新课的导入是引导学生奔向学习目标的指南,是科学诱导积极启发学生主动学习新知的必不可少的重要环节。生动的导言,能使学生明确学习目的、学习内容,激发学习兴趣,迅速地吸引学生的注意力,是培养学生渴望求知心态的一种教学艺术。 The introduction of the new lesson is a guide to guide students toward their learning goals and is an indispensable and important part of science to actively inspire students to take the initiative to learn new things. The vivid introduction enables students to clarify the purpose of learning, learning content, stimulate interest in learning and quickly attract the attention of students. It is a teaching art that fosters students’ desire to know their minds.