According to the latest college English curriculum requirements, "the change of teaching mode is not only the change of teaching methods and teaching means, but also the change of teaching concept, that is, the change of teaching thought and practice from teacher-centered to student-centered, not only imparting language knowledge and skills, but also paying more attention to cultivating the practical application ability and autonomous learning ability of language. In the process of compiling teaching materials, We have fully considered the changes of modern university teaching mode, students' learning characteristics and learning tools, innovated teaching modes and methods, followed the principle of teaching students in accordance with their aptitude, and advocated interactive classroom teaching, which not only improved students' English language ability, but also cultivated students' learning strategies.

Innovation of teaching concept

The biggest disadvantage of the existing textbooks in the market is that the content and capacity of the textbooks are out of touch with the actual teaching situation of college English, and the actual English level of non-English majors in colleges and universities and the school schedule are not taken into account. Most of them have difficulties in content and too many schedules, which leads to the regret that students can't grasp the key points in their studies and teachers' teaching can't be arranged as planned. In addition, the existing textbooks are not integrated with CET-4 and CET-6, and the passing rate of CET-4 and CET-6 is the focus of many schools, teachers and students, which leads to the low practicability of the existing textbooks. This set of textbooks published by our Economic Science Publishing House fully takes into account the fact that non-English majors in universities have few class hours and students' English level is generally not high. In the content setting, we pay attention to simple explanation and emphasize the close combination with CET-4 and CET-6. We summarized the material types of CET-4 and CET-6 questions over the years, selected the genres and topics that were tested the most, and determined the unit topics and exercise topic types of each volume in combination with the topics required by College English Curriculum Requirements and CET-4 and CET-6 syllabus. So as to ensure that after learning our four textbooks, students can not only improve their English language ability, but also easily cope with CET-4 and CET-6, killing two birds with one stone, which embodies the characteristics of "new concepts and new functions" in our textbooks.

Presentation form innovation

Different from the large paragraphs in general textbooks, this set of textbooks we compiled pays more attention to the multi-directional transmission of information. There are a lot of real pictures in the book to help students understand and master the contents of various topics. Even if the book is beautifully laid out, it enriches students' thinking.

Innovation of teaching mode

According to College English Curriculum Requirements, "colleges and universities should make full use of modern information technology, adopt computer-based and classroom-based English teaching mode, and improve the single teaching mode based on teachers' lectures". Our textbook has been fully prepared for the allocation of resources. In addition to students' books, teachers' books and workbooks, we also have multimedia learning CDs, multimedia teaching courseware and network resources to enrich the classroom and assist students in learning.