Unit 2 Thinking out of the box Extended Reading 课件-2023-2024学年高中英语牛津译林版（2020）选修第三册

What do you think are the greatest breakthroughs humans have made since the invention of the wheel? Give your reasons. The ranking of the greatest contemporary breakthroughs: Modern electronics The printing press entrepreneur a panel of experts What do you want to know next? ? ? ? ? Let’s draw the mind map of the article: Let’s draw the mind map of the article: P3-8: the invention and development Introduction Body Conclusion How the world got eyeglasses P1-2. Eyeglasses are a great breakthrough. P3-8: the invention and development P3:before spectacles: magnifying glasses P4: The first appearance of corrective lenses P5: the popularity of spectacles P6-7: problem and solutions to make them comfortable P8: the ethical dilemma posed by smart glasses P9: All in all, eyeglasses are a great invention. The invention & development of eyeglasses About 2,000 years ago In the 1280s 3.____________________ 4.____________________ These days Now 1. __________________________________ 2. __________________________________ 5.___________________________________ The demand for reading glasses increased Spectacles with arm pieces that could clip behind the ears were invented 6.___________________________________ People began making magnifying glasses. Corrective lenses first appeared in Italy. In the 15th century In the 18th century Technology has made spectacles comfortable. We are developing smart glasses. Which of the inventions do you think are the most important milestones during this process? Why? The milestones in the development of eyeglasses: P3:People suffer from poor vision P4:Bad focus and not having frames P5-7: Getting lenses to stay comfortably on the face P8: With the breakthrough of technology P5-7: Getting lenses to stay comfortably on the face Magnifying glasses Corrective lenses Spectacles with arm pieces Smart glasses How many solutions are there to get lenses to stay comfortably on the face according to Para.6? Using threads or wires to hook their gl