当前时间: 2026-08-07 06:16:24
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2026中考试题(八)福建卷前9题常规题,第10题数形结合初高衔接二次函数题。二次函数另外一个交点的横坐标2n处于3和5之间。第16题比较新颖的跨学科融合的一元一次方程。这里巧妙使用水的浮力列方程,计算比较简单.第20题作垂直平分线.现在流行这样的尺规作图题,先逆向推理,再尺规作图。第22题本质是一个等腰梯形里面有一个正方形.完美的轴对称,EE'是梯形中位线.第(2)问等腰直角三角形和三线合一搞定,口算。第23题项目式学习题,是全卷最难的一题。需要足够的耐心去看懂题目的意思。关键是找到整数部分.只要能写出m和n,学生就理解了这道题。问题1和问题2照葫芦画瓢,问题2要分类讨论.这样的代数推理题一直是学生的薄弱之处。这里是一个减法,要通过-1+1进行转化成整数部分+小数部分。最难的地方在这里。第24题第(3)问本质是两个等边手拉手加一个平行四边形.可以忽略圆的背景.设两个参数,不需要辅助线,利用全等和相似就能做出答案。第25题第(2)问直觉上肯定是这样的,但是要严谨推理可能不知道怎么下手了。这一问应该是全卷最出彩的地方。第3问本质是二次函数和圆的轴对称,利用两点间距离公式就可以做出来。
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