水的作用英文作文英语(通用19篇)

Water水

As the saying goes, the woman is made of water, that I said that my

mother is god. Mother is very love cry, tears like spring rain, in an unbroken line. Watch TV, my mother was often moved to tears; scary stories, mother sometimes cry; however, when I do something wrong, mothers love cry. I am very naughty, always love to do something wrong. Once, I and my

grandmother bickering, the grandmother gas straight said to his mother:" see, this is you teach the good son." In the evening, and everyone else to sleep, my mother came to my room, wake me up, tell me a reason, but I still have a little impatient, my mother said, tears as the bead curtain, I feel anxious, saw her mother look, I will get up immediately went to grandma house grandmas

apology, grandmother laughed, then point behind, I saw my mother at the door secretly laugh, from now on, my mothers eyes became my life buoy. Motherly love like water, my mental errors washing clean out completely.

俗话说女人是水做的，那我说妈妈就是水神。妈妈很爱哭，眼泪像春雨一样，连绵不绝。看电视时，妈妈经常会被感动的哭；讲恐怖故事时，妈妈有时也会被吓哭；不过，当我做错了事时，妈妈最喜欢哭。我很淘气，总爱做一些错事。有一次，我和外婆斗嘴，把外婆气的直对妈妈说：“看，这就是你教的好儿子。”到了晚上，等其他人都睡了，妈妈来到我的房间，把我叫醒，对我讲了一堆大道理，可我还有点儿不耐烦，妈妈说着说着眼泪就像珠帘一样，我难过急了，看见妈妈的样子，我马上起床跑到外婆房里给外婆赔礼道歉，外婆笑了起来，然后指指背后，我看见妈妈在门口偷偷地笑了，从此以后，妈妈的眼睛就成了我人生的航标。母爱似水，把我的错。

[学生英语作文：水

This Thursday is Thanksgiving Day. The writer O’Henry called it the one day that is purely American. Thanksgiving is not a religious holiday. But it has ritual meaning. Some Americans attend religious services on the day before Thanksgiving or on Thanksgiving morning. Others travel long distances to be with their families. They have a large dinner which is the main part of the celebration. For many Americans, Thanksgiving is the only time when all members of the family gather. The holiday is a time of family reunion. Thanksgiving week is generally one of the busiest travel times of the year. However, experts say this year probably will be different. On September 11th, thousands of people died when terrorists hijacked airplanes that struck buildings in Washington D.C. and New York City. Many people now say they are worried about flying on a plane. Travel experts say almost 6 percent fewer people will make long trips this Thanksgiving compared with last year. Many Americans who usually visit family and friends by plane are driving shorter distances instead this week. Some mental health experts say the attacks have frightened people. They say people feel safer and happier close to home. More than any other holiday, Thanksgiving is a celebration of family and home. Many people say that this year they are especially thankful for their families and friends and the good things in their lives. On Thanksgiving, people enjoy a long day of cooking, eating and talking. The traditional meal almost always includes the turkey with a bread mixture cooked inside. Other traditional Thanksgiving food served with turkey are sweet potatoes, cranberries and pumpkin pie. Stores are said to sell more food at Thanksgiving than at any other time of the year, and many people eat more food at Thanksgiving than at any other time of the year. Over the years, Americans have added new traditions to their Thanksgiving celebration. For example, a number off professional and university football games are played on Thanksgiving Day. Some of the games are broadcast on national television.

No creature can live without water and human being is not an exemption as well. Our body is mainly formed by water, about 70% or more. So everyday we need to drink a lot to keep ourselves healthy and full of energy. Except that, there are lots of things we need water in our daily life. We need to use water to cook, to wash clothes, to shower and so on. As we know the water shortage is a big issue all over the world. Therefore save water is very important in our life.

