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题型:阅读选择 题类:模拟题 难易度:普通

   Fire can help people in many ways. But can also be very harmful. Fire can heat water warm your houses, give light, and cook food. But fire can burn things too. It can burn trees, houses, animals, or people. Sometimes big fires can burn forests.
    Nobody knows for sure how people began to use fire. But there are many interesting, old stories about the first time a man or 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 and brought fire down.
Today people know how to make a fire with matches. 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.
   Fires kill many people every year. So you must be careful with matches. You should also learn to put out fires. Fires need oxygen. Without oxygen they die. There is oxygen in the air. Cover a fire with water, sand, or in an emergency, with your coat or something else. 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. 

(1)、Which is true?

A、We are not sure how people started to use fire. B、It is an Australian who started a fire. C、We know how people began to use fire. D、Nobody knows how to make a fire.
(2)、Children mustn't play with matches because ______.

A、matches burn paper B、it is not interesting C、matches can be dangerous D、they don't know how to make a fire with matches
(3)、If you are going to put out a fire, you ______.

A、must be careful with matches B、ought to know it can be harmful C、have to cover it with water only D、should keep air away from it
(4)、We must be careful with fire, or it ______.

A、can be B、warms our houses C、might burn us D、will help us
(5)、What is the main idea of the passage?

A、Fire can help people in many ways. B、Fire can be both helpful and harmful. C、Fire can burn things and people. D、We must be careful with matches.
举一反三
阅读短文,从每题所给四个选项(A、B、C和D)中选出最佳选项。

    Steel, concrete(混凝土) and glass are the usual materials in any skyscraper. But more high buildings are now using wood.

    In the last four years, Australia, Norway, England and Canada have all built wooden skyscrapers. The latest one is in Sweden, a new, 19-storey wooden hotel called "Sida vid Sida" (Side by Side).

    Why are wooden skyscrapers being chosen ahead of concrete ones? Let's find out.

    Is it strong enough?

    Wood has been used in many Chinese buildings for thousands of years, but is it strong enough for skyscrapers?

    "There's a lot of new materials made out of wood that are able to build big buildings," material expert Dr Michael Ramage told CNN when he was interviewed.

Architects (建筑师)have done thousands of experiment to make sure it is. They place layers of wood across one another coated with special glue to create very strong material.

Wood also lasts a long time and doesn't break down if it is well looked after. The examples include the rooftops of Beijing's Forbidden City and some 700-year-old houses in England.

Ramage also said on the internet that bamboo could be cut in special ways to make it even stronger than normal wood.

    Won't it catch fire?

    Wooden buildings sound dangerous when it comes to fire. But experts say they may be safer than concrete ones if there is a fire.

    "Wood doesn't burn in the way the public imagines," Ramage said. Very small pieces of wood catch fire easily, but very big pieces of wood are quite hard to set on fire, he said.

 请阅读短文,从每小题所给的四个选项中选出能回答所提问题或完成所给句子的最佳答案。

 It's said that about 4% of people sleepwalk(梦游) at night during their lives. That is, you or some of your families and friends have done so. Sleepwalking happens while one is sleeping. Sleepwalkers walk slowly around the house, say something and then go back to sleep. Their eyes are usually open and look right at you as if they were awake. The next day, they remember nothing when they are asked about what happened the night before.

 Sleepwalking is a common problem for many children from 4 to 12 years old. It could run in family. If one of the parents is a sleepwalker, their children may be, too. Scientists still don't know why people sleepwalk, but they find common facts that may lead to sleepwalking. For example, if one is under stress, gets sick or doesn't have enough sleep, he or she will have more chances to sleepwalk. Sleepwalking itself isn't bad, but it may make sleepwalkers get hurt because they are in fact"sleeping" and don't know what they are doing. It is important to keep sleepwalkers from falling down, running into something and even walking out to drive.

 What can we do for sleepwalkers? First, try not to wake up a sleepwalker because it may make him or her scared. All you have to do is to show the sleepwalker the way back to bed. Second, close the windows and doors to stop sleepwalkers from going out. Third, keep any things that may hurt the sleepwalkers away. Remember, if you find someone sleepwalking, the most important thing is to make sure he or she is safe.

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