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【数学】2025 年七中八年级期末试卷分析

  • 2026-06-17 02:15:50
【数学】2025 年七中八年级期末试卷分析
（如需试卷，可文末添加客服二维码领取）
一、题型难度与所属考点
各题目的考点与难度如下：
试卷整体难度适中，试卷考查二次根式、一元二次方程、勾股定理、四边形、统计五大核心内容，题型排布梯度分明。
基础一星题目侧重公式概念识记；
二星中档题占比最多，侧重基础运算与常规题型；
三星难题集中在几何综合与方程综合题，侧重知识点融合，例如填空题第15题，运用了将军饮马基本模型进行线段的转化，从而求出线段和的最小值等，整张试卷难易搭配合理。
·预警线：80分
·优秀线：90分

二、经典题型分析

（一）重难点题

【选择题】

·本题考查平行四边形的性质，角平分线的性质，全等三角形的判定与性质，勾股定理求解三角形，解决本题的关键是熟练使用性质。

【选择压轴题】

【填空压轴题】

·填空压轴题考察了轴对称-最短路线问题、全等三角形的判定与性质、勾股定理以及正方形的性质，熟练掌握轴对称求最短距离的方法是解题的关键。

【解答题】

·本题考察了平行四边形的判定和性质，关键是根据一组对边相等且平行的四边形是平行四边形解答。

【解答压轴题】

·解答压轴题考察了四边形综合题，考查了平行四边形的判定与性质，勾股定理，全等三角形的判定与性质，菱形的性质，熟练掌握平行四边形的判定与性质是解题的关键。

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  1. CONNECT:[ UseTime:0.000430s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000561s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000278s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000273s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000492s ]
  6. SELECT * FROM `set` [ RunTime:0.000202s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000502s ]
  8. SELECT * FROM `article` WHERE `id` = 502216 LIMIT 1 [ RunTime:0.000390s ]
  9. UPDATE `article` SET `lasttime` = 1781688466 WHERE `id` = 502216 [ RunTime:0.019092s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000333s ]
  11. SELECT * FROM `article` WHERE `id` < 502216 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000505s ]
  12. SELECT * FROM `article` WHERE `id` > 502216 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000392s ]
  13. SELECT * FROM `article` WHERE `id` < 502216 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000908s ]
  14. SELECT * FROM `article` WHERE `id` < 502216 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.010135s ]
  15. SELECT * FROM `article` WHERE `id` < 502216 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005803s ]
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