Unit 4 Adversity and Courage Discover Useful Structure 现在完成进行时(基于单元主题语境) 课件-2025-2026学年高二英语人教版选择性必修第三册

该高中英语课件聚焦现在完成进行时，以“Endurance南极探险”情境导入，通过Engage-Explore-Explain-Elaborate-Evaluate五步引导学生从课文发现句型，到分析结构、区分时态，再到改写句子、撰写生存日记，构建“感知-理解-应用”的学习支架。 其亮点在于融合主题“Adversity and Courage”，以探险生存任务驱动语法学习，如写日记描述生存行动提升语言能力，对比现在完成时与进行时锻炼思维品质，渗透勇气精神培育文化意识。教师可借助清晰环节与实例活动高效教学，学生能在真实情境中掌握语法并涵养品格。

Unit 4 Adversity and Courage Discovering Useful Structures: The Present Perfect Continuous Tense 1.7.2013 大家好，今天我们将一起踏上一段非凡的旅程，回到一百多年前的南极。我们将通过一个伟大的故事，学习一个非常有用的语法结构。让我们一起探索“逆境与勇气”这个单元，并揭开现在完成进行时的神秘面纱。 ‹#› Teaching Objectives Students are able to: 1. Master the structure and basic usages of the present perfect continuous tense. 2. Distinguish it from the present perfect tense and use them properly in sentences. 3. Learn to describe experiences of overcoming difficulties and cultivate brave spirits. The Challenge The Endurance Expedition Imagine you are on the 'Endurance'. The ship is stuck fast in the Antarctic pack ice, slowly being crushed by its immense pressure. It's cold, dark, isolated, and dangerous. What have you been doing to survive? Engage Explore Explain Elaborate Evaluate 1.7.2013 请看这张照片，这就是著名的“坚忍号”。它被困在了南极的冰原之中。想象一下，如果你是船上的一名船员，在过去的几个月里，为了生存，你一直在做什么？你睡得好吗？你想念家乡吗？今天，我们就将用一个特殊的时态来描述他们不可思议的挣扎与求生之旅。 ‹#› Discover the Structure Find the sentence structure in the text! Read the diary entries in Page 38&39，and find sentences that describe actions that started in the past and are still happening. have / has + been + doing Engage Explore Explain Elaborate Evaluate 1.7.2013 现在，让我们回到课文“A SUCCESSFUL FAILURE”。请大家快速阅读这几篇日记，找出使用现在完成进行时的句子。注意观察它们的结构，看看这些动作有什么共同之处。 ‹#› We have been struggling for days, but things on Elephant Island are going from bad to worse. We are now camped on the ice and we have been managing to survive, but spring is coming, and the ice will soon begin to melt. This is the adventure that I have been dreaming of. What did you find? Engage Explore Explain Elaborate Evaluate 1.This is the adventure that I have been dreaming of. 2.We have been struggling for days, but things on Elephant Island are going from bad to worse. 3.We are now camped on the ice and we have been managing to survive, but spring is coming, and the ice will soon begin to melt. have/has been doing + + 现在完成 进行 现在完成进行时 What's the pattern? Engage Explore Explain Elaborate Evaluate 肯定句： 否定句： 一般疑问句： 特殊疑问句： 主语 + have/has + been + 现在分词... 主语 + have/has + not + been + 现在分词... Have/Has + 主语 + been + 现在分词...? 疑问代词/ 疑问副词 + have/has +（主语 +）been + 现在分词...? The Structure of the Present Perfect Continuous Engage Elaborate Evaluate Explore Explain 1. We have been struggling for days, but things on Elephant Island are going from bad to worse. 现在完成进行时表示动作开始于过去，并__________到现在，动作可能　　　　　　。 Present Past Future 现在完成进行时的功能 持续 继续 Engage Elaborate Evaluate Explore Explain 2. For months, the crew has been trying to dig their ship out of the ice whenever the weather permits. 3. Shackleton has always been inspiring his men with his calmness and determination, even in the face of despair. 表示动作并不是一直不停地进行，而是在断断续续地_________。 带有___________，使语言表达更加生动。 