What do you know about fire? Fire is useful(有用的).With fire people can【小题1】food, warm themselves and frighten(使惊吓)animals, But fire can be very dangerous too. For example, it can 【小题2】down buildings and forests. So we must be 【小题3】with fire. We mustn't 【小题4】near fire and we mustn't play with【小题5】.