对年轻朋友的热切期盼顾德希教了几十年语文，临近退休了，想得最多的，常常还是那些曾经长期困扰、终于若有所悟却又深感不易解决的问题。于是，很自然就会想，要是年轻朋友早早就有所悟就着手来解决这些问题该多好！一堂语文课，到底有哪些语文知识是非讲给学生不可的？... Enthusiastically looking forward to young friends Gu Dexi has taught Chinese for several decades and is approaching retirement. The most thought-provoking ones are often those that have been troubled for a long time and are finally difficult to solve. Therefore, it is natural to think how good it would be for a young friend to start solving these problems if he understands it early on! In a language class, in the end what language knowledge is not taught to students? ...