Unit1section B vocabulary in use 2a-2c 词汇课课件 2026-2027学年人教版英语九年级上册

该初中英语课件围绕“合成词规律及核心词汇”展开，课堂导入通过塞罕坝今昔对比图片引出变化主题，先以Task 1引导学生发现合成词构成（如sand+storm=sandstorm），再通过Task 2-3结合塞罕坝故事巩固词汇，最后以Task 4制作家乡变化海报形成从规律发现到应用的学习支架。 其亮点是以塞罕坝“绿色奇迹”为真实情境，融合合成词匹配练习及eggplant等拓展例子，通过讨论变化原因、制作海报等活动，培养学生语言能力（词汇运用）、文化意识（家国情怀）和思维品质（分析表达）。学生能提升主题词汇运用及综合语言输出能力，教师可借助完整任务链和实例高效开展教学。

Unit 1 The Changing World Section B Vocabulary in use (2a—2c) Compound Words & Saihanba Story Learning Objectives 1. Discover the secret of compound words (合成词). sand + storm = sandstorm high + way = highway 2. Master core vocabulary: sandy, soil, sandstorm, government, bush, result, wide, bridge, capital, corn, product. 3. Use the words to describe changes (Saihanba story). 4. Make a poster about changes in your hometown. Lead-in: The Green Miracle of Saihanba Look at the two pictures. What do you see? How has Saihanba changed? What words can you use to describe it? • 1962: sandy land, sandstorms, few trees • Today: green forest, clean water, fresh air Task 1: Discover Compound Words Look at these words. Can you find smaller words inside them? sandstorm = sand + storm highway = high + way farmland = farm + land railroad = rail + road Compound word = word + word → new word with new meaning 2a Match and write Column A Column B 1. sand 2. high 3. farm 4. rail 5. green 6. class A. way B. land C. storm D. room E. house F. road Answers: 1-C sandstorm 2-A highway 3-B farmland 4-F railroad 5-E greenhouse 6-D classroom More Compound Words egg + plant = eggplant（茄子） pine + apple = pineapple（菠萝） fire + fly = firefly（萤火虫） scare + crow = scarecrow（稻草人） sun + flower = sunflower（向日葵） black + board = blackboard（黑板） Tip: The meaning is related to both parts, but not always a direct translation! Task 2: 2b Fill in the blanks Use: product corn bridge wide capital 1. The road used to be narrow and dirty. Now, it is ______ and clean. 2. The ______ made it convenient for villagers to travel across the river. 3. Beijing, China's ______, hosted the 2008 and 2022 Olympics. 4. Our farm has many hens. They feed on ______, vegetables, and insects. 5. A digital ______ is something you sell online without a physical form. wide bridge capital corn product 2b Answers & Language Points 1. wide 2. bridge 3. capital 4. corn 5. product • wide (adj.) 宽阔的 — opposite: narrow • bridge (n.) 桥 — build a bridge; bridge the gap • capital (n.) 首都；资本 — Beijing is the capital of China. • corn (n.) 玉米；谷物 — feed on corn • product (n.) 产品 — digital product; farm products 2c Read and fill in the blanks In 1962, Wang Shanghai moved to the ______ lands of Saihanba. There were few trees to hold the ______ together. There were ______ all the time. With support from the ______, Wang led 369 people to plant trees. They began planting ______ in sandy soil. Today, Saihanba is "the green miracle". This is the ______ of hard work and teamwork. government bush sandstorm result sandy soil sandy soil sandstorms government bushes result 2c Discussion 1. What was Saihanba like in 1962? It was sandy. There were sandstorms and few trees. 2. What is Saihanba like now? It is covered with green trees. The water is clean. 2c Discussion 3. What did people do to change Saihanba? They planted bushes and trees with the government's support. 4. Why is it called "the green miracle"? Because it was impossible to imagine, but they made it happen through hard work. 2c Discussion 5. What can we learn from the Saihanba story? • Hard work can make a difference. • Teamwork is important. • Never give up. • Protecting the environment is everyone's duty. Core Vocabulary Summary Compound words: sandstorm, highway, farmland, railroad, greenhouse, classroom Adjectives: sandy, wide, narrow, high-tech, digital Nouns: soil, bush(es), government, result, bridge, capital, corn, product Phrases: be covered with, with support from, hold the soil together, the green miracle Task 3: Summary Compound Words: word + word = new word Saihanba Change: sandy land + sandstorms → (plant bushes/trees + government support + hard work) → green miracle Theme: Change is possible when we work together and never give up. Task 4: Make a Poster — Changes in My Hometown Work in groups of 4. Choose one aspect (transport / environment / facilities). Poster structure: • In the past: used to, was/were • Now: present tense, present perfect • The change happened because... • How I feel: Vocabulary: use at least 6 core words from this lesson. Time: 8 minutes → 1-minute presentation per group Poster Example Changes in My Hometown — Transportation In the past: The roads used to be narrow and dirty. People walked or rode bikes. Now: Wide highways have been built. People can take buses or drive cars. A new railway connects our town to the city. The change happened because the government supported the development. I feel proud of the great changes! Homework 1. Review the compound words and core vocabulary. 2. Write 5 sentences with the new words (about changes). 3. Finish the poster and prepare for presentation next class. 4. Find 3 more compound words and write their meanings. $