Unit 2 Improving yourself Understanding ideas 课件-2025-2026学年高中英语外研版（2019）选择性必修第二册

该高中英语课件围绕“社交媒体脱瘾”主题，以中国用户日均2小时+使用时间及7大负面影响数据导入，通过Brenton High School 7天脱瘾活动案例（为体育设备筹款，100+学生参与，5名参与者经历）搭建从现象到实践的学习支架，衔接词汇解析、阅读理解与反思任务。 其亮点在于真实情境驱动与任务链设计，融合语言能力（如“pick up”“give in”等词汇，“It was +adj. for sb. to do sth.”等句式运用）和思维品质（分析参与者成败原因、判断脱瘾价值）的培养。通过数据研读、小组采访、写作作业（用指定词汇句式反思个人经历）等环节，学生在实践中提升语言表达与反思能力，教师可借助任务链高效落实理解与输出训练。

Understanding Ideas UNIT2 Social Media Detox Is this your situation? less sleep time less time to read books negative effects poorer eyesight less time with family privacy and information security getting addicted to it A sharp decline in grades Let’s ask AI chat bot for more negative effects What can you do to stop yourself from being addicted to social media? 社交媒体脱瘾 ✎ Fast reading ✎ Introduction of the campaign The experiences and reaction of participants Conclusions Where is the passage taken from? Read the first paragraph. Predict what the passage is about. The passage is about a __________ for _____________ social media for ______ days among_____ students. campaign stopping using seven five time organiser aim participant form content Brenton High School _____________________ _____________________ _____________________ _____________________ _____________________ To raise fund for new sports equipment. Seven days In any form Over 100 students _________________________________ No messaging friends, no posting photos, no blogging – nothing. _____________________ Detailed-reading Para.1&2 Were all the participants willing to participate in it? Finish Activity 4 and answer these three questions 1. Among the 5 participants, who lasted for the full 7 days? 2. Do you think the detox was worthwhile? Why? 3. Why some of them could succeed or fail? I lasted two days. The detox was more difficult to tolerate than I had expected. I felt like I had lost an arm! Not eating for two days would have been easier! But on reflection, I can see how much of my time had been occupied with checking my phone. I’m now trying to spend less time online and more time picking up my hobbies. Name Reaction Result Anna (2 days) It was ______________than she had expected. She felt like _____________! She can now see how much time had ___________________________ her phone. She is now trying to spend more time ____________________. Para. 3 she had lost an arm picking up her hobbies pick up: to start again; to continue more difficult to tolerate been occupied with checking 10 Name Reaction Result Devon (4 days) When he saw a classmate on Monday, he felt ___________ not to already know what his classmate had done at the weekend. They had to ______________ what they were doing and thinking! It made him realise ____________. Para. 4 really strange the value of real contact that he had forgotten I lasted four days. On Monday, my classmate and I spoke about what we did at the weekend – it felt really strange not to already know what he had done. We would usually have posted pictures and updated our profiles. Doing the detox meant we had to talk and explain what we were doing and thinking! It made me realise the value of real contact that I had forgotten. talk and explain 11 Name Reaction Result Cindy (7 days) At first, she really felt _________________. Without their phones, she and her friend _______________________ for over two hours. By the fifth day, she realised that she _________________________________. Para. 5 she was missing out had a proper conversation I managed the whole week! At first, I really felt I was missing out. Then, instead of messaging my friend, I went round to her house. Without our phones, we had a proper conversation for over two hours, without being distracted by messages from other people. It felt so good! Then I decided to visit a different friend every day. By the fifth day, I wondered – was I really missing out by not constantly checking my phone to see what everyone else was up to? miss out: to lose an opportunity to do or have something hadn’t been missing out on anything figure of speech: a rhetorical question反问句 12 Name Reaction Result George (7 days) He didn’t find the detox too ________, but he did give his phone to his dad to avoid _____________. An hour’s sport each day left him __________and ______________. The detox made him __________! Para. 6 giving in healthier I did all seven days, too! To be honest, I didn’t find the detox too difficult, but I did give my phone to my dad to avoid giving in! My brother thought I should make full use of the time without my phone, so he took me to check out our local sports centre. An hour’s sport each day left me tired out and wanting to go to bed early. The detox made me healthier! give in: to accept that you are defeated difficult tired out wanting to go to bed early 13 Name Reaction Result Max (Less than 1 day) He ________________ on the first day. He used his phone to check where a party was. He spent so much time using his phone to _________________ on social media, and he almost _________________. Para. 7 threw in the towel catch up on news I’m embarrassed to say that I threw in the towel on the first day! I knew there was a party happening that evening, but without access to social media I couldn’t remember where it was! In the end, I turned on my phone to check, but couldn’t resist having a quick look at my social media accounts. What’s worse, I then spent so much time catching up on news, I almost missed the party! throw in the towel: to stop trying to do something because you think you cannot win missed the party 1. Among the 5 participants, who lasted for the full 7 days? 2. Do you think the detox was worthwhile? Why? 3. Why some of them could succeed or fail? 14 3. Choose the benefits of the social media detox according to the passage and find evidence to support your choices. 1. It helped students learn how to best communicate using social media. 2. It raised money for school sports equipment. 3. It made students want to spend even more time on social media. 4. It made students realise how much time they had been spending on social media. 5. It encouraged students to find new ways to communicate and try new activities. Evidences for 2 Evidences for 4 Evidences for 5 Check your answers! 2 It raised money for school sports equipment. 4 It made students realise how much time they had been spending on social media. 5. It encouraged students to find new ways to communicate and try new activities. ✎ Interview ✎ Work in group, the interviewer may ask following questions and the other students may answer them to finish the interview. How much time is it proper for you to spend on social media? How can you best communicate using social media? Can you find any new communication methods or activities besides social media? What would you do if you had to give up social media for a week? How do you feel without using social media? How can we avoid giving up halfway? 33002 letters social media apps cash mobile payment sales in market live-streaming sales Use the social media in a proper way and in proper time. Make good use of our limited time by doing meaningful things. Never let social media addiction overshadow the wonders of real life. Put down phones, feel the day! Love real moments, not screen play! Use tech right, in a good way! Cherish beauty, every day! Let’s swear together—repeat after me! Homework It was +adj. for sb. to do sth. 6. catch up with 2. be occupied with 7. 定从 3. real contact 8. 动名词短语作主语 4. make full use of 9. be up to 5. pick up 10. step away from Imagine you also took part in this campaign. How long did you last? How did you feel and what changes did you have? (You can use some important words, phrases or sentence structures in this passage.) Upload your post on the forum. 22 Thank You! $