Unit1 Sestion A 2a-2d 课件 2026-2027学年人教版九年级英语上册

Unit 1 The Changing World 第二课时 Section A 2a-2d 通过听力获取民勤/家乡过去的环境问题、采取的治理措施以及现在的变化成果，完成表格填写；识别对话中描述“问题”（一般过去时/used to）和“成果”（现在完成时）的不同时态；运用“问题→行动→成果”的因果框架，概括环境治理的完整过程。 01 运用目标语言描述环境问题及其治理过程（如“There used to be sandstorms. People planted bushes. The land has become green.”）；分析环境问题的成因（如过度开垦、缺乏植被等），判断治理措施的有效性；在角色扮演中运用目标语言，模拟记者采访村民的场景。 02 评价家乡环境治理的成效，表达自己的观点（如“What do you think is the most effective way to solve environmental problems?”）；运用所学语言，讨论自己家乡近十年在环境或其他方面的最大变化，并说明原因和感受。 03 通过本节课学习，学生能够： Learning Objectives 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： 01 情景导入 Scenario Introduction Watch a video While we have seen such amazing changes in our hometown, achieving them was never easy. What challenges and difficulties do you think people might have faced during this process? 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： 02 学习理解 Learning to understand Read and guess This happens when strong winds blow sand everywhere. People can't see clearly and it's hard to breathe. Let's play a guessing game! I'll describe some environmental problems. Guess what they are. sandstorms /'sændstɔːm/ n. 沙尘暴 Read and guess 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 /'fɑːmlænd/ /'ʃɔːtɪdʒ/ 耕地短缺 Read and guess This happens when people don't have modern tools or knowledge to solve problems efficiently. lack of technology /læk/ 缺乏技术 Read and guess There is not enough clean, usable water to meet the needs of people, farms, factories, or the environment in a certain area. water shortage 缺水 These problems once made life very hard in Li Rui's hometown. Which problem was the biggest challenge? Let's go to 2a and rank them. 2 1 3 4 sandstorms water shortage farmland shortage lack of technology 2a Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. Water shortage — Rank 1 (the worst) Reason: If there is not enough water, people can’t live or grow food well. Sandstorms — Rank 2 Reason: Sandstorms hurt people’s health and damage crops. 2a Give your reasons. Farmland Shortage — Rank 3 Reason: And not enough land means not enough food. Lack of Technology — Rank 4 Reason: Technology is important, but people can still work without it. 2a Brainstorm and share your ideas. What problems do these cause? Can you make a chain? lack of trees sandstorms farmland shortage difficult environment How can we solve these problems? Let’s ask Li Rui’s grandfather. 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： 03 应用实践 听说活动 Application Practice Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention? 2b There used to be sandstorms all the time... There are fewer sandstorms now... the fields were getting smaller and smaller. the environment is getting better. Past • There used to be ______________ all the time, and 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. Listen again and fill in the table. How has the environment affected local lives? 2c sandstorms fields 从那以后 在政府支持下 hand long hold areas machines bigger trees fewer better Listen again and check the answers. Past Action Result Environmental problems 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. 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： 04 迁移创新 Migration Innovation Discuss how the problems in 2b were solved. Sandstorms → They found a bush whose roots could hold the soil together. Farmland shortage → They planted the bush in sandy fields with the government's support. Difficult environment → Everyone worked together and the land has become green. 2d What can we learn from the changes in Liu Rui’s grandpa’s hometown? Every big change starts with a small step. The future of our hometown is in our hands. 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： 05 考点大全 Language points 1、I’m amazed by how green your hometown has become! be amazed by sth. 为固定短语，意为 “对…… 感到惊讶 / 惊叹”。amazed 是形容词，主语通常为人，描述人的感受。 例句：我对我们城市的巨大变化感到惊叹。 I am amazed by the great changes in our city. 2、There used to be sandstorms all the time, and the fields were getting smaller and smaller. used to do sth. / There used to be... 表示过去常常 / 过去曾经存在，暗指现在情况已经发生改变。后接动词原形，只用于描述过去。 例句：我家附近曾经有一条小河。 There used to be a small river near my home. 3、There used to be sandstorms all the time, and the fields were getting smaller and smaller. 比较级 + and + 同一比较级，意为 “越来越……”，用来描述人或事物持续发生变化。单音节形容词直接变化，如 smaller and smaller（越来越小）。 例句：这些树长得越来越高了。 The trees are growing taller and taller. 4、It had long roots that could hold the soil together. 本句中 that could hold the soil together 是定语从句，关系代词 that 指代前文的 roots（物），在从句中作主语，用来修饰前面的名词。 例句：我喜欢有关自然的书籍。 I like the books that are about nature. 5、Wasn’t it difficult to plant so many bushes? It is/was + 形容词 + to do sth.（此处为否定疑问句形式），it 作形式主语，真正的主语是后面的动词不定式 to do，表示 “做某事是…… 的”。 例句：学好英语很容易。 It is easy to learn English well. 6、We have planted many bushes and trees since then. since then 意为 “从那以后”，是现在完成时的标志性时间状语。现在完成时结构：主语 + have/has + 动词过去分词，强调动作从过去开始，持续到现在。 例句：从那以后，他就一直住在这里。 He has lived here since then. 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： 06 课堂小测 Exercise 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 二、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 三、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 四、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 65147.99 $