1. To cherish the enviroment is to love ourselves.
2.Water is the source of ourlives
3.I make an urgent appeal that measures should be taken to cope with the situation
4.Our government is doing its best to take measures to fight against pollution.
5.We are sure that we''ll win the battle.
6.It's high time that we should protect our enviroment from being polluted.
7. Keep our mountains green,the wate clean,and the sky blue.
8.However,natural resources are not inexhaustible.some reserves are already on the brink of exhaustion.
9.If we do something with no thought for the furture . The later generation would be in danger.
10.Our earth's days are numbered without urgent help.
11（Sth.）are bound to generate severe consequences if we keep turning a blink eye to them.