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【张宇】9月30号完不成强化复习:36讲哪些章节可以先跳过

  • 2026-09-27 23:56:58
【张宇】9月30号完不成强化复习:36讲哪些章节可以先跳过
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9月30号,36讲刚啃到导数应用、后面还挂着积分、多元、级数几大块的同学不在少数。眼看着强化课怎么都赶不完,一多半人开始四处问同一个问题:哪几章可以跳。

真问题从来不是"跳不跳",而是"哪几章可以放心跳、哪几章跳了就丢分"。这条线画清楚,后面这三个月的复习节奏才能真正打开。

而且跳章节这件事,本身有前提。前提是要知道自己现在这个水平里,哪些题对考场分数没贡献,哪些题丢一道就是丢分。多数同学没这个自知,翻着目录凭感觉划——划到最后要么把该练的巧法漏了,要么把没意义的证明题当宝贝啃了一个月。

倒计时的窗口,是拿来精准砍章节、把时间从"哪个都可能考"里抢回来的,不是硬着头皮从头听到尾。

一、先给自己装一个真正精细的进度条

要判断哪一章可以跳,先得有一个真正精细的进度条。

大部分同学学得这么痛苦,是因为根本没有一个进度条:不知道自己这么多天到底学了多少,还有多少是没学的。"每天做10题"不是进度条,因为做10题不等于掌握了考点。

知能行做的第一件事,就是把考研数学的全部内容拆成了600个考点。听起来很多,但假如就600个,弄懂了就没有新的了,畏惧感一下子就轻了。

拆完之后,知能行给每个考点都配了一个从等级1到等级5的进度条,再叠上综测和AI猜两套机制。综测每天自动出新题反复检验薄弱点;AI猜提前判断你对1000、880、660每道题的掌握情况,把大概率会做的绿题筛出去,只留下橙色打问号的那20%-30%让你重点啃。

跳章节这件事,知能行替你做得比目录划分精细得多。它跳的永远是"对你当前目标和水平而言性价比最低"的题目,而非整个知识模块。等到整体水平上到等级3满,这些暂时跳过的内容还会被系统重新纳入训练计划。

二、对着目录三筛:三类章节可以先跳

冷门这一类,习题册的覆盖天然吃亏——1000和880做到85%,660只有75%。命题组正好钻这个空子:24数一考傅里叶、数二考曲率圆,25数一又摸到泊松。冲高分的把这几分补齐;120以下的直接翻过去。物理应用要单拎出来,25、26两届连着考引力,基础例题必须做。

巧法这一类,张宇讲一个专题基本是通法叠若干巧法,通法跟熟就够,花活延后。等级2到顶、通法把1000A基础篇80%–90%的题稳做对,120以下就够了。

证明题密集的章节,李林27版880光证明题就砍掉了64道,风向明摆着——加强计算、弱化证明。100分以下的中值定理证明整块推到真题阶段;100分以上的把18讲例题旁标注过的证明例题吃透即可。积分等式与积分不等式在18讲里属C档,同样是真题阶段之后再看。

三、这两块最容易被误伤:数列极限和积分

数列极限是高数的第一道抽象门槛,不像函数极限偏计算,更多依赖 ε-N 语言和收敛性质的逻辑推理。抽象的纯 ε-N 证明题可以先放一放;但小题里考概念、定义、极限存在准则的部分,目标120以上是要拿到分的,不能跳。数列递推关系定义的极限已经很多年没在这里出难题了,把压轴题出在这里的可能性反倒非常大,同样不能漏。

积分是被吐槽最多的一整章:概念密集、方法繁杂、综合性强。但积分能跳吗?肯定不能跳。积分在真题中占据举足轻重的分值,跳过核心章节等于自断一臂。正确打开方式是拆细:知能行把它拆成【积分1】打基础练凑微分、换元、分部、拆项及其组合;【积分2】聚焦三角函数、奇偶、对称以及反常积分的敛散;【定积分应用】覆盖变上限积分的性质和几何、物理、经济综合应用。一步步过,比整章硬啃省时得多。

四、跳完之后,剩下的时间怎么用

砍下来的时间分成两块用。

一块留给"必听章节"的落地。一节强化课听完,直接进知能行的AI猜,把这一章1000、880、660里被标成橙色的题挑出来,只做这20%–30%;做完的题进综测再跑一遍。绿题不必碰,橙题不能放。

另一块回头补基础。多数情况下"某章跟不动强化"的卡点不在强化本身,而是基础阶段那个专题的等级2一直没稳。硬啃强化课等于用最贵的窗口练最低性价比的题。正确的顺序是把这一章按下暂停键,把等级2顶到满,1000A基础篇一刷稳到80%–90%,再回来听同一章的强化,速度会明显加快。

到12月冲刺,知能行每天留半小时保持手感即可,主力时间给模拟卷和过去5年的超越卷。

让课少上、题少做,比逼自己把36讲从头拉到尾更能救9月30号这个节点。

知能行AI教练,网站链接:

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  139. /www/wwwroot/www.sjds.net/runtime/temp/022a5b1eae5a9e3c31e54f699d8ae600.php ( 8.05 KB )
  140. /www/wwwroot/www.sjds.net/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000598s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001151s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000418s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000354s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000536s ]
  6. SELECT * FROM `set` [ RunTime:0.000294s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000815s ]
  8. SELECT * FROM `article` WHERE `id` = 516944 LIMIT 1 [ RunTime:0.000374s ]
  9. UPDATE `article` SET `lasttime` = 1790556052 WHERE `id` = 516944 [ RunTime:0.001390s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000362s ]
  11. SELECT * FROM `article` WHERE `id` < 516944 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000426s ]
  12. SELECT * FROM `article` WHERE `id` > 516944 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000519s ]
  13. SELECT * FROM `article` WHERE `id` < 516944 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000571s ]
  14. SELECT * FROM `article` WHERE `id` < 516944 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000727s ]
  15. SELECT * FROM `article` WHERE `id` < 516944 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001341s ]
0.083681s