Unit 7语法现在完成时 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，从"过去-现在"时间轴切入，通过"have/has done"结构解析及与一般现在、现在进行等时态的对比表格，搭建旧知到新知的学习支架，帮助学生理解时态核心及时间标志词用法。 其亮点在于结合《水浒传》等文学作品和中国地名实例，通过标志词分类、易混淆结构对比培养思维品质，练习题从填空到翻译递进提升语言能力。学生能系统掌握时态，教师可高效开展教学，助力核心素养发展。

现在完成时 present perfect tense have/has done 动词的过去分词形式，动作已完成，事情落下、做完、结束了 表达时间是当下 Time 现在 过去 站在当下这一刻回看：这件事我已经做完、拥有完成结果。因此，该结构强调过去的事情对现在的影响 二、时态核心构成 have / has + 动词过去分词（done） 主语三单（he/she/it/单个人）→has done 主语非三单（I/you/we/they/多人）→have done 中文固定翻译：已经…… / 曾…… / 从未…… / 一直都…… She has finished reading. 她已经看完书了。 I have visited this lake.我曾来过这片湖泊。 He has never played football.他从未踢过足球。 We have been good friends.我们一直都是好朋友。 I have already finished reading The Time Machine. 我已经读完《时间机器》了。 She has already made friends with the new student. 她已经和新同学交上朋友了。 I haven’t finished my sports training yet. 我还没完成体育训练。 Have you read Outlaws of the Marsh yet? 你已经读《水浒传》了吗？ 三、时间标志词 已经，放在肯定句里，have/has 和过去分词中间 "还"，用于否定句、疑问句中固定放在句尾 Have you ever swum in the sea? 你曾经在海里游过泳吗？ Has she ever seen a movie about space? 她曾经看过太空主题的电影吗？ I have never been to the marsh before. 我以前从没去过沼泽。 He has never read a romance novel. 他从没读过言情小说。 在否定含义的句子里（本身自带否定），位置和 already/ever 一样。 曾经，用于疑问句，have/has 和过去分词中间 “从未”，have/has 和过去分词中间 We have just won the basketball game! （我们刚刚赢了篮球赛！） She has just found her lost key. （她刚刚找到了丢失的钥匙。） They have done many outdoor activities recently. （他们最近参加了很多户外活动。） I have read three classic novels recently. （我最近读了三本经典小说。） "刚刚",只在肯定句里，位置也和 already 一样。 "最近"，放在句末，也可以放句首，用在肯定句 / 否定句都可以。 I have seen this movie before. （我以前看过这部电影。） Have you met him before? （你以前见过他吗？） So far, we have planted 100 trees. （到目前为止，我们已经种了 100 棵树。） She has read 5 books this month so far. （到目前为止，她这个月已经读了 5 本书。） "以前",放在句尾，不区分肯定 / 否定 / 疑问。 "到目前为止"，可以放句首或句尾 I have played football since 2020. （我从 2020 年起就踢足球了。） He has lived here since he was 10 years old. （他从 10 岁起就住在这里了。） 10. for + 时间段 （持续……） We have been good friends for 5 years. （我们已经是 5 年的好朋友了。） She has practiced swimming for two hours. （她已经练习游泳两个小时了。） "自从",接具体年份，也可以接句子（句子用一般过去时），主句必须用现在完成时。 "持续..."，后面接一段时间，表示动作持续到现在，主句用现在完成时。 一般现在时 1. 肯定句：主语 + have/has + done I have made many good friends. 我已经交到了许多好朋友。 The rain has stopped. 雨已经停了。 This experience has been amazing so far. 到目前为止，这次经历一直都很棒。 She has read this novel. 她已经读过这本小说。 He has played basketball for years. 他已经打篮球很多年了。 四、句子结构 2. 否定句：主语 + have/has not + done 缩写：haven't / hasn't I have not finished my mood diary. 我还没写完心情日记。 The wind has not blown strongly. 风还没有猛烈刮起。 They haven't heard of this book. 他们从没听过这本书。 He has never been to the Great Wall. 他从未去过长城。 They haven't tried this kind of food before. 他们以前从没尝过这种食物。 3. 一般疑问句：Have/Has + 主语 + done…? 回答：Yes, 主语 + have/has. / No, 主语 + haven't/hasn't. Have you ever climbed a mountain? 你曾经爬过山吗？ -Yes, I have. No, I haven't. Has she ever read Outlaws of the Marsh? 她曾读过《水浒传》吗？ -Yes, she has. No, she hasn't. 4. 特殊疑问句: 特殊疑问词 + 一般疑问句 What books have you read? 你读过哪些书？ How many friends have you made? 你交了多少朋友？ Which subject have you improved most? 你哪门科目进步最大？ How long have you known each other? 你们认识多久了？ How many times have you run this week? 这周你跑了几次步？ Where have you been this summer? 这个夏天你去过哪里？ 五、核心考点专项 1. have been to / have gone to / have been in（逢考必有） have been to 去过某地, 人已回来 have gone to 去了某地, 人不在现场 have been in 待在某地, 持续一段时间 I have been to Beijing twice. 我去过北京两次。（已回） She has gone to the library. 她去了图书馆。（人不在这里） They have been in Shanghai for three years. 他们在上海待了三年了。 2. has been 的理解与翻译 This experience is amazing.一般现在时, 这次经历很棒。（说现在） This experience was amazing.一般过去时, 那次经历很棒。（已结束） This experience has been amazing so far. 现在完成时这次经历一直都很棒。（持续至今，未结束） have/has been+ 形容词/名词/介词（be的过去分词） “从过去到现在一直都……” She has been ill for a week. 她病了一周了。 He has been a teacher for ten years. 他当老师十年了。 