water and life
as humanwe should know it is so important that the water for us.about 70% composition of a person's body is water.and we can leave off food to live for long time(at least 7 days) but not more than 72 hours we will die if we leave the water.

the reality now days is the resources of water lacked day by day .this require us must save in useing water.how to do it? in public bathroomwe shouldn't keep the clean water running without stop in familywe should save water toothe water after washing fruit and vegetables can used in cleanning floor.and the last time of water by washing face also can be used in wash toiletand so on.....

如何节约水的英文作文

 water is important in our life. as humans we are water and oxygen based organisms as are many organisms on earth. without water we will dehydrate and die. 

the earth's crust makes up less than 1% of the earth and all the oceans on the planet are in the earth's crust. therefore water makes up less than 1% of the earth. 'one drop of water is one drop of life.' the human body is something like 70% water. we heavily reply on water to survive. 

 we need to take care of water. as the progress of our society is ongoing more and more pollutants have been released to the water resources such as rivers and oceans. a drop of water is a life. as human being we should take good care of our water; we should save water!