Unit 2 Period 3 Grammar课件 2026-2027学年外研版英语八年级上册

该初中英语课件聚焦现在完成时中“for+时间段”“since+时间点”的用法及延续性与非延续性动词转换，通过《巨人的花园》故事分情节梳理，从故事句子提取语法现象，搭建从阅读到语法的学习支架，引导学生观察总结规则。 其亮点在于以故事创设语境提升语言能力，动词转换口诀“常用结束变状态...”培养学习能力，小组讨论分享经历锻炼思维品质。例如用故事句子引出语法，口诀助记转换规则，讨论中运用for/since描述经历。学生能在情境中掌握语法，教师可依托完整教学链条高效教学。

Grammar Unit 2 Getting along 1 新课讲授 Let’s review Beginning The Giant _______ (have) a large garden and the children play in it every afternoon. Rising action The Giant ________ (be) away for a long time. One day, he comes back. He finds the children in his garden and _________ (shout) at them. The children run away. Since then, he __________ (see) a child there, and spring __________ (come) to his garden. Climax One morning, the Giant hears birds singing. He jumps out of bed and _____ (look) outside. The children __________________ (return), and the garden is lively again. He thinks he ________ (be) selfish. Ending The Giant _______ (knock) down the wall and tells the children the garden is theirs. has been shouts hasn’t come has been has looks knocks have returned / return hasn’t seen Observation Read the sentences from the reading passage and summarise the grammar rules. (a) The Giant has been away for a long time. (b) Since then, he hasn't seen a child there. For + 时间段 (Duration): _____________________ Since + 时间点 (Starting Point): _______________ 强调动作持续了多久 强调动作从何时开始 5 Now find one more sentence with these structures in the reading passage. (2) I haven't heard that beautiful birdsong for a while. (3) I believe spring has come at last. (4) And the trees are so glad that they have covered themselves with flowers. (5) How selfish I’ve been! (1) “I can not understand why spring has not come since last year, ” says the Giant. Understanding 现在完成时Ⅱ 1.用法： 现在完成时表示从过去某时开始持续到现在（包括“现在”在内）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。 例 Over the past ten years, our city has changed a lot. 在过去的十年里，我们的城市变化很大。 I have lived here since 2018. 自从2018年以来我就居住在这里了。 Understanding Understanding 2. 延续性动词与非延续性动词 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 , go ,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 Understanding 3. 常用非延续动词(短语)与延续性动词(短语)的转换。 begin / start - be on come - be / in / at leave - be away (from) buy - have die - be dead fall ill - be ill fall asleep - be asleep finish / end - be over go - be away join - be in ( a member of ) borrow - keep arrive - be here go out - be out catch a cold - have a cold 口诀助记： 常用非延续动词(短语)与延续性动词(短语)的转换: Understanding 常用结束变状态， 来去加入有转换， 借买生病和睡觉， 到达感冒巧分辨， 动作持续与瞬间， 转换规则记心间。 Application 6 Complete the sentences with for or since. 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. 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。 Application Complete the news article with for, since and the correct form of the words in brackets. 7 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. Every year, on 22 March—his birthday—he 2______ (offer) free ice creams. He has done this 3______ his 70th birthday. for offers since This year, Uncle Jimmy plans to give away 800 ice creams. "People 4__________ (be) quite stressed recently and I want to help," he said. "Sharing has made me feel happy 5_____ the past four years." He 6 ________ (enjoy) talking with his customers. Many of them have become his friends 7______ they first met. Some students helped him set up social media pages. He has made many friends online 8______ then. have been for enjoys since since 8 Work in pairs. Discuss your experience of sharing. Use the words and expressions from the reading passage and the Useful expressions to help you. Innovation 1. When did it happen? It happened last year. It was our school trip to City Park. 2. What happened? My classmate Lei Mei forgot to bring her lunch . She was hungry and sad. That’s really bad. Who helped her? 3. How did you feel about it? I shared my fried 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 brings us close as friends. Since then, I’ve also shared many things with other friends. That’s very nice. 课堂总结 现在完成时中 for & since 的用法 for：后接时间段 ，说明动作持续时长 例：We have been friends for Grade 3.（×,正确：for + 时间段,如 for 3 years ） 正确示例：They have been together for three years. since：后接时间点 / 一般过去时句子 ，表动作起始时间 例：Since last year, we’ve shared a lot of happy moments. 例：Many of them have become his friends since they first met. Homework ✍ 整理课堂笔记，抄写并背诵 “for”“since” 用法 规则及 3 - 5 个典型例句，强化语法记忆。 ✍ 用英语写一篇短文，描述自己一段持续的经历 (如学习某项技能、坚持的爱好等 ), 至少 3 处 运用 “for” 或 “since” ，字数 80~100 词。 $