随着信息技术的进步,传统的教学方法正逐渐被打破,传授知识的手段正在发生根本性的变化。从投影仪、幻灯机进课堂,到录音机、语音实验室在语言教学中的应用,现在发展到网络化的多媒体教学,多媒体作为一种教学手段已越来越多地被运用于教学实践中。不可否认采用影视等多媒体技术,讲授形象生动,如原子、分子结构,生物细胞,基因等微观层面,宇宙、大洋、原子弹爆炸等 With advances in information technology, traditional teaching methods are gradually being broken down and the means of imparting knowledge are undergoing fundamental changes. From projectors, slide projector into the classroom, to tape recorders, voice lab in language teaching, now developed into a network of multimedia teaching, multimedia as a teaching tool has been more and more used in teaching practice. It is undeniable that multimedia technologies such as video and television are used to teach vivid images such as atomic, molecular structure, biological cells, genes and other micro-level, cosmic, oceanic, atomic bombings, etc.