Unit 1 The Changing World Section A 4a-4c 课件 2026-2027学年人教版九年级英语上册

该初中英语课件聚焦Unit 1 The Changing World，核心围绕used to+动词原形、一般过去时与现在完成时的语法结构、语义功能及语境差异展开。课堂导入通过句子时态辨析活动激活学生对一般过去时和现在完成时的旧知，再引入used to句型，形成“观察识别—归纳规则—对比差异—语境运用”的学习支架。 其亮点在于融合语言能力、思维品质与文化意识培养，通过“贵州交通发展”等真实话题语境，引导学生用目标语法描述家乡变化，渗透对家乡发展的认同感。采用时间轴对比、易混短语辨析等方法，锻炼学生逻辑思维与归纳能力，多样化练习（对话/短文填空）提升语言运用能力，助力教师高效开展语法教学，帮助学生养成自主探究与学以致用的习惯。

Unit 1 The Changing World Section A 4a-4c 2026新人教版九上 学习目标 一、语言能力 能够观察、识别并归纳used to + 动词原形与现在完成时（have/has + 过去分词）的核心语法结构、语义功能及标志性词汇（yet, ever, just, for, since）；精准区分 used to do、一般过去时与现在完成时的语境差异，熟练运用两种语法结构完成对话填空、短文填空等习题，能够借助目标语言准确描述家乡事物、生活的过去与现在的对比变化，形成规范、流畅的英语表达能力。 二、学习能力 掌握“观察语法结构—归纳用法规则—区分时态差异—语境实战运用”的自主学习方法，能够独立完成课时对话、短文填空练习，主动梳理不同时态的适用场景与用法区别；在语言练习和话题表达中，主动整合所学语法知识，灵活运用知识解决语境运用问题，逐步养成自主探究、归纳总结、学以致用的英语学习习惯，提升语法运用与综合解题的自主学习能力。 三、文化意识 依托“交通发展与生活改善”的话题语境，感知家乡发展变迁的美好成果，了解社会发展带来的生活便利与进步；能够结合所学英语知识客观、正向地用英语介绍家乡的发展变化，树立对家乡发展的认同感与自豪感，培养热爱家乡、关注生活发展的积极文化心态，形成正向的生活与发展认知。 四、思维品质 通过对比分析 used to do、一般过去时、现在完成时的语义差异与使用场景，锻炼对比辨析、归纳总结的逻辑思维能力；围绕“交通与生活发展”话题，辩证看待生活的过往与当下的变化，跳出单一语言学习维度，结合语法知识进行创造性、逻辑性的英语表达，提升语言运用的思辨性与创新性思维。 01 Lead-in Discuss Look at these sentences, tell the verb tenses. He had breakfast at home yesterday . I have finished my homework already. Simple Past Present Perfect He has sold vegetables and fruits on live streaming platforms for two years. The reporter interviewed the farmers last week. Our hometown has changed a lot since 10 years ago. Look at these sentences, tell the verb tenses. Present Perfect Simple Past Present Perfect Discuss Look at these sentences, tell the verb tenses. My father used to lives in a small village, but now he livea in a big city. Today we will focus on exactly these three ways of talking about the past and present. used to 02 Presentation Circle the verbs. Work in pairs, Which sentences talk about a past action? Which talk about a past habit? Which talk about a result now? Grammar Focus: Simple Past Tense 结构: 主语 + 动词过去式 (V-ed) + ... 时间标志词 : yesterday, in +过去年代, last week, 一段时间+ago 含义：描述过去发生的具体事件（动作已结束，与现在无关） The man was very busy last week. Grammar Focus: Present Perfect Tense 结构：主语 + have/has​ +其它。 时间标志词 already, yet, just, so far, for+一段时间, since+... 含义：过去发生的动作，对现在造成影响 / 结果 表示：从过去持续到现在的动作 / 状态 She has kept this book for two weeks. Grammar Practice 1. The local government ______ massive improvements to the infrastructure since 2018. A. makes B. made C. has made D.will make 2. Technological achievements ______ a deep influence on how we communicate yesterday. A. have had B. had C. has D. having C B 3. The town built a new high-speed railway three years ago. (Change to Present Perfect using ‘since’) The town ____ ____ a new high-speed railway ______ three years ago. has built since 4. They have experienced great achievements in environmental protection for a decade. (Change to Simple Past using ‘in 2014’) They _________ great achievements in environmental protection ____ ____. achieved in 2014 Grammar Focus: used to 结构: 主语 +used to​ +动词原形 含义：表示过去的某种经常性、习惯性的动作或行为. 并意味着这种动作 目前已经不存在 时间标志词 : used to,but now,强调 “今昔对比” He used to like coffee, but now he likes drinking tea . Grammar Focus: used to 句子结构 否定句:主语+didn’t use to do sth./主语+usedn’t to do sth. 肯定句 ：主语+used to do sth. 一般疑问句 : Did+主语+ use to do sth.?/Used+主语+ to do sth.? He didn’t use to like coffee. /He usedn’t to like coffee. _ Did he use to like coffee?/Used he to like coffee? _ Yes, he did./No,he didn’t. She used to have curly hair. used to do 表示过去习惯性的动作或经常性的状态，现在已经不存在。 She is used to getting up early. be/get used to doing 习惯于做某事（可用于现在、过去、将来等多种时态） The knife is used to cut fruit. be used to do 被用来做某事（是被动语态, 用于多种时态） Grammar 易混短语辨析 主语 + have / has + done 1.