Unit 2 第3课时 Understanding idea（Grammar） 课件2025-2026学年外研版（2024）八年级英语上册

该初中英语课件围绕“现在完成时”语法核心知识点展开，通过情境导入、例句分析、对比归纳和任务驱动等环节，构建从感知到理解再到运用的学习支架。从“树木开花”“孩子害怕”等生动句子切入，逐步引导学生发现“for/since”的区别，再结合生活实例如“Uncle Jimmy送冰激凌”和“分享经历”，实现语言输入与输出的自然衔接。 其亮点在于融合语言能力、思维品质与学习能力三大核心素养，以真实语境激活学生表达欲望，例如在“Work in pairs”活动中鼓励学生用目标句型描述个人分享经历，提升语言实践力。同时借助非延续性动词转化技巧（如buy→have）培养逻辑思维，通过表格对比现在完成时与一般过去时强化认知结构。这种由浅入深、由输入到输出的设计既助力学生掌握语法本质，又促进跨文化共情意识的发展，也为教师提供清晰的教学路径与可复制的课堂活动模板。

外研版 八年级上册 Unit 2 Getting along Understanding idea (Grammar) Revision 1. 树木们开心得浑身都开满了花。 And the trees are so glad that they have covered themselves with flowers. 2. 孩子们看起来很害怕。 The children look afraid. grade 年级 article (报刊的) 文章 priceless 极其贵重的；无价的 offer 提供，给予 plan 计划 quite 很；较为 stressed 焦虑的，紧张的，无法放松的 recently 最近，近来， 不久前 online 从网上，在网上 allow 使有可能；允许，容许，准许 (a) The Giant has been away for a long time. (b) Since then, he hasn't seen a child there. Read the sentences from the reading passage and summarise the grammar rules. 语法总结： For + 时间段: 强调动作持续了多久 Since + 时间点: 强调动作从何时开始 Now find more sentences with these structures in the reading passage. (1) “I can not understand why spring has not come since last year, ” says the Giant. (2) I have’t heard that beautiful birdsong for a while. Watch the video 1. We have been friends Grade 3. 2. They have been together three years. 3. last year, we've shared a lot of happy moments. Complete the sentences with for or since. since for Since for 接时间段，计量很直观， since连时间点，强调起始点， 动作持续要用for，开始至今选since. 现在完成时Ⅱ 用法： 现在完成时表示从过去某时开始持续到现在的动作或状态，可以和表示一段时间的状语连用。 表示一段时间的状语，如“for+时间段”“since+时间点”“over the past/last+时间段”等。 注意：在对现在完成时的时间状语从句提问式，我们常用how long。 ▶ It has been ten years since we met last time. 自从我们上次见面以来已经 10年了。 ▶ Mr Green has lived in Shanghai since 1999. 格林先生自从 1999年以来就住在上海。 ▶ I have taught English since twelve years ago. =I have taught English for twelve years. 我自从 12年前就教英语。 延续性动词 表示的是能够延续的动作，这种动作可以延续下去或产生持久的影响如:work, keep,walk, wait, live ,stay,know等 可以与表示时间段的状语连用，如: for+时间段, since+时间点/从句等 非延续性动词 表示的动作不能延续，即动作发生后立即结束或产生某种结果。如:open，borrow, come , g0 ,finish, close , buy 等 非延续性动词在肯定句中与表示时间点的状语连用， 如: three months ago , at 4 o'clock 延续性动词与非延续性动词 延续性动词与非延续性动词 ①非延续性动词转化为延续性动词， 如: buy →have , borrow→keep。 My father bought the car three years ago. →My father has had the car for three years. 我父亲买这辆小汽车3年了。 延续性动词与非延续性动词 ②非延续性动词转化为“be+形容词/副词”,如: leave →be away (from), open → be open, close →be closed , die → be dead begin/start →be on, finish/end →be over marry→be married He left his hometown last year. → He has been away from his hometown since last year. 他去年离开了家乡。 The cat died a week ago. → The cat has been dead for a week. 这只猫死了一个星期了。 ③ 非延续性动词转化为“be+介词(短语)”或“be+名词”,如: come/go/join/arrive →be in/at join the army→be a soldier Jim came to China ten years ago. →Jim has been in China for ten years. 吉姆来中国 10年了。 现在完成时与一般过去时的区别 对比维度 现在完成时 一般过去时 时间关联 强调 “过去→现在的联系” （影响、持续） 强调 “过去的事实”（仅描述过去，与现在无关） 标志词 for/since, ever, never, just, already, yet yesterday, last week, in 2000 等 例句对比 I have lived here for 5 years.（现在还住这里） I lived here 5 years ago.（现在不住了） Complete the news article with for, since and the correct form of the words in brackets. Most people hope to receive birthday gifts,But jimmy Teng, or “Uncle Jimmy", does things differently. The 74-year-old has sold ice creams 1._____ the past 17 years in Singapore. for Every year, on 22 March- his birthday- he 2. (offer) free ice creams. He has done this 3. his 70th birthday. This year, Uncle Jimmy plans to give away 800 ice creams."People 4.