Unit 1 The Changing World Section B 2a-2c 课件2026-2027学年人教版英语九年级上册

该初中英语课件聚焦合成词学习，涵盖定义、闭合式/连字符式/开放式三类书写形式及railroad等主题词汇。课堂以Compound word视频导入，通过看图猜词（如egg+plant=eggplant）和拆分构词任务（2a组合greenhouse等），搭建从直观认知到逻辑分析的学习支架，帮助学生掌握识别与拼读技能。 其亮点在于融合文化意识与思维品质，借助塞罕坝今昔图片对比和蒙内铁路案例，渗透环保理念与大国担当，引导学生归纳合成词规则培养逻辑思维。采用小组游戏、合作读文等活动提升学习能力，为教师提供结构化素养融合素材，助力学生语言能力与跨文化意识提升。

Unit 1 The Changing World Section B 2a-2c 2026新人教版九上英语 学习目标 语言能力 掌握合成词定义，区分三类合成词：闭合式、连字符式、开放式，能准确识别、拆分、拼读； 掌握本课主题合成词：railroad, greenhouse, sandstorm, highway, farmland, eggplant, scarecrow, firefly； 学习能力 掌握看图猜词、拆分构词的词汇记忆策略，提升自主识词、猜词能力； 通过小组配对游戏、合作读文、分层练习，培养合作探究、自主归纳语法规则的能力； 文化意识 通过塞罕坝 “荒漠变林海” 的文本，感受中国生态文明建设奇迹，树立绿色环保意识； 结合蒙内铁路合成词（railroad），感知中国对外基建援助、中外互利合作的大国担当； 体会英语合成词构词逻辑，感受语言服务生活、反映社会发展的文化特点； 思维品质 逻辑思维：归纳三类合成词书写规则，拆分单词、推导词义，建立 “单词部件 — 整体词义” 逻辑链； 对比思维：结合塞罕坝今昔图片，对比过去 sandy wasteland 与现在 green forest，借助 sandstorm、greenhouse 等合成词梳理环境变化； 01 Lead-in Watch a video. Compound word 02 Presentation egg +plant scare +crow pineapple  firefly scarecrow   pine +apple  Let's Guess eggplant fire +fly Compound words Let's learn. Compound words （合成词）:是把两个或两个以上的独立单词组合在一起，形成的一个具有新意义的新词。 根据书写形式分成三种 2. 连字符式：用连字符连接。eg.mother-in-law(岳母/婆婆),check-in（登记),passer-by（路人),make-up（化妆品）well-known（著名的） 1. 闭合式：连在一起写。eg.sunflower(向日葵),rainbow(彩虹), keyboard(键盘),playground(操场),bedroom(卧室),mailbox（邮箱） 3. 开放式：分开写，但意义是一个整体。eg. ice cream (冰淇淋),high school(高中),post office(邮局),bus stop（公交站） Use a word on the left and a word on the right to create a compound word. 2a green sand high farm rail storm way land house road greenhouse sandstorm highway farmland railroad Complete the sentences with the words in the box. 2b The road used to be narrow and dirty. Now, it is ______ and clean. The ______ made it convenient for the villagers to travel across the river to the city. 3. Beijing, China's ______, hosted the 2008 Summer Olympics and the 2022 Winter Olympics. 4. Our farm has a lot of laying hens. They feed on ______, vegetables, and insects. 5. A digital ________ is something you sell online and doesn't have a physical form. product     corn     bridge     wide     capital wide bridge capital corn product 产卵鸡 Choose one or two words and make your own sentences. Look and Compare This illustration vividly contrasts Saihanba's transformation. From a desolate wasteland to a lush paradise, the visual difference tells a powerful story of environmental restoration and hope. 这幅插图生动展现了塞罕坝的沧桑巨变：从荒芜沙地蜕变为绿意盎然的林海，强烈的视觉反差诉说着一段生态修复、孕育希望的动人故事。 THE PAST Barren sand, no trees, a yellow dusty sky, and a hard, unforgiving life for the people who lived there. THE PRESENT Lush green trees, a beautiful ecosystem, clean air, and a happy, sustainable life for all. 1.7.2013 Good morning, everyone! Look at these two pictures. They show the same place, Saihanba, in Chengde. But they look very different, right? What do you see in the first picture? Yes, sand, no trees, a yellow sky. And what about the second one? Exactly, trees, green, beautiful. Today, we're going to learn how to talk about these amazing changes using the Simple Past and the Simple Present. ‹#› In 1962, Wang Shanghai moved with his family from their house in Chengde to the ______ lands of Saihanba. There were few trees to hold the ______ together, and there were often ___________. Temperatures were below freezing during the winter. Life there was very difficult. With support from the ____________, Wang Shanghai led a group of 369 people who were determined to make the environment of Saihanba better. Over the next 60 years, workers planted __________ and trees, creating the world’s biggest man-made forest. Today, Saihanba is known as "the green miracle". This is the ______ of hard work and people working together. Now, the land is covered with green trees and the water is clean and fresh. Complete the passage with the correct forms of the words in the box. 2c government     bush     sandstorm     result     sandy     soil government sandstorms result bushes soil sandy A Story of Change Mr. Wang has witnessed the transformation of Saihanba from a barren wasteland to a lush forest over the past decades. His life is intertwined with the green miracle. This is Wang Shanghai. Helivesin Chengde, a city nestled in the northern mountains of Hebei Province, close to Saihanba. Heis70 years old now. He has spent most of his life observing and learning about the environment around him. Heknowsthe story of Saihanba very well—every tree, every season, and the hard work of the foresters. 1.7.2013 This is Mr. Wang. He lives in Chengde. He is 70 years old now. He has a story to tell us about Saihanba. Notice the verbs here: 'lives', 'is', 'knows'. These are in the Simple Present tense because they describe facts that are true now. ‹#› Read and answer 1. What was Saihanba like in 1962? It was sandy with few trees. The soil couldn’t be held together, so there were many sandstorms. Winters were below freezing and life was very hard. 2. What’s Saihanba like now? The land is covered with green trees and the water is clean and fresh. How did Saihanba change? Read and answer Because it used to be a sandy wasteland with no life, but now it’s covered with green trees and clean water. This transformation is like a miracle. 2. Why is it called “the green miracle”? ? We learn that with hard work, determination, and teamwork, we can solve serious environmental problems and create a better world. 3. What can we learn from the Saihanba story? Compound words （合成词）:是把两个或两个以上的独立单词组合在一起，形成的一个具有新意义的新词。 Summary Exercise 1. The river is very ______ (wide / bridge), so we need a boat to cross. 2. A _________ (capital / product) is something you buy or sell, like a phone or a book. 3. Beijing is the ______ (corn / capital) of China. 4. After the storm, the ______ (soil / bush) was full of water. 5. A ___________ (sandstorm / greenhouse) can make the sky turn orange and reduce visibility. wide product capital soil sandstorm Homework Need to do: Write 5 compound words related to nature or environment and use each in a sentence. 02. 能力拓展 Draw a “before and after” picture of Saihanba and write 3 sentences describing the change. Choose to do: 1.7.2013 For your homework, please complete two tasks. First, read and try to recite the conversations in 2b and 2d. This will help you improve your oral English. Second, write a short paragraph about a change in your own hometown. Use the 'used to' structure to compare the past with the present. I look forward to reading your wonderful work next time. ‹#› $