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Lakes seem to be warming faster in Asia.A．RightB．WrongC．Not mentioned
Lakes seem to be warming faster in Asia.
A．Right
B．Wrong
C．Not mentioned
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Lakes seem to be warming faster in Asia.
A．Right
B．Wrong
C．Not mentioned
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更多“Lakes seem to be warming faste…”相关的问题
Lakes seem to be warming faster in Asia. 查看材料
A.Right
B.Wrong
C.Not mentioned
听力原文： I want to talk today about some studies. They seem to indicate that there is a startling world-wide decline in the number of amphibians, such as frogs, toads and salamanders. There's little doubt that one reason why the number of amphibians is declining is their habitats have been destroyed when the developers fill in ponds and marshes to build houses. Amphibians can't just move somewhere. They need water to lay their eggs in. Another problem is the growing fish industry. Another range of popular pool fish such as carp have been introduced to many lakes and ponds all over the world. Raising and selling these fish can be profitable, but the fish eat the eggs and offspring of amphibians that were already living in the lakes and ponds. Other factors could be contributing to the decline include acid rain and the spread of pesticide residues. Many pesticides that farmers added to their crops are eventually washed away by the rain and end up in ponds and other bodies of water where amphibians live. Amphibians are especially vulnerable to pesticides dissolved in the water because of their moist skins. Water can pass through amphibians allowing toxins dissolved in the water to enter the amphibians' body.
What does the speaker mainly discuss？
A．The distribution of different species of amphibians.
B．Possible reasons for reduction in the number of amphibians.
C．The effects of environmental change on the fish industry.
D．Guidelines for the responsible use of pesticides.
Many said "No way. Rain would wash the black powder from the atmosphere. But in America, air sampling balloons have detected high concentrations of particles similar to those that were collected in Kuwait. Some oil didn't catch fire. It has formed huge lakes in the Kuwaiti desert. They trap insects and birds, and poison a variety of other desert animals and plants.
The only good news is that the oil lakes have not affected the underground water resources. So far, the oil has not been absorbed because of the hard sand just below the surface.
Nothing, however, stops the oil from evaporating. The resulting poisonous gases are choking nearby residents. Officials are trying to organize a quick cleanup, but they are not sure how to do it. One possibility is to burn the oil. Get those black-powder detectors ready.
What is the problem with the elm tree near Jackson Hall？
A．It has grown too tall for its designated space.
B．It may be diseased.
C．Its branches are being broken off.
D．It no longer hears from.
Many said" No way？; Rain would wash the black powder from the atmosphere. But in America, air-sampling bal loons have detected high concentrations of particles similar to those collected in Kuwait didn't catch fire. It has formed huge Takes in the Kuwaiti desert. They trap insects and birds ,and poison a variety of other desert animals and plants.
The only good news is that the oil lakes have not affected the underground water resources. So far, the oil has not been absorbed because of the hard sand just below the surface.
Nothing, however, stops the oil from evaporating. The resulting poisonous gases are choking nearby residents.
Officials are trying to organize a quick cleanup, but they are not sure how to do it. One possibility is to burn the oil. Get those black-powder detectors ready.
What were the scientists worried about soon after the Gulf War？
A．The threat of poisonous desert animals and plants.
B．The exhaustion of energy resources.
C．The destruction of oil wells.
D．The spread of the black powder from the fires.
What does the speaker mainly discuss？
A．The distribution of different species of amphibians.
B．Possible reasons for reduction in the number of amphibians.
C．The effects of environmental change on the fish industry.
D．Guidelines for the responsible use of pesticides.
根据以下材料，回答题
Lakes， Too， Feel Global Warming
There"s no doubt: In the last few decades， the average temperature on Earth has been higher than it has been in hundreds of years. Around the world， people are starting to measure the effects of global warming—— and trying to figure out what to do about it.
Scientists recently used satellites to study the temperatures of lakes around the world， and they found that lakes are heating up. Between 1985 and 2009， satellites recorded the nighttime temperatures of the surfaces of 167 lakes. During those 24 years， the lakes got warmer——by an average of about 0.045 degree Celsius per year.
In some places， lakes have been warming by as much as 0.10 degree Celsius per year. At that rate， a lake may warm by a full degree Celsius in just 10 years. That difference may seem small——you might not even notice it in your bath. But in a lake， slightly warmer temperatures could mean more algae （水藻）， and algae can make the lake poisonous （有毒的） to fish.
The study shows that in some regions， lakes are warming faster than the air around them. This is important because scientists often use measurements of air temperature to study how Earth is warming. By using lake temperatures as well， scientists can get a better picture of global warming.
The scientists say data on lakes give scientists a new way to measure the impact of climate change around the world.
That"s going to be useful， since no country is too big or too small to ignore climate change.
Scientists aren"t the only ones concerned. Everyone who lives on Earth is going to be affected by the rapid warming of the planet. Many world leaders believe we might be able to do something about it， especially by reducing the amount of greenhouse （温室） gases we put into the air.
That"s why the United Nations started the Framework Convention on Climate Change， or UNFCCC. Every year the convention meets， and representatives from countries around the world gather to talk about climate change and discuss global solutions to the challenges of a warming world.
Scientists have been keeping records of lake temperatures for over 30 years. 查看材料
A.Right
B.Wrong
C.Not mentioned
听力原文： When Iraqi troops blew up hundreds of Kuwaiti oil wells at the end of the Gulf War, scientists feared an environmental disaster. Would black powder in the smoke from the fires circle the globe and block out the sun？ Many said "No way. Rain would wash the black powder from the atmosphere.' But in America air-sampling balloons have detected high concentrations of particles similar to those collected in Kuwait. Now the fires are out, and scientists are turning their attentions to yet another threat: the oil that did not catch tire. It has formed huge lakes in the Kuwaiti desert. They trap insects and birds and poison a variety of other desert animals and plants.
