Unit 7 Section A (4a-4c) 课件 2025-2026学年人教版八年级英语下册

Section A (4a-4c) Made by Qianmo-studio A Good Read Unit 7 1 1.To master the structure and usage of present perfect tense. 2.To differentiate between simple past tense and present perfect tense. 3.To apply the target grammar in real-life situations. Learning objectives 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 4a 彼得，你决定你的报告用哪本书了吗？是的，我决定了。 彼得听说过这本书吗？ 没有，他从没听说过。 陈杰读过这本书了吗？ 没有，但她已经从图书馆借走了。 你最近读了什么书? 我刚刚读完《三国演义》。 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。 表示从过去开始并持续到现在的动作或状态，常与包括现在在内的一段时间的状语连用。 现在完成时的用法 The classroom is so clean, who has cleaned it? We have learned English for 6 years. Presentation 主语 + have/has + 过去分词 现在完成时的结构 注：主语若是第三人称单数助动词用has; 规则动词的过去分词与其过去式相同， 不规则动词的过去分词则须加强记忆。 Presentation 规则动词的过去分词与过去式的构成相同。 不规则动词的过去分词须特殊记忆。例如： 规则动词 不规则动词 protect—protected—protected dance—danced—danced try—tried—tried stop—stopped—stopped put—put—put have—had—had do—did—done AAA型 ABB型 ABC型 过去分词的变化规则 Presentation 肯定句：主语 + have/has + 过去分词 + 其他. 否定句：主语 + have/has + not + 过去分词 + 其他. 一般疑问句：Have/Has + 主语 + 过去分词 + 其他？ 特殊疑问句：疑问词 + have/has + 主语 + 过去分词 + 其他？ 现在完成时的句型转换 肯定回答: Yes, 主语+have/has. 否定回答: No, 主语+haven’t/ hasn’t. Presentation 标志词 常用句型 含义与功能 ever never yet already just 疑问句 肯定句 疑问句/否定句 肯定句 肯定句 曾经，询问经历 从未，否定经历 刚刚，动作刚完成 已经，动作完成 还，迄今（否）；已经（疑） 现在完成时标志词 1 I have already read the story. I have just read the story. I have never read the story. I haven’t read the story yet. I have ever read the story. 常和 already（已经） yet（已经；还） just（刚刚） ever（曾经） never（从不） 等连用。 Presentation 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! ever never already yet already 4b never just v. 推荐；建议 Practice They have lived there before. She has finished her homework so far. The village has changed a lot in the past few years. We have been here for fifty years. We have been here since 1970. We have been here since 50 years ago. We have been here since we got married. 现在完成时标志词 2 for+时间段 in\during+过去的时间段 since+时间点 since+时间段+ago since+从句（一般过去时） Presentation 现在完成时 一般过去时 用法 标志词 只表示过去的动作或状态，与现在无关 表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况 常和already, yet, never, ever, just, so far, since, for等连用 常和yesterday, last week, just now, two days ago等具体的表示过去的时间状语连用 一般过去时和现在完成时区别 Presentation A: _________ you__________ (finish) homework? B: Yes, I have. A: When_________ you___________ (finish) it? B: I__________ (finish) it at 19:00. A: _________ you___________ (send) the letter to your cousin yet? B: Yes, I___________ (send) it last month. Have finished finished did finish Have sent sent Fill in the blanks. Practice 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! Have tried decided began have read taught allowed knew realized 4c 在……开始时 尽可能多地…… 在过去 有点儿；稍微 Practice have/has been to表示“曾经到过某地”，现在已经回来了；have/has gone to 表示“去了某地”，现仍在那个地方，没有回来。 She has been to the Great Wall.（去过长城，现在已经回来） She has gone to the Great Wall.（去了长城，现在仍在那里） ---Where is Tom? --- He ______ the teacher’s office. have/has been to、 have/has gone to区别 --- Have you known about China? --- Yes, I ______ there twice. A. have been to B. has been to C. have gone to D. has gone to A. have been B. have been to C. have gone D. have gone to D A Presentation Interview your classmates and find out who has done these activities. 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 4d 以……为基础（或根据） Practice 过去分词变化规则 过去动作对现在的影响 过去持续到现在的动作 have\has +过去分词 用法 与一般过去时的区别 have been to 与have gone to的区别 构成 句型结构 标志词: already、yet、just、ever、never 标志词 现在完成时 for + 时间段 since + 时间点\时间段\从句 so far \ before in\during + 过去时间段 规则变化：ed \d \辅+y变ied \双写+ed 不规则变化：AAA\ ABB \ABC 肯定句：主语 + have/has + 过去分词 + 其他. 