They have been in the classroom since 8:00. 他们从八点起就一直在教室。 3. 特殊句式：It is/has been + 时间段 + since... 自从…… 以来，已经过去多久了 It is/has been three years since he left. 自从他离开已经三年了。 It is half a year since we took part in the sports game. 距离我们参加那场运动会已经半年。 It has been a week since the heavy rain stopped.大雨停歇已经一周时间。 It has been three years since we became friends. 自从我们成为朋友，已经三年了。 I have bought this book for a week. I have had this book for a week. ❌ ✅ 判断对或错 瞬间动词不能与 for/since 连用，必须转换为延续性动词。 buy---have---I have had this book for a week. borrow---keep---You can keep it for two weeks. leave---be away---He has been away for two days. die---be dead---The dog has been dead for a year. begin/start---be on---The film has been on for 10 minutes. join--be in / be a member of---She has been in the club since 2020. come/go---be here/there---They have been here since Monday. get married---be married---They have been married for 10 years. practice 从方框中选择正确的标志词填空。 Have you _______ been to Shanghai? I have _____________ finished my homework. Let me have a rest. He hasn't called me _______. She has _______ eaten sushi. She doesn't know what it tastes like. We have learned five English songs _______ this term. | already | yet | ever | never | just | before | so far | since | for | ago | ever already / just yet never so far I have seen this movie _______. I watched it last year. They have lived here _______ 2015. My sister has been a teacher _______ ten years. He went to the library two hours _______. Has the bus arrived _______? We've been waiting for half an hour. before since for ago yet | already | yet | ever | never | just | before | so far | since | for | ago | 根据句末提示的标志词，用动词的适当形式填空。 I _______________ (finish) my homework already. He _______ (go) to the museum yesterday. We ______________ (not see) each other since we graduated. She ___________ (live) here for eight years. They _______ (win) the match last week. I _______ never _______ (travel) by plane before. _______ you ever _______ (be) to Hong Kong? have finished went haven't seen has lived won have travelled Have been He _______ just _______ (arrive) at the station. My mother _______ (buy) a new dress two days ago. She ______________ (not reply) to my message yet. We _____________ (know) each other . I _____________ (watch) that movie so many times so far. He ____________ (be) a doctor for ten years. They _______ (visit) the Great Wall last summer. _______ she ____________ (finish) her speech yet? has arrived bought hasn't replied have known have watched has been visited Has finished 中文句子翻英文，注意使用正确的标志词和现在完成时结构。 我已经吃过午饭了。（already） 他还没有做完作业。（yet） 你曾经去过北京吗？（ever） 她从未读过这本小说。（never） 我们刚刚打扫完教室。（just） 最近我交了很多新友。（recently） 到目前为止，我们队赢了五场比赛。（so far） 我认识汤姆已经六年了。（for） 自从2018年起，李老师就在这所学校教书。（since） 你今天过得怎么样？（How ... so far） I have already had lunch. He hasn’t finished his homework yet. Have you ever been to Beijing? She has never read this novel. We have just cleaned the classroom. I have made many new friends recently. So far, our team has won five matches/games. I have known Tom for six years. Mr. Li has taught at this school since 2018. How has your day been so far? 翻译下列句子，注意区分易混淆结构。 我爸爸不在家，他去上海出差了。（have gone to） 我去过上海两次，很喜欢那里。（have been to） 王叔叔来长沙三年了。（have been in） 这部电影已经开始半小时了。（begin → be on） 这本词典我可以借多久？（borrow → keep） 那只宠物狗已经死了两年了。（die → be dead） 他离开家乡十年了。（leave → be away） 这对夫妇结婚二十年了。（get married → be married） My father isn't at home. He has gone to Shanghai on business. I have been to Shanghai twice. I like it very much. Uncle Wang has been in Changsha for three years. The film has been on for half an hour. How long can I keep this dictionary? That pet dog has been dead for two years. He has been away from his hometown for ten years. This couple has been married for twenty years. $