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关于水的作文

关于水的作文

关于水的作文范文第1篇

可是突然地,我找不到要写它什么,也许是因为它可写的地方太多,多得让我不知道从哪儿说起——正如我在周末的不知道穿什么衣服。最终,我想到的是两个星期前历史老师的课题。一个与“海洋文明”有关的课题。

文明,有海洋文明和大河文明。提取这两种文明的“公因式”,我们可以发现——它们的“公分母”是“水”。

水,通过不同的途径养活了不同类不同的文明。在养活文明之前,它先养活了人;在养活人之前,它先养活了组成人类身体的细胞。然后,让这些细胞因为水组成了“组织”、“器官”,最终组成了正在破坏、污染,并且在腆着脸继续使用“水”的人。

关于水的作文范文第2篇

动物初二水平英语作文一:My Pet

I have got two baby cats. they are very beautiful. One is yellow. the other is white. they are very lovely. the yellow cat is very naughty. He likes to play with people. He often runs here and there. His favourite game is playing with balls, ropes and stones. But the white cat is very gentle. She likes to wash her face. And she doesn′t like to play with people. She often jumps onto my knees. I like to give her a bath.

Oh, my baby cats bring me much happiness. We are very good friends. I love them.

动物初二水平英语作文二:Zoo

Welcome to Beijing Zoo. Let me introduce myself. I'm Wang Ping. You can call me Xiao Wang. Today I'll show you around our zoo. Our zoo is the biggest in China, and it has the largest number of animals.

Here is the plan for today. We'll go to the Panda House first. You can see the world famous animal.They look very lovely and honest. Then we,Il watch the beautiful birds. The Monkey Hill is near to the Bird World. The clever monkeys will welcome you warmly. Finally, we'll go to the Lion Park. Don't be close to such animal.

Please remember, don't feed the animals. OK! Have a good holiday! Thank you.

动物初二水平英语作文三:Go to the zoo

Today was Sunday. My parents were free, too. I got up at 7'oclock, because my families planed to go to the zoo. After the breakfast, I took the camera and went to the station together with my parents. It was already 9'oclock when we arrived at the zoo. There were so many monkeys, tigers, lions, wolves and other animals in the zoo. We took many photos in the zoo with the animals. I will show these photos in my class after they were printed. The time passed so fast, we left the zoo at 1'oclock PM. I was so happy today. Now I feel very tired and I will go to bed early tonight.

动物初二水平英语作文四:My favorite animals

My favorite animals are swans.they are white.they can swim very well.I think they look like a beautiful girl in a white dress.they have a pair of wings and they can also fly well.I believe they are angles from the sky.they bring us love and make us happy.they are always friendly to us.We can't hurt them,because they are our friend.I love them!I like dogs,too.they are not beautiful,but they are the best friends.they keep the thieves away.Dogs have the best listening and eyes.they can hear in the nosiy,see in the dark.If we are in danger,they will help us at once.And they don't mind their lives.So,I love them.

动物初二水平英语作文五:My favourite animal

My favourite animal is tortoise. Tortoise walk not fast. But I like the tortoise. Why? Because, tortoise is a cute animal. It have a short tail and a four short foot. It have a little head and a hard shell. They are forty-five little and cute tortoise in My home. They like to play in the water. When they afraid some thing. They wall run fast. They like to eat the fish. I often buy some small fish to them to eat. They can catch the fish fast. First, they fake(假) sleep. When the fish swim near they mouth. They catch the fish fast and bit the fish head. So, the fish die. They can eat the fish. In winter. They like to sleep in the sand. When they sleep, they don’t eat any food.Because they wall hibernation. But, when they are thirsty. They come out of the sand. So, we must give water to them to drink.

I love the tortoise. I hate the eagle. Because, the eagle often eat the tortoise with it sharp mouth.My favourite animal is tortoise.

