英语牛津译林版选择性必修二 精品教案 Unit 4 Welcome to the

1、英语（选择性必修第二册） Unit 4 Living with technology Welcome to the unit & Reading (I) I. Learning objectives By the end of the lesson, students will be able to: 1. grasp the topic and the general idea of the lesson; 2. understand some important details; 3. form their own opinions based on the text. II. Key c

2、ompetence focus 1. Learn how to apply reading strategies to reading tasks. 2. Learn how to get a deep understanding of the reading material. III. Predicted area of difficulty Use specific example to express ones own idea. IV. Teaching procedures Step 1 Welcome to the Unit Brainstorming: stimulating

3、reading interest 1. T greets the class. T: Class begins, boys and girls! Good morning/afternoon! T: Open your book at page 43. Lets have a look at the picture on this page. What do you see on it? T: Yes. A handsome young man is enjoying VR and a robot is standing on the beach. Now lets go through Bi

4、ll Gates words under the topic “Living with technology”. It reads “The advance of technology is based on making it fit in so that you dont really even notice it, so its part of everyday life.” What does it mean? T: Right. What Gates says is about the relationship between technology and life. He emph

5、asizes that technology sneaks into our lives and brings us benefits. T: Now. You have known something about the topic of the unit: How technology is woven into our life. 2. T Now watch a video carefully and fill in the blanks. T: Watch the video again and answer the three questions on page 43. Answe

6、r 1 the moon, computers Answers 2 1. In the popular science fiction TV series, Star Trek, the people in the future use a device called a “communicator”, which looks similar to the cell phones of today. 2. Yes, I agree with Jules Vernes statement. Looking around today, many things that people in the

7、past believed could never happen have become a part of our daily lives. No, I dont agree with Jules Vernes statement because even though humans may feel capable of achieving the impossible, there are some dreams that are beyond our capabilities. 3. In the future, I think our hands will be implanted

8、with sensors to become scanners themselves. Using our hands as scanners would make it more convenient to identify ourselves and pay for items. Our hands could even be used to exchange digital business cards or any other information through a handshake. Sophisticated scanners with sensors created for

9、 professionals, such as a doctors hand, would mean a patient could be diagnosed in an easier way. 【设计意图：由43页上的图片、Bill Gates的话以及译林所提供的短视频让学生对本单元主 题有个概念，并引发学生的对本单元学习的兴趣。】 Step 2 A1 Reading for the structure of the text T: Would you please have a glimpse of the pictures on pages 44 and 45? 1 T: What do

10、 you know about artificial intelligence? How is the author likely to organize the information on artificial intelligence? (No fixed answers available. Any imaginative answers will be acceptable.) T: Please read through the whole text and complete the chart on P46, using full sentences to conclude ea

11、ch paragraph. Answer: Para. 2: AI is a branch of computer science that aims to create intelligent machines imitating the complex networks of human brain. Para. 3: AI has developed over a long time and had some major breakthroughs. Para. 4: AI is being applied in various fields, transforming the way

12、we live. Para. 5: The development of AI has also caused concerns and fears. Para. 6: We need to make sure that we will not fall victim to AI. T: Have you got another way to conclude each paragraph? I have got a more concise way to express them. Lets complete the following chart with some phrases to

13、conclude each paragraph. Para. 1 Introduction to AI Para. 2 _ Para. 3 _ Para. 4 _ Para. 5 _ Para. 6 _ Answers: Para. 2. Concept Para. 3. Origin and development Para. 4. Application Para. 5. Concern Para. 6. Conclusion 【设计意图：通过完成练习A1帮助学生整体把握课文结构，培养学生快速阅读以获取主干 信息的能力，也为掌握本单元的学习策略（理解说明文的文章结构）埋下伏笔。此处用 了两

14、种总结方式，第一种是完整句子，总结细致一点。第二种是短语，总结更为抽象、 概括。】 Step 3 A2 Reading for the detailed information T: Now you have got the general idea of the text. Please go through the questions in A2. 1. What is deep-learning AI capable of doing? Answers: 1. By learning from the results of its previous actions. 2. What ev

15、ents were considered as major breakthroughs in AI? 2. Deep Blue beat the world chess champion Garry Kasparove in 1997, and AlphaGo defeated Ke Jie, arguably the best human Go player, in 2017. 3. What are ordinary people using AI to do? 3. To get instant translations of text in foreign languages. 4.

16、What are we getting closer to according to the author? 4. We are getting closer to the dividing line between humans and machines. 【设计意图：通过A2练习促使学生再次深入课文，此项活动旨在帮助学生获取文章重要的 细节信息，培养关注重要细节的习惯。】 Step 4 A3 Reading for Inference T: We have read through the whole text and varieties of ideas may appear in ou

17、r mind. Certainly there are some arguments, some of which have been listed in A3. 1. What is the authors attitude to artificial intelligence? 1. Answers: The author is not only excited but also cautious about AI. He uses the example of having a robot 2 do all the work and says “How cool that would b

18、e!” He also explains how AI could benefit us by listing various applications of AI, such as health care and machine translation. However, while looking forward to its potentials, he is clearly concerned about the possible dangers of AI. He asks a series of questions about the future of AI and quotes

19、 Stephen Hawking to show the potential dangers. In the conclusion the author also warns, “We need to make sure that we will not fall victim to AI” 2. In lines 44-46, Stephen Hawking is quoted as saying, “The development of full artificial intelligence could spell the end of the human race.” Do you a

20、gree with him? Why or why not? 2. No. I dont agree with Stephen Hawking. I think that scientists fully understand the concerns about AI, and they will surely be careful about developing it. Even if we are able to create true artificial intelligence, we will know how to control it. According to the T

21、hree Laws of Robotics, put forward by science fiction author Issa Asimov, robots may not injure human beings or allow them to be harmed, they must obey the orders given by human beings except where such orders conflict with the First Law, and they must protect their own existence if that does not co

22、nflict with the First or Second Law. Yes. I agree with Stephen Hawking. With the development of full artificial intelligence, machines may become so intelligent that human beings could no longer control them. If super-intelligent that human beings could think and act completely on their own, it rema

23、ins to be seen how they would treat human beings. It would be extremely dangerous if they decide that humans are their enemies. So I think we need to be very careful with full artificial intelligence, and it is important that we consider possible dangers before it is too late. 3. What do you think i

24、ntelligent machines will be capable of doing in the future? 3. Intelligent machines will certainly have a lot of influence on our lives in the future. For example, we might all have an AI machine in our homes which can tell us whether we have a medical problem and if we need to go to hospital. It might even take the place of the human doctor and treat us at home or in hospital. I think an AI machine will look after our homes for us: it will be able to tell when we are running low o