Unit1 Grammar Focus 课件 2026-2027学年人教版英语九年级上册

该初中英语课件围绕九年级Unit 1“The Changing World”，聚焦一般过去时、used to与现在完成时的区分及应用。课堂导入通过Warming up环节对比过去“步行几小时看医生”与现在“村庄附近建了新医院”，搭建“过去vs现在”的学习支架，帮助学生建立时态与语境的关联。 其亮点在于以语法对比表格清晰呈现两种时态的意义及时间状语，结合语境应用练习（如对话填空、短文补全）提升语言能力，通过“过去vs现在”的例句分析培养思维品质。资料包含词汇解析、反思环节及分层作业，助力学生巩固知识，教师可高效开展语法教学，提升课堂效果。

Unit 1 The Changing World UNIT 1 Compare simple past tense and present perfect tense digital adj. 电子的 audio adj.音频的 n. 音频 digital books 电子书 audio books 有声书 dirt n. 泥土；尘土 track n. 小路；轨道 wide adj. 宽的；宽阔的 Most roads were just dirt tracks. 大多数道路只是泥土路。 The road is wide enough for two cars to pass. 这条路足够宽，能并排过两辆车。 能够区分并正确使用一般过去时、used to 和现在完成时； 能在对话和短文中根据时间状语和语境选择正确的动词形式； 理解时态变化如何体现“过去 vs 现在”的对比。 Look at the following pictures. How did people see a doctor in the past? What about now? In the past, people used to walk for hours to see a doctor. Now, they have built a new hospital near the village. 7 1. 一般过去时的意义 （1）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，常和表示过去的时间状语连用，如 yesterday、last night、in 1990、two days ago 等。 e.g. He got up early yesterday. I visited my grandparents last week. （2）也可表示过去经常或反复发生的动作，常和 often、always 等表示频度的状语连用。 e.g. He always went to work by bus last year. 一般过去时 含be动词的一般过去时 含实义动词的一般过去时 肯定句 主语 + was / were + 其他. 主语 + 动词过去式 + 其他. 否定句 主语 + was / were + not + 其他. 主语 + didn't + 动词原形 + 其他. 一般疑问句 Was / Were + 主语 + 其他? Did + 主语 + 动词原形 +其他? 肯定回答 Yes, 主语 + was / were. Yes, 主语 + did. 否定回答 No, 主语 + wasn't / weren't. No, 主语 + didn't. 特殊疑问句 疑问词 + was / were + 主语 + 其他? 疑问词(主语who除外) + did + 主语 + 动词原形 + 其他? 2. 一般过去时的构成 9 现在完成时的意义 现在完成时可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。 e.g. I have done the dishes.    (强调餐具已经洗干净了) Sam has found a good way to solve the problem. (强调已经找到了解决问题的方法) 现在完成时 2. 现在完成时的构成 肯定句：主语 + have / has +动词过去分词 + 其他 否定句：主语 + have / has + not + 动词过去分词 + 其他 一般疑问句及回答：Have/Has + 主语 + 动词过去分词 + 其他    肯定回答：Yes，主语 + have / has 否定回答：No，主语 + haven’t / hasn’t 特殊疑问句：特殊疑问词 + have / has + 主语 + 动词过去分词+ 其他？ 动词过去分词的构成有规则构成和不规则构成两类。 规则构成：动词过去分词的构成与其过去式的构成相同，如：cheer → cheered，invite → invited, step → stepped，carry → carried等。 不规则构成需牢记，如：do → done，choose → chosen，fly → flown 等。 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. Read the sentences and circle the verbs. Pay attention to the verb tenses. simple past tense present perfect tense Why do the sentences in the first column use the simple past tense or “used to”? Why do the sentences in the second column use the present perfect tense? He became a good friend of your grandfather about 20 years ago. 大约20年前，他成了你祖父的好朋友。 They haven't seen each other for ages! 他们都多年没有见过彼此了。 过去某个时间点发生，用一般过去时 表示情况从过去持续到现在，用现在完成时 We used to have to travel far to see a doctor. 我们过去不得不去很远的地方看医生。 Our village has just built a new hospital. 我们村刚建了一所新医院。 used to do 表示过去的情况，用一般过去时；但带有“对比现在”的含义。 表示动作发生在离现在很近的过去，强调“医院刚修完，对现在有影响”，用现在完成时。 Many people used to work in big cities. 许多人过去在大城市工作。 Now, more of them have come back to live and work here. 现在他们中有更多人回来这里生活和工作了。 前一句和后一句形成对比，现在完成时在这里说明从过去到现在的这种变化结果。 一般过去时和现在完成时的区别 时态 意义 时间状语 一般过去时 只表示过去发生的动作或存在的状态，和现在不发生联系。 yesterday, at that time, just now, last ..., ... ago, in+过去的年份, on+过去的日期 现在完成时 过去发生的动作或存在的状态对现在造成的影响或结果，强调现在的情况。 already, never, ever, just, yet, so far, since ..., for, in the past / last ... , recently, lately e.g. I have watched the movie before. 我以前看过这部电影。 （我了解这部电影的内容） I watched the movie last week. 我上星期看了这部电影。 （只说明上星期看了这部电影，不涉及现在的情况。） 在肯定句中，非延续性动词，如come，go，arrive，die，buy，borrow，leave，join，marry，begin，finish，end等不能与for，since连用。需改为其他表示相同意思的延续性动词。 非延续性动词VS延续性动词 e.g. He has left for two hours. ❌（leave 是瞬间动作，不能持续）   He has been away for two hours. ✅ 但在否定结构中，可用非延续性动词的现在完成时表示持续的动作或状态。 e.g. I haven’t bought any food since last week. The fridge is empty now. for + 一段时间：表示动作或状态持续了多长时间 since + 一个时间点/过去时的句子：表示动作或状态从过去某个具体时间开始 since和for的用法 e.g. She has lived here for five years. 她在这里住了五年了。 He has taught English since 2019. 他从2019年起就教英语了。 I have known her since we were children. 自从我们还是孩子时我就认识她了。 1) His grandfather ___________ (die) for five years. 2) How long __________ you __________ (buy) this computer? 3) She ___________ (leave) since two hours ago. 4) I ___________ (keep) this book since last Monday.  【语境应用】用所给动词的正确时态填空。 has been dead have had has been away have kept 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? Complete the conversation with the correct forms of the verbs in brackets. Have been didn’t know open  opened went Did like have visited did  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 there tomorrow.  read listened  will bring  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 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 24 Now great changes __________ (take) place. The government _________ (build) thousands of kilometres of highways, railways, and wide roads. It has also built many bridges and tunnels. 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 用所给词的正确形式填空。 My grandma _________ (live) in this village since she was a child. 2. They _________ (not have) a hospital in the past. They _________ (walk) 10 km to see a doctor. 3. _________ you ever _________ (try) e-payment in our town? 4. The roads _________ (be) very narrow before, but now they ___________ (become) wide highways. has lived didn’t have walked Have tried were have become I can 区分并正确使用一般过去时、used to 和现在完成时。 在对话和短文中根据时间状语和语境选择正确的动词形式。 理解时态变化如何体现“过去 vs 现在”的对比。 27 Write 5 sentences about your hometown: 2 with used to, 2 with present perfect tense, 1 with simple past tense. Preview Section B. Read the new words. Read the passage. $