水为什么重要 用英语说明理由

发布网友 发布时间：2022-04-23 00:46

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热心网友 时间：2023-09-09 07:50

From man's Angle for:

No food, we can live several weeks, but there's no water, we a few days later would die dehydration, we body more than two thirds of the part is water, but most of them don't know the importance of drinking water.

Water is the source of life, health of the company. Medical research proof, fetal body has 90% of moisture, alt body has 70% of moisture, old moisture fell to below 60%, throughout human life is lost 30% of moisture process, which is medicine said: "drying is the main performance of the aging," life the most basic activities a metabolism also should pass water sport to realize, all sorts of human body place zhai to nutrients, protein, fat and other, finally to deep soluble in water can be transported by blood, organization absorption. The internal organs have 700% - 80% by water formed.

From the large scope for:

Water is essential in instrial proction of a raw material, many instrial proction are taking water as the carrier and the medium. Agricultural proction more dependent on water.

The current situation of our country's per capita water of ownership is very low, China belongs to the shortage of water resources countries. And our country's water resources distribution in the south and north of unbalanced less more than the state. Therefore save water protection of water resources is a very pressing task.

How to protect the water save water? From indivials, life must pay attention to the intravenous drip place, do people go, wash your hands with water turn open dot, should accomplish water multi-purpose, such as using the water wash dish to flush the toilet, etc.

From the state's point of view, the importance of water to the publicity, promoting water-saving procts, such as water-saving bibcock low-flush toilets, etc. To increase the sewage disposal investment, intensify the supervision of the water pollution, etc.

Our water shortages, per capita are only for the world average level 1/4, and time-space distribution is extremely uneven, water resources utilization low, run, run, drop, leakage phenomenon common, water resources waste is serious. Along with our country's rapid economic development, the city, the constant expansion of urban water consumption and water volume increases unceasingly, causing city water shortage, water quantity increasingly more pronounced contradiction between supply and demand. And water pollution has become more and more serious, make originally good water quality fresh water supply is limited. For development of fresh water from centralized used at point distance is farther, one-time investment costs is high, so, some water-lack area unable to expand water supply capacity, which seriously restrict the economic development of our country.

In order to solve increasingly prominent contradiction between supply and demand of water saving and, on the other hand, need to use limited water resources, on the other hand it should actively promote the sewage recycle technology of water resource utilization, walk the road of sustainable development. Water-recovery technology is accord with the goal of technology, it has the advantage of saving investment, rapid, operating costs low characteristic. Meanwhile, the stable source of urban sewage and sufficient water and for the practice of this technology offers guarantee. Promote Is proved by practice, water-recovery are an effective water-saving technology. This technique of popularizing widely, saving a valuable resource, alleviated the contradiction between supply and demand of urban water resources, rece the burden of urban drainage system, control the water pollution, protecting the ecological environment is important social and environmental benefits, and will bring significant economic benefits.

The water environment deteriorating trend and not got effectively. The soil erosion area 1266 square kilometers, accounting for land area of 38%. The river and nearly half of the city of waters by 9 into different levels of pollution. Water the deterioration of the environment, destroyed the ecological system, further intensified water resource scarcity of conflict. Along with our country the increase of population, economic development and the acceleration of urbanization, China water resources situation would get much worse to water lack, water pollution is severe and flood disaster is the characteristic of water crisis has become China's sustainable development the important restriction factors, become to achieve a new period of economic and social development goals with basic, overall and strategic problems.

Alarmed that, China has in recent years water pollution incidents, especially since last year, tai lake, chao lake, dianchi lake successively mass outbreak algae, some important source of drinking contaminated, serious influence people's proction and life and social stability.

Our country has 82 percent of the people who drink shallow Wells and JiangHeShui, including water pollution chastised bacteria than the standards of hygiene by 75%, organic matter pollution of drinking water population of about 160 million. For a long time, people have considered the tap water is safety and health. But, for now, tap water pollution already was not health. An investigation shows that, in the world in tap water and to measure the chemical pollutants have major kinds, including some confirmed as carcinogens or promote cancer objects. From the tap water drinking standard show that China is still low level, tap water is currently only can adopt precipitation, filtration, disinfection method, add chlorine will JiangHeShui or ground into simple processing of drinking water. Can effectively kill chloric tap water add except germs, also can bring many polyhalogenated hydrocarbon compounds, these organic chlorine content increase exponentially, is a cause of human suffering from various gastric cancer (the biggest source. At present, the pollution of the city's composition is extremely complex, polluted waters in addition to heavy metal outside, still contain much pesticide, fertilizer, detergents and other harmful resie, even the tap water boiled, the above resie still doesn't go away.this boiling water, and increased the acid-forming concentration, be beneficial to human body health reced the dissolved oxygen content, but also made nitrite and SanLvJiaWan etc carcinogens increase, so the, boiled drinking water safety coefficient is not high. According to the latest information disclosed, at present our country main cities only 23 percent of residents drinking water meet hygiene standards towns and rural drinking water rate lower. Water pollution prevention urgentmatter, shall ensure that drinking water qualified. Therefore should enlarge the water pollution monitoring strength, and set up water supply source reserve.

热心网友 时间：2023-09-09 07:51

First of all,all human beings,animals and plants need water to be alive,or they would die;
Sencond of all, we need water to wash dirty things,keep ourselves in good environment.
Thirdly,water can give us rain,snow and ice,such different view in different season.
In fact,according to some scientific report,about 70% of human body is made of water.And 70% of the surface of the Mother Earth is covered by water as well.

热心网友 时间：2023-09-09 07:51

water is important to human because it's the source of life. Scientists have proved that People can live without food but cannot without water within a certain time.