Fire can help people in many ways. But it can also be very harmful．Fire can keep your house warm, give light and cook food. But fire can burn things （ 1 ） . Big fire can burn, trees, houses, animals or people. Nobody knows how people began to use fire. But there are many interesting old stories about how a man or woman started a fire. One is （ 2 ） a man .The man lived a very 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 （ 3 ） to play with them. But matches can be very dangerous. One match can burn a piece of paper. And then it could burn a house. A small fire can turn a big fire very quickly, So you （ 4 ） be careful with matches. Be careful with fire, and it will （ 5 ） you. But if you aren’t careful with fire, and it may hurt you. 3、根据短文内容，在A、B、C、D、E五个选项中，选出最佳答案填入文中【3】处。（）.
A. too B. about C. must D. help E. like