Unit7 Section AGrammar 4a-4d课件2025-2026学年人教版英语八年级下册

该初中英语课件聚焦现在完成时，通过"Have you ever read...?"等阅读相关问题导入，激活学生经验后系统讲解用法、句型结构、过去分词变化及与一般过去时的辨析，构建从情境到语法规则的学习支架。 其亮点在于语法学习与阅读主题深度融合，用《汤姆·索亚历险记》等名著例句培养语言能力，通过对比表格和时间轴提升思维品质，引入多国文学作品增强文化意识。分层练习和小组访谈活动助学生实践应用，学生能在真实语境中掌握语法，教师可获得清晰教学路径提升效率。

Unit Seven A Good Read Sec A Grammar Focus 4a-4d Why should we read great books? Learning Objectives Lead in 3 Lead in "Who has read a book this year?" Have you ever read / joined ...? Do you know the English name of the books? 1. 展示奇幻、传记、悬疑等书籍封面，用现在完成时提问（"Who has read a book this year?"），学生需用"Yes, I've read..."或"No, I haven't tried..."回答并简述内容。Do you know the English name of these books? 2. 举手统计"Have you ever...?"类问题（如完成电子书阅读/参加读书会），汇总后引导学生用"__% of us have..."汇报结果，自然融入现在完成时数据表达。 3. 展示J.K. Rowling等作家简介，用"She has written 7 Harry Potter books"等例句，让学生仿写自己喜爱作家的成就，掌握延续性动词用法。 4. 要求学生用"I've already read... but I haven't started..."句型分享年度阅读进度，强化already/yet在现在完成时中的区别运用。 Presentation 5 Presentation Read the sentences and underline the presentperfect forms of the verbs. Pay attention to the meanings of the bold words. 4a Have you decided on a book for your report? Yes, I have./ No, I haven't. Has Peter ever heard of this book? No, he’s never heard of it. Has Chen Jie read this book yet? No, but she’s already borrowed it from the library. What have you read recently? I’ve just finished The Romance of the Three Kingdoms. I’ve=I have she’s=she has haven’t=have not hasn’t=has not Try to find out grammar points! THINK When do we use the present perfect tense? Do you know the forms of verbs in the present perfect tense? Can you circle the verbs of present perfect tense below? 用法 谓语构成 句型结构 过去分词变化规则 时间标志 辨析:现在完成时&一般过去时 现在完成时 用法 现在完成时表示_______发生或已经完成的动作，对_______造成的影响或结果，重点强调“动作和现在的联系”。 过去 现在 现在 过去 将来 站在现在回望过去 发生/完成 影响/结果 用法 现在完成时表示_______发生或已经完成的动作，对_______造成的影响或结果，重点强调“动作和现在的联系”。 过去 现在 我上周看了这部电影。 I watched the movie last weekend. 现在 过去 将来 站在现在回望过去 我了解这部电影。 I know this movie. 我看过这部电影。 I have already watched the movie. 了解电影的内容 用法 现在完成时表示_______发生或已经完成的动作，对_______造成的影响或结果，重点强调“动作和现在的联系”。 过去 现在 站在现在回望过去 ①我写完了读书报告。 I have finished the book report. 不用再写了，可以上交了 ②他从名著中学到了很多生词。 He has learned many new words from classic books. 现在他的词汇量变大了 ③我们读过这个故事很多遍。 We have read the stories many times. 现在我们对故事非常熟悉 这些句子的动作都发生在过去，但都直接影响了“现在的状态”，这就是现在完成时的核心意义。 谓语构成 ①我写完了读书报告。 I have finished the book report. 不用再写了，可以上交了 ②他从名著中学到了很多生词。 He has learned many new words from classic books. 现在他的词汇量变大了 ③我们读过这个故事很多遍。 We have read the stories many times. 现在我们对故事非常熟悉 have/has+过去分词 Attention: I/We/You/They/The boys have ... He/She/It/The boy has ... 句型结构 1.我已经读完了《汤姆·索亚历险记》。 2.她已经从图书馆借了《小王子》。 3.我已经为读书报告选好了《卖火柴的小女孩》。 肯定句: I have already finished reading The Adventures of Tom Sawyer. She has already borrowed The Little Prince from the library.  I have already chosen The Little Match Girl for my book report. 主语 + have / has + 过去分词 + ... I have=I’ve We have=We’ve They have=They’ve She has=She’s He has=He’s ... 句型结构 肯定句: I have already finished reading The Adventures of Tom Sawyer. She has already borrowed The Little Prince from the library.  I have already chosen The Little Match Girl for my book report. 主语 + have / has + 过去分词 + ... I haven't finished reading The Adventures of Tom Sawyer yet. She hasn't borrowed The Little Prince from the library yet. I haven't chosen The Little Match Girl for my book report yet. 否定句: 主语 + have / has + not + 过去分词 +... haven’t/hasn’t 句型结构 肯定句: I have already finished reading The Adventures of Tom Sawyer. She has already borrowed The Little Prince from the library.  I have already chosen The Little Match Girl for my book report. 