Six Features of the Textbooks1. This textbook series is based on results from action research done by experienced Mandarin Chinese instructors affiliated with U.S. universities and colleges. 2. Eight thematic units run through two volumes of textbooks, covering personal, communitial, societal issues and learning tasks.3. The design of learning tasks and assessment activities aligns with ACTFL’s proficiency benchmarks, three modes of communication, and 5C principles.4. The selection of grammar and vocabulary aligns with the guidelines by HSK and Chinese Language Proficiency Test, with cross-strait differences clearly marked and listed. 5. This textbook series is designed for people from all walks of life and college students to meet the various needs and interests of adult learners. 6. Learners will develop intermediate level oral proficiency, while establishing listening and reading strategies, and eventually become independent learners of Mandarin Chinese. 本教材六大特點1. 本教材為北美一線中文教師行動研究成果