现在完成时专题课件Unit7 A Good Read 2026-2027学年人教版英语八年级下册

人教版初中英语 现在完成时专题课件 同学们好，今天我们学习现在完成时。这是初中英语最重要的时态之一，也是中考必考语法点。 <#> Contents 目录 1. Structure 结构 2. Meaning 意义 3. Comparison 与现在时/过去时对比 4. Usage 用法 5. Sentence Types 肯定/否定/疑问 6. Signal Words 标志词 7. Past Participles 过去分词 8. Common Mistakes 易错提醒 9. Writing Challenge 终极写作挑战 Click to add text <#> 主语 + have / has + 过去分词 (p.p.) e.g. I have finished. They have left. e.g. She has seen the film. He has gone home. have/has 是助动词，后面必须接过去分词 I have done. I have do. 1. Structure 结构 先讲结构：have还是has看主语单复数。后面必须接过去分词。 <#> 1. Structure — Practice 1. I ___ already finished my homework. A. have B. has 2. She ___ seen this movie twice. A. have B. has 3. They ___ (have/has) met each other before. 4. My best friend ___ (have/has) just left school. 5. 改错：We has done the work. → ______ have has have 先让学生自己做，然后翻页对答案。 <#> 现在完成时 = 连接过去与现在的桥梁 I lost my key. → 只说过去丢过，现在可能找到了 I have lost my key. → 过去丢的，现在还没找到，现在开不了门 2. Meaning 意义 核心：过去动作和现在有联系。对比lost和have lost的区别。 <#> 现在完成时 = 连接过去与现在的桥梁 I saw the film. → 只说过去看过，不强调现在 I have seen the film. → 过去看过，现在还记得剧情 不关心什么时候做的，只关心现在怎么样了 2. Meaning 意义 核心：过去动作和现在有联系。对比lost和have lost的区别。 <#> 2. Meaning — Practice (1/2) 1. —Why are you happy? —I ___ my lost watch! A. found B. have found C. find 2. 判断："I have eaten breakfast." = 现在不饿了。 3. 判断："He has left home." = 现在他不在家。 4. 想告诉同学"我看过这电影，知道剧情"，说： A. I saw the film. B. I have seen the film. 5. 想告诉妈妈"我写完作业了，可以玩了"，说： A. I did my homework. B. I have done my homework. B True True Click to add text <#> 2. Meaning — Practice (2/2) 6. 判断："She has bought a new bag." = 她现在有新包。 7. 想告诉朋友"我去过杭州，知道那里"，说： A. I went to Hangzhou. B. I have been to Hangzhou. 8. 用现在完成时说：门已经关了。→ ______ 9. Tom饿因为他 ___ (didn't eat / hasn't eaten) 早餐。 10. 哪句强调现在结果？ ① She went to the shop. ② She has gone to the shop. True The door has been closed. √ Click to add text <#> 3. Comparison 三种时态对比 1.一般现在时：现在的习惯/事实 标志词：every day, usually, often 1. He walks to school every day. 2.一般过去时：过去发生，和现在无关 标志词：yesterday, last week, ...ago 2. He walked to school yesterday. 3.现在完成时：过去对现在有影响/持续到现在 标志词：already, yet, ever, never, for, since 3. He has walked to school for 3 years. 核心区别：有明确过去时间用过去时，不能用完成时。 <#> 3. Comparison — Practice (1/2) 1. I ___ to school every day. A. walk B. walked C. have walked 2. I ___ my grandma yesterday. A. meet B. met C. have met 3. I ___ already ___ my homework. A. have;done B. have;do C. has;done 4. "I saw that film last week." 能改成 "I have seen...last week."吗？ 5. 用 every day / yet 填空： ① She reads English . ② Have you done it ? every day yet 完成时不能加具体时间 Click to add text <#> 3. Comparison — Practice (2/2) 6. My father ___ this bike for 10 years. A. keeps B. kept C. has kept 7. 改错：I have bought this bike last year. → ______ 8. 翻译：他每天写日记。他昨天也写了。 9. 时态填空：① My mom often ___ (tell) stories. ② She ___ (tell) me a story yesterday. ③ She ___ already ___ (tell) me the news. 10. 判断(T/F): "He has taught English for 20 years. He started in 2006." ① He still teaches now. (　) ② He stopped after 2006. ( ) have bought改为bought He writes diaries every day. He wrote one yesterday, too. tells told has told T F Click to add text <#> 4. Usage 用法 用法①：过去动作对现在有影响/结果 I have lost my key. He has gone to Beijing. He has eaten dinner. 用法②：从过去持续到现在的动作/状态 for + 时间段：for 10 days（持续10天） 1. He has kept this book for 10 days. since + 时间点：since Monday（从周一起） 2. He has kept this book since Monday. Click to add text <#> 4. Usage — Practice (1/2) 1. "I have lost my key." 重点体现完成时的哪种用法？ A. 对现在的影响 B. 持续到现在 2. "She has kept this book for 6 years." 哪种用法？ A. 对现在的影响 B. 持续到现在 3. "Have you eaten lunch?" "Yes, I'm not hungry." 哪种用法？ A. 对现在的影响 B. 持续到现在 4. We have known each other since we were children. (用法②翻译) 自从儿时起，我们就认识彼此。 5. He has lost his pen, so he can't write now. (用法①翻译) 他弄丢了钢笔，所以现在没法写字。 √ √ √ Click to add text <#> 4. Usage — Practice (2/2) 6. They ___ friends since 2020. A. are B. were C. have been 7. 翻译：我写完作业了，现在可以玩了。 8. 翻译：这本书他借了两周了。 9. 填空： We (know) each other since primary school. He (leave) home early. He (see) the doctor. I just (get) a message from him. 10. 判断用法： ① The train has gone. ② He has kept the bag for 10 minutes. √ I have done my homework, so I can play now. He has kept this book for two weeks. have known has left has seen have got 用法①：过去动作对现在有影响 用法②：从过去持续到现在的动作/状态 Click to add text <#> 5. Sentence Types 肯否疑结构 1.I have seen the film. 2.I haven't seen the film. 3.Have you seen the film? Yes, I have. / No, I haven't. 肯定句：主语 + have/has + 过去分词 否定句：主语 + have/has + not + 过去分词 一般疑问句：Have/Has + 主语 + 过去分词 根据例句总结三个句型的结构 Click to add text <#> 5. Sentence Types — Practice (1/2) 1. They haven't ___ the museum yet. A. seen B. see C. seeing 2. —___ she ___ her work? —Yes, she has. A. Have;done B. Has;done C. Has;did 3. 改否定句：He has read this book. 4. 改一般疑问句：They have met here before. 5. —Have you ever been to Shanghai? 否定回答 → ______ √ √ He hasn't read this book. Have they met here before? No, I haven't. Click to add text <#> 5. Sentence Types — Practice (2/2) 6. —Has he left the room? —___. He is still here. A. Yes, he has. B. No, he hasn't. C. No, he didn't. 7. 改错：Have you ever went to the zoo? → ______ 8. 翻译：你还没写完信吗？→ 9. 改成否定句：I have already eaten breakfast. 10. 连词成句： ① (they/not/do/have/yet/the work) → ② (ever/you/have/been/there) → √ been Haven't you written the letter yet? I have not eaten breakfast yet. They haven't done the work yet. Have you ever been there? Click to add text <#> He has been to Beijing. = 他曾经去过北京（已回） 人已回家，在回忆旅行 He has gone to Beijing. = 他已经去北京了（未回） 人还在北京，不在这儿 6. Signal Words 标志词 1.already：已经。（肯定句，have/has后） I have already finished. 2.yet：还。（否定句/疑问句，句末） I haven't finished yet. Have you finished yet? 3.just：刚刚。（肯定句，have/has后） He has just finished. 4.ever：曾经。（疑问句） never：从不。（否定句） Have you ever been to Beijing? I have never been there. 5.for + 时间段 / since + 时间点 for 5 years / since 2020 Click to add text <#> 6. Signal Words 标志词 5.for + 时间段 / since + 时间点 I have lived in Lishui for 5 years. I have lived in Lishui since 5 years ago. =I have lived in Lishui since 2021. Click to add text <#> 6. Signal Words — Practice (1/2) 1. I have ___ finished dinner. A. already B. yet C. ever 2. Have you seen the new film ___? A. already B. yet C. never 3. She has ___ eaten sushi. She wants to try it. A. already B. ever C. never 4. 用 for/since 填空： ① We have studied English 2020. ② He has kept this bag 10 years. 5. "Have you already finished?" 对还是错？ Have you finished yet? √ √ √ since for ❌️删除already 句末加yet Click to add text <#> 6. Signal Words — Practice (2/3) 6. —Has the train left ___? —Yes, it has ___ left. A. already;yet B. yet;just C. yet;never 7. 改成疑问句：I have already seen that film. 8. 翻译：我认识他已经三年了。 √ Have you seen that film yet? I have known him for 3 years. Click to add text <#> 6. Signal Words — Practice (3/3) 9. 选词填空：already/yet/ever/never/just/for/since ① Have you been to Hangzhou? ② No, I have been to Beijing. ③They have left. They were here 2 minutes ago. ④ The movie hasn't started . ⑤ We have lived here 2019. 10. 选词填空：already/yet/ever/for/since I have made new friends! I haven't found the library . I have studied English 6 years. Have you moved to a new school? ever never just yet since already yet for ever Click to add text <#> 7. Past Participles 过去分词 1.规则变化（同过去式加ed）： work→worked live→lived stop→stopped study→studied play→played Click to add text <#> 7. Past Participles (2/2) buy — bought — bought bring — brought — brought think — thought — thought tell — told — told leave — left — left feel — felt — felt keep — kept — kept make — made — made meet — met — met get — got — got read — read — read put — put — put cut — cut — cut do — did — done go — went — gone see — saw — seen eat — ate — eaten take — took — taken speak — spoke — spoken write — wrote — written Click to add text <#> 7. Past Participles — Practice (1/2) 1. 