Childhood is usually regarded as a happy and carefree period of a man's life.In the west Christmas is a happy time,especially for children.In order to understand the painful experience the little boy underwent on Christmas Eve,the author choose Christmas as the background of the story which heightens its tragic effect.Childhood is usually regarded as a happy and carefree period of a man’s life. In the west Christmas is a happy time, especially for children. In order to understand the painful experience the little boy underwent on Christmas Eve, the author choose Christmas as the background of the story which heightens its tragic effect