海水盐度如果我们分析海水的盐度，会发现地区间只有轻微的变化，然而有些小的变化是重要的。

导致海洋的盐度变化的基本过程有三个，其中之一是通过蒸发的方式即把液态水转化为水蒸气来减少海洋中的水分。

这样由于盐留了下来，所以盐度增大。

当然，如果这种方式走向极端，将会余下白色的盐晶体。与蒸发相反的是降水，如降雨，由此水被加入海中，海水被稀释，从而盐度降低。

这种情形会发生在大量降雨的地区，或江河入海岸处。因此，盐度通过蒸发减少水分而上升或通过降水或径流增加淡水成分而下降。一般来说，在阳光很

强烈的热带地区，海水的盐度略高于世界上其它没有热带那样多的蒸发的地区。同理，在江河稀释海水的海岸地带，海水盐度略低于其它海区。

第三个可以变更盐度的过程与海洋中冰的形成和融化有关。海水冻结时，溶于其中的物质被留了下来。这样，在新形成的海

水冰面的正下方的海水比在冰形成之前有更高的盐度。

当然，当冰融化的时候，会降低周围水中的盐度。

在南极洲边缘的威德尔海中，结冰过程增加低温海水的盐度，从而形成了浓度最大的海水。这些大密度的海水下沉，可以在世界海洋的深水域发现。

if the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. nevertheless, some of these small changes are important. there are three basic processes that cause a change in oceanic salinity. one of these is the subtraction of water from the ocean by means of evaporation--- conversion of liquid water to water vapor. in this manner the salinity is increased, since the salts stay behind. if this is carried to the etreme, of course, white crystals of salt would be left behind.

the opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. here the ocean is being diluted so that the salinity is decreased. this may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. thus salinity may be increased by the subtraction of water by evaporation, or decreased by the addition of fresh water by precipitation or runoff.normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.a third process by which salinity may be altered is associated with the formation and melting of sea ice. when sea water is frozen, the dissolved materials are left behind. in this manner, sea water directly materials are left behind.

in this manner, sea water directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.in the weddell sea antarctica, the densest water in the oceans is formed as a result of this freezing process, which increases the salinity of cold water. this heavy water sinks and is found in the deeper portions of the oceans of the world.

Keeping a diary in English does a great deal of good to my English study. Keeping a diary can help you review all the English knowledge you have learned. For example， you must know the correct spelling of each word needed in the diary； you must use the phrases correctly and choose the suitable sentence patterns， meanwhile， it is also necessary to use you knowledge of grammar in a correct way.Keeping a diary can help you not only to console your knowledge of English， but to form the habit of thinking in English. Practice makes perfect. By and by， your English writing will be greatly improved.

[谈写英语日记的好处英文写作

Dear Miss Liang,

I am writing to thank you for your hard work for me. With your help, I make

great progress in my study. A year ago, my study was bad and I didn’t want to

learn, but you never give me up. You told me that I was clever. As long as I

work hard, I would be great. In this year, you cared much about my study and

helped me a lot. When I made mistakes, you always pointed them out and helped me

to correct. Now, my study is much better than before, and I want to express my

gratitude to you. Hope you everything goes well.

Sincerely yours,

Lily

亲爱的梁老师：

您好!我写信是想要感谢你为我做出的努力。在你的帮助下，我在学习上取得了很大的进步。一年前，我的学习成绩很差，我不想再学习了，但是你从来没有放弃我。你告诉我我很聪明。只要努力，我一定很棒。近年，你很关心我的学习，帮了我很多。当我犯错的时候，你总是指出错误并帮我更正。现在，我的学习比以前好多了，我想向你表达我的感激。祝您一切顺利。

2015年武汉中考英语作文题是《一封英文自荐信》，以下是详细内容：

假设你是一名中学生，名叫田梅。你从南京青奥会英文网站上获悉他们正在招收志愿者，你想给组委会写一封英文自荐信。内容提示见下表：

基本信息

新城中学九年级学生，16岁

个人品质

精力充沛，随和，有耐心

主要特长

英语说的好，擅长与他人合作

相关经历

今年4月，成为“2014无锡国际马拉松赛”志愿者，……

注意事项：

1、自荐信须包含所给内容要点，要求语句通顺，意思连贯;

2、“相关经历”一栏中省略部分须用2-3句话展开合理想象，作适合发挥;

3、词数在80个左右，信的首尾已在答题卡上给出，不计入总词数;

4、信件内容必须写在答题卡指定的位置上。

参考词汇：

新城中学(New Town Middle School)

志愿者工作(voluntary work)

2014无锡国际马拉松赛(the 2014 Wuxi Tnternational Marathon)

Saving water means saving ourselves

Water is the basic source of life. There would be no life without water.

More and more water is needed in the modern society.

Many places are short of water; many rivers and lakes are polluted. What’s worse, many people are wasting water.

In order to protect water, let’s do something to fight against all kinds of pollution and waste of water.

