Unit 1 The Changing World Section A Grammar Focus-4c课件2026-2027学年人教版九年级英语上册

该初中英语课件聚焦“used to + 动词原形”与现在完成时语法，通过视频导入“过去20年变化”主题，结合图片对比交通、通讯等生活场景，引导学生观察归纳语法结构，搭建从感知变化到应用语法的学习支架。 其亮点在于以真实情境（如贵州交通发展）设计任务型活动，通过对话填空、短文写作等强化语言能力，辩证讨论“变化利弊”培养思维品质，融入家乡发展描述增强文化意识。结构化小结与分层作业助力学生高效掌握，教师可直接用于语法教学与价值引导。

Unit One The Changing World Section A Grammar Focus(4a ~ 4c ) 通过本节课的学习，学生能够： 1.能通过观察，识别并归纳核心语法结构：used to + 动词原形（过去习惯 / 状态）和现在完成时（have/has + 过去分词）的用法及标志词（yet, ever, just, for, since）。能区分 used to do、一般过去时与现在完成时的不同语境与含义，理解它们在描述 “变化” 主题中的功能差异。（学习理解）。 2.能独立完成 4b 对话填空，4c 短文填空，综合运用 used to 和现在完成时，描述过去与现在的对比变化。（应用实践） 3.能创造性地运用本课语法，对 “交通发展与生活改善” 形成辩证的价值理解，并用英语表达对家乡发展的自豪感。（迁移创新）。 Learning Objectives Transportation Payment Living condition Communication Social media Houses Photography George and Lin Hui are talking about the changes over the last 20 years. Watch the video and think about what aspects of change are mentioned in the video? Look at the pictures and say what changes have taken place. People ___________ simple clothes. (wear) Our clothes ___________ colorful and fashionable. (be) We used to walk or ride bikes when we went out. Traffic has become very fast and convenient for five years. People ___________ old cameras to take photos in the past. (use) Mobile phones ___________ taking photos easy. (make) used to use have made used to wear are Look at the pictures and say what changes have taken place. Families ___________ in small old houses in the past. (live) People ___________ into big and bright houses since ten years ago.(move) People _______________________. (pay with cash) Mobile payment _____________________ of cash now. (take the place) We ________________ to keep in touch. (write letters) Social media ______________ our way of communication. (change) used to live have moved paid with cash has taken the place used to write letters has changed Look at the pictures and say what changes have taken place. People used to watch the news on TV five years ago. More and more people have used mobile phones to know what’s going on in the world since 2000. past present 1. We ______________________________ when we went out. 2. People ___________ old cameras to take photos in the past. (use) 3. People ___________ simple clothes. (wear) 1. Traffic ______________ very fast and convenient for five years. 2. Mobile phones ___________ taking photos easy. (make) 3. Now our clothes ___________ colorful and fashionable. (be) 4. People _______________________. (pay with cash) 5. We ________________ to keep in touch. (write letters) 4. Mobile payment _____________________ of cash now. (take the place) 5. Social media ______________ our way of communication. (change) changes over the last 20 years used to walk or ride bikes has become are has changed How do they talk about the changes? simple past tense present perfect tense simple present tense used to use used to wear paid with cash have made has taken the place wrote letters sentence patterns to talk about the changes past present ... have/has done ... am/are/is ... ... V/V-s/es ... ...used to be ... ... used to do... ... V-ed ... 4a Read the sentences and circle the verbs. He became a good friend of your grandfather about 20 years ago. They haven't seen each other for ages! We used to have to travel far to see a doctor. Our village has just built a new hospital. Many people used to work in big cities. Now, more of them have come back to live and work here. Pay attention to the verb tenses. the simple past (一般过去时) the present perfect tense (现在完成时) Grammar Focus the present perfect tense (现在完成时) 用 法 过去发生的动作对现在产生的影响 we've changed the way we farm. Our village has become a tourist attraction. 从过去持续到现在的状态/动作 I have lived here for five years. She has been a teacher since 2010. 构 成 have / has+ done 动词过去分词 Grammar Focus the simple past (一般过去时) 用 法 表示过去发生的动作 we planted many bushes and trees on the mountains last year. 表示过去的情况或状态 The mountain was covered with sand in the past. 表示过去的习惯，经常做的事情 villagers grew a few vegetables on a small farm every year . 构 成 主语 + 动词过去式 + 其它。 Grammar Focus used to do . used to do sth. 过去常常做某事，(暗含现在不做了) The mountain used to be covered with sand. used to be. 表示过去持续的状态，(暗含现在不是该状态了) Our village used to be poor and dirty. There used to be. 表示曾经有，(暗含现在没有了) There used to be sandstorms all the time in our village. A: ______ you ______ (be) to the new library yet? B: No, I ______________ (not know) there was a new library. When did it ______ (open)? A: It ____________ (open) last Friday. I _____________ (go) there with my grandpa on Saturday night. B: ______ you ______ (like) it? A: Of course! It’s the most high-tech library I __________ ever __________ (visit). B: Oh, what ______ you ______ (see) there? A: There are sections with books about science and Chinese culture, as well as a huge section with children’s books. I also ______ (read) some digital books on the computer. My grandpa _____________ (listen) to some audio books because he can’t see well. B: Cool! I ________________ (bring) my little brother there tomorrow. Complete the conversation with the correct forms of the verbs in brackets. 