重复 感情色彩 Engage Explore Explain Elaborate Evaluate 经常与现在完成进行时连用的时间状语 for +时间段/since+时间点 this week/this month all day/all the morning/all the time recently/ lately; these days; up to now; till now; so far；over/in the past five years, 等表示一段时间的时间状语 Engage Explore Explain Elaborate Evaluate past future now did do have done past future now did do have been doing do 现在完成时 现在完成进行时 Engage Explore Explain Elaborate Evaluate 区别 Group1： Shackleton has thought of a plan to reach the whaling station. Shackleton has been thinking of a plan to rescue his men. Group2： Frank Wild has fixed the sledge. Frank Wild has been fixing the sledge. 时态 现在完成时 强调完成和影响/结果 通常只陈述事实 现在完成进行时 强调未完成和动作的持续 含感情色彩 Engage Explore Explain Elaborate Evaluate They dig the ship out of the ice for days. ➜ They have been digging the ship out of the ice for days. He watches the sea for a rescue ship every morning. ➜ He has been watching the sea for a rescue ship every morning. She repairs the torn sails for hours. ➜ She has been repairing the torn sails for hours. We hope for a miracle since the ship sank. ➜ We have been hoping for a miracle since the ship sank. Activity 1 - Rewrite the sentences Describe the Struggle Engage Explore Explain Elaborate Evaluate Activity 2 - Be a Crew Member! Write a short diary entry Imagine you are stranded on Elephant Island with the crew. What have you been doing to survive day-to-day? Write 3-4 sentences. 💡 Ideas to include: Building shelters to stay warm Hunting for seals for food Watching the horizon for a rescue ship Feeling hopeful for survival Engage Explore Explain Elaborate Evaluate 1.7.2013 接下来，让我们进行一个角色扮演。想象你是象岛上的一名船员，写一篇简短的日记，描述你和你的同伴们一直在做什么来求生。你可以写你们在搭建避难所，捕猎海豹，或者守望救援船。请使用现在完成进行时。 ‹#› We have been hunting for seals and penguins every day to get enough food. We also have been building stone walls to protect our camp from the strong winds. Every morning, one of us has been climbing the highest point on the island to watch for a rescue ship. The rest of us have been collecting driftwood to keep the fire going. We have been working from dawn till dusk, trying to find fresh water. Our hands have been hurting because we have been using them to dig in the frozen ground. To stay positive, we have been sharing our memories of home and making up stories. We have been supporting each other, knowing that teamwork is the only way we will survive. Engage Explore Explain Elaborate Evaluate Share Your Diary Let's hear from the crew! Engage Explore Explain Elaborate Evaluate 1.7.2013 好了，有没有同学愿意分享一下你的船员日记？让我们听听来自“坚忍号”船员们的声音。 ‹#› Discussion A Successful Failure? Why is Shackleton's expedition called "A Successful Failure"? Use the Present Perfect Continuous tense to explain. What have they been doing that makes it a success? Engage Explore Explain Elaborate Evaluate 1.7.2013 现在我们来进行最后的讨论。为什么说沙克尔顿的探险是“一次成功的失败”？请用我们今天学的现在完成进行时来解释你的观点。他们一直在做什么，使得这次看似失败的探险成为了一次成功？ ‹#› Homework Practice Makes Perfect 01. Review the Rules Go back and carefully review the grammar rules of the Present Perfect Continuous Tense we discussed in class today. Pay attention to its structure and usage for actions that started in the past and continue now. 02. Creative Writing Write a short paragraph (approx. 80 words) about a time you have been working hard to achieve a personal goal (e.g., learning a skill, training for a sport, or studying for an exam). Be specific! Engage Explore Explain Elaborate Evaluate 1.7.2013 今天的作业是：第一，复习今天所学的语法规则。第二，写一小段文字，大约80词，描述一次你为了实现个人目标而努力奋斗的经历。请务必使用现在完成进行时。 ‹#› “Great works are performed not by strength, but by perseverance.” — Samuel Johnson Thank You! 1.7.2013 最后，送给大家一句话：“伟大的作品不是靠力量，而是靠毅力来完成的。” 希望今天的课能让大家有所收获。谢谢大家！ ‹#› $