Unit 1 课时3 Section A Grammar Focus 含交互动画（课件）英语新教材人教版九年级上册

该初中英语课件聚焦一般过去时、现在完成时及“used to”用法，通过Li Rui家乡今昔对比图片导入，引导学生观察“PAST”与“NOW”的动词形式差异，搭建从具体情境到语法规则的学习支架，衔接自然。 其亮点在于采用情境化任务（如小组合作撰写George给Mike的回信）、易混短语对比辨析（used to do/be used to doing等）及批判性思维讨论（变化的利弊），助力语言能力（情境运用）、思维品质（对比分析）和学习能力（合作探究）提升。总结用表格与例句清晰归纳，练习梯度分明，能帮助学生巩固语法并灵活运用，教师可直接采用多样化活动提升教学效率。

nullUnit 1 The Changing World 第三课时 Section A Grammar Focus 课型：语法课 主讲人：XXX Presentation 02 Practice 03 Lead-in 01 Production 04 CONTENTS Language points 06 Exercises 07 Summary 05 Homework 08 cb7c5ce8-4c1b-4a9a-b3c4-4365f841c3f0.source.default.zh-Hans 2 学习目标 通过观察4a中的例句，识别一般过去时和现在完成时的形式差异（动词形式、时间标志词）；回顾两种时态的基本结构（一般过去时：主语+动词过去式；现在完成时：主语+have/has+过去分词）概括两种时态的核心区别——一般过去时只谈过去（动作发生在过去，与现在无关），现在完成时连接过去与现在（强调过去动作对现在的影响或结果） 01 根据语境中的时间状语（yesterday, ago, last year vs already, yet, just, for, since）和句意，判断该用一般过去时还是现在完成时；在4b对话和4c短文的填空练习中，正确运用两种时态，完成控制性语言输出；运用两种时态描述家乡或身边的变化，解释变化的原因和影响。 02 评价家乡发展变化带来的利弊，表达自己的观点（如“经济发展是否一定能带来幸福？”）；运用所学时态，以小组为单位创作一段关于"家乡2050"的对话或短文，进行创造性语言输出。 03 通过本节课学习，学生能够： 01 Lead-in Look! This is a picture of Li Rui’s hometown. Let’s find out the changes there. Past now now What did Li Rui's hometown look like in the past? Can you use 'used to' to describe it? Past There _______ be rough roads. The hills _______ be covered with sand. used to used to now Past Now people _________ new wide roads. The hills __________ covered with trees. have been have built What does it look like now? What changes have taken place? Look at these sentences. What's the difference in their verb forms? There used to be rough roads. The hills used to be covered with sand. Now people have built new wide roads. The hills have been covered with trees. Simple past tense Present perfect tense Today we are going to learn how to compare “simple past tense" and “present perfect tense“. now past 02 Presentation After visiting Li Rui's hometown, George wrote an email to his friends in the U.S., sharing his experiences. Let’s read! Simple Past Used to Present Perfect Which sentences talk about a past action? Which talk about a past habit? Which talk about a result now? Dear Mike, I'm having a great time in Li Rui's hometown! Great changes have taken place here. Twenty years ago, my father became a good friend of Li Rui's grandfather. They haven't seen each other for ages! In the past, people used to have to travel far to see a doctor. But now the village has built a new hospital. Many young people used to work in big cities. But now more of them have come back to live and work here. What amazing changes! Yours George (3)时间标志词 ____________________ (1)含义： 表示____________________________________________ (2)结构：主语 +___________ Learn about the simple past tense. 动词过去式 ago, yesterday, last... 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. 一般过去时 一般 过去时 (3)时间标志词 ______________________________ (1)含义：表示__________________________________ 并意味着这种动作 _________________ (2)结构：主语 +used to​ + ______________ Learn about the simple past tense. 动词原形 used to,but now,强调 “今昔对比” 过去的某种经常性、习惯性的动作或行为. Used to Used to 目前已经不存在 He used to like coffee. 只能用 一般过去时 (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. Learn about the simple past tense. 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? 