Unit 1 The Changing World Section A 2a-2d 课件 2026-2027学年人教版英语九年级上册

该初中英语课件聚焦Unit 1 The Changing World Section A 2a-2d，核心知识点涵盖sandstorm、farmland等环境词汇，used to do与现在完成时句型，以及听力预测、关键词定位技巧。课堂导入通过对比家乡过去荒芜土地与现在绿色草原的照片，引导学生观察差异、讨论变化原因，搭建从旧知到新知的学习支架。 其亮点在于融合核心素养，语言能力通过听力对话捕捉关键信息、角色扮演2d对话提升听说；文化意识结合家乡环境治理，培养环保意识与社会责任感；思维品质借助对比分析环境今昔差异，梳理问题解决流程。采用小组合作、分层作业（基础抄写、提高短文、拓展对话创编）等方法，助力学生提升综合语言运用能力，教师可高效开展差异化教学。

Unit 1 The Changing World Section A 2a-2d 2026新人教版九上 教学目标 语言能力 掌握核心词汇与短语：sandstorm, farmland, bush, hold soil, provide support 等，理解词义并熟练朗读运用。 听懂2b、2c 听力对话，捕捉环境问题、治理措施、环境变化等关键信息，完成听力任务。 熟练运用used to do、现在完成时描述环境今昔变化，能朗读、角色扮演并创编 2d 对话。 二、学习能力 掌握听力预测、关键词定位、表格梳理的听力技巧，提升信息抓取与整合能力。 积极参与小组合作、角色扮演、对话创编活动，养成自主练习、合作交流的学习习惯。 学会在语境中记忆词汇和句型，提升听说综合学习能力。   三、文化意识 了解家乡环境治理的过程与成果，感受生态保护的重要意义。 树立爱护环境、人人参与、共建绿色家园的环保意识与社会责任感。 体会集体协作、政府扶持对家乡发展的推动作用。   四、思维品质 1. 运用对比思维分析环境过去与现在的差异，锻炼逻辑归纳能力。  2. 结合听力内容梳理环境问题的解决流程，培养条理化表达思维。  3. 联系生活思考身边环境问题及解决办法，提升问题分析与创新思维。 Look and share. 1. How are these two photos different? The main difference is the environment. The old black-and-white photo shows a bare, dry land with only one lonely tree, which looks very desolate. The new photo shows a wide, green grassland with a clear river winding through it, full of life and beauty. The place has turned from a dry, lifeless area into a vibrant, healthy ecosystem. 2a Look at the pictures and discuss with your partner: 1. What can you observe in the images showing the past and present of our hometown? 2. In what aspects (roads, buildings, environment) have great changes taken place over time? In the Past The streets were narrow and dirty with old houses. There were few tall buildings, and the traffic was inconvenient, with only a few buses and bikes for transport. In the Present Wide, clean roads are lined with high-rise buildings and green trees. A convenient transportation network—including highways and new transit systems—connects the city, making daily life comfortable. Look and share. 2. Why do you think these places changed so much? I think the great change is mainly due to human efforts to protect and restore the environment. People may have carried out large-scale tree-planting and grass-growing projects to stop desertification. Over time, these efforts helped bring back the vegetation, improve the soil, and make the river clear again. It shows that with care and hard work, we can turn a bad environment into a good one. Task 1: Look at 2a and predict the answers 01. Who are George and Li Rui? Think about their identities—are they friends, classmates, or are they meeting for the first time? What clues can you get from the context? 02. The relationship between their family members? What is the connection between George’s father and Li Rui’s grandfather? Were they old friends, colleagues, or had another kind of bond? 03. When did George’s father last visit here? Try to guess the time—was it several years ago, or a long time in the past like decades ago? Task 2: Key Vocabulary & Phrases used to do sth. 过去常常做某事 (强调过去的习惯，现在已改变) It takes/took sb. time... 花费某人多长时间做某事，描述完成动作的时间成本。 rough roads 崎岖的道路，形容路面不平坦难行。 see a doctor 看医生，就医；为身体健康问题寻求专业帮助。 go shopping 去购物；进行日常采购或逛街买东西的活动。 be covered with 被……覆盖，描述物体表面的状态。 1.7.2013 Now, let's move to the Pre-listening part. First, look at the questions in activity 2a. Can you guess the answers before listening? Then, let's learn some key words and phrases that will appear in our listening material. Please read after me and try to remember their meanings. These will be very helpful for you to understand the conversation. ‹#› Look and share. 