答案:【计分规则】: 该题主要考查学生对单元内容的理解和掌握,以及英语表达能力。学生回答中包含参考答案要点,且语言无误,条理清晰,即可得满分。参考答案如下:1) The main reason is that it fits well Chinese female figure, has simple lines and looks elegant. 2) It is suitable for wearing in all seasons by old and young. The cheongsam can either be long or short, unlined or interlined, woolen or made of silk floss. 3) Besides, with different materials, the cheongsam presents different styles. Cheongsams made of silk with patterns of flowerlet, plain lattices or thin lines demonstrate charm of femininity and staidness; those made of brocade are eye-catching and magnificent and suitable for occasions of greeting guests and attending banquets.