(
课件网) LET’S START Unit12 Innovation Lesson 1 Scientific Breakthrough LET’S START What do you think are the most important inventions or discoveries of the 20th century Can you name a few inventors What makes them great premier scientist pioneers of the 20th century to be committed to to be inspired by to be proposed by to improve the quality of human life 致力于 先锋，先驱 由...提出 If you had to choose the single most important discovery of the 20th century, you would have a real problem on your hands. In just 100 years, the world has changed completely. Amazing discoveries were made in medicine, communications and transport, not to mention our knowledge of the world and space. 如果必须在20世纪重大发现中选出最重要的一项，这可是件棘手的事。在仅仅100年中，世界就完全变样了。医学、通信和交通方面都有惊人的发现，更别提我们对世界和太空的认识了。 if引导的虚拟语气，表达与现在事实相反的假设。if引导的从句谓语用一般过去时，主句谓语用would+动词原形 have sth. on one’s hands手头有某事待处理（指困难的事情、问题等） not to mention =let alone更不用说，且不说 熟词生义：knowledge n.知晓，了解 have/has done现在完成时（时态标志词in just 100years 仅仅100年来） adv.彻底地，完全地 PART.01 虚拟语气在if 引导的非真实性条件句中的用法 虚拟条件句 主句 与现在事实相反 与过去事实相反 与将来事实相反 If+主语+ did/were 主语+ would/could/should/might do If+主语+had done 主语＋ would/could/should /might have done 1. If+主语+did/were 2. If+主语+were to do 3. If+主语+should do 主语＋ would do If you had to choose the single most important discovery of the 20th century, you would have a real problem on your hands. In just 100 years, the world has changed completely. Amazing discoveries were made in medicine, communications and transport, not to mention our knowledge of the world and space. 如果必须在20世纪重大发现中选出最重要的一项，这可是件棘手的事。在仅仅100年中，世界就完全变样了。医学、通信和交通方面都有惊人的发现，更别提我们对世界和太空的认识了。 if引导的虚拟语气，表达与现在事实相反的假设。if引导的从句谓语用一般过去时，主句谓语用would+动词原形 have sth. on one’s hands手头有某事待处理（指困难的事情、问题等） not to mention =let alone更不用说，且不说 熟词生义：knowledge n.知晓，了解 have/has done现在完成时（时态标志词in just 100years 仅仅100年来） adv.彻底地，完全地 Medical advances ranged from discovering the causes of diseases under microscopes to staging operations to replace diseased organs with donated munications changed with the introduction of mobile phones, and the way (we correspond) went from writing letters to emailing and sending instant messages. 医学上的进步范围很广，从利用显微镜揭示病因，到施行手术用捐赠的器官做器官移植。移动电话的使用给通信业带来了改变，我们的通信方式从写信变为发电子邮件和发送即时信息。 range from… to…范围从…到… stage operation施行手术 replace A with B用B替换A organ n.器官 ones代指organs 省略了关系词的定语从句，修饰先行词the way 熟词生义：go-went-gone vi.变动，变化 instant me ... ...