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 (3)时间标志词 ____________________ (1)含义：表示____________________________________ _________________________________ (2)结构：主语 + have/has​ +______________ Learn about the present perfect tense. 动词过去分词 for ages, just, since, already, yet, now等 过去发生的动作，对现在造成影响 / 结果； 从过去持续到现在的动作 / 状态 现在完成时 一般 过去时 She has kept this book for two weeks. Learn about the grammar rules through a timeline. 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 一般现在时 【主语 + used to+动词原形】 过去习惯/状态（现在已改变） NOW TIME 03 Practice Choose the correct tense to complete each sentence. I _________ (saw / have seen) the movie last week. She _________ (lived / has lived) here since 2015. They ____________ (haven't finished/ didn't finish) their work yet. My father _________ (bought / has bought) a new car yesterday. We ____________ (knew / have known) each other for over ten years. The old library ____________ (closed / has closed) down last month. He ____________ (finished / has finished) his homework. He can go out now. I _______________ (have never been / never went) to Beijing before. They ____________ (moved / have moved) to this neighborhood in 2018. She ____________ (didn’t call / hasn't called) me since last Tuesday. saw has lived haven't finished bought have known closed has finished have never been moved hasn't called Each sentence has ONE mistake. Find it and correct it. He has bought a new phone yesterday. I have seen her three days ago. She didn't finish her project already. They have lived in this city since five years. I have went to the new museum last Sunday. My sister is a teacher since 2018. We didn't see each other for a long time. haven't seen saw hasn't finished for went has been bought Complete the conversation with the correct forms of the verbs in brackets. 4b 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 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). Complete the passage with the correct forms of the verbs in brackets. Why are local people richer and happier than before? 4c was be made have taken has built take have improved were 04 Production Remember the email George wrote to Mike? Now Mike has written back. He says he also wants to visit Li Rui's hometown. But before he comes, he wants to know more about the changes. Let's work in groups and help George reply to Mike! Production 同伴合作或小组合作完成 任务：四人一组，合作完成一封"George给Mike的回信"，描述Li Rui家乡的变化。 步骤 内容 时间 Step 1 小组讨论：选择3-4个方面的变化（交通、环境、医疗、购物、教育等） 1分钟 Step 2 每人负责写1-2个方面的变化（使用本课所学的两种时态） 2分钟 Step 3 小组整合，形成一封完整的回信 1分钟 Step 4 准备展示（选一名代表朗读或全组分工朗读） 1分钟 Production 同伴合作或小组合作完成 Make a report to the class. Dear Mike, Thanks for your email! You asked about the changes in Li Rui's hometown. Here is what I've learned. In the past, the roads __________. But now they ___________. People used to ___________. However, great changes have taken place. The village __________. Also, the environment _____. It used to ______, but now it _______. I'm sure you will love it here! When are you coming? Yours, George Acting Pronunciation Fluency We've seen many positive changes in Li Rui's hometown. But are all changes good? Can you think of any disadvantages of fast development? Production Brainstorm and share New roads may destroy old forests. Not All Changes Are Good. Changes can bring problems too. Fast food restaurants – convenient but unhealthy. So when we talk about changes, we should think critically. Development is important, but we should also protect our environment and traditions. Balance is the key. Some traditions disappeared. 