Basketball 篮球

Volleyball 排球

Baseball 棒球

Badminton 羽毛球

Tennis 网球

Table tennis 乒乓球

Softball 垒球

Golf 高尔夫球

Billiards 台球

Jogging 慢跑

Swim 游泳

High jump 跳高

Mountain climbing 爬山

Singing 唱歌

Dance 跳舞

Setting-up exercise 健身操

Yoga 瑜伽

Wushu 武术

Judo 柔道

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 dont pay attention to save water,for example: after they washing their face and rinsing the mouth,they dont 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 .Thats what I want to say.Why not do it right now,come on .

水是最重要的，人不吃东西能活好多天，但缺水两三天就会死亡。下面语文迷为大家整理水的重要性英语作文，供大家参考。

英语作文1：水的重要性

The world is not only hungry,but also is short of thewater.This may sound strange for 70% of the surfaceof the use is covered by water.But 97% of this is seawater or soft water.Man can only use the other 3%fresh water that country rivers,lakes and from otherground and we cant ever use all of that becausesome of them are the iceberges and glaciers. Whatsworse, some of the fresh water has been polluted.Ourneed of water is increasing rapidly day by day. So we should take the measures to solve theproblem.

全世界不仅受到饥饿的挑战，更加缺水。地球表面的70%都被水所覆盖，这似乎让我们感到非常奇怪。但是，在这些水资源中有97%是海水，或是软水。人们只能够利用那余下的3%，这些水来自河流、湖泊、地表，我们无法利用所有的水资源，因为有些是冰川和冰山。更严重的是，许多淡水资源得到了污染。而我们每天对水资源的需求还在增加。所以，我们需要采取措施来解决这一问题。

英语作文2：水的重要性

Water is one of the most important things in life.the Water has no colour,no shapes,no taste and no smell.Water is every where.Its in the ocean,in the sea,in the river and in the late.Water is useful.We use water to cook rice.We use water to take showers.We use water to put out fires,and so on.Water brangs us happiness,too.We can swim in the late andsea inthesummer 。

Water is so important.Nothing can live without it.We should keep our water clean and protect our earth.

在我们的生活中,水是最重要的东西之一。水没有颜色,没有形状,没有味道也没有气味。水到处都有,在海洋里,在大海里,在小溪里都有水。水非常有用,我们可以用水淘米,用水洗澡,用水救火等等。水也能使我们开心,在夏天我们能在大海里游泳。

水如此重要,没有人生活能离开水,我们要保护地球是我们的水变的更加清澈。

英语作文3：水的重要性

"No water, no creatures" Its ture that the human being will run the end if there is no water in the world. Man can live for about 7days without any food, but 3 days without water. But I know that environmental pollution in our country is becoming more and more serious. In the country, we can see women washing clothes in the river. Litter is floating on the river. Waste water produced by a chemical factory is being discharged into the river. We do not see any fish in the river. The river is not so clear as before. Water quality is very bad. I am worried about it because water is important to all living things. Man can not live without water. I hope people pay more attention to this problem, especially the government. Try to control the pollution of water as early as possible. At last I would like to say, "To protect water resource is to protect life."

Today is your day to relax and let us take care of you. Happy Mothers Day.

今天是您休息的日子，让我们来照顾您。母亲节快乐。

We will try to make this your best Mothers Day ever.

我们将努力使今天成为您过得最愉快的母亲节。

On this day we honor you, dear mother.

亲爱的妈妈，我们向您致敬。

Where would we be without you, mom?

妈妈，没有您我们将流落何方呢?

On this day we all sit back and think about how much our mothers do for us.

在这一天，我们将会抽空休息一下，想想妈妈们帮我们做了多少事。

Ive tried many times to tell you, but Ill say it again: I love you mother.

我已经告诉您许多次了，但是我将再说一次：我爱您，妈妈。

Though it is hard to tell you sometimes, I do love you dearly, mom.

虽然有时要告诉您并不太容易，但是我真的非常爱您，妈妈。

We will try to make this your best Mother’s Day ever.

我们将努力使今天成为您过得最愉快的母亲节.

我也许并不常挂在嘴上，但我真正爱您。

There are little things that I should have said and done to show my gratitude, but it is appreciated what you do.

尽管我为表示谢意所说的和所做的都那么少，但同样也是表达对您所做一切的感激之情。

I dont take the time to tell you this often, but I love you, mom.

