作文地带提纲：
1：我们为什么要节约用水;
2:如果没有谁将发生们么;
3:我们怎么节约用水;
4；我们用水做什么;
Water
Water is very important for living things. Without water there can be no life on earth. All animals and plants need water. Man also needs water.
Water is found atmosteverywhere. Even in the driest part of the world there is some water in the air.
As we all have found out, water may be a solid, or a liquid or a gas.When it isa solid, it may be as hard as brick, When itis a liquid, you can pour it out of a container. When it is a gas, you cannot see or feel it.
Although about 70 percent of the earth's surface is covered with water,there are many places in the world still running out of water. So we should make good use of water on earth.
范文二：
Water and Life
1. 随着工业化（industrialization）的推进，地球上的淡水（fresh water）越来越少。
2. 生命没水就要消亡（disappear），因此人类要珍惜（treasure）淡水。
3. 我们如何节约用水。
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. From Joozone.com.
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!