资源简介 现在完成时探究式复习学案课时时长: 40分钟 | 设计者:Jim一、 学习目标 (Learning Objectives)归纳总结: 通过观察句子,自主总结现在完成时的基本结构与核心用法。深度辨析: 探究现在完成时与一般过去时在“时间点”与“影响”上的本质区别。迁移应用: 能在广州城市生活语境中,准确使用该时态描述经历与成就。二、 探究过程 (Inquiry Process)Step 1: 情境导入与观察 (Observation - 5 mins)情境: 假如你正在带外国朋友游览广州。请观察以下两组对话:Group A:A: I have visited the Canton Tower twice. It's magnificent!B: Really I have never been there.Group B:A: I visited the Canton Tower last Saturday.B: I went there with my parents in 2023.【探究思考 1】Group A 强调的是:____________________(A. 动作发生的具体时间 / B. 过去的经历对现在的影响)。Group B 强调的是:____________________(A. 动作发生的具体时间 / B. 过去的经历对现在的影响)。Step 2: 结构归纳与发现 (Discovery - 8 mins)请根据你的观察,补全现在完成时的“思维导图”:基本结构: have/has + \text{done (过去分词)核心含义:用法 I (影响): 过去发生的动作对现在产生的影响。Example: I have lost my key. (结果:我现在进不了门)用法 II (持续): 过去开始的动作一直持续到现在。Marker words: for + {时间段}$, $since + {时间点/句子}.【避坑指南】 广州中考常考点:have been to (去过已回) vs. have gone to (去了未归)延续性动词转换:buy → have had; die → have been dead.Step 3: 深度辨析 - 现在完成时 vs. 一般过去时 (Contrast - 12 mins)这是本课的核心难点。请完成下表的对比探究:维度 现在完成时 一般过去时关注点 侧重现在(结果、经验) 侧重过去(发生的时刻)时间状语 模糊/不确定 (already, yet, ever, before) 明确 (yesterday, in 2010, ago)与现在的联系 藕断丝连(对现在有影响) 彻底断交(纯粹陈述过去)【挑战练习】判断并改错:I have finished my homework yesterday. ( ) ____________________My father has lived in Guangzhou for 20 years. ( ) ____________________Step 4: 语境实践 (Practice - 10 mins)任务:广州印象 (Impressions of Guangzhou)请根据提示,用所给动词的正确形式补全短文。Guangzhou ________ (change) a lot in the past few years. Many new high-rise buildings ________ (appear) in Zhujiang New Town. My cousin, Tom, ________ (live) here since he graduated from university. He ________ (visit) many places of interest already. However, he ________ (not go) to the Nanyue King Museum yet. Last weekend, he ________ (decide) to go there, but it was too crowded.Step 5: 总结与反思 (Summary - 5 mins)请用一句话概括现在完成时的精髓:“立足过去,着眼现在。”三、 课后探究作业 (Homework)采访任务: 采访一位长辈关于广州的变化,使用 How long have you lived here 或 What changes have you seen 。 展开更多...... 收起↑ 资源预览