Unit1 SectionB 1a-1f 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“蒙内铁路如何改变生活”展开，核心知识点为通过说明文阅读理解过去-现在对比，运用used to和现在完成时表达变化。课堂导入从1a家乡铁路讨论激活已知，1b标题图片预测建立阅读期待，以数字、时间、人物观点为支架帮助学生梳理文章结构。 其亮点在于融合语言能力与文化意识培养，如1c数字匹配训练信息提取能力，1f讨论用句型支架促进表达，18页写作任务结合used to/现在完成时实现语言输出。通过中非合作案例渗透人类命运共同体意识，结构化活动助力教师高效教学，提升学生跨文化沟通与思维品质。

Unit 1 The Changing World Section B 1a-1f On the Fast Track 世界因变化而联通 · Changes connect the world UNIT 1 · SECTION B 02 / 21 这节课我们要读懂一条铁路如何改变生活 Content Goal 理解什么 能解释蒙内铁路的变化 以及给当地人带来的便利 Reading Goal 怎么读 抓数字、时间和人物观点 看懂说明文的过去-现在对比 Output Goal 产出什么 能用 used to / 现在完成时 写一段家乡或世界变化 Reading strategy: 标题 + 图片 → 预测 → 读数字/时间/人物观点 → 总结影响 UNIT 1 · SECTION B 03 / 21 铁路让两地生活大不同 1a · Think & Share Does your hometown have a train system? How does it benefit local lives? 交通更便利 出行更快 带动经济 1b · Predict Look at the title and the picture. What is the text probably about? Title: On the Fast Track 预测 3 件事： 1. Where is it? 2. What changed? 3. Who benefits? UNIT 1 · SECTION B 04 / 21 先读原文，再抓关键 On the Fast Track Para 1 · Background In 2017, the new 480-kilometre Mombasa-Nairobi railway was opened. Before then, the only transport links between Mombasa, Kenya's main port, and Nairobi, Kenya's capital, were rough roads and an old railway line built in 1901. The old trains were very slow. It took 10 hours to get to Nairobi from Mombasa by train. Para 2 · New railway However, the new railway, built with China's help, has already cut the travel time between Mombasa and Nairobi to about four hours for passengers. Now, more than two million people use it every year. Para 3 · People's views Local Kenyans have benefited a lot from the new railway. A government worker said... A businessman said... A supermarket manager said, "Food used to take hundreds of lorries to carry between the two cities, but now it takes only two or three trains." As a result, people now have more fresh food to eat. Para 4 · Conclusion Although China and Kenya are far away from each other, the railway shows how different countries can work together to build a better world. 听一句 → 跟一句 → 标出数字 / 时间 / 人物 / 观点 Background New railway Views Conclusion UNIT 1 · SECTION B 05 / 21 这些词是读懂铁路故事的钥匙 A 类：必须讲 · 配语境 + 音标 + 词性 + 中文 railway /ˈreɪlweɪ/ n. 铁路 the new 480-kilometre Mombasa-Nairobi railway transport /ˈtrænspɔːt/ n./v. 运输 the transport of food link /lɪŋk/ n. 联系；纽带 transport links rough /rʌf/ adj. 崎岖的 rough roads capital /ˈkæpɪtl/ n. 首都 Kenya's capital passenger /ˈpæsɪndʒə/ n. 乘客 for passengers convenient /kənˈviːniənt/ adj. 便利的 It is very convenient. benefit /ˈbenɪfɪt/ v. 使受益 have benefited a lot from lorry /ˈlɒri/ n. 卡车（英） hundreds of lorries fresh /freʃ/ adj. 新鲜的 more fresh food UNIT 1 · SECTION B 06 / 21 看懂这些词就够了 B 类：识别即可 · 中文释义 + 原文语境 Mombasa 蒙巴萨（肯尼亚港口城市） between Mombasa and Nairobi Nairobi 内罗毕（肯尼亚首都） from Mombasa to Nairobi Kenya 肯尼亚（东非国家） Local Kenyans port 港口 Kenya's main port government 政府 A government worker said businessman 商人 A businessman said manager 经理 a supermarket manager C 类：不影响理解的地名细节 · 课堂不花时间 UNIT 1 · SECTION B 07 / 21 文章四段，一段一个任务 On the Fast Track Para 1 Background 2017 年新铁路 旧铁路 1901 10 小时 Para 2 New railway 约 4 小时 超 200 万人/年 Para 3 People's views 政府工作人员 商人 超市经理 Para 4 Conclusion 不同国家合作 共建美好世界 橙色 = 过去 Past 绿色 = 现在 Now UNIT 1 · SECTION B 08 / 21 五种语法点，一句一个例句 used to do 过去常常做 Food used to take hundreds of lorries but now only two or three trains. 考点：过去 → 现在不再 现在完成时 have/has + 过去分词 The railway has already cut the travel time to about four hours. 考点：过去影响现在 一般过去时被动 was/were + 过去分词 The new railway was opened in 2017. The old line was built in 1901. 考点：事物被建造/开通 It takes/took ... to do 做某事花费... It took 10 hours to get to Nairobi. Now it takes about four hours. 考点：时间/工具花费 although 让步 不与 but 同用 Although China and Kenya are far away, the railway shows we can work together. 考点：虽然…但是… UNIT 1 · SECTION B 09 / 21 长难句拆解：先找主干，再认从句 ① although 让步 + how 宾语从句 Although China and Kenya are far away from each other, the railway shows how different countries can work together to build a better world. 拆解：主干 = the railway shows … ｜ 粉色 = 虽然…（让步）｜ 绿色 = shows 的内容（宾语从句） ② who 定语从句 Many changes have taken place in the town over the last few years, and the people who live here have become rich. 拆解：who live here 修饰 the people —— 哪些人变富了？住在这里的人（who = the people，从句里作主语） ③ 过去分词作后置定语 = which was … an old railway line built in 1901 = an old railway line which was built in 1901 the new railway, built with China's help, has already cut the travel time. 拆解：built… 修饰前面的名词，等于 which was built… 的省略 —— 被动、省略、更简洁 UNIT 1 · SECTION B 10 / 21 先找事实，再找证据 L1 · Fact 找事实 When was the new railway opened? How long is the new railway? How many people use it every year? L2 · Evidence 找证据 Opened in 2017 In 2017, the railway was opened. 