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

该初中英语课件围绕“The Changing World”主题，聚焦环境变化相关词汇（如sandstorms、farmland shortage）、语法（used to、感叹句、现在完成时）及听说技能，通过李瑞家乡变化故事导入，过渡到三北防护林工程视频与问题，搭建从个人经历到国家生态工程的学习支架。 其亮点在于以真实情境任务驱动，如“Small Actions, Big Changes”校园广播活动，结合视频观看、对话听力等多模态输入，培养学生语言能力。通过梳理“问题-行动-结果”逻辑链，提升思维品质，融入三北防护林案例渗透“绿水青山”文化意识，助力学生提升综合语言运用能力，也为教师提供丰富的教学活动与评价工具。

Unit One The Changing World Sec A 2a-2d Li Rui’s hometown has changed greatly over the past 20 years. George and his father Bob plan to visit it, and Li Rui will ________ their guide. Bob ________ good friends with Li Rui’s grandfather about 20 years ago. They each other for ages. Bob says the trip is . In the past, it ________ half a day ________ the town. Now, with new roads, it ________ only an hour. When Li Rui was young, she ________ go to school on rough roads, and it ________ nearly 40 minutes. Now it ________ just 15 minutes. Life is much easier now. People ________ travel far to see a doctor before, but now the town ________ a new hospital. There ________ no good places for shopping 10 years ago, but now there is a supermarket. The biggest change is on the hills. They ________ covered with sand in the past, but now they 　　　　　　　　 with green trees. Let’s review. be made haven’t seen amazing took takes used to took takes used to to reach has built were were are covered Why do people start the Three-North Shelterbelt Forest Program? It is used to combat desertification(抵制荒漠化）, restore ___________ and protect ___________________. 2. What did the program start? It started in ____________. 3. What challenges did people face? Harsh_________, ________ degradation(退化) 4. How do people solve these problems? ecosystem the homes and lives. 1978 soil climate The community and ___________ support More and more people join in ____________. Innovative techniques are also used in the program. government tree planting sandstorms difficult environment farmland shortage Watch the video and answer the questions. Match the words or phrases with the pictures. sandstorms difficult environment farmland shortage high-technology Listen to the conversation between Bob and Grandpa, and check the problems mentioned. difficult environment farmland shortage lack of technology sandstorms √ √ √ Listen again and fill in the table. How has the environment affected local lives? Past There used to be _______________ all the time. The __________ were getting smaller and smaller. Locals worked by _________________. Action 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. Present 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. n./adj. 预测sandstorms n.复数 猜测fields n. n./adj. v.原形 n. n. adj. 预测larger n. 类似于bushes adj.比较级 adj. 比较级 预测fewer 预测better一类 Listen again and fill in the table. How has the environment affected local lives? Past There used to be _______________ all the time. The __________ were getting smaller and smaller. Locals worked by _________________. Action 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. Present 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 fields hand long hold areas machines huge trees fewer better ______ The government provided support. ______ They found a small bush with long roots. ______ There used to be sandstorms all the time. ______ They have planted many bushes and trees. ______ There are fewer sandstorms now. Listen again and put the events in the correct order(1-5). 1 3 2 4 5 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. 过去存在 现状感知 决策与行动 困难与过程 结果与影响 Why did people continue doing these things even though it was difficult to plant trees? 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 感叹句：How+adj./adv.+主语+谓语！ 现在完成时标识，常用于疑问句和否定句中。 过去有… 一直 变得越来越小 决定做某事 固土 在沙石区域 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. 