Unit 1 Section A（4a-4c）（同步教学课件） 2026-2027学年九年级英语上册同步教学精品课件（新教材人教版）

该初中英语课件围绕“现在完成时”和“used to用法”核心知识点，通过思维导图复述乡村变化对话导入，搭建从一般过去时到现在完成时的学习支架，衔接时态辨析与实际运用脉络。 其亮点在于融合语言能力与思维品质，通过语法聚焦圈划动词、对话及短文填空分层练习，结合贵州交通变化短文分析时态逻辑，辅以动词过去分词表和易混点突破提升学习能力。学生能扎实掌握时态运用，教师可高效开展语法教学。

Section A 4a-4c Unit 1 The Changing World Learning Aims 语言能力 文化意识 思维品质 学习能力 精准区分三大时态:1一般过去时(过去特定时间发生、现已结束)2usedtodo(过去常态现在不再)3现在完成时(过去发生、持续/影响到现在);掌握三类时态动词变形规则;能根据时间标志词、语境正确变换动词形式完成填空;能读懂变迁类例句、对话、短文并识别对应时态。 掌握“观察例句归纳时态规则一单句操练一对话综合操练一短文综合运用”语法学习流程积累各时态标志性时间词汇，养成先判断时态再变形动词的答题习惯。 通过时间标志、语义逻辑区分时态差异建立“过去单一动作一过去长期习惯一延续到现在的变化”三层时态逻辑;学会根据上下文语境判断时态并。 依托家乡交通、医疗、农业、人口变迁例句巩固语法，在语法学习中感知乡村发展变化，深化家国发展认知。 Retell the conversation according to the mindmap. 1.Young people’s choices Changes in the village 3.Traffic &local businesses 2.The ways of farming 4.Living conditions We have built new houses, a new hospital , and a new library. Many young people have come back to the village to work instead of working in big cities. People have changed the way they farm. They have large, high-tech greenhouses to grow fruit and vegetables . The new highways and railways must have helped a lot! The village has become a tourist attraction. People sell local products online.) A new socialist village. 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. Grammar Focus 此处 表“到现在为止” Read the sentences and circle the verbs. Pay attention to the verb tenses. 4a 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 __________ there? (see) 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 tomorrow. Complete the conversation with the correct forms of the verbs in brackets. Have been don’t know open opened went Did 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_____________ (improve). They are much richer and happier than they once hours. As a result, the lives of local people________ (be). Complete the passage with the correct forms of the verbs in brackets. Why are local people richer and happier than before? was be made have taken has built take were have improved 4c 1) 表示过去发生或已经完成的某一动作对现在造成的影响或结果。 强调动作已经完成，并且与_______________的状态或情况有直接关联。 —Have you read Treasure Island yet? — Yes, I have. 2)表示动作或状态从过去某一时刻开始,一直延续到现在,而且可能还要继续下去。常与____________＋时间段；____________＋时间点等时间状语连用。 I haven’t seen her these days. 现在 for since 现在完成时 一、现在完成时的意义 标志性时间状语（必背）：见到以下词汇/短语，优先使用现在完成时： 1.模糊时间副词：already（已经）、yet（还/已经）、ever（曾经）、never(从不)、just（刚刚）、before、recently/lately。 2.时间段状语：for+时间段（如for 10 years）、since+时间点/过去时句子（如since 2018、since I was 5)、since+时间段+ago 3.强调“到目前为止”: so far、in recent years、over the last 20 years(在过去的20年里) up to now/until now到目前为止these days/in the past few years这些天/在过去几年里 二、现在完成时的标志词 肯定句：主语 + have/ has + 过去分词+其他 否定句:主语+haven’t/hasn’t ( have/has not) +过去分词+其他 一般疑问句:—Have / Has+主语+过去分词+其他? —Yes,主语+have/has./No,主语+haven’t/hasn’t. 特殊疑问句:特殊疑问词(不是主语)+have/has+主语+过去分词+其他 特殊疑问词(是主语)+have/has+过去分词+其他 三、现在完成时的句式 有规则构成和不规则构成两类。 规则构成： (1)一般动词，在词尾直接加“-ed” (2)以不发音的“e、ue”结尾的动词,只在词尾加“d ” (3)以“辅音字母+y”结尾的动词,将“y”变为“i”,再加“-ed” (4)“重读闭音节”结尾,且末尾只有一个辅音字母(w、y、x除外), 辅音字母前只有一个元音字母,先双写该辅音字母,再加“-ed”。 三、动词过去分词的构成 Irregular A—A—A read—read—read put—put—put cut—cut—cut A—B—B think—thought—thought find—found—found bring—brought—brought lose—lost—lost meet—met—met teach—taught—taught shoot—shot—shot leave—left—left tell—told—told buy—bought—bought A—B—C choose—chose—chosen see—saw—seen go—went—gone do—did—done drink—drank—drunk take—took—taken A—B—A run—ran—run come—came—come 不规则构成： 易错点1：标志词混淆 ×错误：I have seen him yesterday.