虽然我经常没有时间告诉您，但我真的爱您，妈妈。

Sometimes I cry and make you sigh, but you know that I love you so.

有时候我哭泣而使您叹息，但您却知道，我是如此地爱您。

To mother on Mothers Day: Thank you for all of the wonderful things that you h ave done for me.

母亲节给妈妈：谢谢您为我做了那么多奇妙的事。

Today is your day to relax and let us take care of you. Happy Mother’s Day.

今天是您休息的日子,让我们来照顾您.母亲节快乐.

On this day we honor you, dear mother.

亲爱的妈妈,我们向您致敬.

更多英语写作材料共享：

When people get sick, they will go to see the doctor, the most common thing the doctor says is that to drink more water. Most people don’t put it in their hearts, thinking it is just useless. But drinking more water indeed brings people health, it can make the blood circulate quickly and get rid of the harmful part. So it is good for people to drink more water no matter what they are doing.

当人们生病了，就会去看医生，医生说得最多的就是多喝水。大部分人并没有把这个放在心上，觉得这是没有用的。但是多喝水确实能给人们带来健康，它能让人的血液快速流通，排出有害的部分。所以，无论人们在做什么，多喝水是有好处的。

导语：水泊梁山风景区位于山东省济宁市梁山县境内，景区面积4.6平方公里 。因四大名著之一的《水浒传》中的梁山起义得名。以下是小编整理水泊梁山一日游英文作文的资料，欢迎阅读参考。

My father said he would take me to liangshan. I was very happy. There were also some lovely little grasshoppers, who jumped at my feet as if I thought I would take them with me.

My father and I came to liangshan and experienced many interesting and interesting things. What impressed me most was that when I went down the mountain, my father and I took a rest, and a few black ants climbed onto my black shoes. They may think my feet are a black car, thinking I can take them to Beijing. Are they good friends with the little grasshoppers?

We saw a deep hole in liang shan. I asked dad what was this? The father said, "this is the footprint of sun erniang." I asked my father curiously: "father, the footprints of sun erniang wont be so deep?" My father said, "it may be the place where the sun is practicing."

We go again, I saw a big stone reads "HeiFengKou" three characters, the book says this is the place where li kui guard, I saw a great stone carving beside the black tornado the statue of li kui, jovian he stood there, his hand two hatchet in her head, as if to say: "what bad guys dare to come I will kill him, I will see which people not afraid dead bird!"

Finally, we come to loyalty don, see a yellow bottom with black flag hanging in the sky, it reads "for good", I went into the front room see sung river sat in the middle, he is to the left of the wu, on the right is the Lu Junyi, the book says and Lu Junyi is sung river wus right-hand man, we are very worship sung river, sung river respectfully ke a head. On either side of the house has the statue of liangshan, a dozen tiger hero wu song, a leopard head Lin chong, black whirlwind li kui, green beast ali, monk, and nguyen lu, three brothers come in all shapes, lifelike.

Finished, we came to the foot down stage mode, through the bridge, then climb a mountain, a wooden bridge, mazes, very not easy to close, two place is wu3 song and lu guard. Then we went to see the war ship, and the ship was large, both of which were as high as two stories.

Finally, we went to the zoo again and saw the cute little white doves and the naughty little pigs on their mothers side, and the beautiful red-crowned cranes and ducklings chasing the game in the water. After watching the animals, we sat on the bus, sang songs and went home happily.

翻译

爸爸说要带我去梁山游玩，我高兴不已。同样高兴的还有几只可爱的小蚂蚱，它们在我的脚边跳来跳去，好像以为我会带着它们一起去似的。

我和爸爸来到了梁山，经历了很多新奇有趣的事情。最令我难忘的便是在我下山的时候，我和爸爸在一旁休息，几只黑黑的蚂蚁爬到我的黑皮鞋上。它们或许以为我的脚是一辆黑色的小汽车，以为我能够把它们带到北京去。难道它们和那几只小蚂蚱是好朋友么。

我们在梁山看到一个深深的小洞。我问爸爸这是什么?爸爸说：“这是孙二娘的脚印。”我奇怪的问爸爸：“爸爸，孙二娘的脚印不会有这么深吧?”爸爸说，“可能是孙二娘练武的地方”。

我们又往前走，看到一块大石头上面写着“黑风口”三个大字，书上说这是李逵把守的地方，我看见大石头旁边雕刻着黑旋风李逵的塑像，他威风凛凛的站在那里，他手握两把斧子，仿佛在说：“哪个坏蛋敢来我就把他干掉，我就看看哪个鸟人不怕死!”

