【语料库】
1. Our living environment is becoming worse and worse. 我们的生存环境变得越来越糟糕。
2. Air pollution is extremely serious, especially in cities with heavy industry. 空气污染相当严重，一些重工业城市尤为严重。
3. Water pollution has long been a major concern among the environmental issues. 长期以来水污染一直都是环境问题中备受关注的。
4. Our protective ozone layer above the earth has been thinned. 我们地球上方具有保护作用的臭氧层变得稀薄了。
【加油站】
1. I think taking care of our environment is everybody's duty. 我认为保护环境是每个人的职责。
2. Something must be done at once. 必须立即采取行动。
3. We must try to plant more trees and stop anyone from cutting trees down and make more people know how important it is to protect our environment. 我们必须尽力多栽树，阻止任何人伐树，使更多人懂得保护环境是何等重要。
4. Everyone should do something to protect our living environment. 每个人都应该为保护我们的生存环境而努力。
【QQ聊天室】
Dave: The Olympic Games will be held in 2008 in Beijing, but the air in Beijing is seriously polluted. Look! I can even see the floating dirt over there.
Lily: Yes, air pollution is extremely serious, especially in cities with heavy industry.
Dave: Aren't there any protecting measures adopted by government for the sake of people's health?
Lily: Yes, there are. But some of them are not so effective. Some of them are so expensive that manufacturers （制造商） can't afford.
Dave: That's it. Then why not consider reducing some heavy industries?
Lily: Pretty hard! China is a developing country and needs heavy industries to increase its Gross National Product （国民生产总值）.
Dave: How about transferring some to suburbs?
Lily: That's a good idea! There is a low population density （密度）in suburbs so that the harm to people is also slighter. However, it is really inconvenient.
