阿提卡
一篇关于环境的英文报告In the environmental science, various generic name of natural factor generally thought the environment means space of surround the crowd and canned influence mankind a life and develop directly among them.In the mankind several million years progress, the environment folio creates mankind's civilization and progress exertive huge function.Atmosphere,headwaters,land,steppe,BE all material foundation that can let the mankind exist;But the forest,mineral hide etc., the resources behaves a type again to develop to provide material continuously, creating mankind's civilization of the height on the earth.But, mankind at the time of developping to make use of the environment resources, also to own of from descended the existence environment to proce a series of environment problem.For this, I made inquisition. Investigate time:In 2004 on the night of April 15th.Location:Family network.Investigate object:Global natural ecosystem environment circumstance.Investigate a result: 1.The ozone layer is break.The ozone layer have even flow 1/100,000 of the layer total amount, although the content is very low, can absorb the function of the ultraviolet ray, because the mankind break, the ozone layer consumes to rece quickly, drive extreme breakage.It is empty such as the Antarctic ozone layer.In 1994, the ozone layer of the sky of South Pole were break of the area reaches to 24,000,000 square kilometers.The ozone layer of the sky of South Pole becomes within 2,000,000,000 years, but in the last century is break 60%.The Europe and North America topless ozone layer equally reced 10%-15%, sky in Siberia even reced 35%, so scientist the warning say the Earth sky ozone layer to be compared ordinary people to imagine far by the degree for break of want severity and have to be many. 2.Fresh water resources crisis.The Earth ground although 2/3 overlay for the water,97% for can't drink of sea water, don't to 3% only have is a fresh water, among them 2% seal to save in very glacier in.In only 1% fresh waters, 25% uses a water for the instry, 70% uses a water for the agriculture, only 5% can be provided to drink the use is with the other life.Currently more than 100 nations and the region water shortage in the world, 28 among those nation is list as the nation and the region of the serious water shortage.According to statistics the our country north a water shortage the area total area to reach to 580,000 square kilometers, the our country has more than 300 city water shortages in more than 500 cities, being short of water quantity to reach to annually 5,800,000,000 sign a square rice.Because the mankind's breakage make the Earth water resources limited, not a few big rivers,such as the Colorado river of the United Stateses,, the yellow rivers of China all already the male breeze no longer, in former days the magnificent prospects of"the torrent arrive sea and do not reply back" had become history to remember. 3.The land hungriness turn.The world hungriness turns phenomenon to turn worse still at present.Global existing more than 1,200,000,000 personseseses are subjected to the direct threat that the hungriness turn, having among them 1.3,500,000,000 people has danger of lose the land in the short date.Up to 1996, the global hungriness turn of land already to 36,000,000 square kilometers, have to the whole Earth land area of 1/4, equal to Russia,Canada,China and the total of the American national territory area, world love the hungriness turn there are more than 100s in the nation of[with] influence, the hungriness turns to be extend with the speed of every year 5-70,000 square kilometers, the area of equal to Ireland.For be subjected to people whom the hungriness turns threat to say, the hungriness turns to mean they will lose the most basic existence foundation-have the disappearance of the land of proce the abilities. Postscript:People have the crisis for face a lot of, if mankind just as since go toward ground breakage environment, so the mankind will destroy completely, the Earth will also become a faraway history in the cosmos. 是不是长了点? 原文在这: 在环境科学中,一般认为环境是指围绕人群的空间及其中可以直接影响人类生活和发展的各种自然因素的总称。在人类几百万年的历史进程中,环境对开创人类文明和进步发挥着巨大作用。大气、水源、土地、草原、都是让人类得以生存的物质基础;而森林、矿藏等资源又为人类的不断发展提供物质,创造出地球上高度的人类文明。但是,人类在开发利用环境资源的同时,也对自己的自下生存环境产生了一系列环境问题。为此,我作了调查。 调查时间:2004年4月15日晚。地点:家庭网络。调查对象:全球自然生态环境情况。调查结果: 1。臭氧层被破坏。臭氧层占平流层总量的十万分之一,虽然含量极低,却能吸收紫外线的功能,但是由于人类破坏,臭氧层迅速耗减,被极度破坏。如南极的臭氧层空洞。1994年,南极上空的臭氧层被破坏的面积达2400万平方公里。南极上空的臭氧层是在20亿年里形成的,可是在上个世纪里就被破坏了60%。欧洲和北美洲上空的臭氧层平均减少了10%——15%,西伯利亚上空甚至减少了35%,因此科学家警告说地球上空臭氧层被破坏的程度远比一般人想象的要严重得多。 2。淡水资源危机。地球地面虽然2/3为水覆盖,但是97%为无法饮用的海水,只有不到3%为淡水,但其中2%封存于极地冰川之中。在仅有的1%淡水中,25%为工业用水,70%为农业用水,只有5%可供饮用和其它生活用途。目前世界上100多个国家和地区缺水,其中28个国家被列为严重缺水的国家和地区。据统计我国北方缺水区总面积达58万平方公里,我国500多个城市中有300多座城市缺水,每年缺水量达58亿立方米。由于人类的破坏使得地球水资源有限,不少大河如美国的科罗拉多河,中国的黄河都已雄风不再,昔日“奔流到海不复回”的壮丽景象已成为历史的记忆了。 3。土地荒漠化。当前世界荒漠化现象仍在加剧。全球现有12亿多人受到荒漠化的直接威胁,其中有1。35亿人在短期内有失去土地的危险。到1996年为止,全球荒漠化的土地已达到3600万平方公里,占到整个地球陆地面积的1/4,相当于俄罗斯、加拿大、中国和美国国土面积的总和,全球爱荒漠化影响的国家有100多个,荒漠化以每年5——7万平方公里的速度扩大,相当于爱尔兰的面积。对于受荒漠化威胁的人们来说,荒漠化意味着他们将失去最基本的生存基础——有生产能力的土地的消失。 后记:人们将面临的危机有很多,如果人类一如既往地破坏环境,那么人类将会灭绝,地球也将会成为宇宙中一个遥远的历史。