最后，我们来忠义堂，看到天空中挂着一面黄底黑字的旗子，上面写着“替天行道”，我进了正面的屋子看到宋江坐在中间，他的左边是吴用，右边是卢骏义，书上说吴用和卢骏义是宋江的左膀右臂，我们非常崇拜宋江，就给宋江恭恭敬敬磕了一个头。两侧的房子里有梁山好汉的塑像，有打虎英雄武松、豹子头林冲、黑旋风李逵、青面兽杨智、花和尚鲁达、还有阮氏三兄弟，一个个形态各异，栩栩如生。

看完了，我们就来到山脚下去闯关了，穿过吊桥，再爬网山，过独木桥，走迷宫，好不容易到了二关，二关是当年武松和鲁智深把守的地方。然后我们去看战船，战船可大了，都有两层楼那么高。

最后，我们又去了动物园，看到了可爱的小白鸽和顽皮的小猪趴在妈妈身边，还有美丽如仙的丹顶鹤和小鸭子在水里追逐游戏。看完动物，我们就坐上公共汽车，唱着歌，心情美美的回家了。

2013年重庆高考英语作文题目：用英文给WWF写一封信

写作一(满分15分)

请结合材料，按要求用英文写作。

A mother said,"My son is always on the phone, sleeping,out with his friends,or in his room He never has time to talk to me."

要求：(1)就此材料发表你的看法;

(2)紧扣材料，有明确的观点;

(3)词数不少于60;

(4)在答题卡上作答。

写作二(满分20分)

调查显示，中国长江江豚(finless porpoise)受人类活动影响而濒临灭绝，目前总数不足1000只。假设你是李华，现请用英文给WWF(世界自然保护基金组织)写一封信，请他们关注这一状况并提供帮助。内容应包括：

1.说明写信的目的

2.简述江豚现状

3.希望WWF如何帮助(比如：资助江豚保护项目等)

4.表示感谢并期待回复

注意：

(1)词数不少于80

(2)在答题卡上作答;

(3)书信格式及开头均已给出(不计入总词数)。

Water has no colourno shapesno taste and no smell.Water is every where.Its in the oceanin the seain the river and in the late.Water is useful.We use water to cook rice.We use water to take showers.We use water to put out fires.

Water brings us happinesstoo.We can swim in the late and sea in the summer .People in china have the Drago Boat race in the river.

Water is so important.Nothing can live without it.We should keep our water clean and protect our earth.

水没有颜色没有形状没有味道没有气味。水是每一个地方。它在海洋在海洋里在河里和后期。水是有用的。我们用水来煮饭。我们使用水洗澡。我们使用水灭火。

水给我们带来幸福。我们可以游泳在夏天末和海洋。中国人有德拉戈在河里划船比赛。

水是如此重要。没有什么可以生活没有它。我们应该保持水的清洁保护我们的地球。

Dear Miss Jiang,

I am writing to share my ideas about our English class. Now, our main

material in the class is the textbook, which is reasonable. But I think we can

get some other resources, such as English magazines, songs, movies and so on. We

can learn the basic knowledge from out textbook, and get some more from other

materials. In addition, those materials are more authentic and practical, which

will be useful to our learning. Besides, by doing so, we can get more fun from

learning and develop our interest to English. Please take good consideration of

my advice. Thank you!

Sincerely yours

Bella

尊敬的蒋老师：

您好!我写信是想和你谈谈我对英语课的想法。现在我们上课用的主要材料是课本，这是合理的。但是我认为我们可以获取一些其他资源，比如英语杂志，歌曲，电影等等。我们可以从课本上学到基本的知识，同时从其他材料获取更多知识。另外，那些材料更真实和实用，这对于我们的学习会有好处的。此外，通过这样做我们可以从学习中获得更多乐趣从而培养我们对英语的兴趣。请您认真考虑我的建议，谢谢!

1．词语选择的重要性

在The Right Word at the Right Time的“序言”中，编者对词语选用的重要性作了一个很好的比喻：“Using the right word at the right time is rather like wearing appropriate clothing for the occasion：

it is a courtesy to others，and a favor to yourself-a matter of presenting yourself well in the eyes of the world."

