一、采用新颖多变的形式导入新课,吸引学生入境课堂教学中导课一环,对整堂课的教学效果有极大的影响。在备课过程中,教师要抓住学生的心理特点,根据教学目的、任务的要求,创设出具有启发性、科学性、趣味性的情境,通过提问设疑、悬念设置、生物趣闻、电教媒体、日常生活现象等, First, the introduction of new and innovative forms of new classes, to attract students into the classroom instruction in the classroom teaching, the teaching effect of the entire class has a great impact. In preparation for the lesson, teachers should seize the psychological characteristics of students and create inspiring, scientific, and interesting situations based on the purpose of teaching and tasks, through questioning, suspicious settings, bio-fun stories, audio-visual media, Daily life phenomena,