Unit 4 Period 3 Internet and Friendships（课件）英语北师大版必修第二册

该高中英语课件围绕互联网与友谊主题，聚焦议论文阅读与写作，通过“互联网是否促进友谊”的导入问题引导学生记录初始观点，搭建从个人思考到文本分析的学习支架，帮助学生理解两篇对立观点博客的主要内容及议论文结构。 其亮点在于融合语言能力、思维品质与学习能力培养，通过词汇复习、复合词构建夯实语言基础，借助主题句识别、论证方法分析（如引用专家观点、举例）提升批判性思维，设计辩论、小组讨论及议论文写作任务促进知识应用。学生能提升阅读分析与表达能力，教师可依托结构化流程高效开展教学。

Period 3 Internet and Friendships 高中英语北师大版2019必修第二册 Unit 4 Information Technology LLearning Objectives Understand two blog posts about the Internet and friendships and get the main ideas. Identify the text structure of argumentation （general idea → arguments → details）. Learn to identify topic sentences and supporting details. Recognize 5 common argumentation methods used in the texts. Debate on whether the Internet helps or harms friendships. contents 1. Lead in 2. Pre-reading 3. While-reading 4. Post-reading 5. Summary & Homework Lead in ❓ Do you think the Internet helps or harms friendships? 👍 Helps 👎 Harms 4 📝 Record Your Initial Thoughts Positive aspects Negative aspects brings people closer together makes people self-centred Write down your reasons in the table below. Pre-reading Words Review harm argument replace hug concentrate concerned be concerned with rewarding addition in addition vt.&n. 伤害，损害 n. 论点；论据 vt. 取代；接替 n.&vt. 拥抱；紧抱 vi. 专注,专心；集中注意力 adj. 关切的，关心的 关心…… adj. 有益的；有意义的 n. 增添；添加 除此之外 content shallow trivial basis percent opinion focus focus on maintain smartphone Words Review n. 内容 adj. 肤浅的，浅薄的 adj. 没有什么价值的；微不足道的 n. 基础；基点 n. 百分比；百分数 n. 意见；看法；主张 vi. 给予某物关注；n. 焦点 关注 vt. 保持；维持 n. 智能手机 Words Review tablet limiting brief emoji creative thought-provoking authority n. 平板电脑；药片；碑，牌 adj. 局限的，限制性的 adj. 简洁的，简明的 n. 表情符号 adj. 创造性的 adj. 发人深省的，令人深思的 n. 权威人士；专家 Make a prediction 1. Read the titles and predict what the blog posts are probably about. The blog posts are mainly about the relationship between the Internet and friendships. 2. What is the writing style of the two blogs? A. Narration (记叙文) is a story with a beginning, middle, and end. B. Description(描写文) describes a subject and lists interesting details. C. Exposition (说明文) is factual, giving information on a subject. D. Argumentation (议论文) aims to convince the readers of a topic. 3. What is the structure of the two blogs? Title general idea argument 1 argument 2 argument 3 conclusion While-reading Identifying Topic Sentences and Supporting Details A topic sentence states the general idea or the main point of a text or paragraph. Supporting details give more information about that topic. Read the text to get the general idea. Identify one sentence for each argument that states this general idea. This is the topic sentence. Read the text again. Look for extra information that supports the topic sentence, e.g. examples, reasons. These are the supporting details. Skill Builder Read the first blog post “The Internet Harms Friendship”. Complete the information on the diagram. Introduction (Para. 1) While the Internet can bring people together, it can also harm friendship. Arguments Supporting details Talking online is no replacement for face-to-face contact. (Para.2) 1 Images cannot replace a real-life … 2 Communicating through a screen makes it more difficult … to concentrate or show kindness … The Internet makes people self-centered. (Para.3) Online relationships may not be what they appear to be. (Para.4) 1 Some people are only concerned with their online popularity. 2 A lot of the content posted on social media is shallow or trivial. Online friendship is not built on the basis of trust, so going online can be dangerous for some people. Conclusion (Para. 5) Friends should focus more on face-to-face communication to maintain healthy friendships. Read the second blog post “The Internet Helps Friendship”. Complete the information on the right side of the diagram. 1. What’s the general idea of the passage? 2. How many topic sentences does he give? What are they? general idea topic sentence/ argument 1 topic sentence/ argument 2 topic sentence/ argument 3 conclusion 3.What does Cathy think of the Internet? Reading for details main idea The Internet can help develop friendships in many ways. The Internet makes communication much more convenient. Argument 1 Supporting details: You can stay in touch with friends no matter where you are or what you are doing. The Internet has also made communication more fun. Argument 2 Supporting details: You can share photos, videos, news stories and websites with your friends online. Online communication can actually bring people closer to each other. Argument 3 Argument 3 Supporting details: Whenever someone needs help, friends from all over the world can immediately provide useful suggestions or information. Conclusion The Internet brings people closer together and makes communication with friends more convenient and interesting. 