Unit 3 The world online Reading 课件-2023-2024学年高中英语牛津译林版（2020）必修第三册

The Internet: a world without frontiers Unit 3 Reading The first email was sent in 1971 by Ray Tomlinson. It was a test message to himself. He wanted to see whether he could send a message from one computer to another. He chose the "@" sign to separate the username from the name of his machine. Lead in The first webcam was created by computer scientists at the University of Cambridge in 1991. What did it film? A coffee pot outside the office. These scientists used the webcam to see from their desks whether the pot was empty to avoid wasted trips for coffee. Lead in Emojis, small digital images used to express ideas or feelings in electronic communication, were created in 1999 in Japan. The creator was inspired by Japanese comics, street signs and Chinese characters. Soon emojis took off throughout the world. Oxford Dictionaries selected , the "Face with Tears of Joy" emoji, as the Word of the Year 2015. Lead in Which of the above inventions do you use most frequently? Why? Lead in Guidance & Exploration Obviously, the Internet brings about changes in our lives. Inventions like the emojis, the webcams, the emails allow us to communicate with people from different countries without difficulty, which makes the world without frontiers. Look at the title and the picture. Can you predict what may be discussed (the reasons why the Internet is a world without frontiers, as well as its advantages)? 6 感谢您使用我们的PPT模板，请在此输入您需要的文字内容 Expository writing(说明文) Narration (记叙文) C. Argumentation （议论文） What is the genre(体裁) of this writing? thesis statement（论点）? The genre Task 1 Internet: a world without frontiers(边界；边缘) Now please go through the passage, identify the genre(type of the literature) and underline the topic sentences for each paragraph. 7 Fast reading Read for the structure Introduction Advantage 1 Advantage 2 Advantage 3 Conclusion Main body Main body Paras 2–4: The Internet has many advantages. Introduction Para. 1: We can ___________ __________________online. Conclusion Para 5: We should use the Internet ___________ ________________. Advantage 1: Advantage 2: Advantage 3: achieve almost anything E-commerce has made our lives unbelievably convenient The Internet helps us establish and maintain social ties. properly and responsibly The structure Task 2 We have quick and easy access to a huge amount of information online. Advantages Supporting details Advantage 1 Having access to (1) ___________________information Gathering information quickly and easily Advantage 2 (2) ____________________________ Doing shopping quickly and easily Ordering a taxi with an app Making travel arrangements (3) _______________________________ on the smartphone Advantage 3 Keeping in contact with loved ones Finding (4) _________________ Discovering communities who (5) ___________________ a huge amount of Having food delivered to you Paying for almost everything long-lost friends share our hobbies Task 3 The details 1 5 4 2 3 Aspects Access to information 6 7 Food Shopping Travel arrangements Transportation Payments Social life Compare the changes before and after the invention of the Internet We can talk from these aspects Discussion Discussion before after access to information slow and inconvenient food go to the restaurant to have a meal shopping compare styles and prices quickly and easily transportation travel arrangements go to the travel agency to make and book travel plans payments pay using cash or cheques social life physical distance ... for everyone. Questions How does the author develop the article to show the advantages of the Internet? By giving supporting e________ and making c__________. examples comparisons Questions Why does the author make such comparisons? Because the author wants to show the_____________ of the Internet more clearly and make his arguments more ____________________________. advantages convincing/persuasive Task 4 The details Read para.5, then answer the following question: What is the author’s attitude towards the Internet? A. Subjective B. Objective C. Uncaring D. Doubtful Thank you! 16 Task 5 The details How do you understand the title “The Internet: a world without frontiers”? The Internet is truly a world without frontiers only if we use it properly and responsibly to make it a place of dicovery, wonder and inspiration for everyone. However, the Internet also has its problems. Every coin has two sides. The Internet is a double-edged sword (双刃剑 ). Discussion List some problems of the Internet. Personal information may be stolen. Addiction to the Internet may lead to social isolation and depression. Internet viruses can infect and damage our computers and phones. … The author also mentions that the Internet has its problems. Can you list some of them? Here I want to introduce two terms related to Internet problems, troll and cyberbully. (stir up, cause) 19 Cyberbully on the Internet A girl posted her happiness online, but received many insults and blames because of her pink hair. Unfortunately, due to the stress and dpression caused by cyberbully, she suicided. The author also mentions that the Internet has its problems. Can you list some of them? Here I want to introduce two terms related to Internet problems, troll and cyberbully. (stir up, cause) 20 Cyberbully on the Internet The author also mentions that the Internet has its problems. Can you list some of them? Here I want to introduce two terms related to Internet problems, troll and cyberbully. (stir up, cause) 21 How can we use the Internet properly and responsibly? Protect our privacy and do not easily trust some strangers on the Internet. Keep under control the time we spend on the Internet. Never browse websites which could present potential danger. Be aware of signs that warn us of dangers and viruses. Be polite and do not spread incorrect or illegal information on the Internet. Say no and cut off contact. … Personal information may be stolen. Addiction to the Internet may lead to social isolation and depression. Internet viruses can infect and damage our computers and phones. There may be cyberbully. … The author also mentions that the Internet has its problems. Can you list some of them? Here I want to introduce two terms related to Internet problems, troll and cyberbully. (stir up, cause) 22 I hope we will use the Net to cross barriers and connect cultures. -- Tim Berners-Lee The Internet is truly a world without frontiers only if we use the Internet properly and responsibly to make it a place of discovery, wonder and inspiration for everyone. The author also mentions that the Internet has its problems. Can you list some of them? Here I want to introduce two terms related to Internet problems, troll and cyberbully. (stir up, cause) 23 Thank you! 24 The topic sentences Para. 1 Para. 5 Para. 4 Para. 3 Para. 2 We can achieve almost anything online… One of the greatest advantages of the Internet lies in the quick and easy access to a huge amount of information. The Internet has also made our lives unbelievably convenient, with all sorts of goods and services provided by electronic commerce, more commonly known as e-commerce. Above all else, the Internet helps us establish and maintain social ties. However, while the Internet brings many valuable advantages, being connected has its problems. Task 2 Introduction Main body Conclusion 25 Task 4 The details Read para.1, then answer the following questions: 1. Why does the author say “the Internet is a world without frontiers”? 2. What is the function of the last sentence of the first paragraph? The Internet has the power to connect people across the world to a single shared community. Introuce the following content. 1. What do you often do on the Internet？ Let’s do a little survey first. 27 2. What effects do you think the Internet has on your life? Let’s do a little survey first. 28 To grasp the structure, outline and details of the article. To discuss the benefits and problems of the Internet. To know how to use the computer properly and resopnsibly. Learning aims Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 $$