Unit 3 The world at one click Grammar 课件 2025-2026学年译林版八年级英语下册

该初中英语课件聚焦一般过去时与现在完成时的用法及差异，通过“Work it out!”活动引导学生自主总结时态定义，结合时间轴图示构建动作与时间的关联，形成从概念辨析到情境应用的学习支架。 其亮点是以线上活动为主题设计真实对话练习，如在线博物馆交流情境提升语言能力，通过对比练习和时间轴可视化培养思维品质，提供易错点清单和分层作业助力学习能力发展，帮助学生准确掌握时态，为教师提供系统教学资源。

Unit 3 The world at one click 新译林版 Grammar To review the uses of simple past tense and the uses of present perfect tense.（学习理解） 01 To tell the differences between the simple past tense and the present perfect tense.（应用实践） 02 To be able to make up some sentences using the simple past tense and the present perfect tense.（迁移创新） 03 教学目标 simple past present perfect Differences between simple past tense and present perfect tense Let’s enjoy Have you ever heard of this song? Simple past tense (一般过去时) Present perfect tense （现在完成时） Finish Part A on page 41 Practice: Finish Part A on page 41 Have tried have seen visited have played has visited has learnt Practice: Finish Part B on page 42 B Some students are talking about online tours.Complete their sentences with thecorrect forms of the words in brackets. 1 Simon:Last month,I________(introduce)some online museums to myfriend Neil in the UK.He_______(visit)three of the museums so far. 2 Amy: I_____(collect)two pages of information from the website ofthe Water Cube so far.My sister Shirley_________(sign)up for a swimming trainingcourse on its website yesterday. 3 Kitty: I_______(visit)Shanghai Ballet online last Saturday.They______ _____(put)a list of different shows on the websiterecently. 4 Millie: I______(visit)Digital Dunhuang three times.My brother Andy_______(not visit)it yet. 5 Daniel:I________(write)a report about online tours yesterday.I_________(send)the report to Mr Wu already. decided has booked made has been told Further thinking: What’s the reason for not using the simple past tense? the result of an action Practice: Finish Part C on page 42 易错点提醒（一） 1.现在完成时不能与yesterday/last week等连用 2.一般过去时必须有明确的过去时间状语 3.看到ever/never/yet/so far，直接用现在完成时 4.看到ago/last+时间/in+过去年份，直接用一般过去时 5.注意：主语为三单时，现在完成时用has Read and work out What do the sentences tell us? 描述过去的动作，且该动作的时间（已经结束）。 It tells us that the action happened in the past and the action is over. It tells us that the action started in the past and continues to the present. It lasts for a period of time. 谈论始于过去并持续到现在的动作。 易错点提醒（二） 1.have been to：去过某地（已返回，可接次数） 2.have gone to：去了某地（未返回，不可接次数） 例：He has been to Beijing twice.（正确） 例：He has gone to Beijing.（正确，人还在北京） 两者均为现在完成时固定搭配 专项练习1——用所给动词正确形式填空 1.__________ you __________ (watch) the online art show before? 2.I _____________ (not finish) my homework yet. I need five more minutes. 3.She __________ (call) me an hour ago, but I wasn't at home. 4.My brother __________ (play) this online game many times. It's fun. 5.They __________ (visit) the Digital Palace Museum last Sunday. Have watched haven't finished called has played visited Practice: Finish Part B on page 42 B Some students are talking about online tours.Complete their sentences with thecorrect forms of the words in brackets. 1 Simon:Last month,I__ ______(introduce)some online museums to myfriend Neil in the UK.He_______ (visit)three of the museums so far. 2 Amy: I_____ (collect)two pages of information from the website ofthe Water Cube so far. My sister Shirley_________ (sign)up for a swimming trainingcourse on its website yesterday. 3 Kitty: I_______ (visit)Shanghai Ballet online last Saturday.They___________(put)a list of different shows on the websiterecently. 4 Millie: I______ (visit)Digital Dunhuang three times.My brother Andy_______ (not visit)it yet. 5 Daniel:I________(write)a report about online tours yesterday.I_________(send)the report to Mr Wu already. introduced has visited have collected signed visited have put have visited hasn’t visited wrote have sent Practice Translate into Chinese 1. 