Unit 4 Everyday economics Developing ideas课件 2025-2026学年高中英语外研版（2019）选择性必修第四册

该高中英语课件围绕“共享经济”主题，通过图片观察（找出共享物品）、Leo旅行笔记对比（2008与2018年旅行差异）导入，从具体共享现象过渡到传统与现代共享认知，再聚焦共享经济主题，辅以快速阅读找主题、段落大意题等支架，帮助学生构建知识脉络。 其亮点在于融合语言能力（阅读分析主题、讨论表达观点）、思维品质（分析共享经济利弊，培养批判性思维）、学习能力（小组探究未来共享经济），如通过旅行笔记对比感知共享影响，结构匹配题梳理逻辑，助力学生提升综合素养，教师可借助系统活动设计高效开展教学。

Developing ideas Unit 4 Everyday economics Look at the pictures and find out what they have in common. They are shared items. Read Leo’s travel notes and answer the questions. 01 1. What are the differences between Leo’s two trips? In 2008, Leo took a taxi to the hostel from the airport and it cost him a fortune! In 2018, the trip from the airport to the city centre was much cheaper because it was a shared ride. In 2008, Leo stayed in a hostel, while in 2018 he stayed in a shared flat. In 2008, Leo didn’t know how to get to Houhai, while in 2018 he had a nice trip around Houhai by riding a shared bicycle. In 2008, Leo could only have a pizza in the hostel alone and he didn’t know where to have good Chinese food. In 2018, he shared a delicious meal of Chinese cuisine with some other backpackers at Chef Cui’s restaurant. In 2008, Leo had a battery problem with his camera. He didn’t have this problem in 2018, because he could use the shared power banks. Look at the title of the passage and talk about your understanding of it. 02 Have sth in common Tell sb sth Use/experience sth with sb what how why Skim the passage and summarize the structure. The topic: the sharing economy Fast reading 1. What is the traditional perception(认知) of sharing? The traditional perception of sharing is that it is good to share, emphasized by parents and teachers from a young age. 2. How does modern society view sharing in terms of emotional bonding? Modern society views sharing as beneficial for establishing positive emotional bonding. Para. 1 1 We’ve been told since we were toddlers that “It’s good to share”. Parents and teachers keep reminding us to share toys, snacks, books, happy memories, and sometimes even sorrows with others. When we grow up, we share photos, life stories and opinions with people around us and with those we don’t know via social media. Taking it as an object of study, psychologists have published various papers starting that the behaviour of sharing is beneficial to setting up positive emotional bonding. For the main idea 1. How pervasive(无处不在的) is sharing in today's society? Sharing has expanded to almost every aspect of our lives. 2. What environmental benefits does sharing bring? Sharing contributes to reducing the number of polluting vehicles on the road, thereby benefiting the environment. Para. 2 2 Today, the action of sharing takes on extra meaning. It’s not just about sharing sweets or frustration; it has expanded to almost every aspect of our lives --- the whole world seems to be into sharing. We are using technology to reduce the money that we spend on goods and services, or to make money out of those that we don’t use ourselves all of the time. These vary from car shares to home shares, and even to pet shares. The sharing economy is taking off in all sorts of areas. It is creating new ways of thinking and is providing services to people when and where they want them. For the main idea 1. What is the response to the growing demand for quality goods and services? The response to the increasing demand is the emergence and growth of the sharing economy. 2. What concerns arise regarding personal data in the context of sharing? Sharing raises concerns about the collection of personal data, which includes sensitive information like names, locations, bank details, and preferences. Para. 3 3 This wealth of ways of sharing is a response to our increasing demand for quality goods and services at competitive prices, all delivered at the click of a button. Whether it’s an online shop where we can hire designer clothes at rock-bottom prices, or a platform from which we can rent out our flats for a couple of days, it’s out there. Whether we’re a lender or a borrower, it’s a win-win situation; everyone makes or saves money. We also make connections and sometimes even make new friends. What’s more, sharing encourages us to reuse items. Thereby cutting down on waster. And set-ups such as bike and car sharing do a further favour for the environment by reducing the number of polluting vehicles on the road. For the main idea 1. What challenges does the sharing economy face? The sharing economy faces challenges such as issues related to economic activity worldwide. Para. 4 4 But the sharing economy is not without its problems. As is often the case all over the world with new areas of economic activity, the sharing economy is developing faster than existing regulations or ongoing supervision. Some companies are taking unfair advantage of this situation to expand their share of the market, often at the expense of more traditional and established companies. In addition, the sharing economy is subject to abuse of trust. Some people have experienced damage to their properties whilst renting out their