3. How has your hometown changed over time? My hometown has changed a lot. It used to be a small town with narrow roads and few green areas. Now, the roads are wide and clean, and there are many parks and trees everywhere. There are also more tall buildings and modern facilities. Life is much more convenient, but we also pay more attention to protecting the environment to keep our hometown beautiful. The photos show changes in Li Rui's hometown over the years. What are the changes? How do they make you feel? Li Rui's hometown was covered with sand many years ago. But now it is covered with beautiful trees. More and more people are living here. I'm amazed and I feel happy. 2b Sample A: My city is lovely. B: What are some of the special places there? A: Well, there’s a concert hall there. It’s been around for at least 20 years. 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 ... 1. Why does George call Li Rui? 2. When did George's father last visit the place? 3. What is the relationship between George's father and Li Rui's grandfather? Listen to a telephone conversation. Then answer the questions. He calls Li Rui because he and his father are going to visit Li Rui's hometown and he wants Li Rui to be their guide. They are good friends. He last visited the place about 20 years ago. The land has become rich and suitable for farming. At first they worked by hand, then machines gave them help. With the government’s support, soil is well protected. The difficult environment has totally changed. Every big change starts with a small step. The future of our hometown is in our hands. Clean the street. Plant more trees Protect the environment Language points Point 1 1. water shortage shortage /ˈʃɔːtɪdʒ/ [名词]短缺 a shortage of 缺少…… 其后常接 water, money, material 等表具体物质或资源类的名词。 There is no shortage of... 不缺…… /……有的是 The city is suffering from a shortage of fresh water. 这座城市正遭遇淡水短缺。 There is no shortage of (=There are plenty of) things to do in the city. 城市里不愁没活干。 According to the pictures, try to retell the story. past action present There used to…… The fields…… Locals found…… They planted it…… The corn fields are…… There are fewer…… 2c Let’s think. 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 bigger and bigger.There are fewer sandstorms now and the environment is getting better. Point 2 lack of technology lack /læk/ (1) [名词]缺乏 lack of 缺乏…… 其后常接 sleep, interest (兴趣), patience，courage 等表抽象概念的名词。 The research shows that lack of sleep can affect our memory. 研究表明，睡眠不足会影响我们的记忆力。 (2)[动词]缺乏；不足 She used to lack confidence, so she seldom answered questions in class. 她过去缺乏自信，所以她很少在课堂上回答问题。 (2)[动词]支持 搭配 support sb in (doing) sth 在(做)某事方面支持某人 Whatever you do, we will support. 无论你做什么，我们都支持你。 His family supported him in making his own decision. 他的家人支持他自己做决定。 The government supports protecting farmland.政府支持保护耕地。 (3)[动词]赡养；抚养 She has to work hard every day because she has two children to support. 她必须每天好好工作，因为她有两个孩子要抚养。 The government provided support too. support (1)[不可数名词]支持 搭配：give support to 给予......支持 with the support of sb. = with sb’s support With your support and help, we succeeded in finishing the project on time. 在你们的支持和帮助下，我们成功地按时完成了项目。 They began planting bushes in sandy farmland with the government’s support. Point 3 1. The hills used to __________ (be) covered with sand, but now they are green. 2. With the government's __________ (support), they built a new hospital in the town. 3. The roots of the bush can hold the soil __________ (good) than those of small grass. 4. They have planted many trees since then, so there are __________ (few) sandstorms now. 5. It __________ (take) them half a day to reach the town 20 years ago. 