主语 + have / has + 过去分词 + ... Have you finished reading The Adventures of Tom Sawyer yet? Has she borrowed The Little Prince from the library yet? Have you chosen The Little Match Girl for your book report yet? 否定句: 主语 + have / has + not + 过去分词 +... haven’t/hasn’t 一般疑: Have / Has + 主语 + 过去分词 + ...? 肯: Yes, 主语 + have / has.  否: No, 主语 + haven't / hasn't.  already(用于肯定句,意为 “已经”); yet(用于否定句或疑问句末,意为 “还;尚未”) 句型结构 肯定句: 主语 + have / has + 过去分词 + ... 否定句: 主语 + have / has + not + 过去分词 +... haven’t/hasn’t 一般疑: Have / Has + 主语 + 过去分词 + ...? 特殊疑: 疑问词 + have / has (+ 主语) + 过去分词 + ...?  1.你为读书报告选了哪本书？ 2.你读过《汤姆·索亚历险记》多少次了？ 3.她从哪里借到《小王子》的？ What book have you chosen for your book report? How many times have you read The Adventures of Tom Sawyer? Where has she borrowed The Little Prince from? 过去分词的变化规则 规则 变化 一般动词 以不发音的字母e  结尾的动词 以“辅音字母+y”结尾的动词 以重读闭音节结尾，且末尾只有一个辅音字母的动词 直接在词尾加  -ed 直接加  -d 变 y 为 i,再加 -ed 双写末尾辅音字母, 再加 -ed watch finish live move study try stop plan →watched →finished →lived →moved →studied →tried →stopped →planned 发音规律 1. 清辅音后读 /t/（清清） 2. 浊辅音或元音后读 /d/（浊浊） 3. /t/、/d/ 音之后读 /ɪd/ 过去分词的变化规则 不规则的过去分词可以根据其变化规律分为若干类。 不规则 变化 ①原型、过去式和过去分词拼写一致的不规则动词 read → read → read/red/ had → had → had cut → cut → cut put → put → put cost → cost → cost set → set → set ②过去式和过去分词拼写一致 teach → taught → taught /tɔːt/ think → thought → thought /θɔːt/ bring → brought → brought /brɔːt/ meet → met → met /met/ shoot → shot → shot /ʃɒt/ tell → told → told /təʊld/ find → found → found /faʊnd/ lose → lost → lost /lɒst/ leave → left → left /left/ buy → bought → bought /bɔːt/ 过去分词的变化规则 不规则的过去分词可以根据其变化规律分为若干类。 不规则 变化 ③原形(含字母i)—过去式(i变a)—过去分词(i变u) drink → drank /dræŋk/ → drunk /drʌŋk/ begin → began /bɪˈɡæn/ → begun /bɪˈɡʌn/ sing → sang /sæŋ/ → sung /sʌŋ/ ④原形(词尾为ow/aw)—过去式(词尾变ew)—过去分词(词尾变own) know → knew /njuː/ → known /nəʊn/ grow → grew /ɡruː/ → grown /ɡrəʊn/ throw → threw /θruː/ → thrown /θrəʊn/ ⑤其他 be(am/is/are) → was/were → been /biːn/ see → saw /sɔː/ → seen /siːn/ write → wrote /rəʊt/ → written /ˈrɪtn/ speak → spoke /spəʊk/ → spoken /ˈspəʊkən/ take → took /tʊk/ → taken /ˈteɪkən/ do → did /dɪd/ → done /dʌn/ go → went /went/ → gone /ɡɒn/ 时间标志 现在完成时常和 just(刚刚), already(已经), yet(已经,还), never(从不), ever(曾经), before(以前), so far(到目前为止), recently(最近地), twice(两次)等时间状语连用。 我刚刚读完了《三国演义》。 I've just finished The Romance of the Three Kingdoms. “刚刚”,表示动作刚完成,强调“刚结束” just 他从没听说过这本书。 He's never heard of the book. “从不”,表示从未有过某种经历。 never 时间标志 你曾经听说过这本书吗？ Have you ever heard of this book? “曾经”,用于疑问句,询问过去是否有过某种经历。 ever 我以前读过这个故事。 I've read this story before. “以前”,表示过去的某个不确定时间。 before 现在完成时常和 just(刚刚), already(已经), yet(已经,还), never(从不), ever(曾经), before(以前), so far(到目前为止), recently(最近地), twice(两次)等时间状语连用。 时间标志 到目前为止，我已经读了二十本书。 I've read twenty books so far. “到目前为止”,强调从过去到现在的时间范围。 so far 你最近读了什么书? What have you read recently? “recently”,表示动作近期发生 recently 现在完成时常和 just(刚刚), already(已经), yet(已经,还), never(从不), ever(曾经), before(以前), so far(到目前为止), recently(最近地), twice(两次)等时间状语连用。 时间标志 这本书我已经读过两次了。 I've read this book twice. “两次”,表示动作发生的次数 twice 现在完成时常和 just(刚刚), already(已经), yet(已经,还), never(从不), ever(曾经), before(以前), so far(到目前为止), recently(最近地), twice(两次)等时间状语连用。 时间标志 already yet “已经”,用于肯定句,强调动作已完成 “已经”,用于疑问句末,询问动作是否已经完成 “还(没);尚未”,用于否定句末,表示还没做过某事 辨析 她已经从图书馆借了这本书。 She's already borrowed the book from the library. -玛丽读过这本书了吗？ -不,玛丽还没有读过这本书。 - Has Mary read this book yet? - No, Mary hasn’t read this book yet. Attention: 在现在完成时的句子中，含有already  的陈述句变为否定句或疑问句时,通常要把already变成yet并放于句末。 辨析:现在完成时&一般过去时 一般过去时 现在完成时 辨析 核心含义 表示过去某个具体时间发生的动作或存在的状态,和现在无关。 表示过去发生的动作对现在造成的影响或结果,强调“现在”的状态。 时间标志 yesterday, last week, just now, in 2020, three days ago… already, yet, just, ever, never, so far, before, twice… 结构 主语 + 动词过去式 + ... 主语 + have/has + 过去分词 + ... 例句 我去年读了这本书。 