必修三unit3 学习目标: 朗读重点词汇，并把文中划线词汇标注好意思，达到流畅翻理解文本。重点理解斜体的5句话 圈出文章所用的衔接手段。 补充完整思维导图。 完成阅读理解。 The new age of invention 新发明时代 There have been golden ages of invention throughout history. Think of the four great inventions in Ancient China: gunpowder, papermaking, printing and the compass. Then there were the great Western inventions: the steam engine, the telephone and the radio. Thanks to huge advances in computing technology, wearable tech, flexible battery, and virtual reality, these inventions have been changed beyond recognition to date. For instance, gunpowder has been replaced with pure radium to make atom bombs. Recognized/Regarded as the most useful tool, a minor smartphone with gravity-sensor and GPS is as accurate as a compass and can also play VR stream video. These impressive stuffs come from some brilliant and extraordinary figures: chemists, biologists, astronomers and so on. For example, Charles Darwin, best known for his work On the origin of species found the proof of active evolution and passive natural selection by field research. Benjamin Franklin, who helped draft the Declaration of Independence, proved that lightning is produced by electricity through that famous scientific experiment. Many a book has given a detailed account of Franklin’s experiment procedure: Raised the kite with a piece of string tied to it. A metal key was attached to the string. With a faint blue light shooting across the sky and darkening to purple, a flash of lightning hit the kite, and electricity was conducted. More than one research suggests that the story may be fiction instead of fact. Neither the story nor the details of the experiment are entirely true. However, Franklin, along with many other scientists, presently is still capable of inspiring us to conduct experiments, come up with new theories and achieve significant success. Currently, there’s no cure for some common mental diseases. In addition, people have an incredible desire to relieve the press of the sick and the injured. Admittedly, we are a long way from invention like these. But as they say, never say never! 难词以及重点词汇解释 golden ages of invention：n.短语，golden（adj.，金色的；黄金般的；极好的）修饰ages（n.，时代；年龄复数形式），整体表示发明的黄金时代。 the four great inventions：n.短语，the（定冠词），four（数词，四），great（adj.，伟大的；重大的；极好的）修饰inventions（n.，发明复数形式），即四大发明。 the steam engine：n.短语，the（定冠词），steam（n.，蒸汽），engine（n.，发动机；引擎），意为蒸汽机。 the radio：n.短语，the（定冠词），radio（n.，收音机；无线电广播），就是收音机的意思。 huge advances：n.短语，huge（adj.，巨大的）修饰advances（n.，进步；进展复数形式），可译为巨大进步。 pure radium：n.短语，pure（adj.，纯的；纯粹的；纯净的）修饰radium（n.，镭），即纯镭。 tool：n.，工具；手段；器具，例如：A hammer is a useful tool.（锤子是一种有用的工具。） gravity-sensor：n.，重力传感器，由gravity（n ... ...
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