一、英汉互译
1. oxidizing agent——氧化剂
2. activated sludge——活性污泥
3. water purification——水净化
4. protozoa——原生动物
5. nitrogen dioxide——二氧化氮
6. phosphate——磷酸盐
7. the dew point——露点 8. food additives——食品添加剂
9. chemical plant——化工厂 air pollutant——一次大气污染物
analysis——定性分析 problem——环境问题
combustion——不完全燃烧 oxidants——光化学氧化剂
solid——悬浮固体 16.气布比——air to cloth ratio
17.一氧化碳——carbon monoxide 18.酵母——yeast
19.紫外线——ultraviolet light 20.反向渗透——reverse osmosis 21.水资源——water resource 22.有机物质——organic matter
23.地表水——surface water 24.引风机——draft fan
25.生物鉴定——bioassay 26.副产品——by-products
27.环境容量——environmental capacity 28.供水，给水——water supply
29.吸附——adsorption 30.环境污染——environmental pollution
二、英译汉
1.Protection of public health, the original purpose of pollution
control, continues to be the primary objective in many areas. However, preservation of water resources, protection of fishing areas, and maintenance of recreational waters are additional concerns today.
污染控制的最初目的是保护公众的健康，在许多地方这仍然是主要目的。
然而，目前保护水资源、保护渔区和维护娱乐水域也是关注的方面。
2.Pollution can be defined as an undesirable change in the physical,
chemical, or biological characteristics of the air, water, or land that can harmfully affect the health, survival, or activities of humans or other living organisms.污染：可以定义为空气、水或土壤的物理化学或生物特性发生恶化以至于对人类或生物有机体的健康、生存或活性造成了危害。 Environment can be defined as(1) the circumstance of conditions that surround an organism or group of organisms, or (2) the complex of social or cultural conditions that affect an individual
or community.环境可以定义为：（1）一个生物个体或生物群体周围的状况或条件；（2）影响个体或群体的复杂的社会或文化条件。
3.Fabric filters usually provide very high collection efficiencies,
exceeding %, at pressure drops usually ranging from 4 to 6 inches of water. The amount of filter area required is often based o an air-to-cloth ratio of to cfm of gas/ft of cloth.
布袋过滤器经常提供超过%的高捕集效率，压力降一般在4-6英寸水柱。
所需要的滤料面积通常是根据气布比为气体/平方英尺布来考虑的。
4.Sulfur and nitrogen oxides react in the atmosphere to form acidic
compounds that attack metal surfaces, a problem that has been particularly acute for the communications, switchgear, and computer industries.
大气中的硫和氮的氧化物经反应后形成酸性化合物，这些化合物腐蚀金属
表面，这个问题通讯设备、电力设施和计算机工业方面已经很严重。
三、选择题
1. The objective of this book is to introduce engineering and science
students to the interdisciplinary study of environmental problems:
their causes, why they are of concern, and how we can control them.
（ C ）
A. objective
B. book
C. environmental problems
D. students
2. Thus, a pollutant species may present a toxicological hazard to
plants or animals. It may also cause contamination of resources
(such as air, water, and soil) so that they cannot be utilized for
other purposes.（ C ）
A. plants
B. animals
C. resources
D.
pollutant species
3. However, sewage may also contain pathogens from the excreta of
people with infectious diseases that can be transmitted by
contaminated water. （ D ）
A. sewage
B. pathogens
C. people
D.
infectious diseases
