Unit 1 The Changing World Section A 1a-2d 课件 2026-2027学年人教版九年级英语上册

该初中英语课件围绕“变化中的世界”主题，核心知识点包括谈论事物随时间的变化、变化对生活的影响及变化原因。课堂导入通过“Look and share”环节展示两张环境对比照片，引导学生观察过去荒芜与现在绿化的差异，再结合自身家乡变化提问，搭建从图片观察到个人经验的学习支架。 其亮点在于以“past vs present”对比为主线，通过听力对话（如George与Li Rui讨论家乡交通、医院变化）、结构化表格梳理变化内容，培养学生语言能力（理解与表达）和思维品质（分析比较）。融入“两山”理念、柯柯牙绿色传奇等内容，增强文化意识（家国情怀与生态文明）。学生在讨论与实践活动中提升综合素养，教师可借助丰富素材优化教学效果。

一树红花照碧海，一团火焰出水来。珊瑚树红春常在，风里浪里把花开。 Unit 1 The changing world What changes have taken place around you? Section A (1a-2d) In this unit, you will 1. talk about how things have changed over time. 2. discuss how changes have influenced our lives. 3. find out how changes happened. 4. explore what you can do for your hometown. Learning objectives 变化中的世界 2 Look and share 1. How are these two photos different? The two photos show a big difference. The big photo is covered with beautiful trees. Everything is full of life. The small photo looks lifeless. There is only one tree and no water. 2. Why do you think these places changed so much? Thanks to the government’s support, local people worked hard to plant trees and protect nature. 3. How has your hometown changed over time? In the past, the land was dry. There was no water and few plants. Now, the land is green and full of life. Many plants are growing. 1. Do you like your hometown? 3. What changes have taken place in your hometown? 2. Is your hometown the same as before? Discussion What changes have taken place in your hometown? New school New railway New hospital New road New bridge electricity past present People could only communicate by_______ letters Now people can talk face to face through__________. a telephone past present The hills were covered with _______in the past. sand They are now covered with _______________ beautiful trees past present The roads were ________ in the past. rough The roads are _____________ now. smooth and wide past present The classrooms were ___________ in the past. old and small Now the classrooms are _____________. new and big past present We used to have to travel far to see a _______. doctor Now our town has built a new _________. hospital past present The house was broken and old in the past. The living buildings are tall and convenient now. 12 past present People didn’t have ___________ for shopping in the past. any such places There are many __________ down in the street now. supermarkets 1a The photos show changes in Li Rui’s hometown over the years. What are the changes? How do they make you feel? land is dry/barren few green trees only one building covered with trees and plants，fresh air green home Past Present surprised Happy 1b Listen to a telephone conversation. Then answer the questions. 1. Why does George call Li Rui? Because he and his father are going to visit Li Rui’s hometown. About 20 years ago They are friends. 2. When did George’s father last visit the place? 3. What is the relationship between George’s father and Li Rui’s grandfather? Listening scripts Li Rui: Hello, George. George: Hi, Li Rui. Guess what! My father, Bob, and I are going to visit your hometown. Could you be our guide? Li Rui: Sure! I’d love to! George: Wonderful! You know, my father’s last visit was about 20 years ago. He became a good friend of your grandfather. Li Rui:Grandpa will be so happy They haven’t seen each other for ages! George:Yes, and my father really wants to see how the place has changed since he last visited. Past Present 1c Li Rui is now showing George and his father around her hometown. Listen to their conversation and complete the table. It took __________ to reach the town. Going to school by bus took nearly ______________over rough roads. With the new road, it takes only _______________. Going to school takes only ____________. They used to __________ to see a doctor. The town has built a new ___________. They now have a ____________ down the street. They are now covered with ______________. They didn’t have any such places for ___________. The hills were covered with ______________. half a day nearly 40 minutes an hour 15 minutes travel far hospital shopping supermarket sand beautiful trees Listening scripts Li Rui: What do you think of your trip so far? Bob: Amazing! When I first visited here, it took half a day to reach the town. Now, with the new roads, it takes only an hour. Li Rui: Yes. When I was a child, the bus took nearly 40 minutes over rough roads to get to school. Now, it takes only 15 minutes. George: Life is much easier! Li Rui: Not only that. We used to have to travel far to see a doctor, but now our town has built a new hospital. Bob: Great! And didn’t I see a supermarket down the street? Li Rui: Yes. We didn’t have any such places for shopping until 10 years ago. Bob: But the biggest change is on the hills. They used to be covered with sand. Li Rui: And now they have been covered with beautiful trees! How do they talk about the changes of Li Rui’s hometown? Traffic (交通) Public facilities (公共设施) Environment (环境) Changes Traffic (交通) Public facilities (公共设施) Environment (环境) When I first visited here, it took half a day to reach the town. Now… When I was a