（“yesterday”是具体过去时间，不能用现在完成时） √正确：I saw him yesterday. 易错点2：非延续动词与延续性动词 现在完成时中，非延续性动词（如buy，die，leave，open）不能直接与for/since连用，需转换为延续性状态 易错点3：when与howlong的提问区别 when提问具体时间，用一般过去时： When didyou open the door? ——I opened it just now. howlong提问持续时长，用现在完成时： How long have you kept this book? ——For two weeks. 三、易混易错点突破 【即学即练】 1.— _____ you ____ your math homework yet? — Yes, I ______ it an hour ago. A. Did; finish; finished B. Have; finished; finished C. Have; finished; have finished D. Did; finish; have finished 2.— When _____ you _____ to Hainan? — Last summer. I _____ there twice. A. did; go; have been B. have; gone; went C. have; been; went D. did; go; have gone B A 3.I _____ this book for three days, and I _____ the first five chapters. A. read; finished B. have read; finished C. have read; have finished D. read; have finished 4.She ____ in Shanghai in 2019, but she _____ in Beijing since 2021. lived; has lived B. has lived; lived C. lived; lived D. has lived; has lived 5.The movie ______ 10 minutes ago, and it ______ for 10 minutes. A. started; has started B. has started; has been on C. started; has been on D. has started; started C A C 肯定句：We used to have to travel far to see a doctor. 变否定句： 变一般疑问句： We didn`t use to have to travel far to see a doctor. We usedn`t to have to travel far to see a doctor. Did you use to have to travel far to see a doctor? Used you to have to travel far to see a doctor? 主语+didn’t use/usedn`t to do sth. Did+主语+use/ used+主语+to do sth. used to 的用法 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...? / Used you to...? 区别：和 be used to doing 完全无关，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。） 辨析 used to do、used to doing、use sth to do sth、be used to do sth 1.used to do “过去常常”（+动词原形）现在不做了 注意：用于表示过去常常做，现在不一定这样了 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。 2.be/get used to doing “习惯于做某事” 注意：to 是介词！ 后面必须接 doing / 名词，不能接动词原形！ She uses her phone to take photos.（她用手机拍照。） 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 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. 注意别和 be used to doing 搞混： The pen is used to write.笔被用来写字。→ 被动语态，表用途。 I am used to writing with this pen.我习惯用这支笔写字。→ 主动，表习惯。 4.be used to do “被用来做某事” 注意：be used此时是被动语态 【即学即练】 1. I used to ______ to school late,but now I don’t. A. go B. going C. be D. goes 2. He ______ practicing speaking English in the morning. A. used to B. is used to C. uses to D. is using to 3. Lucy used to go to bed late, _____ she? A. didn’t B. doesn’t C. hadn’t D. isn’t A A B 【即学即练】 4. —_______ new buildings ! I can’t believe it. It ______ a poor village. —Yes. Everything has changed here these years. A. So many; used to be B. So much; is used to being C. Too many; used to D. Too much; used to 5. Her son ______ Coke, but now he ______ milk. A. is used to drink; is drinking B. used to drinking; drinks C. is used to drinking; used to drink D. used to drink; is used to drinking A D Language points Point 1 There are sections with books about science and Chinese culture, as well as a huge section with children’s books. 有关于科学和中国文化的书籍区域，还有一个巨大的儿童书籍区域。 as well as 除……之外，也，还 as well as as well 含义 除……之外，也，还 也，还 位置 位于所连接的两个成分之间，不能位于句尾 通常位于句尾 用法 连接对等成分，在语义上通常强调其前面的信息（翻译时通常先译后面的，再译前面的） 无侧重，用于补充信息 It’s a good time for you to be with each other as well as having the enjoyable food. 