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26年成都【成华区】七下期末数学试卷+解析+点评

  • 2026-07-12 10:17:49
26年成都【成华区】七下期末数学试卷+解析+点评

↓点击查看其他各区期末试卷↓

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26年成都【金牛区】七下期末数学试卷+解析+点评

成华区这次考试整体偏难，正常来说A卷是比较简单的，不会出现让人特别纠结的题目，但是成华区这次出现了，还不止一个，B卷难度中上。

试卷

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解析

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点评

6题：用变量惯性思维很容易找不到规律，这个题能发现乘积为定值就比较简单，要结合生活实际。

8题：能记住平时讲的结论就直接秒了，记不住的话可以用特殊点去求，选出正确答案不困难。

18题：前两问属于基础倒角，必须拿满分，第3问需要分类讨论画图，难点就是图不容易考虑全，要想着C点在直线UV下方的情况（还需要注意初中阶段的多边形默认是凸多边形，所以不用考虑H点在直线UV上方的情况）。

22题：高次型知二推二，需要连续推两次，很考验计算能力以及细节的把控，要注意ab异号。

23题：将军饮马中的角度问题，反推等边比较有难度，但是课上讲过原题（仅数据不一样）。

25题：难度大，三元完全平方公式的应用，中间还要提一次公因式abc，难度大，全对的同学很不错。

26题：难度不大，第一二问送分，第三问接着第二问思路构造手拉手就可以。

总结：

本次期末成华区统考难度偏大，实验班125-130，卓越班135+

初一创新思维团队

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  140. /yingpanguazai/ssd/ssd1/www/www.sjds.net/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000526s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000871s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000353s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000270s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000495s ]
  6. SELECT * FROM `set` [ RunTime:0.000231s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000661s ]
  8. SELECT * FROM `article` WHERE `id` = 506939 LIMIT 1 [ RunTime:0.004284s ]
  9. UPDATE `article` SET `lasttime` = 1784071128 WHERE `id` = 506939 [ RunTime:0.004283s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000384s ]
  11. SELECT * FROM `article` WHERE `id` < 506939 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000646s ]
  12. SELECT * FROM `article` WHERE `id` > 506939 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002528s ]
  13. SELECT * FROM `article` WHERE `id` < 506939 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.009800s ]
  14. SELECT * FROM `article` WHERE `id` < 506939 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003492s ]
  15. SELECT * FROM `article` WHERE `id` < 506939 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.031570s ]
0.130623s