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情境贯穿 精品课件 | 新人教八下6.1.1无性生殖——国宝的竹梦未来@青禾

  • 2026-03-28 08:19:15
情境贯穿 精品课件 | 新人教八下6.1.1无性生殖——国宝的竹梦未来@青禾
购买打包合辑包括:13个正课课件(情境贯穿)含配套教案、送默写小纸条、知识清单、练习题。
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                    ——情境真实 · 探究驱动 · 应用导向 · 育人融合

                    1. 以国家生态战略切入,立意高远创新采用“大熊猫食物危机—竹子开花死亡—如何快速恢复竹林”这一真实国家议题导入,将生物学知识与生物多样性保护、生态文明建设紧密结合,激发学生社会责任感。

                    2. 紧扣课标,四大素养有机融合精准落实“生命观念、科学思维、探究实践、态度责任”核心素养:

                      • 建立“无性生殖”概念及特点;
                      • 通过观察草履虫、水螅、椒草等案例归纳共性;
                      • 动手尝试扦插/嫁接;
                      • 树立“用科学解决实际问题”的担当意识。
                    3. 案例丰富,贴近生活与生产涵盖动植物多样实例:

                      • 动物:草履虫(分裂)、水螅(出芽);
                      • 植物营养繁殖:椒草(叶)、马铃薯(块茎)、红薯(块根)、落地生根;
                      • 农业应用:月季/葡萄扦插、苹果/柿树嫁接、组织培养等,打通课堂与现实。
                    4. 深度解析三大核心技术,突出实践性

                      • 扦插:详解切口处理(斜下平上)、去叶保活、环境控制,并引用清代《花镜》古训,体现传统智慧与现代科学的统一;
                      • 嫁接:清晰区分接穗/砧木,强调“形成层对齐”关键,结合柿树嫁接黑枣案例说明“早结果、抗逆强”优势;
                      • 拓展技术:简要介绍组织培养、压条等方法,拓宽学生视野。
                    5. 巧妙辨析易错点,强化概念理解通过选择题(如“嫁接后果实类型由接穗决定”)和判断题(如“草履虫子代遗传物质是母体一半”为错误),精准纠偏,夯实基础。

                    6. 结构清晰,资源配套完整从概念→特点→应用→实践,逻辑流畅;建议配合视频演示(课件中标注),并设计移栽、分株等动手任务,支持项目式学习。

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                    4.6.1人体对外界环境的感知(第一课时)
                    4.6.1人体对外界环境的感知(第二课时)
                    4.6.4激素调节
                    4.6.2神经调节(第一课时)
                    4.6.2神经调节(第二课时)

                    4.6.3神经系统支配下的运动

                    4.7.1传染病及其预防
                    4.7.2免疫与免疫规划
                    4.7.3用药与急救
                    4.7.4选择健康的生活方式
                    5.1.1生物与环境的相互作用
                    5.1.2生态系统的结构和功能

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                    1. CONNECT:[ UseTime:0.000546s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
                    2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000897s ]
                    3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000367s ]
                    4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000287s ]
                    5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000608s ]
                    6. SELECT * FROM `set` [ RunTime:0.000231s ]
                    7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000696s ]
                    8. SELECT * FROM `article` WHERE `id` = 477867 LIMIT 1 [ RunTime:0.000465s ]
                    9. UPDATE `article` SET `lasttime` = 1775548665 WHERE `id` = 477867 [ RunTime:0.007315s ]
                    10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.005964s ]
                    11. SELECT * FROM `article` WHERE `id` < 477867 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.004243s ]
                    12. SELECT * FROM `article` WHERE `id` > 477867 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003729s ]
                    13. SELECT * FROM `article` WHERE `id` < 477867 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.006428s ]
                    14. SELECT * FROM `article` WHERE `id` < 477867 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.006317s ]
                    15. SELECT * FROM `article` WHERE `id` < 477867 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001858s ]
                    0.110612s