Unit 1 The Changing World Section A Grammar Focus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“used to + 动词原形”和现在完成时语法，通过贵州“过去村庄贫穷、土路行走”与“现在现代化、高铁通行”的对比实例导入，以“过去...现在...”句子为支架，帮助学生建立时态与“变化”主题的联系。 其亮点在于情境化教学结合文化意识，如用贵州交通发展实例引导学生表达家乡自豪感，通过时态定义、时间标志词及结构表格对比培养思维品质，4b对话填空、4c短文写作等任务提升语言能力。学生能在实践中掌握语法并形成辩证认知，教师可借助清晰框架高效开展教学。

Unit 1 The Changing World Section A Grammar Focus4a-4c Learning Objectives 01 理解并掌握核心语法结构：used to + 动词原形（过去常常作某事）和have/has + 过去分词（现在完成时）的用法（学习理解）。 02 能区分 一般过去时与现在完成时的不同语境与含义，理解它们的差异并在描述 “变化” 主题中的正确使用。(应用实践)。 03 能创造性地运用本课语法，对 “交通发展与生活改善” 形成辩证的价值理解，并用英语表达对家乡发展的自豪感。(迁移创新)。 通过本节课的学习，学生能够： The life of people in Guizhou has changed a lot! What can you see? In the past... The village__________________. The area_______________________. People_______________________. Students_______________________. used to used to be poor used to be covered with sand used to walk on dirt roads used to study in old classrooms What changes can you see? Now... The village_________________. The area _________________. People_________________________. We_____________________. have/ has done has become modern has been covered with trees have taken the high-speed railway have had smart classrooms 4a Read the sentences and circle the verbs. Pay attention to the verb tenses. He became a good friend of your grandfather about 20 years ago. They haven’t seen each other for ages! We used to have to travel far to see a doctor. Our village has just built a new hospital. Many people used to work in big cities. Now, more of them have come back to live and work here. 此处 表“到现在为止” Simple Past Tense Present Perfect Tense 很久,相当于“for a long time” Simple Past Tense 一般过去时 Present Perfect Tense 现在完成时 定义 时间 标志词 句型 结构 Now Past Future 定义 一般过去时 一般过去时表示过去某个时间或某一段时间内发生的动作或存在的状态。 现在完成时 ①表示过去发生或已经完成的动作对现在造成的影响或结果。 ②表示某一动作或状态从过去某一时间开始一直持续到现在，并有可能持续下去。 时间标志词 I went to the zoo last week. 上周我去了动物园。 My father bought that watch ten years ago. 我爸爸l0年前买了那块手表。 He has already finished his homework. 他已经完成了家庭作业。 I have never seen the film before. 我以前从没看过这部影片。 一般过去时 通常与yesterday、last week、two years ago、just now、in 2022等具体的表示过去的时间状语连用。 现在完成时 通常与already、never、many times、so far、till now、recently、these days等表示频度或一段时间的状语连用。 句型结构 句式 结构（be 动词） 结构（实义动词） 肯定句 I was late for class this morning. He visited a science museum last week. 否定句 I wasn’t late for class this morning. He didn’t visit a science museum last week. 一般疑问句 Were you late for class this morning? Did he visit a science museum last week? 回答 Yes, I was./ No, I wasn’t. Yes, he did./ No, he didn’t. 特殊疑问句 When were you late for class? What did he do last wek? Simple Past Tense 一般过去时 主语+was/were+其他. 主语+was/were+not+其他. Was/Were+主语+其他? Yes,人代+was/were. No,人代+was/were+not. 特殊疑问词+was/were+主语+其他? 主语+ V过去式+其他. 主语+did+not+V原+其他. Did+主语+V原+其他? Yes,人代+did. No,人代+did+not. 特殊疑问词+did+主语+V原+其他? 句型结构 句式 结构 肯定句 I have reviewed physics for the coming exam. 否定句 I have not reviewed physics for the coming exam. 一般疑问句 Have you reviewed physics for the coming exam? 回答 Yes, I have. /No, I haven’t. 特殊疑问句 What have you reviewed for the coming exam? Present Perfect Tense现在完成时 主语+have/has+V过去分词+其他. 主语+have/has +not+V过去分词+其他. Have/Has+主语+V过去分词+其他? Yes,人代+have/has. No,人代+have/has+not. 特殊疑问词+have/has+主语+V过去分词+其他? (3)一般疑问句 Did+主语+ use to do sth.?/Used+主语+ to do sth.? (1)肯定句 主语+used to do sth. (2)否定句 主语+didn’t use to do sth./主语+usedn’t to do sth. Used to Used to 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. Grammar 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） 易混短语辨析 拓展：延续性动词/非延续性动词 一般过去时既可以用延续性动词, 也可以用短暂性动词(瞬间动词/非延续 性动词)，没有任何限制！ 限制只存在于现在完成时中（特别是与 for / since 连用时）。 e.g. He died two years ago. He has died for two years. ❌ 应改为：He has been dead for two years. ✅ 常见的短暂性动词 → 延续性动词转换: die → be dead leave → be away borrow → keep buy → have open → be open close → be closed join → be in / be a member of begin/start → be on arrive/reach/get to → be in/at marry → be married 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. 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 4b Complete the conversation with the correct forms of the verbs in brackets. 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). 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 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 no bridges dirt tracks products market industry Now high bridges highways, railways, and wide roads People become richer and happier 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） TIME I visited my grandma last week.。 We used to live in a small flat. They have built a new hospital. 主语 + have / has + done He gets up early in the morning. 2. Whose birthday is it? 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。 Choose to do: 画一幅关于你家乡“过去 vs 现在”的对比画，并写2–3个句子来描述这些变化。（如used to, have/has done, simple past） 学习目标 通过听读对话，获取Li Rui家乡在交通、医疗、购物、环境等方面的具体变化信息，完成表格填写；识别并区分对话中一般过去时（描述过去）和现在完成时（描述变化结果）的形式和意义；运用“used to... But now...”的对比结构，概括家乡变化的主要内容。 01 运用一般过去时和现在完成时，描述Li Rui家乡的变化（如“It used to take half a day, but now it takes only an hour”）；分析听力对话中人物的情感态度（如Bob的惊叹、Li Rui的自豪），判断变化对人们生活的积极影响；在角色扮演中模仿对话的语调和表达方式，运用目标语言进行交流。 02 评价家乡变化带来的利弊，表达自己的观点和感受（如“What do you think is the most important change?”）；运用所学语言，在真实或模拟的情境中讨论自己家乡近十年的变化，并表达情感态度。 03 通过本节课学习，学生能够： Thanks for watching! $