本节课内容选自人教版义务课程标准实验教科书《生物学》八年级下册第七单元第一章第四节“鸟的生殖和发育”。■课堂实录■师:同学们,你们听说过世界上最伟大的发明家爱迪生小时候孵鸡卵的故事吗?哪位同学能为大家介绍一下。(生兴高采烈地争先举手为大家讲述。)师:听了爱迪生 The content of this lesson is selected from the PEP curriculum curriculum experimental textbook “Biology” eighth grade book seventh unit first chapter fourth section “bird reproduction and development.” ■ Classroom Record ■ Teacher: Students, have you heard of the story of Edison, the world’s greatest inventor, hatching chicken eggs as a child? Which classmate can tell you about it? (Early and excitedly rushing to raise your hand to tell everyone.) Teacher: Hear Edison.