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听力原文：Trees have a spectacular survival record. Over a period of more than 400 million

听力原文： Trees have a spectacular survival record. Over a period of more than 400 million years, they have evolved as the tallest, most massive and longest-lived organisms ever to inhabit the Earth. Yet trees lack a means of defense that almost every animal has: threes cannot move away from destructive forces. Because they cannot move, all types of living and nonliving enemies—fire, storm, micro-organisms, insects, other animals and later, humans—have wounded them throughout their history. Trees have survived because their evolution has made them into a highly compartmented organism; that is, they wall off injured and infected wood.

In that respect trees are radically different from animals. Fundamentally, animals heal: they preserve their life by making billions of repairs, installing new cells in the positions of old one. Trees cannot heal: they make no repairs, instead, they defend themselves from the consequences of injury and infection by walling off the damage. At the same time they put new cells in new positions; in effect they grow a new tree over the old one every year. The most obvious results of the process are growth rings, which are visible on the cross section of a trunk, a root, or a branch.

(30)

A．Tall.

B．Green.

C．Massive.

D．Long-lived.

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第1题

听力原文：The Europeans who left their homeland in the 18th and 19th centuries and settled

听力原文： The Europeans who left their homeland in the 18th and 19th centuries and settled their homes in North America are referred to as early settlers. Early settlers who came from the eastern parts of the present U.S.A. were used to having many trees around, so they found it rather hard to get used to living in a treeless plain like the state of Nebraska. When they first settled down in Nebraska, they needed large quantities of wood for building houses, making fires and doing many other things. Therefore they started many tree-planting plans that went on for years and years. Finally in 1872, a newspaperman named J. Sterling Morton had an idea: Why not have a special day set aside for planting trees. So Arbor Day was born on April 10th, 1872. The state government announced that it would give prizes to individuals and groups that planted the most trees. On that first day, more than 1,000,000 trees were planted in Nebraska. In this way Nebraska has been full of trees and it's green all the year around.

(33)

A．Who the early settlers were.

B．When the first Arbor Day began.

C．How the first Arbor Day came into being.

D．Who was J. Sterling Morton.

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第2题

听力原文：Elephants live mostly on grass, leaves and fruit. They also eat the twigs and bar

听力原文： Elephants live mostly on grass, leaves and fruit. They also eat the twigs and bark of trees. The quantity of food and water which they consume is enormous, and they can be very destructive in their search for food, there are two main types of elephants. There is the Asiatic elephant, which is found in India, for example, and the African elephant. Superficially they are very much alike, but the African elephant is generally larger. One characteristic of Asiatic elephants is that they do not like being exposed to the sun, and consequently they prefer to live in shady places. They are also very fond of bathing. Apart from that, the most important difference between the two varieties is that the Asiatic elephant is more easily trained. Elephants in India, for example, have been caught and tamed for many hundreds of years. We have already noted that they have good memories, and it is this that makes them easy to train. Since they are immensely strong, they can carry and drag huge objects, such as the trees and rocks. This makes them extremely valuable as beasts of burden.

(30)

A．Asiatic elephants are larger.

B．African elephants do not like being exposed to the sun.

C．African elephants prefer to live in shady places.

D．Asiatic elephants are fond of bathing.

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第3题

听力原文：Windbreaks are barriers formed by trees and other plants. Farmers plant these bar

听力原文： Windbreaks are barriers formed by trees and other plants. Farmers plant these barriers around their fields to protect their land.

Windbreaks stop the wind from blowing soil away (33) . They also keep the wind from destroying or damaging crops. They are very important for protecting grain crops.

There have been studies done on windbreaks in parts of West Africa, for example. These found that grain harvests can be twenty percent higher in fields protected by windbreaks compared to fields without such protection (33) .

But windbreaks seem to work best when they allow some winds to pass through them (341. If the wall of trees and plants blocks the wind completely, then violent air motions will take place close to the ground. These motions will lift soil into the air where it will be blown away.

There should be at least two lines in each windbreak. one line should be large treas. The second line, right next to it, can be shorter trees and other plants with leaves. Locally grown trees and plants are best for windbreaks.

If the quality of the land is not very good, studies have shown that one kind of tree that can grow well is the white pine (35) .

Windbreaks not only protect land and crops from the wind. Surplus trees can be cut down and used to provide wood (33) .

(34)

A．They can prevent soil from being blown away.

B．They can improve the yield of crops.

C．They can provide wood when cut down.

D．They can protect crops from the strong sunshine.

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第4题

听力原文：M: Have you ever visited a redwood forest？W: Redwood？ No, I've never seen a redwo

听力原文：M: Have you ever visited a redwood forest？

W: Redwood？ No, I've never seen a redwood tree, is it red？

M: Yes, its bark is kind of red. I recently had a chance to go to the Mill National Park, north of San Francisco. You can't imagine how big they are.

W: Yeah, how big？

M: The coast redwoods are the tallest living things. Some are more than three hundred and fifty feet high. But none of the trees at Mill is that high. You have to go further north in California to see the tallest trees.

W: You said that Mill is near San Francisco？ I used to think it must be quite a tourist attraction.