人力劳作 改善我们的生活 变得更加富裕、更加幸福 Bob: I’m amazed by ______________ your hometown has become! Grandpa: _______________the corn fields outside of the town yet? Bob: Yeah! They’re huge! Grandpa: _______________be sandstorms all the time, and the fields were getting _________________. 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 _____________ together. We began planting it _______________. how green Have you seen There used to smaller and smaller hold the soil 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 ____________. 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 _________________. Everyone has become richer and happier. by hand improved our lives Now, our school TV station is planning a special show called “Small Actions, Big Changes”. They want to share inspiring stories about how ordinary people solve environmental problems. You are invited to be a student broadcaster. Your task is to introduce the changes in Li Rui’s hometown, and then record them. Your broadcast should answer these three questions: What was the problem? What did people do? What happened as a result? How did people change that? Hello, everyone! Welcome to “Small Actions, Big Changes”! Today I want to share a story about .... In the past, there used to be …. They found … At first they... Now there are … So remember: small actions can create big changes. Thanks for listening! 1 2 3 Checklist 维度 3分 2分 1分 内容完整 包含问题、行动、结果三部分 缺少一部分 只讲了一部分 语言准确 正确使用 used to、have planted 等，错误≤1 有2-3处错误 多处错误，影响理解 表达自信 声音响亮，眼神交流，有情感 基本流畅，情感平淡 声音小，不流畅 Further thinking Come and plant a tree in Minqin is very popular in 2026. Many volunteers come to Minqin and plant trees. Why do people choose Minqin to plant a tree? Why do more and more young people join the activity? What do you think of their behavior? It is surrounded by two large deserts. They think it is meaningful and they know small actions can make a big difference. It is inspiring and we should learn from them. 语言能力 我能听懂对话中关于环境问题、措施和结果的细节信息 表达环境问题 In the past, there used to be… People used to… The roads were… and the fields… 表达行动决策 Then, they decided to… They have built… They found… and began planting… With the government’s support,… 描述现在结果 Now, there is / are… It takes only… The environment has become… People are… and… Let’s check ourselves. Let’s check ourselves. 核心素养 我能 学习能力 根据图片恰当的描述生态治理存在的问题，使用恰当的听力策略，借助关键词，进行听前预测和答案的预判。 思维品质 我能从对话中提取问题、措施、结果，并绘制思维导图梳理逻辑关系，我能分析沙尘暴治理成功的原因（政府支持、科技、人力等） 文化意识 理解人们在治沙方面付出的心血及中国在生态治理方面的成就（如塞罕坝、沙地治理） 个人成长 面对困难时，主动寻找方法并付诸行动，才能带来真正的转变 坚持、合作与善用资源，能够将看似不可能的问题转化为成长的机遇 Exercise 一、核心词汇 1、短语互译 沙尘暴 ______________ 耕地短缺 ______________ 缺乏技术 ______________ 恶劣环境 ______________ be covered with ______________ hold the soil together ______________ government support ______________ sandstorms farmland shortage lack of technology difficult environment 2、选词填空（每词限用一次） sandy / soil / bush / improve / plant The land was dry and ________. Farmers need good ________ to grow crops. People ________ trees to make the environment better. A ________ has strong roots to keep soil. We hope our life will ________ day by day. 被…… 覆盖 sandy soil plant bush improve 固土 政府支持 二、重点句型 1. 句型转换（used to） It took half a day to get to the town. It ________ ________ ________ half a day to get to the town. There was no hospital here. There ________ ________ ________ no hospital here. People traveled far to see a doctor. People ________ ________ travel far to see a doctor. used to take used used to be to 二、重点句型 2. 完成句子 过去这里常常有沙尘暴。 There ________ ________ ________ sandstorms here. b) 现在山上被绿树覆盖。 Now the hills ________ ________ ________ green trees. c) 多亏了政府的帮助，环境变好了。 Thanks to the , the environment is better. used to be are covered with government’s help Homework 基础作业： 以 Grandpa 的身份（第一人称）讲述如何治理沙尘暴的。包含过去的问题 → 采取的行动 → 现在的成果，做到时态正确、语句通顺。 提升作业： 制作一张英文海报，标题为 “From Sand to Green” ，展示 Grandpa 村庄治理沙尘暴的 三步过程（问题→行动→结果）。 拓展作业： 网上搜索关于中国其他地方治沙的相关故事，下节课进行分享。 Lavf59.27.100 Packed by Bilibili XCoder v2.0.2 $