Unit 1 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一般过去时、现在完成时与used to的区别及运用，通过歌曲听力导入引出目标时态，结合句子分析、表格对比、图解助记构建知识脉络，以即时训练和语篇填空为学习支架。 其亮点在于融合语言能力与思维品质，通过歌曲语境、对话补全（4b）和语篇填空（4c）提升语言运用能力，借助时态对比表格、错误辨析（非延续性动词转换）培养分析比较思维。采用“导入-呈现-辨析-应用”教学法，总结清晰，学生能夯实语法基础，教师可高效开展分层教学。

Section A What changes have taken place around you?（Grammar Focus） Unit 1 The changing World 九年级上 目 录 Warming Up 2 Grammar 3 Exercises 4 Learning Objectives 1 Summary 5 At the end of the class, we are able to: 1. understand the difference between the simple past tense and the present perfect tense. 2. use both tenses to show the contrast between past and present. Learning Objectives Warming Up 点击播放视频 Listen and answer. What do you hear from the songs? 1. When I ___ young, I _______ to the radio. When they _______ , I ________ along. 2. We ___________ each other since we were nine or ten. Together we ___________ hills and trees. was listened played sang have known have climbed Simple Past Tense Present Perfect Tense What’s the difference between the two 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. Grammar 4a Read the sentences and circle the verbs. Pay attention to the verb tenses. Presentation Simple Past Tense Present Perfect Tense used to + v. 原形（过去常常） Present Perfect Tense used to + v. 原形（过去常常） Present Perfect Tense 一般过去时：主语+动词过去式 现在完成时：主语+have/has +动词过去分词 used to 的用法 used to 的基本句式 used to 过去常常，可用于各种人称，表示过去存在的，但现在可能已经停止的情况或习惯。 used to do sth. 表示“过去常常做某事”。 e.g. Mr. Smith used to go fishing by the lake. used to 的句式变化 (1) used to 的否定式为didn’t use to 。 Her daughter didn’t use to eat fruit. (2) used to 的一般疑问句在句首加did，并把used 变成use。 —Did Lucy use to have straight hair? —Yes, she did./ No, she didn’t. (3) used to 的反意疑问句 used to 的反意疑问句形式也有两种：一是用didn’t；二是用usedn’t。 She used to be shy, didn’t she? (4) there be 结构与used to的结合句型： There used to be... 过去有…… There used to be a bank across from the street. 这条河里过去有很多鱼，可现在它被污染得很严重。 ______________ many fish in the river. But now it is seriously polluted. There used to be 1. His father used to love mountain climbing. (改为一般疑问句并进行否定回答) —________ his father _______ to love mountain climbing? —________, he ________. Did use No didn’t Instant Training 2. Your father used to eat meat, _____? A. did you B. didn’t you C. usedn’t he D. did he C used to do sth. get/be used to doing sth. be used to do sth. be used for doing sth. used to 的相似结构辨析 过去常常做某事 习惯于做某事 被用来做某事 被用来做某事 1. 我妈妈过去常用手洗衣服。 My mother _____________ clothes by hand. 2. 我妈妈习惯于用洗衣机洗衣服。 My mother _______________________ clothes in the washing machine. 3. 洗衣机被用来洗衣服。 The washing machine _______________________ clothes. =The washing machine __________________________ clothes. used to wash is/gets used to washing is used to wash is used for washing Instant Training 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. Look at the sentences and find the time words or time clues. used to... 表“过去常常，现在不再……”无明确时间 一般过去时 现在完成时 What time words do we often use with the simple past and the present perfect? (1)ago及ago词组 (2)yesterday及yesterday词组 (3)last及last词组 (4)just now, in the past, in 1920等 (5)once upon a time (1)already, ever, never, just, yet, still (2)recently, lately, so far, up to/till now (3)in the past/last three years/..., since 1998, since+时间点 (4)for three years, for+一段时间 Sentence Yes / No / Not now 1. He became a friend 20 years ago. 2. They haven’t seen each other for ages. 3. We used to travel far. 4. The village has just built a hospital. 5. People used to work in big cities. 6. They have come back now. Does the action still happen now, or is it finished? No（已结束） Not now（到现在还没见） Not now（现在不这样了） Yes（医院现在存在） Not now（现在不这样了） Yes（他们现在在这里） 如何表达“过去”？ 一般过去时 vs 现在完成时 vs used to 注意: 现在完成时强调过去动作对现在造成的影响，而一般过去时单纯描述过去发生的动作。 