动物初二水平英语作文六:My favourate animal

关于水的作文范文第3篇

[关键词:内地城市合理利用海水生产和生活]

[问题的提出]:近几年,随着城市化建设的不断推进,城市人口数量不断上升,商品房住宅建设呈几何级数扩展,随之而来的对城市节水、节电,节能减排的意识和要求也提上了各级政府的工作议程之中,有些部门已经将太阳能利用率作为考核城市房地产开发商的一项重要依据,我们安徽省铜陵市在2007年已经实现了将城市居民生活用气由天然气取代煤气,取得了很好的经济效益和社会效益。实践不断证明,西气东输、南水北调、北煤南运、太阳能利用等不仅正在改变着人们的生活方式,同时也在增强人们的节能意识和改变人们的生活理念,本文就是在受到西气东输的启发下,对内地城市生活用水能否利用海水方面所做的一点思考。

[正文]:众所周知, 我们伟大的祖国有13亿多人口,陆地自然资源人均占有量低于世界平均水平。根据有关方面的统计:中国有960万平方公里的陆地国土,居世界第三位,但人均占有陆地面积仅有0.008平方公里,远低于世界人均0.3平方公里的水平;全国近年来年平均淡水资源总量为28000亿立方米,居世界第六位,但人均占有量仅为世界平均水平的四分之一;随着祖国经济建设的飞跃发展,生产和生活用水需求总量也在不断上升,对中国这样一个发展中的沿海大国,国民经济要持续发展,必须把海水的开发和利用作为一项长期的战略任务。

长期以来,我国城市供水系统都采用单一供水方式,即不管什么用途都按照生活饮用水标准供给。在过去经济不发达时期,用水量不大、用途种类单一的情况下,采用这种方式是可行的。如今,优质水资源十分紧张,而生活水用途日趋多样化的情况下,仍采用统一供水方式,既是对水资源的极大浪费,也是对人力、物力与能源的浪费。更何况,这种单一供水方式也已经难以满足当今人们对优质饮用水的需求。为此,我们认为,在内地城市合理利用海水,区分不同的用途进行分类供水、分类使用非常必要。

前不久,媒体了青岛市“十五”科技重点攻关局立项的海水冲厕技术与应用研究已经完成并通过专家验收。他们与国家海洋局天津海水淡化与综合利用研究所联合承担的国家项目“大生活用海水技术示范工程研究”课题研究部分已基本完成,并通过了科技部阶段验收。继2004年在崂山区沙子口街道的南姜小区进行全国首个海水冲厕示范小区试点后,今年该局又协调组织在胶南的“隆海•海之韵”居民小区进行建筑面积总计25万平方米的海水冲厕试点,建成后每天至少减用淡水1000立方米,实施海水冲厕,既可缓解淡水资源紧缺的矛盾,又将大大推动相关产业的发展,具有重要的社会效益和经济效益。

诚然,青岛是濒海城市,自有地域优势,而地处长江之滨的铜陵既非临海也并不是缺水城市,但是随着城市建设的不断发展,铜陵的水资源必将受到上游来水减少和自身用水需求不断增加的限制。由此,我们建议铜陵市政府在城市发展中,以科学的发展观统领城市建设的大思路,建立超前意识;创造良好的投资环境,积极引进投资,尽早进行海水利用的可行性研究和开发(既然西气能够东输,为什么海水就不能内输呢?),把开源和节流结合起来,为保障城市供水的安全性和经济性做出长远的规划。

从经济条件上看,目前我们国家正处在经济高速发展阶段,基础设施建设和能源建设符合我国的产业发展战略,何况还有谁投资谁收益的各种投资优惠政策,更不用说海水取代淡水本身的经济效益。

从技术条件上看,我国早已具备了世界先进的海水淡化、海水防腐、防腐材料等项技术和设备,海水工业冷却、海水脱硫除尘、海水供热制冷、海水淡化发电、海水制作饮用水、海水入户冲厕、海水用作景观水等等,都预示着海水综合利用的前景非常广阔,随着科学技术的不断发展,海水替代淡水的作用将愈发显现,它不仅能够为我们节约大量宝贵的淡水资源,更能在国家建设中发挥伟大的战略作用。

海水淡化利用方面:街道洒水、园林绿化、景观喷泉、卫生间冲厕、城市消防、对水质要求不高的工业用水、大型商场及宾馆、写字楼卫生清洗等。(全文完)

