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GRE 写作中论述科技发展的段落

论文作者：留学生论文论文属性：短文 essay登出时间：2010-05-29编辑：vshellyn点击率：2118

论文字数：760论文编号：org201005291505589716语种：中文 Chinese地区：中国价格：免费论文

关键词：写作论述科技发展

科技发展对人类的影响：
The place of technology in modern society is a subject ofcontinuing controversy. Key issue includes not only the impact oftechnology on quotidian life but also the need to control thedevelopment and uses of technological innovations so that theybenefit all aspects of community.

正面:
Many technological developments during thelast century have helped reduce human suffering. Consider, forinstance, technology that enables computers to map Earth’sgeographical features from outer space. This technology allows usto locate lands that can be cultivated for feeding malnourishedpeople in third-world countries. And, few would disagree thathumanity is the beneficiary of the myriad of 20th centuryinnovations in medicine and medical technology—from prostheses andorgan transplants to vaccines and lasers.

20th century technological innovation has enhanced the overallstandard of comfort level of developed nations. The advent of steelproduction and assembly-line manufacturing created countless jobs,stimulated economic growth, and supplied a plethora of innovativeconveniences. More recently, computers have helped free up out timeby performing repetitive tasks: have aided in in the design ofsafer and more attractive bridges, buildings, and vehicles; andhave made possible universal access to information.

反面:
For every new technological breakthrough thathelps reduce human suffering is another that serves primarily toadd to that suffering. For example, while some might argue thatphysics researchers who harnessed the power of the atom haveprovided us with an alternative source of energy and invaluable“peace-keepers”, this argument flies in the face of hundreds ofthousands of innocent people murdered and maimed by atomic blasts,and by nuclear meltdowns. And in fulfilling the promise of “betterliving through chemistry” research has given us chemical weaponsfor human slaughter. In short, so-called “advance” thatscientific research has brought about often amount to net lossesfor humanity.www.51lunwen.org

Technological development has already brought about environmentalproblems. Many things these days cause pollution such as cars, airconditioners, refrigerators, factories, etc. All these thingstogether can cause a pollution problem in the society today.Refrigerators and air conditioners are a problem to the zonebecause of the liquid called Freon--when these liquids are releasedfrom damaging the machine, it releases a gas that breaks down thezone layers. In addition, cars also can cause a lot of pollutionbecause of the carbon monoxide it produces. This would cause theair to be bad, cause global warming, and would also cause acidrain.
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