Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, and transport people and products from place to place. Most energy comes from fossil fuels—petroleum, coal, and natural gas. However, burning fuels causes pollution. Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty-first century. Scientists are working hard to find other kinds of energy for the future. What might these sources of energy be?

                   Energy from the wind

   All over the world, people use the power of the wind. It turns windmills and moves sailboats. It is a clean source of energy, and there is lots of it. Unfortunately, if the wind does not blow, there is no wind energy.

Energy from water

   When water moves from a high place to a lower place, it makes energy. This energy is used to create electricity. In Brittany, France, for example, waterpower produces enough energy to light a town of 40,000people. Waterpower gives energy without pollution. However, people have to build dams to use this energy. Dams cost a lot of money, so water energy is expensive.

Energy from the earth

There is heat in rocks under the earth. Scientists use this heat to make geothermal energy. San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is possible only in a few places in the world.

Energy from the sun

Solar panels on the roofs of houses can turn energy from the sun into electricity. These panels can create enough energy to heat an entire house. Solar power is clean and there is a lot of it in sunny places. But when the weather is bad, there is no sunlight for energy.

1.What does this passage mainly talk about?

   A．Advantage of the energy from nature.

   B．The future of the energy.

   C．Scientists have been working hard to research other kinds of energy.

   D．Energy is the most important power in the word.

2.From the first paragraph we know ______.

   A．energy can do everything for people

   B．all the energy causes pollution

   C．the new kinds of energy are badly needed

   D．scientists have found other kinds of energy for the future

3.What is the writer’s opinion about the energy?

   A．Try to use water energy more though it costs a lot.

   B．Each natural energy has its own advantages and disadvantages.

   C．Solar power is environmental.

   D．Wind power is the cheapest but we can’t get.

4.What can be inferred from the passage?

   A．In order to protect our environment, we should try other kinds of energy.

   B．All scientists in the world will unite to find energy.

   C．People in modern life use energy every day.

D．Energy changes people’s lives.

Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, and transport people and products from place to place. Most energy comes from fossil fuels—petroleum, coal, and natural gas. However, burning fuels causes pollution. Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty-first century. Scientists are working hard to find other kinds of energy for the future. What might these sources of energy be?

                      Energy from the wind

   All over the world, people use the power of the wind. It turns windmills and moves sailboats. It is a clean source of energy, and there is lots of it. Unfortunately, if the wind does not blow, there is no wind energy.

Energy from water

   When water moves from a high place to a lower place, it makes energy. This energy is used to create electricity. In Brittany, France, for example, waterpower produces enough energy to light a town of 40,000people. Waterpower gives energy without pollution. However, people have to build dams to use this energy. Dams cost a lot of money, so water energy is expensive.

Energy from the earth

There is heat in rocks under the earth. Scientists use this heat to make geothermal energy. San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is possible only in a few places in the world.

Energy from the sun

Solar panels on the roofs of houses can turn energy from the sun into electricity. These panels can create enough energy to heat an entire house. Solar power is clean and there is a lot of it in sunny places. But when the weather is bad, there is no sunlight for energy.

1.What does this passage mainly talk about?

    A．Advantage of the energy from nature.

B．The future of the energy.

C．Scientists have been working hard to research other kinds of energy.

D．energy is the most important power in the word.

2.From the first paragraph we know ______.

A．energy can do everything for people

B．all the energy causes pollution

C．the new kinds of energy are badly needed

D．scientists have found other kinds of energy for the future

3.What is the writer’s opinion about the energy?

A．Try to use water energy more though it costs a lot.

B．Each natural energy has its own advantages and disadvantages.

C．Solar power is environmental.

D．Wind power is the cheapest but we can’t get.

4.What can be inferred from the passage?

A．In order to protect our environment, we should try other kinds of energy.

       B．All scientists in the world will unite to find energy.

C．People in modern life use energy every day.

D．Energy changes people’s lives.

阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项。

　　Solar energy for your home is coming. It can help you as a single home owner. It can help the whole country as well. Whether or not solar energy can save your money depends on many things. Where you live is one factor and the type of home you have is another. Things like insulation (绝缘材料), present energy costs, and the type of system you buy are added factors.

　　Using solar energy can help save our precious fuel. As you know, our supplies of oil and gas are very limited. There is just not enough on hand to meet all our future energy needs. Sooner or later Mother Nature will say that's all. The only way we can delay hearing those words is by starting to save energy now and by using other sources, like the sun.

