当前位置:首页>考研真题>【优质试卷】2026新高考地区名校镇海中学高三数学最后一卷(许兴华数学)

【优质试卷】2026新高考地区名校镇海中学高三数学最后一卷(许兴华数学)

  • 2026-05-20 02:36:10
【优质试卷】2026新高考地区名校镇海中学高三数学最后一卷(许兴华数学)
镇海中学五月卫冕卷质量很高,难度适中,没有偏题怪题,小题把常考的类型又顺带着复习了一遍,属于高考考前查漏补缺的绝佳试卷.

第八题双连不等式恒成立问题,分别处理左右两个恒成立的式子就行了,右边那个式子可以借助重要放缩,直接出结果.左边那个恒成立的式子在x≤1时显然,x>1时,参变分离借助重要放缩或求导均可得出结果.本题考察导数恒成立问题,融合参变分离的思想和重要放缩.

第11题,数列新定义,A选项检验一下就行了,对于BCD考察构造,关于等差数列,受A选项的启发,可以构造一系列绝对数列.等比数列,若为绝对数列,可以让|S1|=|S2|看看能否得出公比除-1以外的值.本题比较抽象,特别是后面的构造,非常考验跨越思维,这种题对很多学生而言还是有点难想的.

第14题,随机变量的状态转移,典型的马尔可夫递推寻找后一项与前一项的概率关系就行了,和几个人相互传球类的本质是一样的.

第18题第一问中点弦问题可以借助点差法处理,第二问在抛物线中换一半或者借助隐函数求导先写出抛物线在P点处的切线方程,接着和双曲线联立,由三角形ABC为等边三角形,其边上的高等于根号3/2AB,接着借助弦长公式列出关系式求出t即可.最后一问紧随第二问联立的结果,把三角形AOB的面积,用水平长乘以铅垂高除以2,表示出来,最后对含t的面积表达式变形,根号内外均可借助基本不等式处理,且取等条件一致.本题将抛物线和双曲线结合在一起考察,涉及点差法,切线方程换一半,弦长公式及推广的弦长公式的使用,面积表达式变形,函数思想的运用,求导或变形成可用基本不等式的形式,综合性很强.

第19题将函数图像纳入考察,涉及图像交点,切线,三点共线等问题的处理技巧.可采用设点,设坐标,代换变形等处理策略,最后一问更是将取对数,变形,比值换元,几何直观等导数热点色彩拉满,为数不多的好题,值得玩味.摒弃了对导数的传统考法,是对函数与导数的创新考法,以图像为载体,在抽象中引入几何直观,对代数运算,图形识别均提出了要求,看似简洁的条件,可以蕴藏了很多热点,难点,技巧性拉满,值得好好探究.

【注】转自《锤子数学》公众号。

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  1. CONNECT:[ UseTime:0.000784s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001310s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000627s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000631s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001232s ]
  6. SELECT * FROM `set` [ RunTime:0.000549s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001378s ]
  8. SELECT * FROM `article` WHERE `id` = 494765 LIMIT 1 [ RunTime:0.001826s ]
  9. UPDATE `article` SET `lasttime` = 1779260404 WHERE `id` = 494765 [ RunTime:0.001004s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000626s ]
  11. SELECT * FROM `article` WHERE `id` < 494765 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000872s ]
  12. SELECT * FROM `article` WHERE `id` > 494765 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000955s ]
  13. SELECT * FROM `article` WHERE `id` < 494765 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003700s ]
  14. SELECT * FROM `article` WHERE `id` < 494765 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001545s ]
  15. SELECT * FROM `article` WHERE `id` < 494765 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001333s ]
0.103588s