Unit 1 The Changing World Section A Grammar Focus 课件 2026-2027学年人教版英语九年级上册

该初中英语课件聚焦一般过去时与现在完成时的用法及区别，通过“读句子圈动词”活动导入，结合中文翻译及时态说明，以“过去与现在对比”为支架，帮助学生建立时态与时间概念的关联，衔接已学一般过去时与新授现在完成时。 其亮点在于融合语言能力与思维品质培养，如“村庄变化”思维导图助力复述训练，对话填空练习结合生活场景强化时态运用，歌曲记忆不规则过去分词提升学习趣味性。通过对比表格、实例辨析等方法，学生能准确区分时态并在语境中表达，教师可借助结构化资料高效开展语法教学。

人教版九年级英语上册 Unit 1 The Changing World Section A Grammar Focus 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。 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。 Read the sentences and circle the verbs. Pay attention to the verb 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. 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 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. 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。 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 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 句式结构不同(行为动词) 句式 一般过去时 现在完成时 肯定句 主语 + 动词过去式 + 其他. e.g. He went to the library yesterday. 主语 + have/has + 过去分词 + 其他. e.g. He has gone to the library. 否定句 主语 + did not (didn't) + 动词原形 + 其他. e.g. He didn't go to the library yesterday. 主语 + have/has + not + 过去分词 + 其他. e.g. He hasn't gone to the library yet. 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 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 句式结构不同(行为动词) 句式 一般过去时 现在完成时 一般疑问句 及其回答 —Did + 主语 + 动词原形 + 其他? —Yes, 主语 + did. / No, 主语 + didn't. e.g. —Did he go to the library yesterday? —Yes, he did. / No, he didn't. —Have/Has + 主语 + 过去分词 + 其他? —Yes, 主语 + have/has. / No, 主语 + haven't/hasn't. e.g. —Has he gone to the library yet? —Yes, he has. / No, he hasn't. 特殊疑问句 特殊疑问词 + did + 主语 + 动词原形 + 其他? e.g. When did he go to the library? 特殊疑问词 + have/has + 主语 + 过去分词 + 其他? e.g. Where has he gone? 一首歌曲帮你快速记忆 不规则变化的过去分词 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 现在完成时的句式 句式结构不同(be动词) 句式 一般过去时 现在完成时 肯定句 主语 + was/were + 表语. e.g. She was happy yesterday. 主语 + have/has + been + 表语. e.g. She has been happy since then. 否定句 主语 + wasn't/weren't + 表语. e.g. They weren't at home last night. 主语 + haven't/hasn't + been + 表语. e.g. They haven't been here for a long time. Key phrases 1. 也；还 ____________________ 2. 跨越山河; 跋山涉水 ____________________________ 3. 发展工业 _______________________ 4. 结果 ________________ 5. 在过去 ________________ 6. 小土路 ________________ as well as cross mountains and rivers develop industry as a result in the past dirt tracks 句式结构不同(be动词) 句式 一般过去时 现在完成时 一般疑问句 及其回答 —Was/Were + 主语 + 表语? —Yes, 主语 + was/were. / No, 主语 + wasn't/weren't. e.g. Were you at school yesterday? —Yes, I was. / No, I wasn't. —Have/Has + 主语 + been + 表语? —Yes, 主语 + have/has. / No, 主语 + haven't/hasn't. e.g. Has she been a teacher for 10 years? —Yes, she has. / No, she hasn't. 特殊疑问句 特殊疑问词 + was/were + 主语 + 表语? e.g. Why were you late for school? 特殊疑问词 + have/has + 主语 + been + 表语? e.g. How long has she been a teacher? 表示过去某个时间或某段时间发生的动作或存在的状态,也可以表示过去经常或反复发生的动作。 谓语动词部分要用动词的过去式。 