生命起源于海洋,海洋是生命的摇篮。从海洋中出现最原始的生命到现在已有40多亿年的历史了。从最初的单细胞生物到地球上现存的最长、最重的庞然大物蓝鲸,几十亿年的生命演化创造出了丰富多彩的海洋生物。而海洋动物是大自然赋予人类的宝贵财富,我们应该好好地保护它们。小朋友们,现在就让我们一起去海洋世界看看吧! Life originated in the ocean, the ocean is the cradle of life. More than four billion years of history have emerged from the most original life in the oceans. From the first single-celled creatures to the blue-whale longest and heaviest extant on Earth, billions of years of life have evolved to create colorful marine life. The marine animals are the precious wealth that nature has endowed humankind, and we should protect them well. Children, let us now go to the marine world to see it!