否定句：主语 + have/has + not + 过去分词 + 其他. 一般疑问句：Have/Has + 主语 + 过去分词 + 其他？ 特殊疑问句：疑问词 + have/has + 主语 + 过去分词 + 其他？ have been to：到过某地，人已回 have gone to：去了某地，人未回 一般过去时：只表示过去的动作或状态，与现在无关 现在完成时：过去动作对现在造成的影响或结果 Summary 一、单项选择。 1.— It's ten years since we came here. — How time flies! We _____ in China for so long. A. work B. worked C. will work D. have worked 2.Today, all the erhu masters play and praise Erquan Yingyue. It _____ one of China's national treasures. A.becomes B. became C. has become D. become 3.Miss Brown, we _____ cleaning our classroom. Can we go home now? finish B. finishing C. are finished D. have finished 4.— Your new watch is so nice! When did you buy it? — In April. I ______ it for two months. A. have had B. had C. have bought D. bought 5.— Has your sister finished reading ________? — Yes. She has________ finished. A. yet; yet B. yet; already C. already; yet D. already; already D C D A B Exercises 二、用括号中所给单词的适当形式填空。 1.She __________(not read) the book yet. 2.________ you ________(decide) which book to buy yet? 3.Tom won't go to the cinema with us because he ________ already ________ (see) the film. 4.David hasn't ________(finish) ________(read) Harry Potter yet. 5.We ________ just ________(clean) the classroom. 6.I ________(lend) my bike to her yesterday, but she ____________ (not give) it back to me yet. hasn't read Have has seen finished have cleaned decided reading lent hasn't given Exercises 三、按要求改写句子，每空一词。 1.She has already written the music. (改为一般疑问句) ________ she written the music _______? 2.They studied English 2 years ago. (用 since two years ago 改写) They ______ ________ English since two years ago. 3.Has Tom helped his parents yet ? (作出肯定回答) _______, _____ _______. 4.The three students have been together for 3 hours. (对画线部分提问) __________ __________ have the three students been together? 5.She has already gone to England. (改为否定句) She _____________ gone to England _____________. 6.He hasn't come to school because he's ill. (对画线部分提问) _____________ _____________ he come to school? Has yet have studied Yes he has How long hasn't Why hasn't yet Exercises Remember the grammar points we’ve learnt today. Try to make five sentences with the present perfect tense. Finish the exercises after class. Homework recommend v. 推荐；建议 [动词]推荐 recommend sb. /sth. 推荐某人/某物 recommend sb. for sth. 推荐某人获得某物 recommend sth. to sb. 向某人推荐某物 (1)Could you recommend one?  你能推荐一本吗？ I highly recommend her for the 2024 youth star Award. 我强烈推荐她获得“2024年青年之星奖”。 Can you recommend a good lawyer? 你能介绍一位好律师吗？ I am looking for places of interest in china. Can you recommend some to me? 我正在寻找中国的名胜，你能给我推荐一些吗？ Language points ②[动词]建议 I recommend you to book your flight early. 我建议你早点儿预订航班。 recommend sb. to do sth. 建议某人做某事 He recommended reading the book before seeing the movie. 他建议先看这本书，再去看这部电影。 recommend doing sth. 建议做某事 Language points 过去分词短语作后置定语 based on a novel为过去分词短语，作后置定语，修饰a movie， base与a movie之间是动宾关系。过去分词短语作定语修饰名词时，通常放在名词的后面，相当于一个定语从句。 (2)Watched a movie based on a novel. 观看了一部根据小说改编的电影。(教材 P65 4d) I borrowed a book (which was) written by Mark Twain from the library. 我从图书馆借了一本马克.吐温写的书。 The boy (who is) named/called Tony is my cousin. 那个叫托尼的男孩是我的堂弟。 Language points base在此处作动词，常用结构为： base sth on sth 以……为基础；以……为根据 base... on/upon... 把……建立在……的基础上 Edison based his ideas on scientific experiments. 爱迪生的想法是建立在科学实验的基础上的。 be based on/upon... 以……为基础 The real-life version of Mulan is based on Hua Mulan in Chinese history. 真人版的木兰以中国历史上的花木兰为基础。 Language points $