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平行的应用一教案

  • 2026-05-13 18:31:11
平行的应用一教案

这节课起到对上课的巩固和延伸的作用。

先让学生独立完成了两道和上节课一样题型的题，然后又做了一道没有给出交线的判定与性质综合应用的题，一道不是几何体的题。因为有两道三种解法的题，学生整理好共用了一节半时间。每道题都有学生板书，中间还是有些细节不到位，或者思路对，定理条件不全的情况。这是高考解答题要考的，所以这几天陆续练习时要让学生多板书。

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  1. CONNECT:[ UseTime:0.000685s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000756s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000293s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000309s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000476s ]
  6. SELECT * FROM `set` [ RunTime:0.000196s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000553s ]
  8. SELECT * FROM `article` WHERE `id` = 494945 LIMIT 1 [ RunTime:0.000409s ]
  9. UPDATE `article` SET `lasttime` = 1779031589 WHERE `id` = 494945 [ RunTime:0.001506s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000278s ]
  11. SELECT * FROM `article` WHERE `id` < 494945 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000580s ]
  12. SELECT * FROM `article` WHERE `id` > 494945 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000371s ]
  13. SELECT * FROM `article` WHERE `id` < 494945 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000666s ]
  14. SELECT * FROM `article` WHERE `id` < 494945 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000780s ]
  15. SELECT * FROM `article` WHERE `id` < 494945 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002328s ]
0.081178s