二、阅读理解(11-30)

　　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 crier-gy source, and at the same time it can save the land to hold garbage.

　　For a long time, people buried garbage or dumped (倾倒) it on empty land. N.ow, 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. 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 Pads, 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. This method could also reduce the amount of garbage piling up on the earth.

　　11. 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.

　　答案：B

　　12. Which of the following is not the result of burning garbage?

　　A. The garbage burned is turned into fossil fuels.

　　B. The heat produced is used to boil water.

　　C. The steam produced is used to make electricity.

　　D. The steam produced is used to heat buildings.

　　答案：A

　　13. According to the passage which of the following is NOT true?

　　A. About 2 million metric tons of garbage is burned in some power plants in Paris, France each year.

　　B. In a modern society, more and more garbage is produced each year.

　　C. Using garbage is a good way to solve the problem of energy shortage.

　　D. it will be too expensive to use garbage as an energy source.

　　答案：D

　　14. What is the author' s attitude ?

　　A. Delighted.

　　B. Sad.

　　C. Agreeing.

　　D. Disagreeing.

　　答案：C

　　15. The best title for the passage may be__________.

　　A. Garbage and the Earth

　　B. Fossil Fuel and Garbage

　　C. Land and Garbage

　　D. Garbage Energy Source

　　答案：D

　　Fire can help people in many ways. But it can be very dangerous. Fire can heat water, warm houses, give light and cook. But fire can bum things, too. It can bum trees, houses, animals or people. Sometimes big fires can bum forests.

　　Nobody knows for sure how people began to use fire. But there are many interesting stories about the first time a man or a woman started a fire. One story from Australia tells about a man very, very long time ago. He went up to the sun by a rope (绳子) and brought fire down.

　　Today people know how to make a fire with matches (火柴) . Children sometimes like to play with them. But matches can be very dangerous. One match can burn a piece of paper and then it might burn a house. A small fire can become a big fire very fast. Fire kills many people every year. So you must be careful with matches. You should also learn to put out fires. Fires need oxy-gen (氧气). Without oxygen they will die. Cover a fire with water, sand, or sometimes with your coat. This keeps the air away from a fire and kills it. Be careful with fire, and it will help you. Be careless with fire, and it. will burn you.

　　16. How did people begin to use fire?

　　A. Not everybody knows how people begari to use fire.

　　B. Nobody knows how to make a fire.

　　C. It is an Australian who started a fire.

　　D. We are not sure how people began to use fire.

　　答案：D

　　17. Children mustn' t play with matches because__________.

　　A. matches bum paper

　　B. it isn' t interesting

　　C. they can be dangerous

　　D. they can bum a house

　　答案：C

　　18. When you are going to put out a fire, you__________.

　　A. must be careful

　　B. should keep air away from it

　　C. must know it is dangerous

　　D. should cover it with water

　　答案：B

　　19. We must be careful with fire, or it__________.

　　A. will die

　　B. will warm our houses

　　C. might burn us

　　D. won' t help us

　　答案：C

　　20. Which of the following is the main idea of this passage?

　　A. Fire can help people in many ways.

　　B. Fire can be both helpful and dangerous.

　　C. Fire can burn things and people.

　　D. We must be careful with matehes.

　　答案：B