We can use energy from the sun because ______.

ce that we can use to help meet our energy needs. (Passage 3)

_____ the negative effect it can have on our living environment.

A．neglect

B．release

C．dismiss

D．alter

glect the ______ effect it can have on our living environment.

A．contrary

B．positive

C．negative

D．extensive

n help the whole country as well．(33)Whether or not solar energy can save your money depends on many things．Where you live is one factor．The type of home you have is another．Things like insulation，present energy coats 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 when Mother Nature says 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 suns running out of energy for another several billion years or so．Besides being an endless source of energy, the use of the sun has other advantages as well．(34)The sun doesn't offer as many problems as other energy sources．For example，fossil fuel plants add 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．

Solar coats 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．(35)Solar energy is now in its infancy．It could soon grow to become a major part of our nations energy supply．

(30)

A．There are many factors which can influence the use of solar energy.

B．No matter where you live，you can use solar energy freely.

C．All the houses can be equipped with solar energy system.

D．Only the whole country can afford to use solar energy.

根据下面内容，回答题：

How can we get rid of garbage？ Do we have enough energy sources to meet our future energy needs？

These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source， and at the time it can save the land to hold garbage.

For a long time， people buried garbage or dumped it on empty land. Now， empty land is scarce.

But more and more garbage is produced each year. However， garbage can be a good fuel to use. The things in garbage do not look like coal， petroleum， or natural gas; but they are chemically similar to these fossil fuels. As we use up our fossil-fuel supplies， we might be able to use garbage as an energy source. Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to bol water. The

steam that is produced is used to make electricity or to heat nearby buildings. In Paris， France， some power plants burn almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil.

Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs.

What two problems can man solve by burning garbage？ 查看材料

A.The shortage of energy and air pollution.

B.The shortage of energy and the land to hold garbage.

C.Air pollution and the shortage of fossil fuel.

D.Air pollution and the shortage of land to hold garbage.

Passage Three

How can we get rid of garbage.9 Do we have enough energy sources to meet our future energy needs？

These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the time it can save the land to hold garbage.

For a long time, people buried garbage or dumped it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil fuels. As we use up our fossil-fuel supplies, we might be able to use garbage as an energy source. Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil.

Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs.

44. What two problems can man solve by burning garbage？

A. The shortage of energy and air pollution.

B. The shortage of energy and the land to hold garbage.

C. Air pollution and the shortage of fossil fuel.

D. Air pollution and the shortage of land to hold garbage.

needs？

These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the some time it can save the land to hold garbage.

For a long time, people buried garbage or dumped(倾倒) it on empty land．Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fu el to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil(化石) fuels. As we use up our fossil fuel supplies, we might be able to use garbage as an energy source.

Burning garbage is not a new idea．Some cities in Europe and the United States have been burning garbage for years. (78) The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants bum almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half mil lion barrels of oil.

Our fossil fuel supplies are limited．(79) Burning garbage might be one kind of energy source that we can use to help meet our energy needs. This method could also reduce the amount of garbage piling up on the earth.

What two problems can man solve by burning garbage？

A．The shortage of energy and air pollution.

B．The shortage of energy and the land to hold garbage.

C．Air pollution and the shortage of fossil fuel.

D．Air pollution and the shortage of land to hold garbage.

How can we get rid of garbage (垃圾)？ Do we have enough energy sources to meet our future energy needs？

These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the time it can save the land to hold garbage. For a long time, people buried garbage or dumped (倾倒) it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas, but they are chemically similar to these fossil (化石) fuels. As we use up our fossil-fuel supplies, we might be able to use garbage as an energy source.

(79) Burning garbage is not a new idea. Some city's in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the city's garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil.

(80) Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs. This method could also reduce the amount of garbage piling up on the earth.

What two problems can man solve by burning garbage？

A．The shortage of energy and air pollution.

B．The shortage of energy and the land to hold garbage.

C．Air pollution and the shortage of fossil fuel.

D．Air pollution and the shortage of land to hold garbage.

根据以下内容回答题：

How can we get rid of garbage？Do we have enough energy sources to meet our futureenergy needs？These are two important questions that many people are asking today．Some people think that man might be able to solve both problems at the same time．They suggest using garbage as an energy source，and at the time it can save the land to hold garbage． For a long time，people buried garbage or dumped（倾倒）it on empty land．Now，empty land is scarce．But more and more garbage is produced each year．However，garbage can be a good fuel to use．The things in garbage do not look like coal，petroleum，or natural gas；but thev are chemicallv similar to these fossil（化石）fuels．As we use up our fossil fuel supplies，we might be able to use garbage as an energy source． Burning garbage is not a new idea．Some cities in Europe and the United States have been burning garbage for years．The heat that is produced by burning garbage is used to boil water.The steam that is Droduced is used to make electricity or to heat nearby buildings．In Paris，France，some power plants burn．almost 2 million metric tons of the cities garbage each year．The amount of energy produced is about the same as would be produced by burning almost ahalf million barrels of oil． Our fossil fuel supplies are limited．Burning garbage might be one kind of energy source that we can use to help meet our energy needs．This method could also reduce the amount if garbage piling up on the earth．

Wha two problems can man solve by burning garbage？

A.The shortage of energy and air pollution．

B.The shortage of energy and the land to hold garbage．

C.Air pollution and the shortage of fossil fuel．

D.Air pollution and the shortage of land to hold garbage

needs？

These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source.

For a long time people buried garbage or dumped it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil fuels. As we use up our fossil--fuel supplies, we might be able to use garbage as an energy source.

Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the city's garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil.

But there are problems in using garbage as a fuel. Garbage that bums easily, such as food scraps and paper, must be separated from metals, glass, and other materials that do not burn easily. This separation process is normally costly. (79) Another problem is that burning garbage can pollute the air.

Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs. (80) This method could also reduce the amount of garbage piling up on the earth.

What two problems can be solved by burning garbage？

A．The shortage of energy and air pollution.

B．The shortage of energy and the shortage of empty land for holding garbage.

C．Air pollution and the shortage of empty land for holding garbage.

D．Air pollution and the shortage of fossil fuel.