写过去分词：see→ eat→ go→ _ 2. 写过去分词：write→ meet→ ___ 3. 写过去分词：buy→ leave→ keep→ _ 4. I have _ the book. A. read B. readed C. reading 5. He has went to school. 对还是错？ seen eaten gone written met bought left kept √ ❌️，went 改为：gone Click to add text <#> 7. Past Participles — Practice (2/2) 6. 写过去分词：speak→ do→ take→ 7. She has (write) three letters. 8. 改错：They have written a letter yesterday. → ______ 9. 写过去式和过去分词： see bring think cut 10. 填空：I (know) Li Ming for 5 years. We (do) many things for the last month. we (go) to the museum on September 15th. I never (see) so many things. We already (make) a plan. spoken done taken written have written改为wrote saw seen brought brought thought thought cut cut have known have done went have seen have made Click to add text <#> 8. Common Mistakes 易错提醒 易错①：三单用has。She has... (× She have...) 易错②： already用于肯定句；yet用于疑问/否定；ever用于疑问句 since+时间点；for+时间段 易错③：just/ever/never放在have/has和过去分词之间。 易错④：不规则过去分词不加ed，如 read-read write-written begin-begun 易错⑤：有明确过去时间(yesterday/last year)不能用完成时。 正确：I saw him yesterday. (× I have seen him yesterday.) Click to add text <#> 8. Common Mistakes — Practice (1/2) 1. 改错：She have finished her homework. → ______ 2. 改错：I have seen him yesterday. → ______ 3. Have you finished the homework ___? A. already B. yet C. just 4. 改错：He has wrote a letter. → ______ 5. I have ___ been to Japan. It's my dream. A. ever B. never C. already has have seen改为saw √ wrote改为written √ Click to add text <#> 8. Common Mistakes — Practice (2/3) 6. 改错：They have went to the park last Sunday. 7. —Have you ___ been to the Great Wall? No, ___. A. ever;never B. never;ever 8. 改错：I have just now finished my work. √ 删除have 删除now Click to add text <#> 8. Common Mistakes — Practice (3/3) 9. 找错（每句一处）： ① She has keep this bag for 5 years. → ______ ② Have you did finished yet? ③ I have readed this book twice. → ______ ④ He have just left. → ______ 10. 短文改错（5处错误） Tom have lived in Beijing since 10 years. He has already went to the Great Wall, but I haven't been to there yet. I want to go there last year, but I was busy. keep改为kept readed改为read have改为has for has gone wanted 删除did 删除to Click to add text <#> Writing Challenge 用现在完成时写作（七上 & 八上） Click to add text <#> Writing Task 1 假设你是李华，你交了一位英国笔友Peter。 请写一封邮件介绍你自己，必须包含： 1. 你已经学英语几年了 (have studied...for/since...) 2. 你曾经去过哪些地方 (have ever been to...) 3. 你已经读过哪些书/做过什么事 (have already...) 4. 你还没做但想做的事 (haven't...yet) 词数：60-80词 Click to add text <#> Writing Task 1 — Grade 7 Dear Peter, I’m Li Hua. I’m glad to be your new pen pal. I have studied English for 5 years. I have been to Hangzhou with my family. I have already read some English storybooks. But I haven’t visited the UK yet. I hope I can visit the UK some day. Looking forward to your reply. Yours, Li Hua Click to add text <#> Writing Task 2 你校就郊游活动征集意见，给校长Mr. Smith写邮件， 选择一个方案并说明理由，必须包含： 1. 你们已经去过哪些地方郊游 (have already been to...) 2. 你们还没去过哪里但想去 (haven't been to...yet) 3. 你曾经参加过什么活动，收获了什么 (have ever...) 4. 你建议去哪里，为什么 词数：80-100词 Click to add text <#> Writing Task 2 — Grade 8 Dear Mr. Smith, I’m writing to share my idea about our school trip. Our class has already been to the city park. We haven’t been to the mountain village yet. I have taken a farm trip and learned much about nature. So I suggest we go to the mountain village. We can enjoy fresh air and learn about village life there. It will be a wonderful trip. Yours, Li Hua Click to add text <#> 提升 加分句型 Click to add text <#> 最高级和完成时的搭配 This is the most beautiful dress that I have seen. Click to add text <#> 序数词和完成时的搭配 This is the first time that I have eaten dumplings. Click to add text <#> $