时态 / 结构 特点 与现在的关系 例句 一般过去时 有明确过去时间 ❌ 动作已结束，与现在无关 He became a friend 20 years ago. 现在完成时 时间不明确, 常与 for, since, just, already 等连用 ✅ 对现在有影响 / 持续到现在 They haven’t seen each other for ages. used to + do 无明确时间，表过去的习惯 ⏪ 过去常常，现在不再❌ We used to travel far. 图解助记 动作在过去已结束，与现在无关 动作从过去持续到现在，对现在有影响 选择填空 1. We__________ this movie last week. A. saw   B. have seen   C. see 2. Mary __________ sushi before. A. never ate   B. has never eaten   C. never eats 3. The doctor __________ here since 2015. A. lived   B. has lived   C. live 4. Tom __________ to Beijing yesterday. A. has gone   B. went   C. goes 5. I __________ my homework. A. already finished   B. have already finished  C. finish Instant Training A B B B B × I visited Beijing last year. √ I have visited Beijing. √ I visited him three times. 2. used to结构不能与具体时间或次数连用。 1. 现在完成时不能与具体时间连用 ❌ 错误 ✅ 正确 I used to go to Beijing last year. I went to Beijing last year. I used to visit him three times. I visited him three times. 3. 在现在完成时中，for + 时间段 和 since + 时间点 必须与延续性动词 连用。 ❌ I have bought this book for 2 days. I have had this book for two days. ✅ 非延续性动词需转换为 “be + 形容词/副词/名词” 或 have/has had 等形式。 非延续性动词 延续性动词 buy borrow open close begin/ start come to/go to/get to… die finish/ end join leave have keep be open (adj.) be closed (adj.) be on be in/at … be dead be over be in …/be a member of … be away (from …) 找出下列句子的错误并改正。 1. I have seen the movie yesterday. → __________________________________________ 2. Linda has gone to Beijing in 2020. → __________________________________________ 3. Mike lived here since 2010. → __________________________________________ 4. The boy didn’t finished his homework yet. → __________________________________________ 5. We have visited the museum three times last year. → __________________________________________ Instant Training I saw the movie yesterday. Linda went to Beijing in 2020. Mike has lived here since 2010. The boy hasn’t finished his homework yet. We visited the museum three times last year. 4b Complete the conversation with the correct forms of the verbs in brackets. 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. Have been didn’t know open opened went Practice 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 will _________ (bring) my little brother there tomorrow. Did like have visited did see read listened bring adj. /ˈdɪdʒɪtl/ adj. & n. /ˈɔːdiəʊ/ 4c Complete the passage with the correct forms of the verbs in brackets. Why are local people richer and happier than before? 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. was be made n. /dɜːt/ n. /træk/ Production 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). have taken has built take have improved were adj. /waɪd/ 1. Many people use __________ (数字的) payments when they shop online. 2. My little sister enjoys listening to __________ (有声的) stories before she goes to bed. 一、根据括号里的提示完成句子。 Exercises digital audio 3. After the heavy rain, the farmer’s truck got stuck on the __________ (泥土) road. 4. The hikers followed a mountain __________ (小径) to reach the hidden lake. 5. The new road is very __________ (宽阔的) and cars can go fast. track wide dirt 二、根据短文内容及括号内所给提示补全短文。 My Grandfather’s Life My grandfather (1) __________ (work) in a small factory when he was young. He (2) __________ (not have) a car, so he walked to work every day. He (3) ______________ (smoke) a lot, but now he has given it up. He (4) __________ (live) in the countryside for 30 years, and he still lives there now. I (5) ___________ (not see) him for two months. I miss him very much. worked didn’t have used to smoke has lived havn’t seen 1. Grammar： 学习一般过去时与现在完成时的区别。 2. Words and expressions: digital, audio, dirt, track, wide Summary Lavf58.46.101 $