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听力原文：Man is a land animal,but he is also closely tied to the sea.Throughout history th

听力原文： Man is a land animal,but he is also closely tied to the sea.Throughout history the sea has served the needs of man.The sea has provided man with food and a convenient way to travel to many parts of the world. Toady,experts believe that nearly two-thirds of the world's population live within eighty kilometers of the seacoast.In the modem technological world,the sea offers many resources to help mankind survive.Resources on land are beginning to grow less.The sea,however,still offers hope to supply many of man's needs in the future.The riches of the sea yet to be developed by man's technology are impressive.Oil and gas explorations have existed for nearly thirty years.Valuable amounts of minerals such as iron,copper exist on the ocean floor.Besides oil and gas,the seas may offer new sources of energy.For example,warm temperature of the ocean can be used as the steam in a steamship.Sea may also offer a source of energy as electricity for mankind.Technology is enabling man to explore even deeper under the sea.It is obvious that the technology to harvest the sea continues to improve.By the 2050,experts believe that the problems to explore the food, minerals and energy resources of the sea will have been largely solved.

What do we learn about the sea in the modem technological world？

A．It is the largest supplier of valuable minerals.

B．It will disappear in about thirty years.

C．It is beginning to grow smaller and smaller.

D．It offers many resources to help mankind survive.

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发布时间：2020-10-24

更多“听力原文：Man is a land animal,but he is also closely tied to the sea.Throughout history th”相关的问题

第1题

听力原文：W: How did Mr. Steward's project mm out？ I heard he had trouble with the financin

g, and then he couldn't get the land he wanted.

M: Well, it's true. He did have difficulty at first, but all in all, the project couldn't have turned out better.

Q: How is Mr. Steward's project now according to the man？

(16)

A．It's one of his unreasonable ideas.

B．It's an example of bad planning.

C．It has turned out a failure for lack of funding.

D．It has turned out fairly successful.

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第2题

听力原文： Millions of years ago, whales lived on land and walked on four legs. Today，whale

s still have small bones that are the remains of their hind legs, but these bones can only be seen on the inside of the whale. No one knows why whales left the land to live in the water.

However, scientists can imagine that when the whales changed their environment, their bodies underwent a change—taking on a more fish-like appearance. This new form. offered less resistance to the water, enabling the whales to swim faster.

Despite their fish-like form, whales are not fish. A whale will drown, just as a man will, if it stays under water too long. When a whale is under water, it closes its nostrils tightly and holds its breath. The air in its lungs becomes very hot and full of water vapor. When the whale rises to the surface and exhales, its hot breath produces a column of water vapor that rises high in the air. A man produces the same effect when he exhales warm air on a cold morning.

Whales are classified as mammals because they bear their young, rather than laying eggs, and because the mother whales give the babies milk. Like other mammals, whales have warm blood. Their blood stays at the same temperature, even when they move from hot to cold water. They keep warm in cold water because they have a thick layer of fat just under their skins. This fat is called blubber, and it is thicker on whales that spend their lives in cold water. Almost all land mammals, except man, have hair on their bodies to keep them warm, but whales, which have very few hairs, are kept warm by their fat.

(33)

A．Indifferent.

B．Admiring.

C．Sympathetic.

D．Tolerant.

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第3题

听力原文：The 22nd of November 1970 is a day that three British soldiers and an army office

听力原文： The 22nd of November 1970 is a day that three British soldiers and an army officer's wife will remember for a long time. On that day the four of them left in their speedboat to go to the club in Castle Peak Bay. They reached the club without any difficulty. But on their return trip in the evening the motor of their boat broke down. They could not repair it, so they drifted along in the boat. Huge waves kept splashing over the sides of the boat. At last they landed on a small island. One of them described it: "it was just a tiny island with long grass and bushes."

