好笑的英语对话？？

in ancient china, people think water will not run out and people won't worry that one day they won't have anything to drink. however, it's wrong.
nowadays, lots of water is polluted by human. less and less water can be provided to drink. some people who drunk the polluted water unconsciously in the long time get cancer and finally, they died earlier than other people. therefore, if we save pure water ,our health can be protected. besides, it's also for our generation. if we don't save water and pollute it all the time, our generation will be nothing to drink and die out.
above all, we should save water not only for our health but for our generation.
字数有一百零一点点,不知不觉就超出了,自己删吧