这是你们品尝美味佳肴和相聚的好时光。 Reading more books can improve our English as well. 多读书也能提升我们的英语水平。 as well as连接两个并列成分作主语时，谓语动词应与其前面的主语保持人称和数的一致。 Tony as well as his friends is from England. 托尼还有他的朋友们都来自英格兰。 用法拓展 易混辨析：as well as /too/also /either（四者都含 “也”） as well as：连接并列成分（词、短语、句子），侧重前者；可用于肯定句。放在被连接的两部分中间。 also：正式用语，只用于肯定句。放在实义动词前，be 动词 / 助动词 / 情态动词后。 too：口语常用，多用于肯定句。一般放在句末，前面常加逗号。 either：仅用于否定句，表 “也（不）”。放在句末。 拓展辨析：as well as /not only...but also... as well as：就前原则，强调前面内容 not only...but also...：就近原则，强调后面内容 Point 2 ...and most roads were just dirt tracks. 而且大多数道路都只是泥土路。 dirt /dɜːt/ n. 泥土；尘土（不可数） Pack the dirt firmly round the plants. 将植物周围的土培实。 Little Tom is playing in the garden and his face and hands are covered with dirt.小汤姆正在花园里玩，他的脸和手上全是泥。 dirt n. 泥土；尘土 dirty adj. 脏的 If you step on the dirt in the yard, your shoes will get dirty quickly. 如果你踩到院子里的泥土，你的鞋子会很快变脏。 Point 3 This made it difficult for locals to bring products to the market or to develop industry. 这使得当地人很难将产品运到市场上或发展工业。 make it + adj. + for sb. + to do sth. 使做某事对某人来说是…… it 是形式宾语，无实际词义；真正的宾语是后面的 to do sth.；形容词用来描述“做这件事”的特征、感受；介词 for 引出动作的逻辑主语（某人）。 常用搭配形容词：easy、difficult/hard、convenient、possible、impossible、comfortable、interesting等。 有此用法的常见动词还有find、 think、consider等。 易混点与注意事项：句型中必须用 it，不能换成 this /that。 ❌ This makes hard for me to learn. ✅ This makes it hard for me to learn. 区分：for sb. 和 of sb. make it + adj. + for sb. to do：形容词描述事情本身（难易、便利、危险等）； It's + adj. + of sb. to do：形容词描述人的品质（善良、聪明、粗心等）。 Some useful apps made it convenient for me to live here. 一些有用的应用程序让我在这里的生活很方便。 Teamwork makes it possible for us to finish the task quickly. 团队合作使我们快速完成任务成为可能。 We all consider it necessary for us to take notes in class. 我们都认为上课记笔记对我们来说很有必要。 Point 4 The government has built thousands of kilometres of highways, railways, and wide roads. 政府已经修建了数千公里的高速公路、铁路和宽阔的道路。 （表示道路、河流等）宽的 （表示距离）宽度为……的 wide （表示眼睛）睁大的 Her eyes were wide with wonder. 她惊讶地睁大了眼睛。 The small path starts narrow and becomes wide from here. 这条小路一开始很窄，到这个地方就变宽了。 The river is more than three metres wide. 这条河宽3米多。 【拓展】widely (adv.) 广泛地；普遍地 例句：English is widely used all over the world. 英语在全世界被广泛使用。 width (n.) 宽度；广度 例句：We don't know the width of the river. 我们不知道这条河的宽度。 易混辨析：wide /widely 二者都可作副词，用法不同： wide（adv.）侧重具体空间上 “张得大、距离远”，多指实物 widely（adv.）侧重抽象意义 “广泛地、普遍地”，多用于搭配、被动语态 Exercises 一、单项选择 A A C 1. -----_________ you _________ the new museum yet? -----Yes, I _________ there last Sunday. A. Have; visited; went B. Did; visit; went C. Have; visited; have gone 2. My grandma ____________ in the countryside when she was young, but now she lives in the city. A. used to live B. was used to live C. is used to living 3. Our village __________ a new primary school already. A. builds B. built C. has built 4. -----Where is Tom? -----He _________ to the library, and he will come back soon. A. goes B. has gone C. has been 5. They __________ each other for over ten years since middle school. A. know B. knew C. have known 6.-----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 B C B (　　)7.—Look! Your teacher Miss White is over there. —No，it can’t be her.She ________ to Beijing. A.went B.has gone C.will go D.has been B (　　)9. —The concert tickets sold out in minutes! —Wait，I ________ a message—maybe there’s a second show! A.receive B.received C.am receiving D.will receive B (　　)8. A young man ______ from the wall and _____ his shoulders. A.fell；hurt B.falls；hurt C.fell；hurts D.felt；hurt A (　　)10.