They had no food or water, so two of them walked round the island to see if they could find any. "The only thing we saw was a rat," said a man later. Meanwhile the other two persons had made a fire with driftwood to attract the attention of any passing boat. Two boats sailed past but did not stop although the men shouted and waved a burning board at them.

Back on land the families of the four friends had informed the police when they failed to return home by night. Steamers were sent to search for them as they huddled before their fire, tired and cold. At dawn a motorized boat passed by and spotted them. A man and the officer's wife went on board and were taken home. They reported to the police, who went at once to the island and brought the other two men safely back.

(33)

A．The engine of their boat stopped working.

B．The were attacked by thunderstorm.

C．They ran out of oil.

D．They ran out of food.

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第4题

听力原文：What is the primary purpose of the effort mentioned above？（28)A．To bring more sta

听力原文：What is the primary purpose of the effort mentioned above？

(28)

A．To bring more state-owned land into paid land-use contract.

B．To be used for non-agricultural matters.

C．To increase land available for agriculture.

D．To regulate land use.

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第5题

听力原文：W: Fasten your seat belts, sir.M: Of course, I didn't realize we were planning to

听力原文：W: Fasten your seat belts, sir.

M: Of course, I didn't realize we were planning to land so soon.

Q: Where is this conversation probably taking place？

(14)

A．On the plane.

B．On a train.

C．On a bus.

D．In an automobile.

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第6题

听力原文：If the population of the Earth goes on increasing at its present rate, there will

听力原文： If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21st century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on Earth will make it necessary for us to look for open space somewhere else.

An American scientist, Professor Carl Sagan, believes that before the earth's resources are completely exhausted, it will be possible to change the atmosphere of Venus and so create a new world almost as large as Earth itself. The difficulty is that Venus is much hotter than the Earth and there is only a tiny amount of water there.

Sagan proposes that algae, an organism that can live in extremely hot or cold atmospheres and at the same time produce oxygen, should be bred in conditions similar to those on Venus. As soon as this has been done, the algae will be placed in small rockets. Spaceships will than fly to Venus and fire the rockets into the atmosphere. In a fairly short time, the algae will break down the carbon dioxide into oxygen and carbon.

When the algae have done their work, the atmosphere will become cooler but before man can set foot on Venus, it will be necessary for the oxygen to produce rain. The surface of the planet will still be too hot for men to land on it but the rain will eventually fall and in a few years something like Earth will be reproduced on Venus.

(33)

A．The way to ensure the survival of the human race on Venus.

B．The way to breed organisms on Venus.

C．The way to reduce the population of the Earth.

D．The way to conquer the universe.

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第7题

听力原文：Where is the man now？（25)A．On the freeway.B．In the tunnel.C．In McDonalds.D．Downto

听力原文：Where is the man now？

(25)

A．On the freeway.

B．In the tunnel.

C．In McDonalds.

D．Downtown in traffic.

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第8题

听力原文：M：Do you know if this train stops at the Hilton Street？W：There's is a route map o

听力原文：M：Do you know if this train stops at the Hilton Street？

W：There's is a route map over there by the door.

Q：What does the woman mean？

(18)

A．The man should ask the person by the door.

B．The man should ask the conductor.

C．The woman will tell the man when to get off.

D．The man should check the map.

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第9题

听力原文：M: How did Mr. Gray's projects turn out？ I heard he had trouble with the financin

g and he then couldn't get the land he wanted.

W: It's true! He did have difficulties but all in all it couldn't have turned out hatter.

Q: What did you learn about Mr. Gray？

(14)

A．His project proved to be unsuccessful.

B．He was unable to get sufficient money.

C．Lack of land prevented his success.

D．He was successful with his project.

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第10题

听力原文：What information confused the man？（22)A．The ice in the Antarctic will never melt.

听力原文：What information confused the man？

(22)

A．The ice in the Antarctic will never melt.

B．The disasters caused by icebergs are all over the world.

C．The Antarctic is hot with volcanoes.

D．Volcano can protect ice sheet from melting.

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