Unit5 grammar学案2026-2027学年沪教版八年级英语上册

U5 语法探究学案 2026—2027学年沪教版八年级英语上册 Going on an exchange trip 班级 __________ 姓名 __________ 日期 __________ 教材依据：第73—74页 建议课时：40分钟。 本课任务：为交换生完成一份进展记录，说明做过什么、还没做什么以及某种状态持续了多久。 学习重点：have或has加过去分词；经历、当前结果与持续状态；六个常见时间词。 一 观察 同一段经历有不同的时间焦点 8分钟 Read the three pairs. Underline the verb forms. Circle the words that help you understand the time. ① I have learnt how to play Go. I can play a simple game now. ② Wei taught me the rules yesterday. ③ Sarah has been in Beijing for a week. She is still there. ④ She arrived in Beijing last Monday. ⑤ Eric has not tried tai chi yet. He hopes to try it tomorrow. ⑥ He visited a museum last Saturday. 1. Which sentences connect past events or states with now? __________ 2. Which sentences locate events at a finished past time? __________ Complete the pattern: I / you / we / they + ______ + past participle; he / she / it + ______ + past participle. Negative: have / has + ______ + past participle. Question: ______ / ______ + subject + past participle …? 二 给动词办一张变化卡 4分钟 Verb Past simple Past participle visit visited ________ try tried ________ be was / were ________ see saw ________ write wrote ________ learn learnt / learned ________ Notice: a past participle is not always the same as the past simple form. 用一句话说明：I have saw… 为什么不成立？________________________ 三 六个时间词各自提供什么信息 10分钟 Read the mini-conversations and fill in the rule notes below. A: Have you ever tried tai chi? B: No, I have never tried it. A: Have you finished your picture yet? B: No, I haven’t finished it yet, but Sarah has already finished hers. A: How long has Sarah stayed here? B: She has stayed here since Monday / for three days. Meaning or use Word Experience at any time up to now ________ No such experience up to now ________ Completed before now in this context ________ Still not completed or asking whether completed ________ A starting point in time ________ A length of time ________ 1. Choose since or for: ______ two weeks; ______ 8 October; ______ last Friday; ______ an hour. 2. Fill each gap with the word that best fits the response. a. “Any experience at all?” “Have you ______ visited Beijing?” b. “Not once in my life.” “I have ______ visited Beijing.” c. “It is finished.” “I have ______ packed my bag.” d. “I am still working on it.” “I haven’t finished my report ______.” 四 比较时间焦点 6分钟 Choose the correct form. Explain ONE choice by referring to the time or meaning. 1. I (have visited / visited) the museum yesterday. 2. Look at my new picture! I (have finished / finish) it. 3. Sarah (has lived / lived) with this family since Monday and she is still there. 4. Eric (has written / wrote) two emails so far. 5. When (did you arrive / have you arrived) in Beijing? — Last Sunday. My explanation for item ____: ____________________________________ ________________________________________________________________________________ 提醒：时间词是线索，表达意图更关键。先想“我在讲某次过去事件，还是在报告到现在的经历、结果或状态？” 五 修正消息 再汇报进展 10分钟 A. Each message has ONE error. Correct it without changing the intended meaning. 1. Eric have learnt three useful phrases. → __________________________________________________________ 2. I haven’t finished my photo report already. → __________________________________________________________ 3. She has stayed here since two weeks. → __________________________________________________________ 4. I have seen the Great Wall last Sunday. → __________________________________________________________ B. Today is Friday, 18 October, in this classroom scenario. Use the record to write THREE sentences. Dates are part of the exercise. Record Status now Arrived on Monday, 14 October Still in Beijing Finished the welcome poster Done Make the photo report Not done yet Include since, already and yet, each at least once. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ C. Ask ONE question about a partner’s experience. A local experience is fine. Have you ever ________________________________________________? Answer: ______________________________________________________ 六 离堂解释 2分钟 Choose and explain: “I have arrived here for four days” / “I have been here for four days.” ________________________________________________________________________________ ________________________________________________________________________________ 课后选做：用两句话说明差别。Wei has been to London. / Wei has gone to London. 哪一句表示去过且已回来？哪一句表示去了尚未回来？ 自查：我能选择have或has □ 我能写过去分词 □ 我能解释时间焦点 □ 参考答案与规则说明 一 1. ①③⑤；2. ②④⑥。构成：have；has；not；Have / Has。①强调学会后的当前能力；③强调持续到现在的状态；⑤说明到现在尚未发生。②④⑥定位于已经结束的过去时间。 二 visited；tried；been；seen；written；learnt / learned。have后需要过去分词seen，不能用过去式saw。 三 表格 ever；never；already；yet；since；for。 1. for；since；since；for。2. a. ever；b. never；c. already；d. yet。 本单元基本用法：already常用于肯定句，yet常用于疑问句及否定句句末；ever常用于询问经历，never本身含否定意义。它们并非所有语境中的唯一用法，不宜把入门归纳当作绝对禁令。 四 1. visited；2. have finished；3. has lived；4. has written；5. did you arrive。第1、5题定位具体过去事件；第2题强调已经完成的结果；第3题持续到现在；第4题so far把统计范围延伸至现在。 五A 1. Eric has learnt three useful phrases. 2. I haven’t finished my photo report yet. 3. She has stayed here for two weeks. 4. I saw the Great Wall last Sunday. 五B I have been in Beijing since Monday / 14 October. I have already finished the welcome poster. I haven’t made the photo report yet. 可用相应的第三人称叙述，但须保持人称一致；第1句也可写I have stayed in Beijing since Monday。 五C 示例：Have you ever visited a local museum? — Yes, I have. / No, I haven’t. 若继续追问When did you go?，回答具体过去时间时用一般过去时。 六 I have been here for four days. “到达”表示一个瞬间发生的动作，不能直接用have arrived加for four days表示持续停留；需改为have been here。可对照：I arrived here four days ago. / I have been here since Monday. 课后选做 has been to London：去过伦敦，通常表示已经回来；has gone to London：去了伦敦，目前不在说话处，可在途中或已到达。该辨析作为拓展，不挤占本课核心练习时间。 U5 语法 · 学科网（北京）股份有限公司 $