主语+be(were,was) 2.主语 + 动词过去式 一般过去时 现在完成时 1.主语 + be (am, is, are) 2.主语 + 动词原形/单三 NOW 一般现在时 Grammar rules 【主语 + used to+动词原形】 过去习惯/状态（现在已改变） Summary TIME A: ______ you ______ (be) to the new library yet? B: No, I ______________ (not know) there was a new library. When did it ______ (open)? A: It ____________ (open) last Friday. I _____________ (go) there with my grandpa on Saturday night. B: ______ you ______ (like) it? A: Of course! It’s the most high-tech library I __________ ever __________ (visit). B: Oh, what ______ you ______ (see) there? A: There are sections with books about science and Chinese culture, as well as a huge section with children’s books. I also ______ (read) some digital books on the computer. My grandpa _____________ (listen) to some audio books because he can’t see well. B: Cool! I ________________ (bring) my little brother there tomorrow. Complete the conversation with the correct forms of the verbs in brackets. 4b Have been didn’t know open opened went Do like have visited did see read listened will bring 对过去不知道某事的陈述 关于科学和中国文化的书籍 有声读物 have been to… 去过某地（现在已经回来） 询问现在的感受 read 的过去式还是 read Complete the passage with the correct forms of the verbs in brackets. Why are local people richer and happier than before? 4c In the past, it ______ (be) difficult to travel in Guizhou. In many places, there used to ______ (be) no bridges to cross over mountains and rivers, and most roads were just dirt tracks. This ______ (make) it difficult for locals to bring products to the market or to develop industry. Now great changes ____________ (take) place. The government ___________ (build) thousands of kilometres of highways, railways, and wide roads. It has also built many high bridges over mountains and rivers. A journey that used to _________(take) a day now takes only a few hours. As a result, the lives of local people __________________ (improve). They are much richer and happier than they once ________ (be). was be made have taken has built take have improved were make it + adj. + to do sth.使做某事… 强调对现在的影响 was be made have taken has built take have improved were n.泥土 n.小路 adj.宽阔的 4c who has helped make life better? Parents? Teachers? Workers? hard work of many people and the support of the government. 1.In Guizhou, My parents have worked hard to give me a good education. The workers have built a new park for us. Who Made the Changes Possible? 2.In our hometown, Change makes life better. Thinking Thinking New roads may destroy old forests. Changes can bring problems too. Not All Changes Are Good We should balance development with health. What should we do? Fast food restaurants – convenient but unhealthy. We should ... Thinking 1.My grandfather ______ drink coffee every morning, but now he prefers tea. A. used to B. is used to C. gets used to 2.He ______ be shy, but now he enjoys giving speeches in public, ______ he? A. used to;didn’t B. used to; doesn’t C. is used to; isn’t 3.— Did your sister ______ stay up late to study? — No, she ______. But now she ______ working until midnight. A. used to; didn’t; is used to B. use to; didn’t; gets used to C. used to; wasn’t; is used to 4．—Tina, when did you come to Guangyuan? —Oh, many years ago. I ________ here since I was five. A．have gone B．have been C．was D．am 4．—Peter, did you play table tennis with your friends after school yesterday? —No, I didn’t. We ________ vegetables in our school garden. A．water B．have watered C．watered D．are going to water Exercise A B B B C Homework Need to do: 完成课本4b、4c的错题订正，在对话和短文中正确运用“I used to...”, “Have you ever...?”描述变化。 02. 能力拓展 采访你的同学或伙伴描述他们社区至少2个变化，然后用英语完成采访描述。 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. ‹#› $