Unit 1 课时2 Section A 2a-2d（大单元教学课件）英语新教材人教版九年级上册

该初中英语课件围绕“环境问题”核心，通过Li Rui家乡过去与现在的交通、公共设施、环境对比复习，搭建学习支架，衔接Pre-listening的环境问题排序任务，帮助学生从已知过渡到新知。 其亮点是以听说为主线，结合听力表格填空、对话细节提取提升语言能力，小组讨论问题解决方法培养思维品质，分层作业设计发展学习能力。语言点讲解细致，小结清晰，助力学生掌握知识并增强环保意识，教师可高效开展听说教学。

Unit 1 The Changing World 课型：听说课 Section A 2a-2d 01 Review 02 Pre-listening 03 While-listening 04 Post-listening 05 Language points 06 Exercises Contents 07 Summary 08 Homework Learning Objectives 通过本节课的学习，学生能够： 1.能掌握有关环境问题的单词和相关句型，根据听力内容完成任务表格（学习理解）。 2.能正确使用目标句型分析环境问题产生的原因（应用实践）。 3.能意识到环境保护的重要性，并提出改善环境问题的个人想法以及积极采取行动（迁移创新）。 感 谢 观 看 01 Review Li Rui’s hometown has change gratly. Traffic (交通) Past Present • It took to reach the town. • Going to school by bus took _______________________ over rough roads. • With the new roads, it takes only ______________ . • Going to school takes only . nearly 40 minutes half a day an hour 15 minutes Revision Li Rui’s hometown has change gratly. Public facilities (公共设施) Past Present They used to _________ ________________________ to see a doctor. The town has built a new . They didn't have ______________________ for shopping. They now have a ________________down the street. go to the big city far away good places hospital supermarket Revision Li Rui’s hometown has change gratly. Environment (环境) Past Present The hills were covered with . They are now covered with ____________________. sand beautiful trees Revision What problems did Li Rui’s hometown once face when dealing with the environmental problems? 02 Pre- listening 2a Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. 沙尘暴 /ˈsændstɔːm/ sandstorms /ˈfɑːmlnd/ 耕地短缺 farmland shortage /læk/ 缺乏技术 lack of technology /ˈʃɔːtɪdʒ/ 恶劣环境 difficult environment I think... is the worst because.... 2a Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons. First,I think the difficult environment is the worst.Because a bad environment can cause many other problems and make people's daily lives very hard. The second is sandstorms.Sandstorms are terrible.They can cover the land,hurt people's health and make it hard to travel outside. The third is farmland shortage.Without enough farmland,farmers can’t grow enough food for people. Finally,lack of technology is No.4.It is a problem,but we can learn and develop new technology to solve other problems step by step. 03 While- listening 2b Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention? sandstorm difficult environment farmland shortage lack of technology There used to be sandstorms all the time... There are fewer sandstorms now... the fields were getting smaller and smaller. 2c 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? 从那以后 在政府支持下 影响当地生活 措施 灌木 /bʊʃ/ 根 /ru:ts/ 土壤 /sɔɪl/ /ˈɡʌvənmənt/ səˈpɔːt /səˈpɔːt/ 谷物 /corn/ 含沙的 /ˈsændi]/ 2c 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? sandstorms fields hand long hold areas machines bigger trees fewer better Listen again and check the answers. 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. Past Action Result Environmental problems 2c 04 Post- listening 2d 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 ... 2d Discuss how the problems in 2b were solved. EXAMPLE: 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 govemment also gave support. B:Was it easy to plant so many bushes? A:No,it wasn't. They worked by hand at first, and later used machines. B:How is the environment now? A:They have planted lots of bushes and trees. There are fewer sandstorms,and the land has become much greener and better. 05 Language Points Language points 1. farmland shortage 耕地短缺（P3） shortage /ˈʃɔːtɪdʒ/ [名词]短缺 搭配：the shortage of ……的短缺/不足，其后常接 water, money, material 等表具体物质或资源类的名词。 句型：There is no shortage of... 不缺…… /……有的是 Many people are worried about food shortage inthe future. 