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根据2014年中考试题的方向,以及2015年中考试题改革,学生应该深入的研究教材,通过教材的内容、典型例题,学会知识的变通,现针对中考的复习策略,从教材本身入手,进行典型题的变式训练,让学生学会融会贯通.一、基本型如图1,因为DE∥BC,△ADE∽△ABC,所以AD/AB=DE/BC=AE/AC
According to the orientation of mid-term exam questions in 2014 and the reform of mid-term exam questions in 2015, students should study textbooks in-depth, through the content of textbooks, typical examples, and learn the knowledge of work-arounds. Now, according to the reviewing strategies of senior high school entrance exams, Variant training, so that students learn to get through. First, the basic type shown in Figure 1, because DE ∥ BC, △ ADE ∽ △ ABC, so AD / AB = DE / BC = AE / AC