(2005山东省潍坊市) This is ________ used car. It's much ________ than a new one.

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Living in the Yukon

　　The Yukon is different from most places. It is a part of Canada. The Yukon is bigger than California. Not many people live in the Yukon. There are some good reasons for that.

　　The winters in the Yukon are very cold. Sometimes the temperature goes down to 40°F below zero. Cars won' t start in such cold air. People have to keep a fire going near the car.

　　Homes in the Yukon are usually log cabins (茅屋) . There are no electric lights or telephones in most of the Yukon. Water may have to be carried from a creek(小溪) . A home can be hundreds of miles from the nearest town.

　　Living in the Yukon is certainly not easy. Some people from the U. S. move there anyway. A man and his wife lived in a big town in New Jersey and moved to the Yukon. They like the open space there. They are getting used to new adventures(冒险).

　　One day the woman noticed some sugar spilled in her kitchen. She thought she heard her husband outside, and she went to ask him about the sugar. She came face to face with a black bear. The bear was growling and coming closer. She shut the door fast. “That doesn't happen much in New Jersey”, she said.

1．The Yukon is a part of ________.

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2．What is the main idea of this story?

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3．Many houses in the Yukon have no ________.

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4．People who live in the Yukon probably don' t have ________.

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5．The one who spilled the sugar was probably ________.

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阅读理解

　　The world itself is becoming much smaller by using modern traffic and modern communication means(通讯设备). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest problems is pollution(污染). To pollute means to make things dirty. Pollution comes from many ways. We see it, smell it, drink it and even hear it.

　　Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in one place, man moved to another place. But this is no longer true. Man is now slowly polluting the whole world.

　　Air pollution is still the most serious. It's bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily.

　　Many countries are making rules(法规) to fight against pollution. They stop people from burning coal(煤) in houses and factories in the city, and from putting dirty smoke into the air. Pollution by SO₂ is now the most dangerous kind of air pollution. It is caused(引起) by heavy traffic. We are sure that if there are fewer people driving, there will be less air pollution.

　　The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in pollution at the same time.

1．________, our world is becoming much smaller.

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A．Because of the rise in pollution

B．Thanks to science development(发展)

C．Because the earth is being polluted day and night

D．Because the earth is blown away by the wind every year

2．Hundreds of years ago, life was ________ it is today.

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3．Pollution comes in many ways. We can even hear it. Here “it” means ________.

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4．Air pollution is the most serious kind of pollution because ________.

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A．it makes much noise

B．it makes us angry more easily

C．it makes our rivers and lakes dirty

D．it's had for all living things in the world

5．Which of the following is NOT true?

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A．Many countries are making rules to fight against pollution.

B．The pollution of the earth grows as fast as the world population does.

C．The problem of pollution is not so serious because there are not so many people living on the earth.

D．If people could go to work by bus or bike instead of car or motorbike, it would be helpful in fighting against the problem of SO₂.