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

X2U3 Extended Reading How the world got eyeglasses Learning Objectives 1 3 2 4 The structure of this article The development of eyeglasses Language feature Language points The 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 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. Topic Sentence&Transitional Sentence Paras.1&2:_ Paras.2&3:_Paras.3&4:_ Paras.4&5:_Paras.5&6:_ Paras.6&7:_ Paras.7&8:_ Para.8&9:_ If you disagree with this ranking,... Considering that ...poor vision,... No one knows...shaping glass to.... Once the technology was available, spectacles ... People made...overcome this problem, some... It took so long to design spectacles with arm pieces... ...now that we’ve tackled the technological problem... We’ll have to ...see if smart glasses would... Introduction Main body Conclusion Para(s)._:_ Para(s)._:_ Para.9:_ Text Structure 1-2 Eyeglasses are an important breakthrough. 3-8 The invention and development of eyeglasses. All in all, eyeglasses are a great invention. Problems Bad focus and not having frames People suffer from poor vision Getting lenses to stay comfortably on the face An ethical dilemma posed by the development of smart glasses Not yet Magnifying glasses Corrective lenses Spectacles with arms that could clip behind the ears Solutions How many solutions are there to get lenses to stay comfotably on the face according to Para.6? Using threads or wires to hook their glasses to their hats... Tying weights to the ends of the threads to counterbalance ... Tying threads to the frames and looping them over the ears Attaching glasses to straps tied around forehead. Threading them into their hair. Having the frames slightly pinch the nose. Deep a