the Silver Sword plants and the nene geese to reproduce²⁴ so they will not disappear from the Earth.

STEVE EMBER: Thousands of visitors each year enjoy Haleakala National Park on the island of Maui, and Mauna Loa and Kilauea on the island of Hawaii. Ships stop at the two islands and buses take the groups of visitors to see these huge volcanoes.

Many people also fly over the volcanoes in airplanes or helicopters²⁵. This is a safe and popular method of watching Kilauea's lava moving slowly toward the ocean. Other people see it from ships.Visitors also may walk into the rain forest created by the volcano thousands of years ago. Here they can see Waimoku Falls where water drops one hundred twenty meters down the face of a mountain.

Both parks offer visitors a sight of nature that most people never have the chance to enjoy. Visitors can see how an active volcano adds mass to the island.

And they can see inside a volcano that has been silent²⁶ for hundreds of years.

The United States Park Service is responsible²⁷ for both Haleakala and the Hawaii National Volcanoes Park. It works²⁸ hard to keep both these areas as nature created them.

 

1 united   

adj.和谐的；团结的；联合的，统一的

参考例句：

• The whole nation is closely united.全国人民紧密团结。
• The two men were united by community of interests.共同的利益使两个人结合在一起。

2 explorations   

探险旅行( exploration的名词复数 )； 搜寻； 考察； 勘探

参考例句：

• Our underwater explorations also helped to confirm the theory. 我们的水下考察也有助于证实这个理论。
• The geographical explorations had revealed the inadequacies of the existing maps. 地形勘查揭露出现有地图的不妥之处。

3 volcano   

n.火山

参考例句：

• The volcano unexpectedly blew up early in the morning.火山一早突然爆发了。
• It is most risky to go and examine an active volcano.去探察活火山是非常危险的。

4 volcanoes   

n.火山( volcano的名词复数 )

参考例句：

• Volcanoes and geysers erupt. 火山和间歇喷泉均能喷发。 来自《简明英汉词典》
• He has been able to tell us more about active volcanoes than any man alive. 他现在比任何人都能更多地向我们讲述有关活火山的情况。 来自《用法词典》

5 mount   

n.山峰，乘用马，框，衬纸；vi.增长，骑上（马）；vt.提升，爬上，装备

参考例句：

• Their debts continued to mount up.他们的债务不断增加。
• She is the first woman who steps on the top of Mount Jolmo Lungma.她是第一个登上珠穆朗玛峰的女人。

6 Tibet   

n.西藏

参考例句：

• It was the year before last that he went to Tibet.他前年去的西藏。
• I have determined on going to Tibet after graduation.我已决定毕业后去西藏。

7 underwater   

adj.在水中的；adv.在水下

参考例句：

• I've never seen anyone stay underwater that long.我从没见过有人在水下呆那么久。
• This machine has been specially adapted for use underwater.这机器是为水下使用而特别改装的。

8 means   

n.方法，手段，折中点，物质财富

参考例句：

• That man used artful means to find out secrets.那人使用狡猾的手段获取机密。
• We must get it done by some means or other.我们总得想办法把它干完。

9 lava   

n.熔岩，火山岩

参考例句：

• The lava flowed down the sides of the volcano.熔岩沿火山坡面涌流而下。
• His anger spilled out like lava.他的愤怒像火山爆发似的迸发出来。

10 fierce   

adj.凶猛的，残忍的；狂热的，强烈的

参考例句：

• The soldiers got ready for a fierce battle.战士们准备进行一场恶战。
• What he said met with fierce opposition.他的话语遭到激烈反对。

11 toward   

prep.对于，关于，接近，将近，向，朝

参考例句：

• Suddenly I saw a tall figure approaching toward the policeman.突然间我看到一个高大的身影朝警察靠近。
• Upon seeing her,I smiled and ran toward her. 看到她我笑了，并跑了过去。

12 threat   

n.威胁，恐吓，造成威胁的事物

参考例句：

• Never submit to a threat.永远不要屈服于威胁。
• There was a threat of typhoon.有刮台风的兆头。

13 property   

n.财产，所有物，所有权，性质，特性，（小）道具

参考例句：

• He has made over his property to a hospital.他已将财产转交给了一家医院。
• Oil has the property of floating on water.油有浮在水上的特性。

