YCT Standard Course Book 4. The book has 12 lessons covering 78 words 20 grammar and function items of YCT level 3. Lessons 1 11 are teaching lessons while lesson 12 is a revision lesson. The suggested class hours for each lesson are 34 hours. Each lesson in Book 4 consists of Key sentences Lets learn new words Lets read texts Activities and exercises Songs Mini stories and Model test page. The Youth Chinese Test YCT is an international standardized test of Chinese proficiency which evaluates t