05 Summary Summary Unit 1 The Changing World (Section A Grammar Focus) 06 Language points Let's learn and take notes. benefit /ˈbenɪfɪt/ v. 得益于；使受益 n. 优势；益处 固定搭配：benefit from（从……中受益），be of benefit to（对……有益） 词性转换：形容词 beneficial（有益的） 用法：作动词时及物（使受益）或不及物（得益）；作名词时可数或不可数。 辨析：benefit 强调“获得好处”；advantage 指“有利条件或优势”。 词 讲 练 Local people have benefited a lot from the new railway.（当地人大大受益于新铁路。） The new road is of great benefit to the villagers.（新路对村民大有好处。） 例 填空：We have ________ (benefit) a lot from the government's support. 翻译：读书对我们有益。 benefited Reading is of great benefit to us. Let's learn and take notes. convenient /kənˈviːniənt/ adj. 方便的 词性转换：名词 convenience（方便），副词 conveniently（方便地） 固定搭配：It is convenient for sb. to do sth.（对某人来说做某事方便） 反义词：inconvenient（不方便的） 用法：主语可以是物或it作形式主语。 词 讲 练 The new railway is very convenient.（新铁路非常方便。） It is convenient for me to go to school by bus.（坐公交上学对我来说很方便。） 例 填空：Online shopping is very ____________ (convenience). 翻译：住在这个城市很方便。 convenient It is convenient to live in this city. Let's learn and take notes. business /ˈbɪznəs/ n. 生意；商业 固定搭配：do business with（与……做生意），on business（出差） 词性转换：形容词 busy（忙碌的），名词 businessman（商人） 用法：不可数名词，指“商业活动”或“生意”。 词 讲 练 He is able to make business deals with ease.（他能轻松地谈成生意。） My father is on business in Shanghai.（我父亲在上海出差。） 例 填空：Our company does _________ with many countries. 翻译：他想自己做生意。 business He wants to start his own business. Let's learn and take notes. with ease /wɪð iːz/ 短语 轻而易举地 用法：在句中作状语，修饰动词，表示“做某事毫不费力”。 词性转换：名词 ease（容易；自在），形容词 easy（容易的），副词 easily（容易地） 同义表达：easily 词 讲 练 He can get to places on time and make deals with ease.（他能按时到达各地，并轻松地谈成生意。） She solved the problem with ease.（她轻松地解决了这个问题。） 例 填空：He finished the work __________ (with ease / with easily). 翻译：她能轻松地完成这项任务。 with ease She can complete the task with ease. 07 Exercise 一、选词填空。 In the past, it was difficult for villagers to sell their (1) _________ in big cities because of poor (2) _________. The roads were narrow and it (3) _________ a long time to travel. Now things have (4) _________. The new railway is very (5) _________. People can travel (6) _________. This has (7) _________ great changes in their lives. The village has become a tourist attraction. The (8) _________ of the local shop does good (9) _________ with tourists. Local people have (10) _________ a lot from these changes. products benefit convenient manager business with ease used to take bring about change transport product transport took changed convenient with ease brought about manager business benefited 1. They haven't seen each other for ages! ——他们好多年没见面了！ 2. It's the most high-tech library I have ever visited. ——这是我参观过的最具科技感的图书馆。 3. A journey that used to take a day now takes only a few hours. ——过去需要花一天的路程现在只需要几个小时。 4. 政府已经修建了数千公里的公路和铁路。 ——The government has built thousands of kilometres of highways and railways. 5. 当地人的生活已经大大改善了。 ——The lives of local people have greatly improved. 二、翻译。 08 Homework 基础作业：完成课本第9页4b和4c的填空练习，并将两篇文本工整地抄写在作业本上。 进阶作业：写一段话（60-80词），用一般过去时和现在完成时描述你所在城市或家乡的三个变化。 拓展作业：以"Changes in My Hometown"为主题，做一个小型调查（采访家人或邻居），了解他们记忆中家乡的变化，然后制作一份英文报告或PPT，下节课进行展示。 Homework Thank you for listening! ⏳ 时态闯关 Past vs used to vs Present Perfect ✅ 0 ❌ 0 📌 1/10 第 1 题 ✅ 提交答案 ➡️ 下一题 🔄 重新开始 🏆 得分：0 / 10 太棒了！ 🔄 再来一次 🔄 重置所有 $