The New Series of College English Textbooks * * * Level 6: preparatory course, 1-4, advanced course. This series of textbooks adopts the principle of compiling multi-skill syllabus, aiming at improving learners' English communicative competence in an all-round way, taking communicative themes as the main line, meaning construction as the basis, activity-oriented, task-driven, and constructing knowledge through diversified communicative activities and inquiry learning. Formative evaluation is an important teaching evaluation method to cultivate students' comprehensive analysis ability and cross-cultural communication ability.