紧扣材料层层联想──供料作文课堂指导四川重庆壁山中学王章伦教师首先在黑板上板书这样一则材料：“据某报报道：目前北京、上海、苏州等城市养狗总数均已不下１０万条，１９９２年末全国养狗超过１亿条。河南的一个地区，生猪存栏９０万头，而存养活狗却超出了１００万... Closely related to the material layer--Leading materials and writing classroom guidance: Wang Jielun, a teacher at Sichuan Bishan Middle School in Sichuan Province, first wrote a book on the blackboard: "According to a report, the total number of dogs in cities such as Beijing, Shanghai, and Suzhou is now no less than 100,000 articles, more than 100 million dogs were raised in the country at the end of 1992. In an area of ​​Henan, there were 900,000 live pigs on hand, while surviving dogs surpassed 1 million...