__________(be) quite stressed recently and l want to help," he said." Sharinghas made me feel happy 5. the past four years. offers since have been for He 6. (enjoy) talking with his customers. Many of them havebecome his friends 7. they first met. Some students helped himset up social media pages. He has made many friends online 8. then. since enjoys since Work in pairs. Discuss your experience of sharing. Use the words from the reading passage and the Useful expressions to help you. 1. When did it happen? 2. What happened? 3. How did you feel about it? 4. What have you learnt from it? >Useful expressions ▶ I have shared... with... for / since... ▶Sharing really brings... ▶Sharing has allowed / shown / taught me... ▶One day,... ▶How does sharing make you feel? ▶lt makes me feel... 1. When did it happen? It happenend last year. It was our school trip to City Park. 2. What happened? My classmate Lei Mei forgot to bring her lunch her lunch. She was hungry and sad. That’s really bad. Who helped her? 3. How did you feel about it? I shared my fired rice with her. Two other classmates shared their fruit and milk with her. You were really kind! How did you feel? It made me feel happy. 4. What have you learnt from it? Sharing really bring us close as friends. Since then, I’ve also shared many things with other friends. That’s very nice. 1. This year, Uncle Jimmy plans to give away 800 ice creams. 今年，吉米叔叔计划赠送800个冰激凌。 Language points give away意为“赠送；捐赠” ，为“动词+副词”型短语。 give away + 名词 = give + 名词 + away give+人称代词（只能放中间）+away I decide to give away the toys to a children’s hospital. =I decide to give the toys away to a children’s hospital. 我决定把这些玩具捐赠给一所儿童医院。 I don’t need these books. I plan to give them away to the library. 我不需要这些书。我打算把它们捐给图书馆。 与give相关的其他短语： 2. Sharing has allowed/shown/taught me...分享允许/展示/教会了我…… allow 动词，意为“允许，容许，准许”。 用法： Biking allows me to experience the beauty along the road. 骑自行车让我体验沿途的美景。 People are not allowed to talk loudly when they are in the library 人们在图书馆时不允许大声说话。 一、单词拼写，每空限一词。 1. Our teacher asked us to read three ________(文章) for homework. 2. The museum contains some ________(无价之宝) works of art. 3. We need a good _____(计划) before starting the project. 4. The university ______(提供) many scholarship opportunities. 5. What's the ________ (主题思想) of the movie? It's "Never give up". articles Exercises priceless plan offers message 1. 你踢足球踢了多长时间了? How long have you ____________? 2. 他们从去年起就住在这里了。 They _________ here _____ last year. 3. 他离开家乡已经两年了。 He ____________ from his home town ___ two years. 4. 自从去年有了电脑，我就没怎么锻炼了。 I ____________ much exercise since l got my computer last year. played football have lived 二、根据汉语提示，完成句子。 since has been away for have not done （ ）1. Panda Yaya ________ to Beijing Zoo for over one year. She is taken good care of there.（2024·四川广元） A．was back B．came back C．has come back D．has been back （ ）2. I ______ China for three months and this is the first time I’ve tried on hanfu. A．have gone to B．have been to C．have arrived in D．have been in 中考链接 （ ）3. —How long has she ________ the science book? I want to borrow it from her. —For nearly three weeks. I think she might have finished reading it.（2025·黑龙江） A．buy B．had C．bought （ ）4. —The book is worth reading. How long may I ________ it? —________ a week.（2024·黑龙江） A．keep, For B．borrow, For C．lend, In Homework Finish the exercises in the workbook. null 50763.406 $