M: Yes, it's less than an hour's drive away, so it's easy to get to.

W: I've heard that many redwood trees are thousands of years old. Are the ones in Mill that old？

M: The oldest documented age for a coast redwood is more than two thousand years. The trees at Mill are 400 to 800 years old.

W: Why have they survived so long？

M: They have remarkable resistance to forest fires. Their tough, thick bark protects the trees during a fire. The coast redwoods also like a damp, foggy climate.

W: Then since Mill is near foggy San Francisco, it must be ideal for the trees' survival.

M: Have you ever visited a redwood forest？

W: Redwood？ No, I've never seen a redwood tree, is it red？

M: Yes, its bark is kind of red. I recently had a chance to go to the Mill National Park, north of San Francisco. You can't imagine how big they are.

W: Yeah, how big？

M: The coast redwoods are the tallest living things. Some are more than three hundred and fifty feet high. But none of the trees at Mill is that high. You have to go further north in California to see the tallest trees.

W: You said that Mill is near San Francisco？ I used to think it must be quite a tourist attraction.

M: Yes, it's less than an hour's drive away, so it's easy to get to.

W: I've heard that many redwood trees are thousands of years old. Are the ones in Mill that old？

M: The oldest documented age for a coast redwood is more than two thousand years. The trees at Mill are 400 to 800 years old.

W: Why have they survived so long？

M: They have remarkable resistance to forest fires. Their tough, thick bark protects the trees during a fire. The coast redwoods also like a damp, foggy climate.

W: Then since Mill is near foggy San Francisco, it must be ideal for the trees' survival.

M: Yes, you must go there and see them; It's wonderful; it's the miracle of life.

W: I can't wait.

(20)

A．San Francisco.

B．Forest fires.

C．Redwood trees.

D．Survival skills.

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第5题

听力原文：A beetle invasion in the United States has killed at least twenty million ash tre

听力原文： A beetle invasion in the United States has killed at least twenty million ash trees. The invasion of the emerald ash borer was first discovered near Detroit, Michigan, in 2002. Experts believe the small green insects arrived in the 1990's in shipments of goods from China.

The emerald ash borer has destroyed trees in the Midwest and as Far East in the United States as Maryland. The insects have also spread as far north as Ontario, Canada.

Ash trees can resist many diseases. But they cannot resist the emerald ash borer. It lays eggs on the bark. The young larva drill into and feed on the inner bark. This harms the ability of the tree to transport water and nutrition.

In some places, farmers .are using "detection trees". They have an area where bark has been cut away. The area circles the tree. The process weakens the tree. It makes them easier targets for borers, and shows if the insects are nearby.

Efforts to stop the spread of the emerald ash borer include cutting down affected trees. There are worries that the ash tree might disappear unless the invasion is controlled. To prepare for such a possibility, a government laboratory is asking people to send in the seeds from ash trees. It examines and X-rays the seeds to make sure that there are no living borer fertilized eggs. Only the best seeds are remained and then sent for storage in a seed bank. There, they are dried and frozen. Should the seeds ever be needed, the hope is that scientists might someday develop an ash tree that could resist the little green attackers.

(30)

A．To Michigan.

B．To China.

C．To Maryland.

D．To Canada.

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第6题

听力原文：W: Have you ever visited a redwood forest？ I recently had a chance to go to Muir

Woods National Monument, north of San Francisco.

M: I've never seen a redwood tree. I really can't imagine how big they are.

W: The coastal redwoods are the tallest living things. Some are more than 350 feet high. But none of the trees in Muir Woods is that tall. You have to go further north in California to see the tallest trees.

M: You said that Muir Woods is near San Francisco？ I guess it must be quite a tourist attraction.

W: Yes, it's less than an hour's drive away, so it's easy to get there.

M: I've heard that many redwood trees are thousands of years old. Are the ones in Muir Woods that old？

W: The oldest documented age for a coastal redwood is more than 2,000 years. The trees in Muir Woods are 400 to 800 years old.

M: Why have they survived so long？

W: They have remarkable resistance to forest fires. Their tough, thick bark protects the trees during a fire. The coastal redwoods also like a damp, foggy climate.

M: Then, since Muir Woods is near foggy San Francisco, it must be ideal for the tree's survival. I can't wait to go there.

(23)

A．Redwood trees.

B．Forest fires.

C．San Francisco.

D．Survival skills.

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第7题

听力原文：At a certain time in our lives we consider every place as the possible sites for

听力原文： At a certain time in our lives we consider every place as the possible sites for a house. I have thus searched the country within a dozen miles of where I live. In imagination I have bought all the farms, one after another, and I knew their prices.

The nearest thing that I came to actual ownership was when I bought the Hollowell place. But before the owner completed the sale with me, his wife changed her mind and wished to keep it, and he offered me additional dollars to return the farm to him. However, I let him keep the additional dollars and sold him the farm for just what I gave for it.

