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2019年深圳中考真题化学试卷

  • 2026-04-24 17:02:37
2019年深圳中考真题化学试卷

2019年深圳中考真题化学试卷

初三  |  化学  |  中考真题  |  下学期  | 

考察知识点

核心实验技能与方案设计，包括物理化学变化判断、实验操作规范、方案合理性评价
核心化学反应原理，涵盖催化剂作用机理、氧化还原反应、微观反应过程理解
重点化学用语表达，包括化学式书写、离子符号表示、分子式计算
重点溶液与溶解度，重点掌握溶解度曲线分析、数据处理能力
重点原子结构与元素周期表，理解原子构成、元素性质规律
基础化学与生活应用，了解安全标识、环保知识、生产生活中的化学现象
基础金属活动性顺序，掌握金属与酸、盐的反应规律

中考权重

选择题25%
实验探究题35%
计算分析题25%
综合应用题15%

重点题型

溶解度曲线综合分析难

结合图像数据分析溶解度变化规律，考查数据处理和综合应用能力

实验方案设计评价难

判断实验方案合理性，要求具备扎实的实验基础和逻辑分析能力

催化剂反应机理中

理解催化剂在化学反应中的作用，考查微观反应过程分析

物理化学变化判断中

综合判断各种变化类型，需要准确掌握变化本质特征

化学式离子符号易

基础化学用语表达，考查化学符号规范书写

安全标识识别易

化学与生活联系，了解常见化学安全标识含义

命题趋势

① 从「知识立意：从「知识立意」向「能力立意」转变，更注重科学素养培养

② 强化实验导向：强化实验导向，重视实验操作技能和方案设计能力考查

③ 增加图表数据：增加图表数据分析题，提升学生信息处理和数据分析能力

④ 突出化学与生：突出化学与生产生活联系，体现学科实用价值

⑤ 推进STEM：推进STEM教育融合，注重跨学科知识整合应用

备考策略

① 加强实验基础：加强实验基础训练，重点练习实验操作规范和方案设计思路
② 提升图像数据：提升图像数据分析能力，多练习溶解度曲线、反应进程图等题型
③ 注重化学用语：注重化学用语规范表达，确保化学式、离子符号书写准确
④ 关注化学与生：关注化学与生活联系，积累安全环保、生产应用等实际案例
⑤ 培养综合分析：培养综合分析思维，练习多知识点交叉融合的复杂题目

试卷预览

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(试卷分析)云南省师大附中4月月考数学

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  1. CONNECT:[ UseTime:0.000612s ] mysql:host=127.0.0.1;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000848s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000435s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000314s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000570s ]
  6. SELECT * FROM `set` [ RunTime:0.000220s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000571s ]
  8. SELECT * FROM `article` WHERE `id` = 481847 LIMIT 1 [ RunTime:0.000432s ]
  9. UPDATE `article` SET `lasttime` = 1777037007 WHERE `id` = 481847 [ RunTime:0.005152s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000274s ]
  11. SELECT * FROM `article` WHERE `id` < 481847 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000440s ]
  12. SELECT * FROM `article` WHERE `id` > 481847 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000430s ]
  13. SELECT * FROM `article` WHERE `id` < 481847 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000661s ]
  14. SELECT * FROM `article` WHERE `id` < 481847 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.010372s ]
  15. SELECT * FROM `article` WHERE `id` < 481847 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006878s ]
0.104708s