显然，说话或写文章时用词适当比穿着适当难度大得多，因而也具有更大的重要性。在我国，古人写文章时常为一个词语的选用具思苦想，因而有“语不惊人死不休”的说法。

成语“一字值千金”也说明了选择词语的极端重要性。有时“一字之差”造成令人遗憾的败笔，或招致成千上万的经济损失。这些反面的教训也告诉我们必须重视词语选用的问题。

2．词语选择的可能性

实际上，我们每个人的脑子里都有了一个或大或小的词库，只要我们肯去发掘，往往可以得到更好的表达方式。这是我们做好词语选用的主观条件。

从客观条件广看，我们有各种类型的词典和参考书，只要我们平时多翻译、多阅读，写作时勤查考，就会在词语选用上不断进步。当然，一部好词典也不会毫无缺点，更难以面面俱到，因此在这里我们应牢牢记住著名英国作家、评论家和辞书编纂家Johson的话：

以下是《九年级英语作文:我和哥哥的历险记》翻译。

It was sunny that day. Our parents were out, so there were only my brother and me at home. We were bored. So we decided to go boating. We played happily. But when we went to the middle of the river, the weather changed. It rained suddenly. We didn t bring umbrella and our boat was bamboo raft. As the rain was more and heavier, we were afraid to sink in the river. We tried our best to make our boat in shore. But our bamboo raft had more water on it. I was afraid to die. My brother was also very anxious. At that time, my mother came and she pulled us back to the ground. It was thrilling.

那是一个晴天。我们的父母都出去了，所以只有我和哥哥在家。我们很无聊。所以我们决定去划船。我们玩的很开心。但当我们走到河中央时，天气变了。突然下起雨来。我们没带伞，而且我们的船还竹排。由于雨越来越大，我们担心会沉到河里去。我们尽力使我们的船靠岸。但是竹筏上的水越来越多。我害怕死了。我哥哥也很着急。那时，我妈妈来了来了，她把我们拉回到地面。真的惊心动魄啊。

Water is one of the most valuable resource in the world, is the ideal liquid to sustain life. Mammals in vivo is between 60% and 65% water, two-thirds of the human body weight, 99% of the brain, bones are about 44% water. Lack of water, the human and the earth will not survive, forests will disappear, the plant will perish, the earth will appear the boundless desert, signs of life will disappear.

Currently the worlds fresh water accounts for only 2.5% of the total water resources, of which more than 70% is frozen in the arctic and Antarctic ice sheets, and it is difficult to use the snow on the mountain glaciers and permafrost, 87% of the fresh water resources is difficult to use. Humans really able to take advantage of the freshwater resources is part of the rivers and lakes, and groundwater, accounts for about 0.26% of the earths water.

Given the global freshwater resources shortage, not only will soon fall into the predicament of the water shortage in many countries, economic development will be limited, on January 18, 1993, the 47th United Nations general assembly resolution, determine the annual March 22 as "world water day". After the water act of the Peoples Republic of China promulgated in 1988, the ministry of water resources is to determine the annual July 1 to 7 as "Chinas water week", considering the "world water day" and "China water week" the purpose and content of basic same, therefore, starting from 1994, change the time of "Chinas water week" to the annual March 22 to 28, time coincidence, make a campaign more highlights the theme of "world water day".

水是世界上最宝贵的一种资源，也是维持生命的理想液体。哺乳动物体内60%至65%是水，人类体重的2/3、大脑的99%、骨骼的44%也都是水。缺了水，人类和地球将不能存活，森林将不复存在，植物将灭亡，地球上将出现无边的沙漠，生命的迹象将消失。

目前全世界的淡水资源仅占其总水量的2.5%，其中70%以上被冻结在南极和北极的冰盖中，加上难以利用的高山冰川和永冻积雪，有87%的淡水资源难以利用。人类真正能够利用的淡水资源是江河湖泊和地下水中的一部分，约占地球总水量的0.26%。

鉴于全球淡水资源不仅短缺、许多国家将很快陷入缺水的困境，经济发展将受到限制，1993年1月18日，第47届联合国大会作出决议，确定每年的3月22日为“世界水日”。1988年《中华人民共和国水法》颁布后，水利部即确定每年的7月1日至7日为“中国水周”，考虑到“世界水日”与“中国水周”的主旨和内容基本相同，故从1994年开始，把“中国水周”的时间改为每年的3月22日至28日，时间重合，使宣传活动更加突出“世界水日”的主题。