Touchstone uses a corpus-informed syllabus ensuring students are learning the language that people really use. Activities include a strong focus on inductive learning, personalized practice, and encouraging learner autonomy. Each Student"s Book contains approximately 90 hours of material across 12 topic-based units - with additional grammar and pronunciation practice added for the Second Edition. Student"s Book, Level 4 is at the intermediate CEFR level (B1-B2). Это и многое другое вы найдете в книге Touchstone 2Ed 4 SB (McCarthy, Michael; McCarten)