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【课例分享】现在完成时课件

  • 2026-09-28 13:26:38
【课例分享】现在完成时课件
找到了旧教材的现在完成时课件，讲得还比较详细（三个部分:基本用法；have gone to,have been to；以及延续性动词和非延续性动词的相互转换，有对应的练习题，可以作为新教材的补充，可单独讲解。
部分内容如下:


新教材｜八下U8教材解读：“既以为人，己愈有”—— 读懂“帮助”的真正意义

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电气施工识图基础培训课件

基本 文件 流程 错误 SQL 调试
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  2. 运行时间 : 0.073834s [ 吞吐率：13.54req/s ] 内存消耗：4,369.55kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=2af7b4295fb5b40afa08f41b65670632
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  1. CONNECT:[ UseTime:0.000688s ] mysql:host=172.18.0.4;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000867s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000377s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000372s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000528s ]
  6. SELECT * FROM `set` [ RunTime:0.000289s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000680s ]
  8. SELECT * FROM `article` WHERE `id` = 509000 LIMIT 1 [ RunTime:0.000378s ]
  9. UPDATE `article` SET `lasttime` = 1790641412 WHERE `id` = 509000 [ RunTime:0.001239s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000326s ]
  11. SELECT * FROM `article` WHERE `id` < 509000 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000421s ]
  12. SELECT * FROM `article` WHERE `id` > 509000 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000353s ]
  13. SELECT * FROM `article` WHERE `id` < 509000 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000519s ]
  14. SELECT * FROM `article` WHERE `id` < 509000 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000605s ]
  15. SELECT * FROM `article` WHERE `id` < 509000 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000689s ]
0.086346s