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给深圳初二家长提个醒,八下物理难度不低,希望大家防患于未然.

  • 2026-05-20 20:15:55
给深圳初二家长提个醒,八下物理难度不低,希望大家防患于未然.

今天跟深圳初二的家长说说,为什么很多孩子到了八下物理成绩会断崖式下跌?

也算给大家提个醒,提前做好准备,防患于未然。

八下的物理不仅难,而且在我们深圳中考物理中,占总分的40%,占比还是比较大的,和九年级的电学一样。所以还是务必要重视起来。

从客观难度上来说,八上物理比较简单。基本靠死记硬背就能拿分;光学和透镜虽然稍微复杂一点,但知识点占比少,核心也是背;密度这块同样是计算题,理解起来很容易;计算也都是一步出结果。

所以学习八上物理的时候,很多听话的孩子只要使劲背、认真算,考试都能拿到不错的分数。

但八下物理完全不一样,难度直接提升了一大截。可以说是跳跃了一个阶。

八上的物理背诵的内容没减少,液体压强应用、流速与压强的关系、大气压强、滑轮杠杆,机械效率这些,都需要记,而且公式的数量至少是八上的两到三倍。

而八下册物理计算题的复杂度彻底变了,八上是一步就能算出来,八下至少要两步,别小看这一步的差距,对于中等及一下的孩子,难度其实翻了不止一倍。

并且八下物理核心是力学,需要深度理解,不是单纯背会就行。纯硬背的话,不仅容易混淆,而且记不住,就算背下来,题目稍微换个说法、换个情境,孩子立马就不会了。

第二个原因,是八下之前的寒假预习时间太短了。八下前的寒假只有二十来天,预习课顶多八到十节,时间少,下的功夫不够、刷题也少,基础没打好,成绩下降也就理所当然了。

第三个原因,孩子的学习方法没跟上。八上物理是学习的过渡期,出题老师怕一开始难度太高打击孩子信心,考的内容相对来说都比较基础简单,很多孩子八上考好了就沾沾自喜,觉得物理很简单,学习物理也不过如此,也就不愿意去探究物理真正的学习方法,不知道该怎么总结、怎么思考,也没把物理和现实生活联系起来,还是用七年级的学习 习惯来学,到了难度提升的八下,自然就跟不上了。

分析完原因,咱们再说说该怎么应对,一定做好下面这几点。

第一,客观难度我们没法改变,只能做到心中有数,重视八下物理,别再用八上的心态敷衍学,认真对待每一个知识点和题型,这是基础。

第二,针对寒假预习时间少的问题,一定要保证高质量学习。不管是在家自学、报线下课还是网课,核心是真的学进去,不是走形式。这里提醒一下,自律性差或者一般的孩子,别报网课和大班课,基本没效果。而且要保证课练结合,上多久的课,课后就要花至少同等的时间做作业、复习,比如上两小时浮力课,课后就要再花两小时巩固,这样才能把知识吃透。

第三,赶紧调整学习方法。如果八上没掌握正确的物理学习方法,八下一定要赶紧补,学会总结题型、梳理思路,多思考物理知识和现实的联系,找到适合自己的学习节奏。这里说的总结题型和方法这是学习理科的通用手段。这也是我教学这么多年,给培优班快速提分的最重要的手段之一。

第四,稳住心态,方法虽然是那个方法,但是不同的孩子实施起来效果都不一样,即使学的好的孩子,在学习八下物理的时候,成绩也会下降,这都是正常现象,不必过于担心。

最后说一点点,八年级下册物理是初中物理的分水岭,当然孩子们的成绩或多或少都会下降,但提前做好准备、按照上面我说的方法,才能稳稳跟上,希望深圳初二的家长们能替孩子们重视起来。

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  1. CONNECT:[ UseTime:0.000357s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000542s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000277s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000285s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000519s ]
  6. SELECT * FROM `set` [ RunTime:0.000242s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000572s ]
  8. SELECT * FROM `article` WHERE `id` = 499618 LIMIT 1 [ RunTime:0.000391s ]
  9. UPDATE `article` SET `lasttime` = 1779913459 WHERE `id` = 499618 [ RunTime:0.001492s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000267s ]
  11. SELECT * FROM `article` WHERE `id` < 499618 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000447s ]
  12. SELECT * FROM `article` WHERE `id` > 499618 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000400s ]
  13. SELECT * FROM `article` WHERE `id` < 499618 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004913s ]
  14. SELECT * FROM `article` WHERE `id` < 499618 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001298s ]
  15. SELECT * FROM `article` WHERE `id` < 499618 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001051s ]
0.082044s