在中考前第二阶段复习中,笔者必定要向学生展示近几年我省中考压轴题,展示中注重题型归类、难点何在和解题思路的生成.2011年陕西省的压轴题引起了我和学生的特别注意,在课堂讨论中用常规思路遭遇了三次函数最值陷困境,调整思路应用新三角形面积公式则柳暗花明.现与大家分享如下.一、试题呈现(2011年陕西省中考数学第25题)如图1,在矩形 In the second stage before the exam in the review, the author must show students in recent years in our province Fushu Ya title, focus on the type of display in the show, the difficulty and problem-solving ideas generation .2001 Shaanxi Province Finale caused Special attention to me and the students, in the classroom discussion encountered with the conventional thinking of the most subsided cubic function, adjusting the idea of ​​using the new triangle area formula is illusory. Now share with you as follows. First, the test questions (2011 Shaanxi Province Examination Math 25) as shown in Figure 1, in the rectangle