Fire can help people in many 1 . But it can also be dangerous. Fire can keep your house 2 ， give light and cook food. But fire can burn things too.
3 knows how people began to use fire. But there are many interesting old stories about how a man or a woman 4 a fire. One is about a man. The man lived a very long time ago. He went up to the sun and 5 fire down.
Today people know how to 6 a fire with matches（火柴）. Children sometimes like to play with them. But matches can be very 7 . One match can burn a piece of paper， and it could burn a house. A small fire can 8 into a big fire very quickly. So you 9 be careful not to play with fire.
If you are careful， fire will help you a lot. But if you are not careful enough， it may 10 you.