The real attraction of the Hollowell farm to me was its position, being about two miles from the village, half a mile from the nearest neighbor, bounded on one side by the river, and separated from the highway by a wide field. The poor condition of the house and fences showed that it hadn't been used for some time. I remembered from my earliest trip up the river that the house used to be hidden behind a forest area, and I was in a hurry to buy it before the owner finished getting out some rocks, cutting down the apple trees, and clearing away some young trees which had grown up in the fields. I wanted to buy it before he made any more of his improvements. But it turned out as I have said.

I was not really troubled by the loss. I had always had a garden, but I don't think I was ready for a large farm. I believe that as long as possible it is better to live free and uncommitted. It makes but little difference whether you own a farm or not.

Questions 26 to 29 are based on the passage you have just heard.

26. What do we know about the speaker？

27. Why did the speaker decide to buy the Hollowell place？

28. Why did the speaker want to buy the farm in a hurry？

29. What does the speaker believe as important in life？

(33)

A．He made money by buying and selling farms.

B．He made a study of many farms before buying.

C．He had the money to buy the best farm in the country.

D．He wanted to buy the oldest farm near where he lived.

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第8题

听力原文：Recent films, books, magazines and newspapers have reported about serious threats

听力原文： Recent films, books, magazines and newspapers have reported about serious threats to the environment. Changes in climate, increasing pollution, rising energy demands, and decreasing supplies of water are worldwide problems. Designers and builders around the world are reacting to these environmental concerns with new conception of green house.

Green houses are designed to be sustainable. Something that is sustainable provides people today with what they need. But it does not use up or damage the natural resources.

Green houses use much less fossil fuels—oil, gas and coal—for energy. The houses are placed on the land so the sun warms them during cold months and is blocked during hot months. The houses have plenty of windows that open to let in cooling air. They have special equipment that uses a lot less water.

Green houses are made of wood from fast-growing trees so old growth forests do not have to be cut. They include recycled materials so something old is re-used, not thrown away as waste. The houses are healthier for people to live in. Materials used in them are not processed with strong chemicals that can produce harmful gases.

Houses that are environmentally friendly are not new. For years, architects in many areas of the world have designed and built them for environmental activists. But now, rapidly rising energy costs are increasing the demand worldwide for green houses that use less energy and other resources.

(33)

A．It is a new design to keep people warm in winter.

B．It is closely sea!0d so that cool air cannot go through.

C．It is a new design without exhausting or harming natural resources.

D．It is created for gardening or fanning.

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第9题

听力原文：W: Hmm, Hi.M: Hi. I'm going door to door tonight to （22) tell people about the st

听力原文：W: Hmm, Hi.

M: Hi. I'm going door to door tonight to (22) tell people about the student action coalition. Do you have a few minutes？

W: Sure. (22) You know I think I read something in the newspaper last week.

M: Yeah. There was an article about this in the last issue. See, (23) we're trying to protect and conserve some of the open spaces on campus.

W: That's right. You are the group that's opposing the extension of the parking lot next to Swing Hall, right？

M: That's us. We must feel that it's important to save some of the natural beauty of the campus, like over-by Swing. Some of those trees are hundreds of years old.

W: It is a pretty spot. My friends and I have had picnics over there by the creek.

M: Then you understand how we feel. We're organizing a rally on Thursday afternoon to get the administration to reconsider the parking lot plan.

W: Well, (24) I have a class on Thursday afternoon.

M: (25) But maybe you could sign this petition？ We're going to submit it to the administration to demonstrate how the students feel about this.

W: (25) Sure, let me get a pen and I'll sign it.

M: I have a pen right here. And let me leave you this pamphlet about the student action coalition. Maybe you could come to some of our meeting. We get together once a month.

W: Yeah. I'd like to know more about your group. Let me know when the next meeting is and I'll try to be there.

(23)

A．She saw them protesting.

B．She read about them in the newspaper.

C．She attended one of their meetings.

D．Her roommate is a member.

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第10题

听力原文：W: Hmm, Hi.M: Hi. I'm going door to door tonight totell people about the student

听力原文：W: Hmm, Hi.

M: Hi. I'm going door to door tonight to tell people about the student action coalition. Do you have a few minutes？

W: Sure. You know I think I read something in the newspaper last week.

M: Yeah. There was an article about this in the last issue. See, we're trying to protect and conserve some of the open spaces on campus.

W: That's right. You are the group that's opposing the extension of the parking lot next to Swing Hall, right？

M: That's us. We must feel that it's important to save some of the natural beauty of the campus, like over-by Swing. Some of those trees are hundreds of years old.

W: It is a pretty spot. My friends and I have had picnics over there by the creek.

M: Then you understand how we feel. We're organizing a rally on Thursday afternoon to get the administration to reconsider the parking lot plan.

W: Well, I have a class on Thursday afternoon.

M: But maybe you could sign this petition？ We're going to submit it to the administration to demonstrate how the students feel about this.

W: Sure, let me get a pen and I'll sign it.

M: I have a pen right here. And let me leave you this pamphlet about the student action coalition. Maybe you could come to some of our meeting. We get together once a month.

W: Yeah. I'd like to know more about your group. Let me know when the next meeting is and I'll try to be there.

(23)

A．She saw them protesting.

B．She read about them in the newspaper.

C．She attended one of their meetings.

D．Her roommate is a member.

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