GRE考试写作素材汇总（科技类）
二、科技类1 带来landfill: outdated devices, discarded chemicals, plastic packaging
2 带来out of work: automation contribute to out of work; the development of computers and transistors and the accompanying trend toward miniaturization
3 坏处：automobile exhausts, pesticides such as DDT threaten the food chain, mineral wastes pollute reservoirs of groundwater
4 好处：telecomuniting: because of the side effect relatively inferior, improve productivity, develop quantity management, reduce labor resourcefulness
5 双面性：as medicine both have side effect; however, people could not reject to receive them with more benefits
6 事例：国防军备，基因治疗疾病，机器人的工业用途，全球化；事业，个人隐私，伦理，社会不平等，文化落后，文化殖民，温室效应，饮水质量数量，灌溉用水，工业用水，发电，渔业，化学泄漏，核泄漏导致死亡，疾病
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