The only good news is that the oil lakes have not affected the underground water resources. So far the oil has not been absorbed because of the hard sand just below the surface. Nothing, however, stops oil from evaporating. The resulting poisonous gases are choking nearby residents. Officials are trying to organize a quick clean-up, but they are not sure how to do it. One possibility is to bum the oil and get those black powder protectors ready.
(30)
A．The threat of poisonous desert animals and plants.
B．The exhaustion of energy resources.
C．The destruction of oil wells.
D．The spread of the black powder from the fires.
No other capital in Europe has more charm (迷人) or a richer past than Vienna, the capital of Austria. Green woods, mountains, and the large Danube River give the city beautiful surroundings.
Vienna has more than 1,600,000 people. Almost one-fourth of all the people of Austria live there. Vienna is sometimes called "a city without a country". It is so big that it does not seem to be suitable (适合的) in so small a country as Austria.
Vienna was a center of science and art and music, too. Many great musicians lived there. It had the name of being a city of spirits, partly because of the dance music and operettas (轻歌剧) written by Viennese musicians.
After World War Ⅰ Vienna found itself the capital of a rather poor country of less than 7, 000,000 people. World War Ⅱ made Vienna even worse than it was before. Since 1955, however, Vienna has been fast regaining its past greatness.
Vienna is a city which is ______.
A．the most beautiful city in Europe
B．so big that it doesn't belong to Austria
C．the richest capital in Europe now
D．a small capital of a large country
The Illusion of Progress
—by Lester R. Brown
Lester R. Brown is a senior researcher at the Worldwatch Institute, which every year since 1984 has produced a volume about the State of the World. Each year, this book updates information on poverty, overpopulation, air and water quality, agricultural land, and other world conditions. A respected sourcebook, it is consulted by the United Nations and other organizations concerned about protecting our world environment. The following reading is an excerpt from the first chapter of State of the World, 1992.
For about four-fifths of human beings born since World War Ⅱ, life has seemed to be a time of continuous economic progress. The global economic production is about five times larger than it was in 1950. The increase in economic growth every ten years has been similar to the increase from the beginning of civilization until 1950.
World food production has also increased a great deal. This was a result of increased demand caused by population growth and rising wealth, and was made possible by modern technology. The world's grain harvest is 2.6 times larger than it was in 1950. No other generation of human beings has seen such large gains in production.
Such gains would seem to be a cause for celebration, but instead there is a sense of illusion, a feeling that not so much progress has been made. One reason for this is that our system of national accounting used to measure progress considers the loss in value of factories and equipment, but does not consider the using up of natural resources. Since mid-century, the world has lost nearly one-fifth of the topsoil from its croplands, a fifth of its tropical rain forests, and tens of thousands of its plant and animal species.
During this same period, atmospheric carbon dioxide (CO＜下标＞2) levels have increased by 13 percent, causing hotter summers. The protective ozone (臭氧) layer in the stratosphere has decreased by 2 percent worldwide and far more over Antarctica. Dead lakes and dying forests have resulted from industrialization. Historians in the twenty-first century may admire our economic performance —but regret the environmental consequences.
Throughout our lifetimes, economic trends have shaped environmental trends, often affecting the earth's natural resources and systems in ways not clear at the time. Now, as we enter the nineties, the reverse is also beginning to happen: environmental trends are beginning to shape economic trends.
Environmental damage to the planet is beginning to affect harvests of food. The effects of losing 24 billion tons of topsoil each year are being felt in some of the world's major food-producing regions. Recent studies indicate that air pollution is damaging crops in both auto-centered economies of the West and coal-burning economies of the East.Meteorologists cannot yet be certain, but the hotter summers and decreased rainfall of the eighties may be early indications of the greenhouse effect.
Environmental damage undoubtedly was a cause of slower growth in world grain production during the eighties. The doubling of grain output mentioned above occurred between 1950 and 1984; since then, there has been no significant increase. The 1989 estimated harvest (1.67 billion tons) was up only i percent from that of 1984, which means that grain output per person is down nearly 7 percent.
Large amounts of previously stored food have. been used up. In some areas, people have consumed less food. Although five years is not long enough to indicate a long-term trend, this does show that the world's farmers are finding it more difficult to keep up with growth in population.
Nowhere is this
A．Y
B．N
C．NG
No other capital in Europe has more charm(迷人) or a richer past than Vienna, the capital of Austria. Green woods, mountains, and the large Danube River give the city beautiful surroundings.
Vienna has more than 1 600 000 people. Almost one-fourth of all the people of Austria live there. Vienna is sometimes called "a city without a country". It is so big that it does not seem to be suitable (适合的) in so small a country as Austria.
Vienna was a center of science and art and music, too. Many great musicians lived there. It had the name of being a city of spirits, partly because of the dance music and operettas(轻歌剧) written by Viennese musicians.
After World War I, Vienna found itself the capital of a rather poor country of less than 7 000 000 people. World War Ⅱ made Vienna even worse than it was before. Since 1955, however, Vienna has been fast regaining its past greatness.
Vienna is a city which is ______.
A．the most beautiful city in Europe
B．so big that it doesn't belong to Austria
C．the richest capital in Europe now
D．a small capital of a large country
