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“家乡变化”主题，聚焦交通、环境、生活变化相关核心词汇及used to do句型，通过“Look and share”对比环境今昔照片导入，衔接听力抓取关键信息、角色扮演运用句型对话等活动，搭建从输入到输出的学习支架。 其亮点在于融合语言能力与思维品质，通过听力对比表格、角色扮演对话等任务型活动，让学生在辨析过去与现在信息中提升语言运用和逻辑思维。结合文化意识，以家乡生态治理案例培养环保与家国情怀，词汇辨析（如rough、be covered with）助力精准表达。学生能提升综合语言能力，教师可高效落实教学目标。

Unit 1 The Changing World Section A (1a-2d) 01 Teaching Objectives 语言能力：学生能够掌握本课时交通、环境、生活变化相关核心词汇，熟练掌握used to do核心句型，能听懂关于家乡今昔变化的听力对话，精准获取关键信息，同时能运用目标句型简单口头描述家乡的过往与现在的变化，完成基础口语交际。 思维品质：学生通过对比家乡过去与现在的环境、交通、生活状况，锻炼对比分析与归纳总结的逻辑思维，能够简单思考生活变化的成因，学会辩证看待社会发展带来的改变，初步形成理性的思辨能力。 学习能力：学生在听力练习、小组对话练习和角色扮演的活动中，掌握抓取听力关键信息的学习方法，主动归纳核心句型用法，提升自主探究与合作交流能力，养成主动运用英语谈论生活话题的学习习惯。 文化意识：学生通过学习家乡的各项发展变化，真切感受社会发展与生态治理的成果，体会生活环境的改善，树立热爱家乡、保护环境的意识，理解发展与环保并存的生活理念，提升家国情怀与社会责任感。 02 Teaching Points 教学重点：本课时重点是学生掌握描述今昔变化的核心词汇与used to do句型的基本用法，能够准确听懂听力材料中关于环境、交通、生活的对比信息，熟练运用目标句型进行口语交流，完成话题对话与情景表达任务。 教学难点：本课时难点是学生能够准确区分used to do与现在时态的用法差异，规避句式运用错误，同时在口语表达中灵活运用句型清晰地描述生活变化，精准辨析听力中过去与现在的不同信息，形成连贯规范的语言表达。 03 Section A (1a-2d) 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. 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. 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. 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. Role-playing. Hello, George. Hi, Li Rui. Guess what! My father, Bob, and I are going to visit your hometown. Could you be our guide? Sure! I'd love to! Wonderful! You know, my father's last visit was about 20 years ago. He became a good friend of your grandfather. Grandpa will be so happy. They haven't seen each other for ages! Yes, and my father really wants to see how the place has changed since he last visited. Li Rui: George: Li Rui: George: Li Rui: George: Li Rui is now showing George and his father around her hometown. Listen to their conversation and complete the table. Past · It took (1)_________ to reach the town. · Going to school by bus took nearly (2)__________ over rough roads. They used to (3)______________ to see a doctor. They didn't have any such places for (4)__________. The hills were covered with (5)______. half a day 40 minutes have to travel far shopping sand Present · With the new roads, it takes only (6)___________. · Going to school takes only (7) __________. The town has built a new (8) _______. They now have a (9)___________ down the street. They are now covered with (10) ____________. an/one hour 15 minutes hospital supermarket beautiful trees Role-playing. 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. Bob: 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! Discuss the changes in 1c. How do you think they happened? Great changes have taken place in transportation, medical care, shopping and the environment. New roads make trips much faster; a new hospital and a supermarket bring easier daily life; tree-planting turns sandy hills green. These improvements mainly come from local government's infrastructure building, economic growth, long-term ecological protection, and the efforts of all local people. Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. sandstorms water shortage farmland shortage lack of technology 1. water shortage 2. sandstorms 3. farmland shortage 4. lack of technology Reasons: If there is not enough water, people can't live or grow food well. Sandstorms hurt people's health and damage crops. And not enough land means not enough food. Technology is important, but people can still work without it. Listen to the conversation between George's father and Li Rui's grandfather. What problems in 2a did they mention? 