我读过这本书了。 I read this book last year. I have read this book. 她昨天借了这本书。 她已经借了这本书了。 She borrowed the book yesterday. She has already borrowed the book. 用法 谓语构成 句型结构 过去分词变化规则 时间标志 辨析:现在完成时&一般过去时 现在完成时 Summary 肯定句: 否定句: 一般疑: 特殊疑: 现在完成时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，重点强调“动作和现在的联系”。 Summary have/has+过去分词 主语 + have / has + 过去分词 + ... 主语 + have / has + not + 过去分词 +... Have / Has + 主语 + 过去分词 + ...? 疑问词 + have / has (+ 主语) + 过去分词 + ...?  用法 谓语构成 句型结构 过去分词变化规则 时间标志 辨析:现在完成时&一般过去时 现在完成时 现在完成时常和 just(刚刚), already(已经), yet(已经,还), never(从不), ever(曾经), before(以前), so far(到目前为止), twice(两次)等时间状语连用。 Summary 用法 谓语构成 句型结构 过去分词变化规则 时间标志 辨析:现在完成时&一般过去时 现在完成时 规则 变化 不规则 变化 4a Read the sentences and underline the present perfect forms of the verbs. Pay attention to the meanings of the bold words. Have you decided on a book for your report? Yes, I have. / No, I haven’t. Has Peter ever heard of this book? No, he’s never heard of it. Has Chen Jie read this book yet? No, but she’s already borrowed it from the library. What have you read recently? I’ve just finished The Romance of the Three Kingdoms. I’ve = I have  she’s = she has  haven’t = have not  hasn’t = has not 曾经 从不 已经 刚刚 Look and share Have you ever read or heard of these books? Share what you know about them? The Adventures of Tom Sawyer Writer:______________ Type:________________ Mark Twain Adventure Tom Sawyer is a naughty, clever and brave boy. He lives in a small town and has many exciting adventures with his friends. The story shows children's daily life, friendship and the spirit of chasing freedom. 31 The Little Match Girl Writer:______________ Type:________________ Hans Christian Andersen Fairy tale On a cold winter night, a poor little girl sells matches in the street. She has no food or warm clothes. She lights matches and sees warm and beautiful dreams. Finally, she passes away and goes to her grandmother. 32 The Little Prince Writer:______________ Type:________________ Antoine de Saint-Exupéry Fairy tale The little prince lives on a small planet. He travels to many other planets and meets strange people. On the earth, he makes friends with a fox and a pilot. The story tells us about love, friendship and true heart. 33 The Little Prince Writer:______________ Type:________________ Shi Nai'an Historical fiction It tells the stories of many brave heroes in ancient China. They are kind and brave. They help poor people and fight against bad officials. The story shows courage, friendship and justice among ordinary people. 34 4b Complete the conversations with ever, never, just, already, or yet. 1. A: Have you ______ heard of the book The Little Prince? B: No, I’ve ______ heard of it. A: I’ve ______ finished reading it. It’s such a simple story, but you can learn a lot from it! 2. A: Have you chosen a book for your book report ______? B: Yes, I’ve chosen The Little Match Girl. It’s such a sad story, but I love it. I’ve ______ started writing my report. 3. A: I’ve ______ read a classic novel before. Could you recommend one? B: Well, I’ve ______ finished Outlaws of the Marsh. It’s really good! A: Oh, thanks! Could I borrow it? B: Sure! /ˌrekəˈmend/ v. 推荐;建议 ever never just yet already never just 4c Complete the passage with the simple past or present perfect forms of the verbs in brackets. ______ you ever ______ (try) to read books from different countries? At the start of this year, I ________ (decide) to read books from as many countries as possible. I ________ (begin) with The Adventures of Tom Sawyer. Now I ______ already ______ (read) twenty different books. These books _________ (teach) me a lot about other cultures and societies, and they __________ (allow) me to see the world differently. In the past, I only ______ (know) the names of different countries, but now I understand them a little bit better. This experience has been amazing so far. I never ________ (realize) how big our world really is! /səˈsaɪəti / n. 