child, the bus took nearly… . Now, it takes … We used to have to travel far to see a doctor, but now… We didn’t have any such places for shopping until 10 years ago. But the biggest change is on the hills. They used to be ... And now they … 1d Discuss the changes in 1c. How do you think they happened? Li Rui’s hometown New roads Shorter travel time New hospital New supermarket Green Hills Government support People’s hard work Needs of life sandstorms 沙尘暴 A sandstorm (沙尘暴) is a strong, dry windstorm that carries large amounts of sand, dust, and fine soil particles into the air. water shortage 水资源短缺 There is not enough clean, usable water to meet the needs of people, farms, factories, or the environment in a certain area. Not enough land for farming. Not enough fields to plant rice, wheat, vegetables, etc. Maybe caused by urban expansion, desertification, land being built into houses or factories farmland shortage 耕地短缺 lack of technology 缺乏技术 Not having enough modern tools, machines, skills or knowledge to do something effectively. 2a Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. e.g. I think ……..is the worst because…... 1 2 3 4 沙尘暴 缺水 耕地短缺 技术匮乏 can’t grow enough food Makes farming and daily life very hard Destroy everything Everything is difficult Sandstorms can damage houses, pollute the air, and make it hard to breathe. They can also destroy crops and make farmland worse. However, they are usually seasonal or regional problems, and their impact is not as constant or common as water or farmland shortages. Sandstorms My reason Farmland is where we grow food. If there is not enough farmland, we cannot produce enough food for everyone. Food shortages can lead to hunger and social problems. Farmland shortage My reason Water is the most basic need for all living things, including people, animals, and crops. Without enough clean water, people cannot drink or cook, crops will die, and daily life will stop. This problem directly threatens human survival, so it is the most serious. Water shortage My reason A lack of technology makes solving the other three problems harder, it is not a direct threat to survival itself. Compared to the other three problems, its effects are more indirect and can be improved over time. Lack of technology My reason 2b Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention? There used to be sandstorms all the time... There are fewer sandstorms now... the fields were getting smaller and smaller. 2c Listen again and fill in the table. How has the environment affected local lives? Past Action Present There used to be __________ all the time, and the ______ were getting smaller and smaller. Locals worked by ___________. Locals found a bush. It had ________ roots that could _________the soil together. They began planting it in sandy ________, with the government’s support. They had __________ to help. The corn fields are _________. They have planted many bushes and _________ since then. There are __________sandstorms now and the environment is getting _________. It has improved local lives. sandstorms hand fields long hold areas machines huge trees fewer better Listening scripts Bob: I’m amazed by how green your hometown has become! Grandpa: Have you seen the corn fields outside of the town yet? Bob: Yeah! They’re huge! Grandpa: There used to be sandstorms all the time, and the fields were getting smaller and smaller. Then, after one big sandstorm, we decided to do something. Bob: What did you do? Grandpa: We found a small bush. It had long roots that could hold the soil together. We began planting it in sandy areas. The government provided support too. Bob: Wasn’t it difficult to plant so many bushes? Grandpa: Yes, it was. At the beginning, we worked by hand. Later, we had machines to help. We have planted many bushes and trees since then. There are fewer sandstorms now and the environment is getting better. It has also improved our lives. Everyone has become richer and happier. 2d Discuss how the problems in 2b were solved. A: The area used to be covered with sand. B: What did they do to solve this problem? A: They planted bushes and trees. The land has become ... What change do you want to see in your hometown? What can you do to help? Clean the street plant more trees Protect the environment 变化是创造更美好未来的契机 Change is the opportunity to create a better future. SEE YOU null 41874.094 null 65330.836 null 76381.68 $Twenty years ago, the seas of a visionary Green development philosophy were assumed in china. Today we witness this idea of tourism across the country, with sustainable miracles unfurling across the country. On auto fifteen two thousand five five, secretary of the cpc judge and provincial committee village introduce the cept for the first time. Looted waters and lush mountains are invaluable assets. Pension, previously a minor, is now running a successful tourism company. 我们所有的污染企业彻底牵出一层绿水青山，还给我们的医生。的村民。In twenty three and attract to one point five million tourists. Over fifty five million years. Religious average income has grown for under a thousand year, in two thousand five to over seventy thousand now.