This popular textbook series is compiled for English-speaking high school students. Considering the language environment of English-speaking learners, this book has been tested in several big cities such as Chicago. The topics in this series of textbooks have been carefully selected to meet the high school students' interests and are arranged in accordance with the rules of learning a second language. The series is composed of four volumes each of which contains Student's Book, Teacher's Book, Workbooks, and phonetic and listening materials.