课题论文:安徽省铜陵市长江路小学502班 :李文韬

课题指导:安徽省铜陵市长江路小学502班班主任 :王婷

[ 相关资料:]国外分质供水的概念及其讨论

在国外,分质供水(dual water supply, dual distribution systems)有着长期的历史。国外现有的分质供水系统都是以可饮用水系统作为城市主体供水系统,而另设管网系统将低质水、回用水或海水供冲洗卫生洁具、清洗车辆、园林绿化、浇洒道路及部分工业用水(如冷却水)。这种系统称为非饮用水系统,通常是局部或区域性的,是供水主体系统的补充。设立非饮用水系统,显然是着眼于合理利用水资源及降低水处理费用。在这方面,我国国内现有的分质供水系统,如上海桃浦工业区工业用水系统、青岛的城市污水回用系统,特别是香港特别行政区的海水冲厕系统,以及其它一些城市现有或拟议中的城市或区域性分质供水系统与国外在形式与内容上并无差别。

日本早在20世纪70年代就引入复式分质供水系统——“中水道”系统。该系统的低质水的原水主要来自建筑物、住宅区、城市内部的下水,经过多次处理后,重新在自己原来的场所再利用。由于它的水质次于“上水”,优于“下水”,故被称为“中水”。这样,不仅保障了城市供水,更保护了水环境,节约了水资源,促进了水系生态的正常循环,是一举多得的好方法[3]。

美国供水工程协会(AWWA)下属分质供水分会(Distribution Division Committee on Dual Distribution Systems)于1983年提出了《分质供水指南》以总结国际上现有分质供水经验,并期望以此为起点,为建立全美统一的分质供水标准规范奠定基础。《分质供水指南》对有关术语定义为[4] :

可饮用水(potable water)——符合联邦与州政府水质标准,用于饮用、烹调与清洗的水。

非饮用水(nonpotable water)——人们偶然消费而不致造成危害,用于非饮用用途的水,在家庭只用于冲洗卫生洁具(冲厕)。

仅供饮用的管道供水在国际上未有先例,而我国国内正在试行的分质供水是两个管道系统,分别为饮用水

(drinking water)与一般用水(subpotable water)。

美国环保局认为:净水器(point-of-use device)和瓶装水只能作为改善水质的临时措施,因为使用净水器和瓶装水并不被认为是能满足《安全饮用水法案修正案》(SDWAA)规定的最大污染物浓度(MCLs)的方法,因为它们并不能提供全部生活用水。

美国供水工程协会(AWWA)表示,由它向居民家庭提供的生活用水,即用户的每个水龙头的出水,都是可饮用的。

这里值得探讨的是:我国目前已经成为关注热点的另一种分质供水概念,是指另设管网供应少量专供饮(食)用的“纯净水”,而将城市自来水作为“一般用水”的一种供水方式。这同国内外现有的或传统意义上的分质供水是两个概念,内涵有很大的差别。

关于水的作文范文第4篇

My Favourite Teacher

Mrs.Gao is my english teacher.She is a good teacher.She looks like young.

She teaches class hard,we learn hard,too.Mrs.Gao has a blog,I't great.

My favourite thecher is his.

My Favourite Sport

I'm a healthy boy,I like play badminton best,badminton is my favorite sport.

One day,I played badminton with my classmate.His mane is DuanYu.He is a good player.We played hard.Finally,I won,DuanYu lost.We werw happy.

After game,we were tried.We bought two bottles of pop.The pop bottle looks like badminton ball.That's fun!

Make A Healthy Body

Do you know have a healthy body is good for you?I know!

Muscles、skin and bones make a body.You need exercise、take baths or shower and eat food.

关于水的作文范文第5篇

您好!

每当我走进校门,一股清晰的空气,一阵阵树的清香扑鼻而来,我很喜欢我们的校园,因为校园之内有许多花草树木。但是校园内有一个地方使我特别恼火,那就是食堂,每次我去洗米的时候都会看到小水滴孤单的流下眼泪,我想小水滴流眼泪的原因是;有些小朋友个子不够高,水龙头拧不紧所以小水滴留下了眼泪。有些同学可能是时间的关系,太匆忙忘了关水龙头,所以又一次,小水滴留下了眼泪。正是这一次又一次的小错误可能就会影响我们的下半生啊!

节约用水,不仅仅是一个口号,应该从珍惜一点一滴水做起,要牢固树立‘节约用水光荣,浪费用水可耻’的观念,时时刻刻注意节约用水。作为本校的的学生,我提出以下建议;

一、在每个水龙头下面放一个水桶,可以把淘米水倒在水桶里,这样这些淘米水就可以洗碗了,还可以浇菜,一举三得!……