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. They mentioned sandstorms and farmland shortages. Listen again and fill in the table. How has the environment affected local lives? Past · There used to be (1)__________ all the time, and the (2)_____ were getting smaller and smaller. · Locals worked by (3)______. sandstorms fields hand Action · Locals found a bush. It had (4)_____ roots that could (5)_____ the soil together. · They began planting it in sandy (6)______ with the government's support. · They had (7)_________ to help. long hold areas machines Present · The corn fields are (8)______. · They have planted many bushes and (9)______ since then. · There are (10)______ sandstorms now and the environment is getting (11)______. · It has improved local lives. huge trees fewer better Role-playing. 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. 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... Sample. A: The area used to have terrible sandstorms very often. B: What did they do to solve this problem? A: They planted lots of bushes and trees on the bare hills. The trees can hold the soil and slow down the wind, so sandstorms have become much less frequent now. A: The town used to face a serious farmland shortage. B: What did they do to solve this problem? A: They improved the soil by stopping desertification and built reasonable farmland plans. More fertile land was developed, and they also used scientific farming to make the existing farmland more productive. 04 Vocabulary rough /rʌf/ adj. 崎岖的 例句：The bark of the tree is rough. 这棵树的树皮很粗糙。 have a rough time 过得不顺；经历困难 in rough 粗略地；草稿形式 roughly /ˈrʌfli/adv. 粗略地；大约；粗暴地 roughness /ˈrʌfnəs/n. 粗糙；粗暴 易混辨析：rough vs. tough rough 侧重 “表面不平、路况差”，也可形容 “过程不顺、态度粗鲁”。 tough 侧重 “困难的、艰难的；坚韧的”，多形容任务、经历或人。 易混辨析：rough vs. rude rough 形容 “言行不礼貌、粗鲁” 时，侧重 “不细致、缺乏教养”。 rude 侧重 “冒犯、无礼”，语气更强，指直接违反社交礼仪。 be covered with 被……覆盖 例句：The ground is covered with thick snow. 地面被厚厚的积雪覆盖。 易混辨析：be covered with /be covered by be covered with 侧重表面状态、景象（静态） 翻译：布满、盖满（不突出 “谁去覆盖”） 后接：覆盖物（雪、树叶、灰尘、植物等） be covered by 被动动作、执行者 / 外力（动态来源）；也可表 “被…… 遮挡、由…… 承担” 翻译：被（某人 / 某物）遮盖；由…… 承担 后接：动作发出者、工具、遮挡物、机构 lack /læk/ n. 缺乏 例句：Lack of sleep made him tired all day. 缺乏睡眠让他一整天都无精打采。 lack of… …… 的缺乏 be lacking in… 在…… 方面不足 lacking /ˈlækɪŋ/adj. 缺少的；不足的 lack /læk/v. 缺乏；没有 易混辨析：lack (n./v.) vs. short of (adj. 短语) lack 作名词时常用 (a) lack of sth.；作动词时直接接宾语 lack sth.。 short of 是形容词短语，必须搭配 be 动词，结构为 be short of sth.。 易混辨析：lack vs. need lack 侧重 “因不足而导致问题或无法完成某事”，语气偏书面。 need 侧重 “客观上需要某物，不一定意味着已经短缺”，语气更口语化。 shortage /ˈʃɔːtɪdʒ/ n. 短缺 例句：There is a shortage of water in this area. 这个地区水资源短缺。 a shortage of + 名词 缺少…… labor shortage 劳动力短缺 short /ʃɔːt/adj. 短缺的；不足的 shorten /ˈʃɔːtn/v. 缩短；使变短 易混辨析：shortage vs. lack shortage 侧重 “数量上的不足、供应短缺”，多指资源、物资、人员等具体事物。 lack 侧重 “抽象或具体事物的缺乏”，可作名词或动词，适用范围更广。 易混辨析：shortage vs. scarcity shortage 指 “暂时或局部的供应不足”，语气中性，可用于日常语境。 scarcity 语气更强，常指因资源有限导致的长期短缺，多用于正式或经济语境。 support /səˈpɔːt/ n. & v. 支持 例句：He works hard to support his whole family. 他努力工作养家糊口。 The project got lots of support from local people. 这个项目得到了当地人的诸多支持。 support sb. to do sth. 支持某人做某事 give support to sb. 给予某人支持 in support of 支持；赞同 win support 赢得支持 supporter n. 支持者；拥护者；粉丝 supportive adj. 支持的；鼓励的 supported adj. 受扶持的；被支撑的 易混辨析：support 与 help（二者都可表示 “帮忙”，侧重点不同） support 侧重立场、精神、资金、行动上的拥护与扶持，也可表示物体 “承重、支撑”，还可指 “养家”。 help 泛指日常动手协助、解决具体难题，使用范围最广，仅侧重实际帮忙。 05 Homework Review the words learned in this class. Preview the content for the next class. See you in the next class! null 34716.914 null 56658.633 null 58487.11 $