14 proof   

adj.防...的，耐...的，能防护；n.校样，证据，证明；vt.检验，给...做防护措施

参考例句：

• He is living proof of the wonders of modern medicine.他是当代医学奇迹的活证明。
• The proof was fished up from some old papers.校样在旧文件中被找到了。

15 forth   

adv.向前；向外，往外

参考例句：

• The wind moved the trees gently back and forth.风吹得树轻轻地来回摇晃。
• He gave forth a series of works in rapid succession.他很快连续发表了一系列的作品。

16 vehicle   

n.车辆，交通工具，运载工具；媒介，表现手段

参考例句：

• Air is the vehicle of sound.空气是声音传播的媒介。
• The power plant burns used vehicle tyres as fuel.这家电厂用废弃轮胎作燃料。

17 sharply   

adj.锐利地，急速；adv.严厉地，鲜明地

参考例句：

• The plane dived sharply and rose again.飞机猛然俯冲而后又拉了起来。
• Demand for personal computers has risen sharply.对个人电脑的需求急剧增长。

18 headquarters   

n.司令部，指挥部；总部，总店

参考例句：

• Several great guns from the headquarters are coming to see us today.总部的几个大人物今天要来看我们。
• The bank has its headquarters in Pairs.这家银行的总行在巴黎。

19 violence   

n.暴力，暴虐，暴行，猛烈，强烈，强暴

参考例句：

• It was an absolutely senseless act of violence.这是毫无意义的暴力行为。
• They attacked with violence.他们猛烈攻击。

20 riot   

n.暴（骚）乱，（色彩等）极度丰富；vi.聚众闹事

参考例句：

• They had to call the police in order to put down the riot.他们只得叫来警察以平定骚乱。
• Flowers of all sorts are blooming in a riot of colour.百花盛开，万紫千红。

21 hectares   

n.公顷（等于2。471英亩）( hectare的名词复数 )

参考例句：

• Thousands of hectares of forest are destroyed each year. 每年都有几千公顷的森林遭到破坏。
• There sugar-beet plantation areas were expanded to 176000 hectares. 他们的甜菜种植面积增加到176000公顷。 来自《简明英汉词典》

22 sword   

n.剑，刀剑，武力，杀戮

参考例句：

• The soldier cut at his enemy with his sword.那位士兵用自己的剑向敌人砍去。
• With a sweep of his sword he cut through the rope.他用剑一挥把绳子砍断了。

23 helping   

n.食物的一份&adj.帮助人的，辅助的

参考例句：

• The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
• By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。

24 reproduce   

v.生育，繁殖，复制，重做

参考例句：

• The machine can reproduce a key in two minutes.这机器能在两分钟内复制一把钥匙。
• The picture will reproduce well.这照片会印得很清楚。

25 helicopters   

n.直升机( helicopter的名词复数 )

参考例句：

• Recovery ships and helicopters are headed for the splashdown area. 载回船只和直升飞机正向溅落区进发。 来自《现代汉英综合大词典》
• There were two helicopters circling around. 有两架直升机在空中盘旋。 来自辞典例句

26 silent   

adj.安静的，不吵闹的，沉默的，无言的；n.(复数)默剧

参考例句：

• Immediately on his beginning to speak,everyone was silent.他一讲话，大家顿时安静下来。
• The boys looked at the conjuror in silent wonder. 孩子们目瞪口呆地看着那魔术师。

27 responsible   

adj.有责任的，应负责的；可靠的，可信赖的；责任重大的；vi.休息，睡；静止，停止

参考例句：

• He must be responsible to me for this matter.这件事他必须对我负责。
• The police are responsible for the preservation of law and order.警察负责维持法律与秩序。

28 works   

n.作品，著作；工厂，活动部件，机件

参考例句：

• We expect writers to produce more and better works.我们期望作家们写出更多更好的作品。
• The novel is regarded as one of the classic works.这篇小说被公认为是最优秀的作品之一。