　　We won't have to worry about the sun's running out of energy for another several billion years or so. Besides, the sun doesn't offer as many problems as other energy sources. For example, fossil fuel (矿物燃料) adds to already high pollution levels. With solar energy, we will still need sources of energy, but we won't need as much. That means we can cut down on our pollution problems.

　　With all these good points, why don't we use more solar power? There are many reasons for this. The biggest reason is money. Until now, it was just not practical for a home owner to put in a solar unit. There were cheaper sources of energy.

　　All that is changing now. Solar costs are starting to equal the costs of oil and electricity. Experts say that gas, oil and electricity prices will continue to rise. The demand for electricity is increasing rapidly. But new power plants will use more gas, oil or coal. Already in some places the supply of electricity is being rationed (限量供应). Solar energy is now in its infancy (初期). It could soon grow to become a major part of our nation's energy supply.

(1) What's this passage mainly about?

[　　]

A．Something about solar energy and pollution.

B．Solar energy.

C．Energy and pollution.

D．Energy and money.

(2) Solar energy can help us ________.

[　　]

A．escape punishment from nature

B．become home owners

C．get rid of present energy

D．save our precious fuel

(3) The sun is an endless source of energy, and it will not run out of energy for ________.

[　　]

A．several million years

B．several hundred years

C．several billion years

D．several thousand years

(4) Which of the following statements is TRUE?

[　　]

A．Energy from coal would not pollute our living environment.

B．Energy from natural gas would not pollute our living environment.

C．Energy from the sun would not pollute our living environment.

D．Energy from oil would not pollute our living environment.

(5) Solar energy is now in its infancy, ________.

[　　]

A．but in the future it will become an important part of our nation's energy supply

B．so we will build more power plants

C．and the supply of electricity will be rationed throughout the country

D．so we don't need it

Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, and transport people and products from place to place. Most energy comes from fossil fuels—petroleum, coal, and natural gas. However, burning fuels causes pollution. Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty-first century. Scientists are working hard to find other kinds of energy for the future. What might these sources of energy be?
Energy from the wind
All over the world, people use the power of the wind. It turns windmills and moves sailboats. It is a clean source of energy, and there is lots of it. Unfortunately, if the wind does not blow, there is no wind energy.
Energy from water
When water moves from a high place to a lower place, it makes energy. This energy is used to create electricity. In Brittany, France, for example, waterpower produces enough energy to light a town of 40,000people. Waterpower gives energy without pollution. However, people have to build dams to use this energy. Dams cost a lot of money, so water energy is expensive.
Energy from the earth
There is heat in rocks under the earth. Scientists use this heat to make geothermal energy. San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is possible only in a few places in the world.
Energy from the sun
Solar panels on the roofs of houses can turn energy from the sun into electricity. These panels can create enough energy to heat an entire house. Solar power is clean and there is a lot of it in sunny places. But when the weather is bad, there is no sunlight for energy.
【小题1】What does this passage mainly talk about?

A．In order to protect our environment, we should try other kinds of energy.

B．All scientists in the world will unite to find energy.

C．People in modern life use energy every day.

D．Energy changes people’s lives.

Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, and transport people and products from place to place. Most energy comes from fossil fuels—petroleum, coal, and natural gas. However, burning fuels causes pollution. Also, if we don’t find new kinds of energy, we will use up all the fossil fuels in the twenty-first century. Scientists are working hard to find other kinds of energy for the future. What might these sources of energy be?
Energy from the wind
All over the world, people use the power of the wind. It turns windmills and moves sailboats. It is a clean source of energy, and there is lots of it. Unfortunately, if the wind does not blow, there is no wind energy.
Energy from water
When water moves from a high place to a lower place, it makes energy. This energy is used to create electricity. In Brittany, France, for example, waterpower produces enough energy to light a town of 40,000people. Waterpower gives energy without pollution. However, people have to build dams to use this energy. Dams cost a lot of money, so water energy is expensive.
Energy from the earth
There is heat in rocks under the earth. Scientists use this heat to make geothermal energy. San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is possible only in a few places in the world.
Energy from the sun
Solar panels on the roofs of houses can turn energy from the sun into electricity. These panels can create enough energy to heat an entire house. Solar power is clean and there is a lot of it in sunny places. But when the weather is bad, there is no sunlight for energy.
【小题1】What does this passage mainly talk about?