The process of cognition gors through perceptual stage and rational stage. It also applies to studying process. It is our hope that teaching makes students adopt the outlook cognition from perceptual recognition to raional apprehension, and greatly lrap from perceptual thinking to rational thinking.Therefore, it is the major objective in teaching to enhance the student' abstract thinking. The multimedia technology makes content easier, and with its unique advantages, it can clarify the emphasis in teaching. While if the image and imagination in students' mind were merely showed on the screen, their abstract thinking would be restricted and logical thinking would waste away. At present the decreased students' reading competence has become a major concern for reason that textual words are replaced by sound and image, handwriting by keyboard input. The over-application of multimedia technology would worsen the situation.
All in all, the multimedia as an assisting instrument, can not replace the dominant role of teachers and it is part of a complete teaching process. Besides, it is not a mechanic imitation of teaching, rather it integrates the visual, textual demonstract with teachers' experiences to contribute to the programmed, automatic and teaching project so as to enhance the overall improvement of student' listening, speaking, reading, and writing.
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