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教材问答丨教科版小学科学五下1.5《当环境改变了》教材问题解答

  • 2026-03-25 23:28:10
教材问答丨教科版小学科学五下1.5《当环境改变了》教材问题解答

教科版科学六下教材问答

——小学科学网——

五 .P12：1.当环境发生改变时。青蛙会做出怎样的反应，青蛙的这种行为是为了适应哪些环境条件的改变？

答：秋末天气变冷时，青蛙蛰伏在水底或洞穴之中冬眠，翌年春季天气变暖时再回到水中繁殖。这些行为是为了适应气候、温度的改变。

 2.当环境发生改变时，丹顶鹤会做出怎样的反应？丹顶鹤的这种行为是为了适应哪些环境条件的改变?

答：每年春季，丹项鹤会离开越冬的地方迁往东北的繁殖地。人秋后，因为气候、日照及食物等因素的变化，丹顶鹤又要从东北的繁殖地迁飞到温暖的南方越冬。这些行为是为了适应气候、温度和食物的改变。

 3.你还知道动物适应环境变化的哪些行为？

答：动物换毛、大雁南飞、东非动物大迁徙等。

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  1. CONNECT:[ UseTime:0.000407s ] mysql:host=127.0.0.1;port=3306;dbname=c_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000582s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000327s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000267s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000490s ]
  6. SELECT * FROM `set` [ RunTime:0.000193s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000569s ]
  8. SELECT * FROM `article` WHERE `id` = 461025 LIMIT 1 [ RunTime:0.001730s ]
  9. UPDATE `article` SET `lasttime` = 1775437520 WHERE `id` = 461025 [ RunTime:0.009434s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000273s ]
  11. SELECT * FROM `article` WHERE `id` < 461025 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000633s ]
  12. SELECT * FROM `article` WHERE `id` > 461025 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001318s ]
  13. SELECT * FROM `article` WHERE `id` < 461025 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004306s ]
  14. SELECT * FROM `article` WHERE `id` < 461025 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.013919s ]
  15. SELECT * FROM `article` WHERE `id` < 461025 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008641s ]
0.112289s