As we all know,there is only a little water which people can use and it is becoming less and less.water is very important to all of us so we should try our best to save it.humans can't live without water because water can provide us with many things in our daily lives .For example,we drink it every day.we use it to cook and wash things.We human beings will be in danger if there's no water in the world .So we should do some things to save water.Firstly,we can turn off the tap in time.secondly,we can reuse the water after we finish washing.we can also use the rain water to do some washing.In that way,we can have fresh water for years and years.