1-3技术应用的两面性.ppt
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技术应用的两面性
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案例分析:决定胎儿性别的技术
讨论:你对“决定胎儿性别的技术”是支持还是反对?
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技术是人类改造世界的手段,本身并无正面、负面之分。
技术应用具有两面性:既会给人类带来财富、带来经济效益和社会效益,也可能给人类造成危害。
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技术应用的两面性:
技术应用推动社会发展
技术应用造成的负面影响
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技术应用推动社会发展
纳米颗粒可以钻进人的大脑、血管及各种器官,这正是由于纳米微粒十分微小因而可以无孔不入的特性所决定的。
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在人类发展的历史长河中,技术的发明和应用给人类不断带来进步、财富,有力的推动了社会发展,是我们的生活变得日益丰富多彩。
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手机给人们带来了什么?
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国外环保机构研究表明,这些被淘汰的手机可以被列入有毒废弃物之列。旧手机的一块电池里的镉就能够严重污染6万升的水,而这些水可以装满3个奥运会的标准游泳池。新手机电池虽然正在淘汰镉的使用,但里面仍有许多有毒物质,比如铅,它会对人的免疫系统、分泌系统以及中枢神经系统造成严重损害,会危害儿童的脑神经,而许多手机配线板上的部件就是用铅来焊接的。所以,手机生产企业应当考虑到手机废弃之后的问题。
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技术应用造成负面影响
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技术应用造成的负面影响
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原子弹试验
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第一颗原子弹“迈克”
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