Unit 1 第1课时 Section A 1a-2d-【七彩课堂】2026-2027学年九年级上册英语同步课件（人教版·新教材）

Section a activity to see, listen again and fill in the table. How has the environment affected . local lives? I'm amazed by how Green your hometown has become. Have you seen the corn fields outside of the town yet? Yeah, they are huge. 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. What did you do? We found a small bush. IT had long routes that could hold the soil together. We began planting IT in Sandy areas. The government provided support . to wasn't IT difficult to plant so . many bushes? Yes, IT was. In the beginning, we worked by hand. Later we had machines to help. We have planted many bushes and trees since then. There are few a sand storms now, and the environment is getting Better. IT has also improved our lives. Everyone has become richer and happier. The Changing World Section A 1a-2d To learn new words: shortage, soil, sandy, government, support, corn … To understand present perfect tense. To learn to talk about big changes in the last 10 years. Objectives Let’s talk: What was your hometown like? What is your hometown like now? What changes have taken place around you? Warming-up 1a The photos show changes in Li Rui's hometown over the years. What are the changes? How do they make you feel? 1b Listen to a telephone conversation. Then answer the questions. 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? He wants Li Rui to be their guide. About 20 years ago. They are good friends. 1c Li Rui is now showing George and his father around her hometown. Listen to their conversation and complete the table. Past Present ·It took _______________ to reach the town. ·Going to school by bus took nearly _______________ over rough roads. ·With the new roads, it takes only _______________. ·Going to school takes only _______________ . They used to_______________ to see a doctor. The town has built a new _______________ . They didn't have any such places for _______________. They now have a _______________ down the street. The hills were covered with _______________. They are now covered with _______________. half a day 40 minutes an hour 15 minutes have to travel far hospital shopping supermarket sand beautiful trees 1d Discuss the changes in 1c. How do you think they happened? It took half a day to reach the town. But now, it takes only one hour. Yes, it’s so convenient. sandstorms 2 1 3 4 2a Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. lack of technology water shortage farmland shortage sandstorms farmland shortage difficult environment lack of technology 2b Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention? 2c Listen again and fill in the table. How has the environment affected local lives? 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. sandstorms fields hand long hold areas machines huge trees fewer better “形容词比较级十 and十形容词比较级” 表示“越来越……” 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 … 2d Discuss how the problems in 2b were solved. 1. be covered with 被……覆盖 Language points 例句：The desk was covered with papers. 书桌上铺了些报纸。  The rug was covered with cat hairs. 地毯上净是猫毛。  拓展： cover作动词，意为“盖；覆盖”。  例如：Snow covered the ground. 大雪覆盖了大地。  The clouds had spread and covered the entire sky.  乌云铺开，遮蔽了整个天空。 2. sandstorms /ˈsændˌstɔːm/ n. 沙尘暴 例句： The men lost their way in a sandstorm. 那些人在沙尘暴中迷路了。  His plane made a crash-landing during a sandstorm yesterday.  昨天他的飞机在沙尘暴中紧急降落。 sandstorm是复合名词，是由sand（沙子）和storm（和风暴有关的恶劣天气）组成的。 常见复合名词 basketball 篮球 classroom 教室  bookstore 书店 homework 作业  housework 家务 bedroom 卧室  playground 操场 keyboard 键盘  raincoat 雨衣 policeman 警察  fireman 消防员 snowman 雪人 3. shortage /ˈʃɔːtɪdʒ/ n. 短缺 例句： There is an acute shortage of water. 水严重短缺。 与shortage相关的短语 food/housing/water shortages 食物/住房/用水短缺 3. lack /læk/ n. 缺乏 例句： Her eyes ached from lack of sleep. 她的眼睛因睡眠不足而隐隐作痛。 She suffers from a lack of confidence. 她深受缺乏自信心之苦。 拓展： lack还可以作动词，意为“缺乏；不足；短缺”。 例句： He lacks confidence. 他缺乏信心。  His ideas lack depth. 他的想法缺乏深度。 4. corn /kɔːn/ n. 玉米；谷物 例句：The field had been ploughed and planted with corn. 这块地已犁过并种上了玉米。  Aid workers helped distribute corn, milk and other staples. 救助人员协助分发谷物、牛奶及其他必需的食物。 Ⅰ. 单选。 1. Roads in Yunnan University ________ with golden ginkgo leaves（银杏叶）every autumn.  A. cover B. covered C. are covered D. were covered Exercises C 2. There is a ________ of fresh water on the island. A. short B. shorter C. shorten D. shortage D Ⅱ. 翻译句子。 1. 镇上建了一所新的医院。 2. 他们那里没有任何这样的地方可以购物。 3. 山上全是沙子。 The town has built a new hospital. They didn't have any such places for shopping. The hills were covered with sand. Homework Read and write the conversation. Write some sentences using simple past tense and present perfect tense. 伴你成长 $Section a activity to b. Listen to the conversation between George's farther and leerie grandfather. What problems in two a did they mention? I'm amazed by how Green your hometown has become. Have you seen the corn fields outside of the town yet? Yeah, they're huge. There used to be some storms all the time, and the fields were getting smaller and smaller. Then after one big and storm, we decided to do something. What did you do? We found a small bush. IT had long routes that could hold the soil together. We began planting IT in Sandy areas the government provided support to. Wasn't IT difficult to plant so many bushes? Yes, IT was. In the beginning, we worked by hand. Later, we had machines to help. We have planted many bushes and trees since then. There are few a sandstorms now, and the environment is getting Better. IT has also improved our lives. Everyone has become richer and happier. Unit one, the changing world. Big . question, what brings about changes? Section a, what changes have taken place around you? Section a activity one b, listen to a telephone conversation, then answer the questions. Hello, George. Hi, lee ray. Guess what? My father, bob, I are going to visit your hometown. Could you be our guide? sure. I love to. wonderful. You know, my . father's lost visit was about twenty 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 places changed since he last visited. Section a activity one sea leura is now showing George and his father around her hometown. Listen to their conversation and complete the table. What do you think of your trip so far? 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. Yes, when I was a child, the bus took nearly forty minutes over rough roads to get to school. Now IT takes only fifteen minutes. Life is much easier. Not only that, we used to have to travel far to see a doctor, but now our town has built a new hospital. great. And didn't I see a supermarkets down the street? Yes, we didn't have any such places for shopping until ten years ago. But the biggest change is on the hills. They used to be covered with sand. and now they have been covered with beautiful trees.