空气污染 水污染 大气污染的介绍(英文)ppt课件.ppt

Our Country’s Environmental Problems
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Ecological environment 生态环境
Desertification 荒漠化Salinization 盐碱化
Offscum 废渣
Mining 采矿业
Biological chain 生物链
Biodiversity 生物多样性
Wastewater 污水
World Health Organization
世界卫生组织
underground water 地下水
drinking water饮用水
Water body 水体
Contaminate 污染
Rhine 莱茵河
Greenhouse effect温室效应
Ground level ozone地面臭氧
particulate matter微粒物质
biological materials生物材料
respiratory disease呼吸疾病
stationary sources固定污染源
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Focal 焦点的
Quota 定额
Coordinate使协调
Emission 发射
Afforestation 造林
Adsorption 吸附
Photosynthesis 光合作用
Phosphorus 磷
Filtration 过滤
Biodegradable 能被细菌分解的
Trash 垃圾
Consumption 消耗
Rectification 改正
global warming全球变暖
gaseous system气态系统
ozone depletion 臭氧枯竭
Ecosystem生态系统
Pollutants污染物
photochemical smog光化雾
Countermeasure措施
Propaganda 宣传
Ascendant 优势
Detergent 洗涤剂
Evaporative蒸发的
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Waste Pollution
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WATER POLLUTION
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The four basic natural resources are water, air, land and energy. We need water for multiple uses and a certain quality is required. Its use leads to the generation of wastewater that can cause an impact on the environment.
水 ，空气，土地和能源是四个基本的自然资源。水的用途多种多样，而且要求其达到一定的标准。但是，由于人类使用而产生的污水造成了对环境的影响。
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Water pollution occurs when a body of water is adversely affected due to the addition of large amounts of materials to the water.
水污染是水体中添加大量其他物质而造成的负面影响
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Drought
Pollution
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Approximately 300 million nationwide have no access to clean water. Furthermore, over 700 million Chinese drink fetid water below World Health Organization standards. Almost 90% of underground water in cities is affected by pollution and 80% of China’s rivers fail to meet standards for fishing. Almost all of the nation's rivers are considered polluted to some degree and half of the population lacks access to clean drinking water. Ninety percent of urban water bodies are severely polluted.
全国约有3亿人使用不上干净的水，此外，有超过7亿中国人饮用的水没能达到世界卫生组织的标准，几乎 90%的城市地下水受