homes, and others have found themselves victims of theft or attack while sharing rides. Finally, personal data, the heart of the sharing economy, is not yet secure. Sharing platforms collect personal information about almost every part of our lives, including our names, locations, bank information, and individual preferences for goods and services. Yet, the technology to prevent such information from leaking or being stolen still needs improvement, and the awareness of potential risks is low among both service providers and users. For the main idea 2. What problems will arise when the sharing economy develops too quickly? The rapid development of the sharing economy will result in the following three problems: ①Existing regulations and ongoing oversight are not keeping pace. ②It can be affected by abuse of trust. ③Personal data, the heart of the sharing economy, is not secure. Para. 4 4 But the sharing economy is not without its problems. As is often the case all over the world with new areas of economic activity, the sharing economy is developing faster than existing regulations or ongoing supervision. Some companies are taking unfair advantage of this situation to expand their share of the market, often at the expense of more traditional and established companies. In addition, the sharing economy is subject to abuse of trust. Some people have experienced damage to their properties whilst renting out their homes, and others have found themselves victims of theft or attack while sharing rides. Finally, personal data, the heart of the sharing economy, is not yet secure. Sharing platforms collect personal information about almost every part of our lives, including our names, locations, bank information, and individual preferences for goods and services. Yet, the technology to prevent such information from leaking or being stolen still needs improvement, and the awareness of potential risks is low among both service providers and users. For the main idea 1. What is the projected future of the sharing economy? The future of the sharing economy is seen as increasingly integral to our daily lives. 2. How is sharing transforming society and its services? Sharing is transforming society by creating new ways of thinking and providing services tailored to people's needs and preferences, available when and where they want them. Para. 5 5 Nonetheless, what is in no doubt is that the sharing economy is increasingly relevant to our daily lives as well as to the global economy. It is expanding at such a rate that we can only imagine what it will comprise in the future. What will we be sharing next? Who will be sharing and how? And the most interesting question of all --- what type of society will all this sharing take us to? For the main idea Match the paragraphs to their functions and give your reasons. 03 To highlight the key benefits of the sharing economy. To explain and elaborate on the sharing economy. To lead the topic from sharing in childhood to sharing in economic activities. To illustrate various drawbacks of the sharing economy. To predict the future of the sharing economy. □ □ □ □ □ 3 2 1 4 5 How does the author organize the passage? The topic: the sharing economy Para 1 Para 2 Para 3 Para 4 Para 5 Introduction Conclusion Main body What is the genre of the passage? argumentation For the structure Part 1 Part 2 Part 3 Think about the structure of the passage and complete the diagram. 04 It meets people’s increasing demand for 1 _____________________________________. It allows people to make or save money. It helps people 2 ___________________ and even 3 __________________________. It favors the environment by 4__________________________________ and 5 ___________________________. The sharing economy Benefits Problems The sharing economy is developing faster than 6 ___________________________________. The sharing economy is subject to 7 _________. Personal information about 8 _________________________ is 9 _____________ in the sharing economy. quality goods and services at competitive prices make connections make new friends encouraging people to reuse items reducing pollution existing regulations or ongoing supervision abuse of trust almost every part of our lives not yet secure 1. What is the author’s attitude towards the sharing economy? The author acknowledges the benefits of the sharing economy, but he also takes concern about the problems of it. The author is also curious about the future of the sharing economy. 2. What do you think are other benefits and problems of the sharing economy? How could we address the potential problems. Think & Share Talk with your partner. Work in groups. Talk about the future of the sharing economy. 05 1. Think about what will happen in the next 20 years as the world's eceonomy becomes ever more global and digital. Consider the following: What will people be sharing next? How will they be sharing these things? What benefits will people get from sharing these things? What are the potential problems? 2. Share your ideas with your group. 3. Present your group’s ideas to the class. $