Contents I. Introduction
Modern distance education model is changing people's teaching concepts, espersially the Web-based Modern Distance Education which is the new generation of education after the first generation of correspondence distance education and the second generation of radio and television. Based on the Web network teaching platform which has rich features and complete structure, Modern Distance Education Mode has become the main carrier of the network education. Furthermore, open learning conditions and abundant learning resources have made the e-learning with the advantages which the traditional teaching methods can not match with. However, the page form books based on the HTML technology lacks three-dimensional sense and realism, which makes learners often feel confused, tired and confused.