21 Summary supporting opinions supporting opinions main idea main idea conclusion conclusion Group work Think &share(Ex.6) 1.Look at the sentence(Line 7, Para.2 ,Blog 1), “It is these skills that enable us to develop lifelong friendships”. What does “these” refer to? (Critical thinking) The word “these” refers to social skills, like concentrating or showing kindness to others. 2.(Line7,Para.4, Blog 2) What does Eileen Kennedy-Moore mean when she says that online friends “fill holes real-life friends can’t”? Online communication is a solution when there are difficulties with face-to-face communication, i.e. people live far apart, a person suffers from social anxiety and may find it easier to talk to people online, etc. Post-reading Further Thinking Are there any other advantages or disadvantages of online frienships?If so , list them below.(Ex.7) Advantages Disadvantages People can keep contact with many friends atthe same tme. People get to know more new friends online. The message can be saved to read later whenpeople have time, and online friends are moretolerate with delayed reply. Some people may feel safer with text-basedcommunication rather than face to facecomrunication. Anonymous online friends may be dangerous. It is easy to be trapped with too manymessages, and it takes time. It is not easy to have thought-provokingcommunication with online friends. Here are five methods writers often use to support their arguments. Read the two blog posts again. Identify what methods the writers used. Find examples from the text. Further Thinking A. Cite ideas from experts or authorities 引用论证 B. Give examples 举例论证 C. Use data 数据论证 D. Refer to common knowledge 常识论证 E. Use comparison and contrast 对比论证 1. What methods does the author use to support his arguments? a citing ideas from experts or authorities b referring to common knowledge c giving examples d using data e using comparison and contrast Deep Understanding a citing ideas from experts or authorities b referring to common knowledge c giving examples d using data e using comparison and contrast 2. What methods does the author use to support her arguments? Complete the adjectives. Choose at least five adjectives to write five sentences in the space given. You may express either positive or negative opinions about the use of the Internet.(Ex.9) 1. r_w_rding 2. s_all_w 3. c_n_e_ient 4. sel_-cen_ _ ed 5. l_mi_ing 6. b_ief 7. c_ea_ive 8. ch_erf_l 9. tr_s_ing 10. th_ _ght-provoking e a h o o v n f t r i t r r t e u u t o u 1. ____________________________________ ____________________________________ 2. ____________________________________ ____________________________________ 3. ____________________________________ ____________________________________ 4. ____________________________________ ____________________________________ 5. ____________________________________ ____________________________________ We can find many rewarding things on the Internet. A lot of the content posted on the Internet is shallow and one-sided(片面的). Nowadays it is convenient to surf the Internet. Sometimes, the Internet can make people self-centred. The Internet provides a creative trading platform. Focus on language: Compound Words Complete the compound words with a word from the circles. Then use them in the summary below. Builder Word Some people believe that the Internet has many negative aspects. Talking to people 1.online or having a 2. friendship with someone you only talk to on the Internet isn't a replacement for 3. real-life communication. While it can connect you with other people who use a 4. smartphone , face-to-face contact with others is important to help you maintain healthy relationships. This argument is thought-provoking because it shows that people still need face-to-face communication with others today. In addition, spending too much time on the Internet can make you 5. self-centred because you can become obsessed with popularity and gaining followers. Finally, you need to be careful with various 6. website because you can never be 100 7. percent sure that 8. anything you read online is true. 30 Homework ★Must Write an argumentative passage on how we should use the Internet by following the structure of Lesson 3. ★Optional: Make a speech about how the Internet affects our life, and share it with your classmates next lesson. $