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幼儿园科学之《树叶变黄的秘密》 PPT可编辑

  • 2026-08-07 22:55:57
幼儿园科学之《树叶变黄的秘密》 PPT可编辑

幼儿园科学之《树叶变黄的秘密》 PPT可编辑

幼儿园科学之《树叶变黄的秘密》 PPT 19页 动态可编辑 带教案 逐字稿 说课稿
1.认知目标：知道树叶变黄是因为天气变冷导致叶绿素分解，原本被遮住的黄色素显露出来；初步了解枫叶变红与花青素有关。
2.能力目标：能借助实验验证叶子中隐藏的颜色；能运用拼贴等方式利用落叶进行创意造型。
3.情感目标：萌发对植物变色现象的好奇心与探究欲，体验发现自然秘密的乐趣，感受秋天色彩的丰富与美好。#幼儿园 #幼儿园老师 #幼儿园课件 #幼儿园PPT #树叶变黄了 #树叶变黄的秘密

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  1. CONNECT:[ UseTime:0.000736s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001160s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000345s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000280s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000704s ]
  6. SELECT * FROM `set` [ RunTime:0.000248s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000829s ]
  8. SELECT * FROM `article` WHERE `id` = 548158 LIMIT 1 [ RunTime:0.000598s ]
  9. UPDATE `article` SET `lasttime` = 1786170113 WHERE `id` = 548158 [ RunTime:0.003720s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000314s ]
  11. SELECT * FROM `article` WHERE `id` < 548158 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000541s ]
  12. SELECT * FROM `article` WHERE `id` > 548158 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000946s ]
  13. SELECT * FROM `article` WHERE `id` < 548158 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000945s ]
  14. SELECT * FROM `article` WHERE `id` < 548158 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001195s ]
  15. SELECT * FROM `article` WHERE `id` < 548158 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008915s ]
0.091633s