this book is divided into 3 parts: vocabulary, grammar, and practice with 12 chapters in all.vocabulary: this is the first part which consists of 6 chapters. each chapter introduces a part of speech together with some knowledge points and related exercises.grammar: the second part ranges from chapter 7 to chapter 10. each chapter deals with a grammar lesson coupled with related exercises.practice: the third part is comprised of chapter 11 and chapter 12. chapter 11 contains 6 practice sets, and chapter 12 provides 2 practice tests, which, firstly, help learners familiarize themselves with the format of this part in an actual toefl junior test and, secondly, check their progress after using the book.