作者：李俊志 swx82@21.cn 作者单位：广东省东方明珠学校 简介：Not necessary for me to introduce more. if you are intrersted in it , please try to open it and you aill see how wonderful it is . After all it is with sounds as well as pictures . You have no way but to make your students like yopur lessons.Do you want to communicate with me , please contact 332457308 , this is my qq . Never make an error!