伴随着多媒体的广泛运用及网络知识的普及,越来越多的中学教师把信息技术用到了自己的课堂教学中。课件的制作与使用,使广大教师体验到了“资源共享”及“教育现代化”的便利,“课件网”“21世纪网”“教师网”等成为教师备课教学的好帮手。利用多媒体技术制作的课件具有省时高效的特点,它的大容量以及丰富的图像、动画、影片等,都是传 With the widespread use of multimedia and the popularization of network knowledge, more and more middle school teachers use information technology in their own classroom teaching. Courseware production and use of the majority of teachers to experience the “resource sharing ” and “education modernization ” convenience, “courseware network ” “21st Century Network ” "teacher network Teaching a good helper. Courseware made using multimedia technology has the characteristics of time-saving and efficient, its large capacity and rich images, animations, movies, etc., are passed