资料下载 学英语,练听力,上听力课堂! 注册 登录
> 英语六级 > 英语六级资料 >  内容

六级考试快速阅读实战练习(2)

  • 软件大小:26KB
  • 资料等级:☆☆☆☆☆
  • 更新时间:2009-10-13
  • 文件类型: 格式
  • 下载次数:2462
  • 资料来源:互联网
  • 资料性质:免费资料
  • 免费下载地址
资料地址:
资料简介

本实战练习能迅速帮助广大考生提高阅读水平,考生可在快乐阅读中提升应试水平,在应试备考中享受快乐阅读技巧篇,强化提高篇,精彩时文、美文导读篇,全真模拟冲刺篇。集知识性、趣味性、可读性于一体,篇篇精彩。富指导性、实用性、实战性...

The world was stunned by the news in the summer of 1995, when a British embryologist named Ian Wilmut, and his research team, successfully cloned Dolly the sheep using the technique of nuclear transfer. Replacing the DNA of one sheep’s egg with the DNA of another sheep’s the team created Dolly. Plants and lower forms of animal life have been successfully cloned for many years, but before Wilmut's announcement, it had been thought by many to be unlikely that such a procedure could be performed on larger mammals and life forms. The world media was immediately filled with heated discussions about the ethical implications of cloning.

        
        Some of the most powerful people in the world have felt compelled to act against this threat. President Clinton swiftly imposed a ban on federal funding for human-cloning research. Bills were put in the works in both houses of Congress to outlaw human cloning because it was deemed as a fundamentally evil thing that must be stopped. But what, exactly, is bad about it? From an ethical point of view, it is difficult to see exactly what is wrong with cloning human beings. The people who are afraid of cloning tend to assume that someone would, for example, break into Napoleon's Tomb, steal some DNA and make a bunch of emperors. In reality, infertile people who use donated sperm, eggs, or embryos would probably use cloning. Do the potential harms outweigh

相关资料
网站推荐

英语翻译英语应急口语8000句听歌学英语英语学习方法

下载说明:
为了达到优质的下载速度,推荐使用迅雷软件下载本站资料。
如果您发现该软件不能下载,请在线挑错,谢谢!
未经本站明确许可,任何网站不得非法盗链及抄袭本站资源;如引用页面,请注明来自本站,谢谢您的支持!
  • 频道推荐
  • |
  • 全站推荐
  • 推荐下载
  • 网站推荐