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导入是课堂教学的首要步骤,是课堂教学的主要环节,也是新授课成功的重要因素。科学有效的导入,必须善于抓住学生的兴奋点。
Import is the first step in classroom teaching, is the main part of classroom teaching, but also an important factor in the success of new lectures. Scientific and effective import, must be good at grasping the excitement of students.