关于描写水的作文素材【一】
as we know , water is very important to man, we can’t live without water. the amount of water which is suitable to drink is less and less. but some people don’t care about it .they waste a lot of water in their daily life. even worse, they pour dirty water in to rivers. they throw rubbish into rivers , too. many rivers and lakes are seriously polluted.something must be done to stop the pollution. only in this way can we live happily. if we don’t save water, the last drop of water will be a tear-drop of us.
we know that despite the fact that seventy percent of the earth＇s surface is covered with water, only a little part of it is fresh water. yet the demand for fresh water in our daily life and in industry seems great. moreover, with the expansion of the population and development of industry, the amount of the fresh water needed will increase even rapidly. it is estimated that if such a trend continues, the fresh water on earth will be exhausted very soon. what is worse, more and more water resources are being polluted, making the water unfit to use.
in addition,we must warn the people of the importance of water and the danger we are facing.for example, in most asian societies where rice is the staple food, the water used after cleaning rice contains various nutrients for plant growth and is an excellent detergent to flush the toilet. furthermore, the intriguing idea of converting the inexhaustible sea water to fresh water supplies will be the ultimate solution.
关于描写水的作文素材【二】
是弧形的建筑构造，而用天然石料作为主要建筑材料的拱桥就称之为石拱桥。在江南水乡山村，较为常见的是单孔石拱桥，该类石拱桥状若蓝天长虹，美其名曰“飞虹”，宋代苏东坡曾有“东海独来看日出，石桥先去踏彩虹”句。 磐安县尚湖镇栗树山村就有一座兴建于清道光年间，至今保存完好的单孔石拱桥，当地百姓称该石拱桥为“筒桥” 筒桥”横跨村边溪流，南北走向，长22。2米，宽4。3米，离溪面高8。5米，中孔净跨18米; “筒桥”两边石阶逐级向上，南30阶，北24阶;拱顶呈长宽为3。6米的正方形，并置整条石做桥栏。这座单孔石拱桥全部使用条石砌就，拱圈及桥面共用600余块打凿光滑的砾石岩和花岗岩整齐砌筑，看起来十分美观。
据记载，永兴桥建成于清道光二十三年（葵卯年，公元1843年）的仲冬，如此算来永兴桥至今已有166年。后来永兴桥又重修过一次，时间为民国二十二年（公元1933年）仲冬，也就是说距最近一次重修业已过了76年。这么坚固的桥建筑足以体现了古代劳动人民的智慧与结晶。
永兴桥建成后还成为了联结玉山区域和磐安县城安文之间山区交通的必经之路。之后，玉山至安文公路通车，永兴桥又作为桥对面湖口、马南山等村通往栗树山的交通桥一直使用至上世纪末。
现在的永兴桥，已失去了交通的功能。但已成为了文物供人们欣赏。在周围的土地、树木、溪流的映衬下，颇有古色古香的味道。
关于描写水的作文素材【三】
水是一切有机体的主要组成部分，全球动植物和40亿人体内含有约11200亿吨水。人类社会依赖水而生存发展。古代，人类对水取利避害，适应水而生存；近代，人类对水兴利除害，兴建工程，开发水利，控制水害；现代，随着社会和生产的发展，地球上可资利用的水日趋短缺，水体受到污染，严重影响人类生存的环境，人类逐渐认识到水是一种重要资源和环境因素，从而在更高的水平上开始对水开展了新的兴利避害活动。
世界气象组织1996年初指出：缺水是全世界城市面临的首要问题，估计到2050年，世界2/3以上的人口将生活在城市，而全球有46％的城市人口缺水，必须平衡社会经济发展和城市淡水供应管理二者之间的关系，进行水资源的储存、输送和管理的大规模工程建设。
相关文章：