一、用括号中所给单词的适当形式填空。 be support better fewer took Discuss how the problems in 2b were solved. Problems：Sandstorms Farmland shortage 2d Solution： They found a bush .It had long roots that could hold the soil together. They planted the bush in sandy fields with the government's support. Talk about how the problems in Li Rui’s hometown were solved. Pair work A: The area used to ... / There used to be... B: What did they do to ...? A: They .... And now ... has become... There are ... Discussion What brought about the changes in Li Rui’s hometown? People’s wisdom and hard work Government’s support Help of technology Better environment and better life 用括号内动词的正确形式填空，完成句子。 We _____________ (plant) many trees since then. People are amazed _________ (see) the great changes here. The river is getting __________ (clean) and cleaner. There ______ (use) to be lots of sandstorms here. This is the bush _________ (have) long roots to hold soil to see have planted used cleaner that has 按要求改写句子，每空限填一词。 1. I am amazed by its beauty.（改为一般疑问句） ______ ______ amazed by its beauty? 2. There used to be sandstorms here.（改为否定句） There _______ ______ to be sandstorms here. 3.The fields were getting smaller and smaller.（对画线部分提问） ______ ______ the fields getting? 4.It was difficult to plant bushes.（改为同义句） _________ bushes ______ difficult. 5.We have planted trees since then.（对画线部分提问） ______ ______ you planted trees? Are didn’t use How were you Planting was When have George and his father go back to their country. They want to talk about what they saw and how they felt in China. Now, if you are George and his family, make a conversation and act it out according to the visit. George’s mother: How was your trip to China, darling? George: It was great. I was happy to see my friend Li Rui. And it was amazing to see so many changes over there. George’s mother: Really? What did you see there, George. George:... Section A 2a-2d 重点短语及句型背默 短语背诵版 1.water shortage 缺水 2.farmland shortage 农田短缺 3.lack of technology 科技短缺 4.be amazed by 被...惊讶到 5.the corn fields 玉米地 6.all the time 总是 7.sandy areas 沙地 8.by hand 手工 9.hold the soil 固定土壤 10.since then 从那以后 11.with sb’s support 在某人的支持下 12.local lives 当地人的生活 用现在完成时 Section A 2a-2d 重点短语及句型背默 短语默写版 1.缺水 2.农田短缺 3.科技短缺 4.被...惊讶到 5.玉米地 6.总是 7.沙地 8.手工 9.固定土壤 10.从那以后 11.在某人的支持下 12.当地人的生活 选词填空。 The environment in my hometown has changed a lot. There (1) __________ be many (2) __________ every year. The (3) __________ was dry and sandy. The farmland (4) __________ made it hard for people to grow food. To solve the problem, the locals planted (5) __________ and trees with the help of the (6) __________. It provided strong (7) __________. They also built a new (8) __________ to connect the village to the city. Now the village has become a tourist (9) __________ and sells local (10) __________ to visitors. used to sandstorm shortage support attraction used to soil bush government product highway sandstorms soil shortage bushes government support highway attraction products 2. Whose birthday is it? Homework 1. 基础层：抄写全部生词；跟读 1c、2c 听力音频 2 遍。 2. 提高层：借助课堂思维导图，写一篇 60 词左右短文，介绍 李锐家乡的变化。 3. 拓展层：思考 3 条改善环境的办法，仿照 2d 格式编写完整 英文对话。 学习目标 通过听读对话，获取Li Rui家乡在交通、医疗、购物、环境等方面的具体变化信息，完成表格填写；识别并区分对话中一般过去时（描述过去）和现在完成时（描述变化结果）的形式和意义；运用“used to... But now...”的对比结构，概括家乡变化的主要内容。 01 运用一般过去时和现在完成时，描述Li Rui家乡的变化（如“It used to take half a day, but now it takes only an hour”）；分析听力对话中人物的情感态度（如Bob的惊叹、Li Rui的自豪），判断变化对人们生活的积极影响；在角色扮演中模仿对话的语调和表达方式，运用目标语言进行交流。 02 评价家乡变化带来的利弊，表达自己的观点和感受（如“What do you think is the most important change?”）；运用所学语言，在真实或模拟的情境中讨论自己家乡近十年的变化，并表达情感态度。 03 通过本节课学习，学生能够： Thanks for watching! null 34716.914 $