The Australian Environment
Historical Background:
European settlement:
Terrestrial Background:
31.:
because of hard-hoofed animals, e.g.: 32.
Atmospheric pollution 主要是由于含量增多
The effect of atmospheric: 33. .
Use alternative energies like 34. and 35. power
Water pollution:
Lack of water because of 36. and drinking, human consumption and sewage.
Effects of 37. expansion
38. social isolation
移民数目不定
39.
Distribution: over 80% in 40.(coastal cities)
根据最新回忆又多出一个答案: stop water flowing
详细原文破解内容如下:
Good morning , as I start to this course of lecture on the Australian environment, I will give you on the .. the course. There are six areas of concern, then say, topics which I hope to cover. In the first topic, we will look into the process of European settlement. Particularly in terms of intensive farming and grazing they imported, this is called the historical background.
In our second topic, we should look into the landing environment and Terrestrial environment. In these topics, well look at some of major problems that soil faces in Australia. These are usually called by overgrazing with imported animals by sheep and cattle, they are hard hoofed animals. It is a two stages, firstly, the hard hoofed animals removed the vegetation. The top soil ..away or washed away by spring rain water, that is, by erosion. Later on, Australian farmers also worsen this problem through theirthey removed trees and used widely spread irrigation, this action combined bring the salt from deep soil to the surface and, of course, the plants cant survive in salty soil, so the land became infertile. It could be atmosphere environment. By burning fossil fuel such coal and petroleum, we increase carbon dioxide in the air which has been seen by many people the major suspect in the warming of the atmosphere. of course, This also contribute to the pollution of the air particularly around the cities. It would therefore if using solar, wind or water power whatever possible rather fossil fuels.
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