一般过去时 意义: 谓语动词形式 yesterday, the day before yesterday, …ago, …later, just now, at that moment, last…, in 2001, in the past, every day last year等。 标志词 20 侧重点不同 一般过去时：表示过去某个时间发生的事情或存在的状态， 说话的侧重点在陈述过去发生的事情或存在的状态。 e.g. I went to the library yesterday. 动作: 去图书馆 时间: 昨天（明确过去时间） 结果: 现在是否在图书馆？不知道，不关心。 now past future 侧重点不同 现在完成时：表示到说话时为止已经发生(不一定结束)或完成的 动作或状态，强调造成的结果或对现在产生的影响。 e.g. He has lived here for 10 years. 动作开始: 10年前搬到这里 持续状态: 一直住在这里（从过去到现在） 现在情况: 现在仍住在这里（●） 未来可能: 还可能继续住下去（►） now past future 过去某一特定时间，只能用一般过去时： 当句中有表示过去某一特定时间的状语时不用现在完成时,而用一般过去时。 Mike has played tennis yesterday (×) Mike played tennis yesterday . (√) 速记口诀: 昨天、前天、多久前，刚才、那时、去年间； 过去年份、过去里，往年每天都一般。 现在完成时表示过去发生的某一动作对现在造成的影响或结果， 强调现在的情况（如现在的结果，影响,一直延续到现在等） 。 Past Present Future 一般过去时单纯叙述过去的动作或事情，强调动作，与现在无关 I saw Nezha 2 last night. （强调看的动作发生过了。） Past Present Future I have seen this film.(强调对现在的影响,我知道电影的剧情。) 现在完成时 vs 一般过去时 We learn: 1. New words & phrases: wide, dirt, track, digital books, audio books. 2. Grammar: The difference between Present Perfect Tense and Simple Past Tense; time markers yet, just, ever, for, since, ago, used to. 3. Sentence patterns: Have you ever done…?; I have just done…; sb. used to do sth.; How long have you…? We can: 1. Tell apart Present Perfect and Simple Past Tense in sentences and passages. 2. Fill blanks in conversations and articles with correct verb forms. Summary Exercises 1. My grandfather __________ (listen) to some audio books in the new library last week because he enjoys learning new things. 2. It is very convenient for us __________ (read) digital books on the computer instead of carrying heavy paper ones. 3. The government __________ (build) many wide roads and high bridges in Guizhou so far. 4. The dirt on these old __________ (track) made it hard for villagers to walk after the rain. 5. Please remember _____________ (not touch) the old paintings in the museum. They are very valuable. listened I. 用括号中所给单词的适当形式填空。 to read has built tracks not to touch Exercises 1. 这个新的图书馆不仅有很多儿童书籍，也有一个很大的数字阅读区。 The new library has a big digital reading area ______ ______ ______ a huge section with children’s books. 2. 我们过去常常要翻山越岭去看病，但现在我们村里有了一家新医院。 We used to ______ __________ and _________ to see a doctor, but now there is a new hospital in our village. 3. 政府修建了数千公里的高速公路，结果，当地人的生活改善了很多。 The government has built thousands of kilometres of highways. ______ ______ ______, the lives of local people have improved a lot. 4. 在过去，大多数道路只是泥土路，这使得当地人很难发展工业。 ______ ______ ______, most roads were just dirt tracks, and this made it difficult for locals to _________ _________. 5. 我爷爷的眼睛不好，所以他更喜欢听有声书而不是看纸质书。 My grandpa can't see well, so he prefers to listen to ______ ______ rather than read paper books. as well as II. 根据汉语提示完成句子（每空一词）。 cross mountains rivers As a result In the past develop industry audio books Homework 1. 基础层：背诵 5 个生词 + 两种时态核心时间标志词。 2. 提高层：用 80 词写短文《Changes in My Hometown》， 至少使用 3 个本课生词，2 句一般过去时、2 句现在完成时。 3. 拓展层：自主出 5 道时态辨析填空题，并附上答案。 Thank you! 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