世界上第一位宇航员尤里·加加林乘坐火箭飞到太空,观赏到地球全貌时说:“我们给地球起错了名字,她应该叫‘水球’,水色星球!”是啊,当初的地球多么美丽啊!郁郁葱葱的森林,一望无际蔚蓝的大海与天空,清澈见底的湖泊、溪流,轻吹悦耳的蝉鸣,数不胜数的生物……可现在的地球还是色彩斑斓的地球吗?现在地球上可使用的淡水资源占全部水资源的0.235%。这让人震惊的数字还在逐年减少。世界上许多干旱地区,好几个月不下一滴雨。想到这里,你还会 When Yuri Gagarin, the world’s first astronaut, rocket into space and watch the whole earth, he said: "We gave the wrong name to the earth. She should be called ’Water Polo’, Aqua! ’ The beauty of the original Earth! Lush forests, endless blue sea and sky, crystal clear lakes, streams, soft light cicadas, countless creatures ... Can the earth be still the colorful earth? Freshwater resources now available on Earth account for 0.235% of total water resources. This alarming figure is still decreasing year by year. In many arid regions of the world, there is no rain for months. Think of it, you will