—Linda，what about taking pictures with me in your new horse-face shirt? —I’d love to，but I ________ my housework yet. A.will finish B.didn’t finish C.haven’t finished D.don’t finish C (　　)11.—How long is it since he ________ his hometown? —He ________ for nearly 10 years. A.left；left B.has left；has left C.has left；has been away D.left；has been away （ ）12.— Did you enjoy the party last night? — Yes, I ______ a great time with my classmates. A. have B. had C. have had D. used to have D B 13.— ______ you ever ______ to the Great Wall? — Yes, I ______ there with my family in 2023. Have; gone; went B. Have; been; went C. Did; go; have been D. Do; go; went 14.The students ______ a sports meeting last week, and they ______ another one next month. A. have; will have B. had; have C. had; will have D. have had; had 15.— Why is Tom so good at English? — He ______ read English storybooks every day when he was in primary school. A. uses to B. used to C. is used to D. was used to B B C 二、用括号内所给词的适当形式填空。 1.Lucy used ________ (be) nervous about exams all the time. 2. Last week，we ______ (watch) a fashion show in the school hall. 3.I’m so happy that I ____________ (finish) nearly half of my homework now. to be watched have finished 4.The thief _________ (steal) many treasures since he dropped out of school. 5.—_______ your sister ______ (come) back from Yunnan? —Yes.She ________ (stay) there for two months to help train teachers in the countryside. has stolen Has come stayed 6. I ___________________ (not finish) my homework yet. 7. He ____________ (open) his small shop three years ago. 8. There used to ____________ (be) a small river in front of our house. 9. Great changes ____________ (take) place in our hometown in the past five years. 10. She ____________ (visit) many cities since she left school. 11. My father ____________ (listen) to audio books every evening these days. haven`t finished opened be have taken has visited listens 一、用括号内动词的正确形式填空 1.My father _______ (work) in a factory 5 years ago, but now he has ________(become) a driver. 2.We ____________ (not see) each other since last summer vacation. 3.I _________ (use to) hate running, but now I do it every morning to keep healthy. 4.— ______ you _______ (visit) the new museum yet? — Yes, I _____ (go) there last Sunday. 5.The city ____________ (change) a lot in the past three years. There _______ (be) no tall buildings here before. Exercises worked become haven't seen used to Have visited went has changed were 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? Did use didn’t use did use do 三、句型转换 37 本课句型 Summary 我都 学会了! Key words Expression digital ，audio ，wide ，track used to do ，take place ，come back，have to，dirt tracks ， as a result ，in the past ，as well as ，thousands of，audio books 1.He became a good friend of your grandfather about 20 years ago. 2.They haven't seen each other for ages! 3.Our village has just built a new hospital. 4.Many people used to work in big cities. Now, more of them have come back to live and work here. Sentences Basic (必做) 复习并牢记本堂课的重点单词、短语和句型、语法。 Improving(选做) 2.仿照4b编写小对话（5组问答，主题：去过的新公园）。 Extend (选做) 3.记者，采访家里长辈（爷爷奶奶/爸妈），围绕3个问题采访，整理50词小采访稿，强制用上：used to / have done / did(过去式)。 Homework Thank you ! $