4b Have been didn’t know open opened went Do like have visited did see read listened will bring 对过去不知道某事的陈述 有声读物 have been to… 去过某地（现在已经回来） talk about the feelings now 询问现在的感受 read- read-read talk about the experience on that day talk about the habits talk about the plan in the future Focus on the words circled, what do you learn? Let’s learn the conversation. A: Have you been to the new library yet? B: No, I didn’t know there was a new library. When did it open ? A: It opened last Friday. I went there with my grandpa on Saturday night. B: Do you like it? A: Of course! It's the most high-tech library I have ever visited. B: Oh, what did you see there? A: There are sections with books about science and Chinese culture, as well as a huge section with children's books. I also read some digital books on the computer. My grandpa listened to some audio books because he can't see well. B: Cool ! I will bring my little brother there tomorrow. have been to sp. have gone to sp. How to describe the library according to 4b General idea The kinds of books Activities It is the most high - tech library I have ever visited. There are sections with books about science and Chinese culture, as well as a huge section with children's books. Read the digital books on the computer Listen to the audio books visited played met took has finished Have seen have lived have worked 一般过去时态：有明确的过去的时间； 已经结束的单次动作。 现在完成时态：没有明确的时间，有标志词 发生在过去，对现在产生影响。 Summary Can you answer the question on last lesson? Now, let’s look at a bigger change – transportation in Guizhou. Guizhou is a mountainous province. In the past, it was very difficult to travel. But things have changed now. was be made have taken has built have improved were take make it +(for sb.) adj. + to do sth.使做某事… What was the life like in the past? What is the life like now? Why? past present 1.There used to be no bridges. 2.Most roads were just dirt tracks. 3.This made it difficult for locals to bring products to the market or to develop industry. 1.Great changes have taken place. 2.The government has built thousands of kilometers of highways, railways, and wide roads. 3.It has also built many bridges and tunnels. 4. A journey used to take a day. 4.Now it takes only a few hours. 5.The lives of local people have improved. Difficult. Much richer and happier Which words can show that changes are “great”? who has helped make life better? Parents? Teachers? Workers? Thinking hard work of many people and the support of the government. 1.In Guizhou, My parents have worked hard to give me a good education. The workers have built a new park for us. Who Made the Changes Possible? 2.In our hometown, Change makes life better. Thinking New roads may destroy old forests. Changes can bring problems too. Not All Changes Are Good We should balance development with health. What should we do? Fast food restaurants – convenient but unhealthy. We should ... In the past, it was difficult to travel in Guizhou. In many places, there used to be no bridges to cross mountains and rivers, and most roads were just dirt tracks. This made it difficult for locals to bring products to the market or to develop industry. Now great changes have taken place. The government has built thousands of kilometres of highways, railways, and wide roads. It has also built many bridges and tunnels. A journey that used to take a day now takes only a few hours. As a result, the lives of local people have improved. They are much richer and happier than they once were . there used to be there used to be no make it adj for sb. to do sth. bring sth. to sp. take place George wants to tell his friend in his homeland about the changes over the last 20 years. Please help him write a letter. Help George write the letter to his friends. Write a passage about the changes over the last 20 years. In the past, ___________________________________________________ ________________________________________________________________________________________________________________________ Now, it has changed a lot. _______________________________________ ________________________________________________________________________________________________________________________ Homework Need to do: 完成课本4b、4c的错题订正，在对话和短文中正确运用“I used to...”, “Have you ever...?”描述变化。 Choose to do: 画一幅关于你家乡“过去 vs 现在”的对比画，并写2–3个句子来描述这些变化。（如used to, have/has done, simple past） $