为了保护地球有限的资源，我们应该采取什么措施呢?请根据下面的提示写一篇约80词的短文，短文开头已经给出。

　　提示词;1.save water, the source of life , protect drinking water, stop polluting, make full use of it

　　2.save electricity, crucial, turn off, other electric machines

　　3. save forests, useful ,stop cutting down

　　4.recycle useful rubbish, save resources

来源:可可英语 http://www.kekenet.com/chuzhong/201301/218928.shtml