他于去年9月去了工厂。 2. 他自去年9月起便在这家工厂工作。 He went to the factory last September. He has worked at the factory since last September. 一、用所给动词的适当形式填空（考察时态、固定搭配） Liverpool _______ (be) close to the west coast of England and _______ (be) famous for the Beatles. People __________ (count) down to midnight at Times Square every New Year's Eve—it __________ (be) a tradition since 1907. The music scene in Liverpool __________ (remain) second to none, and you __________ (can) enjoy live music there every day. A trip to New York __________ (not be) complete without a walk through Central Park, which __________ (have) lakes and green grass. London __________ (have) something for everyone, and many tourists __________ (watch) the Changing of the Guard every year. The grammar we have learned is is count has been remains can isn't has has watch Read and work out What do the sentences tell us? It tells us what happened in the past and the action is finished. It tells us the result of an action which happened in the past. 谈论发生在过去动作的结果。 描述过去发生的事情，状态已结束。 单项选择 I really like taking a boat on the Xuanwu Lake, so I ______ it again last weekend. A. visit　　 B. visited　　C. will visit　　 D. have visited 2.-Shirley, shall we watch the film Born to Fly this weekend? -I'm afraid not. I ____ it twice and the story of Chinese pilots really touched me. A. watch　　 B. watched　C. was watching　　 D. have watched 3.-My cousin Linda has gone out.-Oh, has she? What time ______ she ______? A. has; gone　　B. will; go　　C. did; go　　 D. is; going The grammar we have learned B D C 专项练习1——用所给动词正确形式填空 6.So far, we ____________ (learn) about ten online museums. 7.He __________ (introduce) this website to me yesterday afternoon. 8.__________ your father __________ (read) the travel plan yet? 9.I ______________ (collect) many museum pictures since last month. 10.They __________ (not go) to the cinema last night. have learned introduced Has read have collected didn't go 1. He studied at the school five years ago. 2. He has already finished his studies at this school. Practice Translate into English 他五年前曾在这所学校就读。 他已在这所学校完成了学业。 根据所给中文意思，用英语完成下列各句 1. 我想把这次旅行的照片分享给我的朋友们。 I want to________ the photos of this trip ________my friends. 2.现在很多人通过互联网购物、学习和工作。 Now many people do shopping, study and work________ ________ ________. 3.多亏了老师的耐心帮助，我终于弄懂了这道难题。 ________ ________ the teacher's patient help, I finally understood this difficult problem. The grammar we have learned share with through the Internet Thanks to 专项练习2——时间状语填空（for/since/ago/yesterday/不填） 1.We have lived in this city __________ 2018. 2.He bought this computer three months __________. 3.I saw the online exhibition __________. 4.She has studied English __________ five years. 5.They have known each other __________ they were in primary school. since ago yesterday for since Read and work out What do the sentences tell us? It tells us what happened in the past. It tells us how many times the action has happened till now. 用一般过去时描述过去发生的事情。 用现在完成时描述到目前为止一个动作发生了多少次。 Work out the rules simple past tense present perfect tense 一般过去时 描述过去发生的事情 现在完成时 始于过去并持续到现在的动作 动作的结果 到目前为止一个动作发生了多少次 Assessment Self-assessment I can learn the usages of the simple past and present perfect tenses and distinguish them. I can learn to use the two tenses to complete the blanks. I can use the two tenses to describe an online activity. 基础：订正练习 B 的所有句子，补充含 “last...（一般过去时）” 和 “so far（现在完成时）” 的句子。 Homework 提升：用一般过去时和现在完成时各写 3 句话，描述自己的一次线上活动，需包含至少 2 个标志词（如 “yesterday、already”）。 拓展：调查 2 位同学的线上文化体验，用一般过去时和现在完成时写一篇 5-8 句的小报告。 $