题目内容
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？
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Passage Four
John Paul Jones was one of the founders of the United States Navy. During the Revolution, the colonies were desperate. They needed men to lead their small ships against the British fleet. Jones was more than willing to fight.
John Paul Jones had once been a captain of a British merchant ship. In 1773, his crew mutinied. One member of the crew tried to gain control of the ship. Jones shot the man to death. The mutiny took place near the port of Tobago, an island in the Caribbean. Authorities there decided to have a trial. This meant certain death for John Paul Jones, since the whole crew would testify against him. One night during a thunderstorm, he escaped from the jail.
He fled to the United States and lived with a family named Jones. His real name was John Paul. He added the name of Jones to his, in honor of the family. He outwitted the British ships that were sent to hunt him down.
When the American Revolution ended he went to serve in the Russian navy. There, he fought the Turks and achieved one of the few major naval victories in the history of Russia. He died in Paris at the age of forty-five.
John Paul Jones is considered both an American and Russian hero, but the English considered him a fugitive.
48. John Paul Jones won a major victory for the Russian navy against the ______.
Passage Four
Many people want to know how to analyze problems they meet. There are six stages in analyzing a problem.
First the person must recognize that there is a problem. For example, Sam's bicycle is broken, and he cannot ride it to class as he usually does. Sam must see that there is a problem with his bicycle.
Next the thinker must define the problem. Before Sam can repair his bicycle, he must find the reason why it does not work. For instance, he must determine if the problem is with the gears, the brakes, or the frame. He must make his problem more specific.
Now the person must look for information that will make the problem clearer and lead to possible solutions. For instance, suppose Sam decided that his bike does not work because there is something wrong with the gear wheels. At this time, he can look in his bicycle repair book and read about gears. He can talk to his friends at the bike shop.
After studying the problem, the person should have several suggestions for a possible solution. Take Sam as an illustration. His suggestions might be: put oil on the gear wheels; buy new gear wheels and replace the old ones; tighten or loosen the gear wheels.
Eventually one suggestion seems to be the solution to the problem. Sometimes the final idea comes very suddenly because the thinker suddenly sees something new or sees something in a new way. Sam, for example, suddenly sees that there is a piece of chewing gum between the gear wheels. He immediately realizes the solution to his problem: he must clean the gear wheels.
Finally the solution is tested. Sam cleans the gear wheels and finds that afterwards his bicycle works
perfectly. In short, he has solved the problem.
48. In analyzing a problem we should do all the following except ______.
Passage One
Sometimes children are kidnapped. Kidnapping is like stealing a child. It is important that kidnapped
children are found and brought home as soon as possible.
The sooner the public knows about a kidnapping the sooner they might be able to help. Some people decided to start a program that would alert the public about kidnappings right away. This program is called Care Alert.
The Care Alert program gives television and radio stations important information about a recently kidnapped child. These stations will then tell the public what happened in hopes that someone might be able to help. Anyone that may have seen something about the kidnapping could then call the police.
Sometimes one parent of a child kidnaps his or her own child. These kidnappings are not usually used in the Care Alert program. The Care Alert program is only used when a stranger has taken a child.
When a child is kidnapped he is in a lot of danger. It is very important to find him as soon as possible. It is hoped that this new Care Alert program will save children's lives.
36. What is kidnapping based on the passage？ It is ______.
This diploma _____ that you have completed high school.
[A] proves
[B] certifies
[C] secures
[D] approves
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