很多人担心未来会出现食物短缺。 The shortage of doctors has become a bigproblem.医生短缺已经成为一个大问题。There is no shortage of (=There are plenty of) things to do in the city. 城市里不愁没活干。 Language points 2. lack of technology 技术缺乏（P3） lack /læk/ (1) [名词]缺乏；不足 搭配: a 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 a lack of sleep is bad for our health. 研究表明，睡眠不足对我们的健康有害。 (2)[动词]缺乏；没有 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。 Language points 3.There used to be sandstorms all the time, and the fields were getting smaller and smaller.过去一直有沙尘暴，而且田她变得越来越小。(P3-2c) 比较级+and+比较级 “越来越…… ” 通过在单词前加more构成的比较级，用“more and more+形容词/副词原级”表示“越来越……”。 If we protect the environment,the air willbecome fresher and fresher.如果我们保护环境，空气将会变得越来越清新。 Our city is becoming more and more beautiful. 我们的城市正变得越来越美丽。 (2025·广东汕头三模)Fast walking is becoming____according tothe recent survey. A.popular and popular B.more popular and more popular C.popularer and popularer D.more and more popular Language points 4.They began planting it in sandy areas, with the government’s support. (P3-2c) 在政府的支持下，他们开始将其种植于沙质区域。 由“sand (n. 沙子) + -y (形容词后缀)”构成。 sandy /ˈsændi/ adj. 铺满沙子的；含沙的 People here used to live in the sandy area andlived a hard life. 这里的人们过去生活在多沙地区，过着艰苦的生活。 The soil in my garden is very sandy. 我花园里的土壤含沙量很高。 -y表示“充满……的；有……特性的”，通常加在名词后构成形容词。 dust n.灰尘 — dusty adj. 布满灰尘的 hair n.毛发 — hairy adj.毛茸茸的 词缀拓展 Language points 4.They began planting it in sandy areas, with the government’s support. (P3-2c) (1) [及物动词] support sb. in (doing) sth. 在（做）某事方面支持某人 support /səˈpɔːt/ n. & v. 支持 You have to trust and support each other during matches. 在比赛期间，你们必须互相信任和支持。 We’ll support you in making your own decision. 我们将支持你自己做决定。 Language points (2) [不可数名词] with sb.’s support = with the support of sb. 在某人的支持下 give support to sb. 给予某人支持 in support of 支持... support /səˈpɔːt/ n. & v. 支持 With my teacher’s support, I finished the task successfully. 在老师的支持下，我成功完成了任务。 My parents always give enough support to me during my growth. 在我成长的过程中，我的父母总是给我足够的支持。 We held a meeting in support of environmentalprotection. 我们举行了一次会议支持环境保护。 词义拓展 养活 He works hard to support his family. 他努力工作以养活自己的家庭。 证实 The facts support our conclusion. 这些事实证实了我们的结论。 06 Exercise It takes four hours _______ (travel) from Shanghai to Beijing by train. The books are _______ (cover) with dust. Sea buckthorn (沙棘树) grows on ______ (sand) soil. 一、用所给词的适当形式填空。 to travel covered sandy 二、完成句子，每空一词。 1. 在父母的支持下，我赢得了比赛。 I won the competition _____ _____ _______ _______. 2. 我过去常步行去学校。 I _____ _____ _____ to school. with my parents’ support used to walk 07 Summary Summary New words sandstorm, shortage, farmland, lack, bush, root, soil, sandy, government, support, corn Expressions with sb’s support=with the support of Sentences 1.There used to be sandstorms all the time, and the fields were getting smaller and smaller. 2. They began planting it in sandy areas, with the government’s support. Every big change starts with a small step. The future of our hometown is in our hands. 08 Homework Homework Need to do: Review the language points of this lesson. Choose to do: Talk about how Li Rui’s hometown solved the problems—sandstorms and farmland shortage. Bye-bye! $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 sand storms 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 roots that could hold the soil together. We began planting IT in Sandy areas. The government provided support, too. Wasn't IT difficult to plant . so many bushes? 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 sand storms now, and the environment is getting Better. IT has also improved our lives. Everyone has become richer and happier. 哥哥，说过了，老警员在风里不好，今天是没空，不会下雨去了。透过窗看着那匆匆的季节，总会想起你的昨天，何时能忘却，不怕冰释前嫌。他让我们的爸爸妈妈从城里回来，还说有新技术能让大家一起挣钱。他说你给我站出去，然后。好家庭好。有点小。最后两双是在这些都想看信息，还不新鲜。