3-1-5-2-4
根据文章第一段第一行:He wanted to drink some water from the river,but he slipped into it.(他想喝点河里的水,但他不小心掉进了河里。)可知第二张图的顺序为1。
根据文章第一段3~4行:The ant climbed on to the leaf. The wind blew the leaf to the bank.(蚂蚁爬上了树叶。 风把树叶吹到岸上。)可知第四张图的顺序为2。
根据文章第一段4~5行:The ant was safe. “Thank you , Miss Dove. I hope I can do something for you someday,”said the ant.(蚂蚁安全了。 “谢谢你,鸽子小姐。 我希望有一天我能为你做点什么。”蚂蚁说。)可知第一张图的顺序为3。
根据文章第二段1~2行:The ant saw this.He ran quickly up the man's leg.(蚂蚁看到了。 他飞快地顺着那人的腿跑过去。)可知第五张图的顺序为4。
根据文章第二段2~3行:“Ouch !”The man felt a sharp pain and dropped his gun.The dove flew away. The man picked up his gun and left.(“哎哟!”那人感到一阵剧痛,丢下了枪。 鸽子飞走了。)可知第三张图的顺序为5.
故答案为:3-1-5-2-4