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(试卷分析)云南省师大附中4月月考数学

  • 2026-04-24 17:02:41
(试卷分析)云南省师大附中4月月考数学
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做题感受：试卷时长：1小时45分钟左右，填空题最后一题做了一半蒙了一个答案上去，解答题18题最后一问+19题最后一问没写完。一方面是不会做。难度较大。下面是小编对整张试卷的分析。有不足的地方欢迎同行指出：（单选）前4题中规中矩（第3题：能看出弦长等于直径这个题就很好做了）；第5题：考查二项分布X~B（n,p），其中E（X）=np（反映随机变量X的取值平均水平）该题难度系数不大。第6题考查正弦定理求边；和差公式求非特殊角(扇形的面积公式）；第7题看上去难度较大（切化弦），实则直接求导，判断单调性求最值问题。第8题（通法即可：表示面积+联立，等量关系，化简即可） （多选）第9题属于常规的三角函数题型（比以往直接给出解析式判断其性质：这个题相对较灵活），第10题（双曲线的常规题型：难度中等，分析的问题较多），11题立体几何的动态问题（可以看成两个平行的平面，有一个点在另一个面上移动的问题）
（填空题）12题给定区间上求最值的问题；13题考查方差公式的等价转化问题（需要对求和公式理解透彻：属于基础问题）。14题属于难题（用基本不等式+三角函数的换算求最小值）；（（解答题）15题考查数列问题：难点在于：选择谁作为条件，谁又是结论（需要满足为真命题），其次就是第二问的通项公式是一个分段函数。16题：中等题型（这个图形和高考的图形很接近），17题：一个题把所有的曲线类型的考查了（除抛物线）；第一问基础题型（考查学生对曲线的方程的认识）；第二问证明角平分线的问题：（方法：利用到角公式或者直接证明角相等），18题：前面的问题不难。难点在于第三问（需要用到琴声不等式） 19题；第一问虽然只比较大小。不写过程。但如果需要具体分析还是有一点小难度（这样很多学生就会直接放弃整个题），实际上第二问难度较低，第三问也可以写出一部分。（第三问考场超几何：小编没有做出来）
第八题：
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2026年江阴市初三数学一模试卷(含答案)

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  138. /yingpanguazai/ssd/ssd1/www/www.sjds.net/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
  139. /yingpanguazai/ssd/ssd1/www/www.sjds.net/runtime/temp/5febe16c9207553ef9b4c4406f7af920.php ( 12.06 KB )
  140. /yingpanguazai/ssd/ssd1/www/www.sjds.net/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000618s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000765s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000339s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000254s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000482s ]
  6. SELECT * FROM `set` [ RunTime:0.000209s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000502s ]
  8. SELECT * FROM `article` WHERE `id` = 481846 LIMIT 1 [ RunTime:0.000385s ]
  9. UPDATE `article` SET `lasttime` = 1777038326 WHERE `id` = 481846 [ RunTime:0.009672s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000340s ]
  11. SELECT * FROM `article` WHERE `id` < 481846 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000529s ]
  12. SELECT * FROM `article` WHERE `id` > 481846 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000376s ]
  13. SELECT * FROM `article` WHERE `id` < 481846 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000591s ]
  14. SELECT * FROM `article` WHERE `id` < 481846 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.017786s ]
  15. SELECT * FROM `article` WHERE `id` < 481846 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002896s ]
0.108736s