Unit+2+Thinking+out+of+the+box+Extended+Reading 高中英语牛津译林版（2020）选修第三册.docx

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1、X3U2 How the world got eyeglasses?Learning objectives:1. To analyze the structure of this article;2. To know the development of eyeglasses;3. To appreciate the language feature of this article;4. To acquire and apply some important language points.Stepl:The development of eyeglassesAbout 2,000 years

2、 ago,一In the 1280s,.Step2:Analysis of the structure1. Introduction-Para(s).:Main body Para(s).:ConclusionPara(s).:2. Transitional sentence between two paragraphs:Para, 1 &2:Para.3&4: Para.4&5:Para,5&6:Para.6&7:Para.7&8:Para, 8&9:Step3: Problems and Solutions(Match them together)A. Not yetB. Magnifyi

3、ng glassesC. Corrective lensesD. Spectacles with arms that could clip behind the ears1. People suffer from poor vision2. Bad fbcus and not having frames3. Getting lenses to stay comfortably on the face4. An ethical dilemma posed by the development of smart glassedStep4:Deep analysis1. Thisdrove the

4、demand for reading glasses(L26-27). “This” :2. Spectacles were held on the face by tying threads to the frames and loopingthemover the ears(L32-33). them:4. Advantages and disadvantages of smart glasses:3. Find out however, although, unfortunately,event though“ from this article and distinguish betw

5、een main information and minor(次要的)information.Step5: Language appreciation1. What are the greatest.the wheel?(Ll-2)2. If you disagree with.your eyes./Or, if you .(L5-6)3. Considering., you may think that.(LI 1-12) 4. Indeed, reading while. the soup!(L29-30)5. Oh,waityou cant,.enough.(L7)7. The lang

6、uage feature of this article (A. Formal B. InformalC.Vivid6. Even then,the side stems were.(Ouch!).(L41-42) )D. Humorous E. ConversationalStep6:Put them in the right order1. Unfortunately, now that weve tackled the technological problem of helping people seeclearly, we face an ethical dilemma posed

7、by the development of smart glasses, which are wearable computers in essence.Looking like a pair of ordinary glasses, smart glasses make it possible for the wearer to use the Web and make videos o everything they see. However, opponents of smart glasses believe that a device that allows its wearer t

8、o record people without their knowledge, almost anywhere and anytime, is disturbing. Even though we have become used to the marvels of modern technology, we still need topause and think about the potential negative impact of this new invention.2. There was, however, a practical problem to overcome.

9、While the quality of the lenses was improving quickly, getting them to stay on the face was a great challenge. Indeed, reading while eating often meant spectacles in the soup! Spectacles were held on the face by tying threads to the frames and looping them over the ears. Weights were sometimes tied

10、to the ends of the threads to counterbalance the weight of the glasses to keep them from slipping off. Some people used threads or wires to hook their glasses to their hats so that they dangled just in front of the eyes. Others attached them to straps tied around the forehead or threaded them into t

11、heir hair. Still other designs simply perched uneasily on the bridge of the nose. Later models worked a bit better by having the frames slightly pinch the nose. These stayed on the face longer, but they must have been quite uncomfortable.A. Once the technology was available, spectacles caught on qui

12、ckly.B. People made many attempts to overcome this problem some stranger than others.C. Its hard to imagine why it took so long to design spectacles with arm pieces that could clip behind the ears. Step7: Language knowledge(Important phrases and sentences) 1 ,向提出一个问题.迅速流行 2 .仅次于3 .印刷机4 .矫正镜片5 .受到视力不

13、佳的困扰6 . 一块曲面玻璃7 .放大镜8 .想出9 .将镜片嵌入镜框10 .通过不断尝试12 .推动了对的需求13 .将绕在耳朵上14 .抵消的重量 15 .将眼镜钩在帽子上16 .把眼镜和前额的绑带相连17 .不舒服地架在鼻梁上18 .别在耳后19 .在某人不知情的情况下20 .对感激1 .(consider) that many people in the world would suffer from poor vision, you may think that the great minds of history would have quickly some together t

14、o tackle the problem.2 .No one knows who came up with the technology of shaping glass to bring images into better focus, or (mount) lenses in frames that could go in front of your face.3 .Although we dont know to thank, it is pretty much agreed corrective lenses first appeared inItaly in the 1280s.1

15、.1 n the 15th century, the printing press was invented, making books plentiful and relatively (expensive).5 .There was,however,a practical problem(overcome).6 .Like inventing the lenses themselves, coming up with designs that were easy(use) was mostly a matter of trial and error.7 .Unfortunately, no

16、w that we(tackle) the technological problem of helping people see clearly, we face an ethical dilemma(pose)by the development of smart glasses, which are(wear)computers in essence.Step8:Self-assessment(509)1.1 know the structure of this article(109); 2.1 can demonstrate the development of eyeglasses(105);3.1 understand the language feature of this article。O);4.1 can apply some important language points to my essay(lO).5.1 can concentrate on my study throughout the whole lesson.(10)