社会 Have Tip: Find the key words. tried decided began have read have taught have allowed knew realized What does the passage mainly tell us? An amazing reading experience. Read and answer 1. What did the author decide to do at the start of this year? 2. Which book did the author begin with? The author decided to read books from as many countries as possible. The author began with The Adventures of Tom Sawyer. 3. How many books has the author read so far? 4. What has the author learnt from reading these books? The author has read twenty different books so far. The author has learnt a lot about other cultures and societies. 5. How has this experience changed the author's understanding of the world? It has allowed the author to see the world differently, and made the author realize how big the world really is. Think 1. What amazing reading experiences did you have? 2. What have you learned from the books? 3. Why do you think it was an amazing experience? Group work Interviewer 1: Ask classmates "Have you ever...?" questions for Activities 1-3. Recorder: Write down "Yes/No" answers for all 6 activities in the following table. Reporter: Present the group's results to the class. Work in groups of four and interview your group member about their reading experiences. Interviewer 2: Ask classmates "Have you ever...?" questions for Activities 4-6. Activities S1 S2 S3 S4 read all four Chinese literary classics read a book in a different language read a book with more than 500 pages watched a movie based on a novel read a book more than twice joined a reading club Group work Have you ever ... ? Hello, everyone. This is our group's report. In our group, ______ people have read all four Chinese literary classics. ______ of us have watched a movie based on a novel. No one in our group has read a book in a different language. ... That's our report. Thank you! /ˈlɪtərəri/ adj. 文学的 /beɪs/ adj.以...为基础(或根据) n.根基;基础;根据地 Find out who has done these activities. Show time! Checklist Grammar The present perfect tense is used correctly (e.g., “3 people have done…”). ★★★★★ Content The reporter talks about all 6 reading activities clearly. ★★★★★ The content is correct. ★★★★★ Pronunciation The reporter speaks clearly, with good pronunciation and no long pauses. ★★★★★ Presentation The reporter makes eye contact, speaks loudly enough, and looks confident. ★★★★★ Sample Good morning, everyone! This is our group’s report. We interviewed all four members in our group about their reading experiences. Here are our results: Two people in our group have read all four Chinese literary classics. Three of us have watched a movie based on a novel. One student has read a book in a different language. No one in our group has read a book more than twice. One person has read a book with more than 500 pages. Two of us have joined a reading club. From our interview, we found that watching movies based on novels is the most popular activity in our group. It’s really fun to share stories and books with each other! Checklist Contents Stars □ I know the structure of the present perfect tense. ★★★ □ I can use already, yet, ever and never correctly. ★★★ □I can tell the difference between present perfect and simple past tense. ★★★ □ I can use the present perfect tense to talk about reading experiences. ★★★ Total stars: ______________________________________________ Self-assessment Reading is the window to the world. 阅读是通往世界的窗户。 $