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八上地理地形课件ppt教案

  • 2026-09-21 04:56:31

八上地理地形课件ppt教案

八年级上册地理地形总览备课，学生最容易把山脉、高原、盆地、平原背成散点。可以先用“西高东低，三级阶梯”开头，再顺着河流、降水、地形区往下讲，这样学生更容易建立整课框架。
#八上地理PPT #地形课件 #地形总览 #中国地形 #三级阶梯 #西高东低 #地理备课PPT #课堂主线 #初中地理PPT

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  1. CONNECT:[ UseTime:0.000375s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000618s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000313s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000344s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000565s ]
  6. SELECT * FROM `set` [ RunTime:0.000277s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000668s ]
  8. SELECT * FROM `article` WHERE `id` = 529380 LIMIT 1 [ RunTime:0.000331s ]
  9. UPDATE `article` SET `lasttime` = 1789993078 WHERE `id` = 529380 [ RunTime:0.001000s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000294s ]
  11. SELECT * FROM `article` WHERE `id` < 529380 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000396s ]
  12. SELECT * FROM `article` WHERE `id` > 529380 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000330s ]
  13. SELECT * FROM `article` WHERE `id` < 529380 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000529s ]
  14. SELECT * FROM `article` WHERE `id` < 529380 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000784s ]
  15. SELECT * FROM `article` WHERE `id` < 529380 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000639s ]
0.091506s