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

该初中英语课件聚焦一般过去时与现在完成时辨析，围绕“家乡变化”主题，通过视频听力填空、句子动词时态识别等任务导入，结合时间轴工具搭建从具体例句到时态定义再到差异分析的学习支架，帮助学生系统掌握语法知识。 其亮点在于融合语言能力、思维品质与文化意识培养，以贵州交通变化等真实案例对比过去与现在，设计即学即练、句型转换等多样化练习，引导学生主动总结时间标记和used to等语言点规律。既提升学生时态运用与逻辑分析能力，又增强家国情怀，教师可直接用于语法教学，提高课堂效率。

Unit1 The Changing World What changes have taken place around you? Section A(4a-4c) Grammar Focus Thinking Quality Learning Ability Cultural Awareness Language Ability Learning Objectives Use key words and sentence patterns to talk about hometown changes freely; use simple past and present perfect tenses correctly. Learn about hometown changes, feel social progress and build our love for the beautiful hometown. Get key info from texts, practice in groups and improve our English learning skills actively. Compare past and present life to develop observation, analysis and logical thinking skills well. When I ____________ young, I’d listen to the radio. Waiting for my favorite songs. When they___________, I’d sing along. It____________me smile. Miguel: Wait...What happened? Héctor: He _________________ (forget). When there’s no one left in the living world who remembers you, you disappear.We call it the “Final Death”. was played 01 Task 1: Listen to the video clips and complete the blanks. made has been forgotten simple past tense 一般过去时V-ed present perfect tense 现在完成时have done 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. 02 Task 2: Read the sentences and circle the verbs. Pay attention to the verb tenses. 一般过去时 simple past tense 现在完成时 present perfect tense 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. 03 Task 3: The defination of these two tenses. past present(now) future 定义 现在完成时 present perfect tense 一般过去时 simple past tense simple past tense 一般过去时 ①过去具体动作 ②过去状态 ③过去习惯性动作 I used to work in a big city. He was sick last week. When I was a child, I often rode my bike to school. 主语 + was/were + 其他. 主语 + v过去式 + 其他 句式结构 present perfect tense 现在完成时 ①过去动作对现在的影响 ②从过去持续到现在的状态或动作 We have just built a new hospital. They haven't seen for ages. past present We built a new hospital. We don’t travel far to a hospital. past present didn’t see 主语 + have/has been + adj. 主语 + have/has done + 其他 句式结构 past present(now) future 一般过去时 simple past tense 现在完成时 present perfect tense 用于描述过去的行为或事件，常用于讲故事、叙述或谈论过去的经历。 ①过去动作对现在的影响 ②从过去持续到现在的状态或动作 ①过去具体动作 ②过去状态 ③过去习惯性动作 04 Task 4: Know the differences between these two tenses. Exercise：Tell the different tenses in these sentences. ①I went to see the movie yesterday. 昨天我去看了那部电影。 ②I have seen the movie already. 我已经看过那部电影了。 ➡️仅说明昨天去看了电影这件事，和现在无关; ➡️说明看电影这个动作发生在过去，说话人现已对电影内容有所了解。 simple past tense 一般过去时 现在完成时 present perfect tense 1.He ____________ ____________ ___________ yesterday.（他昨天买了一本书。）​ 2.I ___________ __________ __________ in 2005.（2005 年我住在北京。）​ 3.He ___________ ___________ ___________ Beijing.（他去了北京。） ​→暗含他现在不在说话地点 4.I __________ ___________ ___________Beijing for ten years.（我在北京住了十年了。）​ 5. ____________ ___________ ___________ twenty minutes ago.（二十分钟前雨停了。）​ 6. ___________ ___________ __________ for an hour.（雨已经下了一小时了。） →暗含现在可能还在下。 bought a book lived in Beijing has gone to have lived in The rain stopped It has rained ✍️【即学即练】补全句子。 时间状语 （时间标志词） 初中阶段是奠定英语能力的关键期，科学研究显示，完成语法练习能有效优化学习策略。科学研究显示，跟读新闻广播能有效培养自学能力。进阶策略，多感官参与能提升记忆效果。克服学习障碍，制作单词记忆卡能有效建立正反馈。培养语言能力，翻译歌词能有效增强动机。另一方面，多感官参与能提升记忆效果。掌握核心要点，制作思维导图能有效建立知识体系。坚持科学训练语言素养自然会逐步提升。 含有yesterday的词组 the day after yesterday, yesterday morning / afternoon / evening last+时间 last year / month / week / night... 时间段+ago three days ago... in+过去时间 in 1930s, in the early days... 其他 once upon the time, when sb was... I visited museum yesterday. He was sick last week. We had a school trip three days ago. I was born in 2013. When I was a child, I often rode my bike to school. 05 Task 5: Learn some time markers of tenses. simple past tense一般过去时 初中阶段是奠定英语能力的关键期，科学研究显示，完成语法练习能有效优化学习策略。科学研究显示，跟读新闻广播能有效培养自学能力。进阶策略，多感官参与能提升记忆效果。克服学习障碍，制作单词记忆卡能有效建立正反馈。培养语言能力，翻译歌词能有效增强动机。另一方面，多感官参与能提升记忆效果。掌握核心要点，制作思维导图能有效建立知识体系。坚持科学训练语言素养自然会逐步提升。 