《一只美洲虎》在对比中展示由竞争激发的生命活力:当美洲豹这强劲的对手投进虎园后,原先只是“躺在装有空调的虎房里吃了睡,睡了吃”的美洲虎“再没有回过虎房”,威风凛凛,“不是在山顶长啸,就是冲下山来,在草地上游荡”;原先它“最多陪‘外来女友’……到阳光下站一站”,后来竟结出爱情之果——“让巴拉圭的一只雌虎下了一只小虎崽”。于是 “A jaguar” shows the vitality stimulated by competition in the comparison: After the strong opponent of Jaguar was put into the tiger park, he was just “sleeping in the air-conditioned tiger house and sleeping.” The jaguar “hadn’t ever looked back at the tiger house” and was majestic. “It wasn’t at the top of the mountain, it was rushing down the hill and wandering on the grass.” It used to be “up to accompany” an exotic girlfriend’s ... to the station under the sun. “” Later, it actually bears the fruit of love - “Let a female tiger in Paraguay have a small tiger.” then