碧波荡漾绿水盈盈的湖泊酷似一颗颗陆上明珠,撒落在大地之上,镶嵌在山谷、盆地之中。它们妆点了地球上的风光,调节了区域气候,既是大河蓄洪防涝的天然水库,行舟楫之便的水上通道;又是人类觅取净水和鲜美食物的天然仓库,旅游休养的胜地。可是地球上的湖泊却在缩小、减少,乃至消失。 The rippling green lakes resemble a land of pearl, sprinkled on the earth, embedded in the valleys, basins. They make up the scenery on the earth and regulate the regional climate. They not only serve as natural reservoirs for waterlogging and flood control in the rivers, but also serve as waterways for boats and ploons. They are natural warehouses and tourist resorts for people to seek clean water and tasty food. But the earth’s lakes are shrinking, diminishing, and even disappearing.