英语作文 水的作用
汉文：
水对我们的生命起着重要的作用 ,它是生命的源泉，是人类赖以生存和发展的不可缺少的最重要的物质资源之一。人的生命一刻也离不开水，水是人生命需要最主要的物质。
而对人体而言的生理功能是多方面，而体内发生的一切化学反应都是在介质水中进行，没有水，养料不能被吸收；氧气不能运到所需部位；养料和激素也不能到达它的作用部位；废物不能排除，新陈代谢将停止，人将死亡。因此，水对人的生命是最重要的物质。
在现代工业中，没有一个工业部门是不用水的。也没有一项工业不和水直接或间接发生关系。更多的工业是利用水来冷却设备或产品，例如钢铁厂等。水还常常用来作为洗涤剂，如漂洗原料或产品，清洗设备或地面，每个工厂都要利用水的各种作用来维护正常生产，几乎每一个生产环节都有水的参与。
英文：
The water is playing the vital role to our life, it is the life fountainhead, is the humanity is livelihood and one of development essential most important physical resources. A human's life quarter leaves the boiling water, the water is also not the person life needs the most main material. but speaking of the human body the physiological function is various, but in vivo occurs all chemical reaction is carries on the medium water, does not have the water, the nourishment not to be able to absorb; The oxygen cannot transport needs the spot; The nourishment and the hormone cannot arrive at its function spot; The waste cannot remove, metabolism will stop, the human will die. Therefore, Shui Duiren the life is the most important material. in the modern industry, does not have Industry sector not water used. Also does not have an industry not direct or has the relations indirectly with the water. More industries are use the water cooling equipment or the product, for example iron and steel plant and so on. The water also frequently uses for to take the detergent, if rinse raw material either the product, the decontaminatin unit or the ground, each factory must maintain the regular production using water each kind of function, each production link has the water participation nearly.
Water is essential to living things. For instance, if there is no enough water in a human body, a person may feel uncomfortable or get sick easily. To make matters worse, one may die of thirst. Similarly, plants may wither or die for lack of water. It is apparent that all living things need water to keep alive.
Judging from the importance of water, we should know how to conserve water. The first thing is to stop polluting water because what we really need is clean water. At the same time, be sure to turn off the faucet immediately after using water. And we should make efficient use of water to avoid wasting it. One way is to recycle as much water as possible. To sum up, we should economize on water so as to maintain the abundance of water, which is an indispensable element of life.
水对生存事是根本的。 例如，如果没有在人体的足够的水，人也许感到难受或容易地病。 要使事态更坏，一个也许死于干渴。 同样，植物也许凋枯或死因缺乏水。 是明显的所有生存事需要水保持活。 从水判断的重要性，我们应该会保存水。 第一件事是停止污染水，因为什么我们真正地需要是清水。 同时，请务必关闭在使用水之后的龙头。 并且我们应该做高效率的用途水避免浪费它。 一种方式将回收同样多水尽可能。 要总结，我们在水应该节约以便维护水丰盈，是生活的一个不可缺少的元素。
这里的两篇可能有点长，不过应该能用。
祝你好运！
1 Water is essential to living things. For instance, if there is no enough water in a human body, a person may feel uncomfortable or get sick easily. To make matters worse, one may die of thirst. Similarly, plants may wither or die for lack of water. It is apparent that all living things need water to keep alive.
Judging from the importance of water, we should know how to conserve water. The first thing is to stop polluting water because what we really need is clean water. At the same time, be sure to turn off the faucet immediately after using water. And we should make efficient use of water to avoid wasting it. One way is to recycle as much water as possible. To sum up, we should economize on water so as to maintain the abundance of water, which is an indispensable element of life.
水对生存事是根本的。 例如，如果没有在人体的足够的水，人也许感到难受或容易地病。 要使事态更坏，一个也许死于干渴。 同样，植物也许凋枯或死因缺乏水。 是明显的所有生存事需要水保持活。 从水判断的重要性，我们应该会保存水。 第一件事是停止污染水，因为什么我们真正地需要是清水。 同时，请务必关闭在使用水之后的龙头。 并且我们应该做高效率的用途水避免浪费它。 一种方式将回收同样多水尽可能。 要总结，我们在水应该节约以便维护水丰盈，是生活的一个不可缺少的元素。
2 Maybe the last water is our tears
As we know water is made up of our life,we could not leave without water.No water will no we.
Water is needed more and more,because our industry and agriculture produce developed fast.Somewhere water are scare,and some rivers are no water in them.But just little water is polluted,more waste water did not handled and discharge into river.
Around us there are a lot of students don't pay attention to save water,for example: after they washing their face and rinsing the mouth,they don't turn off the water tap .Let the water flowing day and night. What a pity!
Expect the tings I just mention,there are more and more in our life.So now I hope our students take care of wate.And the same time we need do things to prevent water pollute as we can do .That's what I want to say.Why not do it right now,come on
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