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Fire can help people in many ways. But it can also be very harmful. Fire can make water hot and houses warm, give light and cook food. But fire can burn things, too. It can make trees, houses, animals and other things catch fire. If some people can't run away from fire, it can kill them. This happens in every country. Sometimes a big fire can burn forests and destroy many tall buildings. Nobody knows clearly when people began to make a 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 a long time ago. He went up to the sun 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. The match can burn a piece of paper and then it can burn a house. A small fire can become a big fire. Fire kills many people every year. So we must be careful with fire.
1．The text mainly tells us ________.
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2．The word “destroy” in the text means ________ in Chinese.
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3．Matches can be dangerous because ________.
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A．they always burn a house
B．they can make things catch fire
C．they can burn a piece of paper
D．they kill many animals every year
4．Now people know fire can be ________.
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5．Which of the following is NOT true?
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A．Fire can make houses warm and cook food.
B．Fire can be harmful.
C．Fire can burn a house and kill people.
D．We know when man began to make a fire.
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| We sometimes call the lion "the king of the jungle (丛林)" because it is stronger and more dangerous than other animals. It can 1 faster than many animals and it can hunt (捕猎) the best. It is the highest animal in the 2 food chain (食物链). In the sea, the shark is one of the animals at the 3 of the food chain. It can swim faster than 4 other sea animals, and it can use its big teeth to eat them. What is at the top of the world's food chain? 5 are! We are not the biggest or fastest, but we are the 6 . We could not run faster than cheetahs (猎豹), so we 7 cars and now we can move the fastest. We could not 8 better than lions, so we invented guns (枪). Now we can hunt the best. People's inventions are clever, but they can be 9 , too. For example, people invented 10 , and now they make the air and rivers dirty. This can make 11 hanges. Dirty rivers kill fish. 12 bears cannot eat the fish and the bears die. If we kill one part of the food chain, 13 also die. Remember that we are a part of the food chain, 14 we are in danger too! If we protect animals, we are protecting 15 ! We should and we could do something for the world! | ||||
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