托福培训学校-环球托福[环球教育旗下品牌]

GMAT写作素材之环保篇

2014-05-29 17:07| 来源:未知

摘要: 本文为考生们带来的GMAT写作素材之环保篇,希望能给考生们的素材积累带来帮助。
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    要想写出出色的GMAT作文,GMAT写作素材的积累必不可少,只有心中有足够的素材,下笔才能流畅,现代人的环保意识越来越强,环保类的话题也出现在GMAT写作中,下面环球教育GMAT培训小编就给考生们带来环保相关的GMAT写作素材,供考生们参考。
环保论的概念
Environmentalism is a concern for the preservation, restoration, or improvement of the natural environment, such as the conservation of natural resources, prevention of pollution, and certain land use actions. It often supports the struggles of indigenous peoples against the spread of globalization to their way of life, which is seen as less harmful to the environment. The study of practical environmentalism is split into two positions: the mainstream “anthropocentric” or hierarchic, and the more radical “ecocentric” or egalitarian. 
技术对环境的影响既明显又细微
The effects of technology on the environment are both obvious and subtle. The more obvious effects include the depletion of nonrenewable natural resources (such as petroleum, coal, ores), and the added pollution of air, water, and land. The more subtle effects include debates over long-term effects (e.g., global warming, deforestation, natural habitat destruction and coastal wetland loss).
Each wave of technology creates a set of waste previously unknown by humans: toxic waste, radioactive waste, electronic waste. One of the main problems is the lack of an effective way to remove these pollutants on a large scale expediently. In nature, organisms “recycle” the wastes of other organisms, for example, plants produce oxygen as a by-product of photosynthesis, oxygen-breathing organisms use oxygen to metabolize food, producing carbon dioxide as a by-product, which plants use in a process to make sugar, with oxygen as a waste in the first place. No such mechanism exists for the removal of technological wastes.
Humanity at the moment may be compared to a colony of bacteria in a Petri dish with a constant food supply: with no way to remove the wastes of their metabolism, the bacteria eventually poison themselves. 
    以上就是环球教育给考生们带来的GMAT写作素材之环保篇,希望能给考生们的素材积累带来帮助。考生们也可以开阔视野,多积累各方面的GMAT写作素材,以备不时之需。