一、教学目标(略)　　二、教具准备　　幻灯机一台(自制幻灯台)，复读机一台、小黑板、自制漫画图片三幅。　　三、教学设计特点　　这种优化教学的前提，是在学生对全课进行预习、自学，教师利用自习对学生先进行导 引，学生自己归纳、总结基础上使用的。　　本优化设计着眼于 First, the teaching objectives (slightly) Second, teaching aids preparation A slide projector (self-made slides), a repeater, a small blackboard, homemade comic pictures three. Third, the characteristics of teaching design The premise of this optimization of teaching is to prepare students for the whole class, self-study, teachers use the self-study to guide the students first, the students themselves to sum up the basis of use. This optimization design focuses on