表“影响” (不确定过去时间) already，yet，ever，just等 （already：多用于肯定句，可放句中/句末； yet：多用于否定句、疑问句，只放句末； just：强调“刚刚完成”，放have/has之后） 表“持续” (从过去到现在的时间段) since＋过去时间点，for＋时间段， recently，in the past 5 years She has already finished her English homework. We haven't found good learning ways yet. I have just learned a new way to study English. I have studied English for six years. They have known each other since they were young. present perfect tense 现在完成时 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 What do you know about this bridge? Hongfenghu Bridge in Guizhou Province 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 In the past no bridges dirt tracks products market industry Now high bridges highways, railways, and wide roads Why are local people richer and happier than before? Greatly improved transportation Shorter travel time Better lives and more developed industry What made the changes possible? government support people’s hard work Great changes happened in Guizhou make life better! 1. 辨析 used to do、used to doing、use sth to do sth、be used to do sth ① used to do sth：过去常常，现在不做了 否定式：didn’t use to do /used not to do（口语更常用 didn’t use to） 疑问式：Did you use to...? 关键：to 是不定式符号，后面必须接动词原形 例：He used to smoke, but he quit last year.（他过去抽烟，去年戒了。） Language points 1. 辨析 used to do、used to doing、use sth to do sth、be used to do sth ② be/get used to doing：习惯于… 核心坑点：to 是介词！ 后面必须接 doing / 名词，不能接动词原形！ 例：I am used to the cold weather.（我习惯了寒冷的天气。） He is used to working at night.（他习惯了熬夜工作。） 注意：get used to 更强调 “逐渐习惯” 的过程， be used to 强调 “已经习惯” 的状态。 Language points 1. 辨析 used to do、used to doing、use sth to do sth、be used to do sth ③ Sb.+ use sth to do sth：主动使用某物做某事 主语是人，动作是主动发出的，强调 “使用者” 和 “用途” 的关系 例：She uses her phone to take photos.（她用手机拍照。） Language points ④ Sth.+ be used to do sth：被动语态，某物被用来做某事 是 use sth to do 的被动形式，主语是物，表某物的固有用途 可以和 be used for doing sth 互换： Knives are used to cut things. = Knives are used for cutting things. 1. 辨析 used to do、used to doing、use sth to do sth、be used to do sth ③ Sb.+ use sth to do sth：主动使用某物做某事 主语是人，动作是主动发出的，强调 “使用者” 和 “用途” 的关系 例：She uses her phone to take photos.（她用手机拍照。） Language points ④ Sth.+ be used to do sth：被动语态，某物被用来做某事 是 use sth to do 的被动形式，主语是物，表某物的固有用途 可以和 be used for doing sth 互换： Knives are used to cut things. = Knives are used for cutting things. 2. track n. 意为“小路；轨道”，是可数名词。 railway tracks 铁轨。 track 作名词，还可意为“足迹；踪迹；车辙”，常用复数形式。 track 还可作动词，意为“追踪；跟踪；留下足迹”。 例：We followed a narrow track through the forest to the waterfall. 我们沿着一条窄小径穿过森林，前往瀑布。 Workers have spent three months laying new railway tracks.工人们花了三个月铺设新铁轨。 We followed the bear’s tracks in the snow.我们跟着熊在雪地上留下的足迹走。 13 wide /waɪd/ adj. 宽的；宽阔的 wide  作副词，仅用于修饰“与具体空间、物理状态相关的动作或状态”，如open wide。 widely  仅用于修饰“与抽象范围、认知、分布相关的动作或状态”，如widely used。 wide adj.广泛的;宽的；宽阔的 反义词为narrow(狭窄的) (1)widely adv. 广泛地 (2)width n. 宽度 (3)widen v. 加宽 3. wide /waɪd/ adj. 宽的；宽阔的 一、句型转换 1.He used to play football after school.（变为一般疑问句） ____ he ____ to play football after school? 2.They used to live in London.（变为否定句） They ____ ____ to live in London. 3.She used to walk to school every morning.（对画线部分提问） What ____ she ____ to ____ every morning? 4.Tom used to get up at 6:00.（对画线部分提问） ____ ____ Tom ____ to get up? 5.My mother used to cook Chinese food.（变为反义疑问句） My mother used to cook Chinese food, ____ ____? 6.Linda was afraid of the dark.（变为反义疑问句） Linda was afraid of the dark, ________ ______? Did use didn’t use did use do When did didn’t she wasn’t she use Great changes 1. (take) place in my hometown over the past ten years. In the past, life here 2. (be) very hard. There 3. (be) few tall buildings, and most people (live) in small,and old houses. Many villagers 5. (have) to walk for hours to get to the nearest town because there were no buses or cars. Now, things are much better. So far, the government 6. (build) four new roads. A new school 7. just 8. (appear) in the center of the town, and buses run every hour. People's lives 9. (improve) a lot, and they are much happier than before. have taken was were lived had has built has appeared have improved 二、正确形式填空 Unit1 The Changing World What changes have taken place around you? Section A(4a-4c) Grammar Focus $