While the main disadvantages disturbing teaching effect were overabundant and swift data resulting to unable to take notes, difficult to be digest due to excessive information, more attention to the courseware rather than teachers ' lecture. 影响教学效果的主要不足为资料过多过快,无暇抄笔记、信息量过大,难以消化、注意力转移到课件,无暇听老师讲课。