请根据下列提示用英语制作海报，呼吁人们节约用水。
1、水是生命之源，无水便无生命；
2、现代社会对水的需求越来越大；
3、许多地方缺水，大量的水被污染；
4、许多人浪费水；
5、采取措施，与污染及浪费水的行为作斗争。
注意：词数：60左右。
Saving water means saving ourselves!
Water is the basic source of life. There would be no life without water.
More and more water is needed in the modern society.
Many places are short of water; many rivers and lakes are polluted. What"s worse, many people are wasting water.
In order to protect water, let"s do something to fight against all kinds of pollution and waste of water.
