单选题
Fire can do people good and also do bad. Fire can keep you
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, but fire can burn things,
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Big fire can bum trees, houses, animals or people. There are
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interesting old stories about how man started a fire. One of the stories is about
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man. The man
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long time ago. He went up the sun and
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fire down. Today people can make a fire
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matches. But matches can be dangerous (危险). One match can burn a piece of paper, and it can
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burn a house. So you
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be careful with matches. Be careful with fire, and it will
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you. If not, it may hurt you.