480 km 480-kilometre Mombasa-Nairobi railway > 2 million more than two million people use it UNIT 1 · SECTION B 11 / 21 再问原因，再联生活 L3 · Why / How 深层 Why did the new railway cut the travel time? 关键词：faster / more people / fresh food How has the railway changed food transport? 关键词：faster / more people / fresh food L4 · Transfer 迁移 Can you name a similar change in China? 关键词：high-speed railway / help / share How can countries work together to build a better world? 关键词：high-speed railway / help / share UNIT 1 · SECTION B 12 / 21 1c · Match the numbers with the information. 先不看原文 · 凭记忆把数字和意思配对，把字母写进方框 Numbers 数字 1 2017 2 1901 3 over two million 4 480 5 10 6 about four Information 信息（a-f） a the hours it takes to reach Nairobi from Mombasa now by train b the year the new railway was opened c the length of the Mombasa-Nairobi railway in kilometres d the number of people who use the new train every year e the year the old railway line was completed f the hours it used to take to reach Nairobi from Mombasa by train 教师核对：1-b · 2-e · 3-d · 4-c · 5-f · 6-a UNIT 1 · SECTION B 13 / 21 1d · Read again and answer the questions. 回到原文找证据 · 每题先划出证据句，再在横线上写答案 What type of writing is the text? What was the problem with the old railway? How have local Kenyans benefited from the new railway? Why is it important to make food transport easier? What does "on the fast track" mean? 提示关键词：① genre 体裁 ② slow / 10 hours ③ rich / fresh food ④ costs / fresh ⑤ fast development UNIT 1 · SECTION B 14 / 21 1e · Complete the table with the information from the text. 边填边读 · 填完这张表 = 捋清整篇文章 Paragraph Part Information Para 1 introduction The new train line was ______ in 2017. Para 1 old railway completed in ______ ; slow; took ______ hours Para 2 new railway built with ______'s help; about ______ hours; ______ people use it every year Para 3 comments government worker / businessman / supermarket manager are all ______ Para 4 conclusion different countries can ______ together to build a better world 关键词提示：opened · 1901 · 10 hours · China's · about four · over two million · happy · work together UNIT 1 · SECTION B 15 / 21 1f · Discuss the questions. 组内讨论 · 每人至少说一句完整的话（用上句型支架） 1. Have you seen or heard of any similar changes in the world over the last several years? Where was it and what happened? 句型支架：I have seen / heard of ______. In ______ (year), ______ was built / opened. It changed ______. 提示：high-speed railway / new bridge / clean energy 2. In what other ways can China work together with other countries to build a better world? 句型支架：China can work together with other countries to ______, for example ______. 提示：share technology / help build roads / protect environment UNIT 1 · SECTION B 16 / 21 看原文 → 看导图 → 自己说 Step 1 看原文回答 读 4 段，回答： When? Where? What? Who? Step 2 看导图复述 用 4 个关键词： Background / New railway / Views / Conclusion Step 3 合书自己说 不看课本，用 3 句话说清楚 这条铁路的变化和影响 UNIT 1 · SECTION B 17 / 21 三句话讲清铁路故事 Topic 总起 The text is about the Mombasa-Nairobi railway. 点明话题 Compare 对比 In the past, the old railway was slow. Now the new railway has cut the travel time and changed people's lives. 过去 vs 现在 So What 升华 It shows how different countries can work together to build a better world. 意义/影响 UNIT 1 · SECTION B 18 / 21 写一写你身边的“快车道” Write about one change in your hometown or in the world. Use used to / have/has + done. Topic: This text / change is about __________. Compare: In the past, __________. Now, __________. So What: It shows / means __________. UNIT 1 · SECTION B 19 / 21 句型仿写：把今天的从句用起来 Pattern 1 although + how Although 短句, 主语 shows how … 教材原句: Although China and Kenya are far away, the railway shows how countries can work together. Although ______________, ______________ shows how ______________. 示例: Although my hometown is small, the new library shows how life is getting better. Pattern 2 who 定语从句 名词 + who + 句子, + 谓语 … 教材原句: The people who live here have become rich. The ________ who ________ have ________. 示例: The students who read every day have made great progress. Pattern 3 It takes … to do It takes/took 时间 to do … 教材原句: It took 10 hours to get to Nairobi, but now it takes only about four hours. It used to take ________ to ________, but now it takes ________. 示例: It used to take a whole day to travel to Beijing, but now it takes only 3 hours. 先口头说一句，再动笔写一句 —— 仿写是从句走向作文的桥 UNIT 1 · SECTION B 20 / 21 课后继续“走”这条铁路 1. Read the text 'On the Fast Track' aloud twice. 朗读课文两遍。 2. Finish 1c and 1e in the textbook. 完成课本 1c 数字匹配和 1e 表格。 3. 句型仿写：用 although / who / It takes… 各写一句。Write one sentence with each pattern. 4. Preview Grammar Focus 4a-4c. 预习下一课时语法聚焦。 变化让世界更美好 Changes connect us. Let's build a better world together. Unit 1 · Section B 1a-1f · The End $