摘要
English for Science and Technology （EST）, as one branch of English for Special Purposes, has its own distinctive features and plays a significant role in today＇s English education. In language teaching, teaching materials play an important role. To a great extent, they determine the content and approaches of teaching and learning and affect the quality of language education. The author of this paper makes a tentative analysis of the compilation principles of EST teaching materials, from the perspective of students, scientific and technological discipline, and the English language, highlighting the content of teaching and the motivation of students. This paper proposes the Principles of Interest, Life-Long Development, Appropriateness, Systematization, Cognitive Scientificalness, Illumination, Integration of Abstract Knowledge and Specific Cases, Authenticity, Timeliness, and Comprehensive Improvement, so as to improve both subject competence and linguistic ability
