Unit 3 Period 2 Grammar and usage（教学设计）英语译林版2020选择性必修第二册

Unit 3 Fit for life Period 2 Grammar and usage教学设计 教学基本信息 单元名称 选择性必修第二册Unit 3 Fit for life 学科 英语 学段 高中 年级 高二第一学期 主要教材 书名：普通高中教科书·英语选择性必修第二册 出版社：译林出版社 出版日期：2021年6月 课时安排 2课时(80min) 课型 语法课 教学设计理念 本节课以 “健康生活” 为主题语境，秉持学生主体理念，通过机器人肢体、医疗技术发展等真实情境，结合多媒体资源（如视频、图片）与互动活动，引导学生在观察、分析、实践中掌握现在完成进行时。注重语法与语用的结合，培养学生在健康科技、医疗进展等相关语境中准确运用语法的能力，提升逻辑思维与跨文化健康素养。 教材分析 【What】借助健康科技领域的动作延续性（如机器人肢体测试、医疗研究进程、康复训练过程），帮助学生理解现在完成进行时在表达 “从过去开始持续到现在的动作”“刚完成但与现在相关的动作”“重复发生的动作” 及 “强烈情感色彩” 中的功能。 【Why】通过健康科技情境（如残障人士使用机器人肢体的经历、科学家对疾病的研究），让学生理解该时态在描述 “持续动作”“与现在关联的过去动作” 时的意义，使其意识到语法学习与现实生活（如医疗进步、健康管理）的紧密联系。 【How】通过时间线梳理动作延续性、语境对比（现在完成时 vs 现在完成进行时）和健康场景任务（如描述康复过程、医疗研究），引导学生归纳语法规则，在写作（如健康日记）、口语（如科技报道）中灵活运用。 学情分析 1.What I know 学生已掌握一般现在时、一般过去时、现在完成时等基础时态，能描述简单的动作和状态，但对现在完成进行时的构成、用法（尤其是与现在完成时的区别）存在困惑，如难以区分 “动作持续” 与 “动作完成” 的语境。 2.What I want to know 学生希望明确现在完成进行时的使用场景，如 “一直在做某事（持续到现在）” 与 “已经做完某事（强调结果）” 的表达差异，以及如何在健康、科技相关话题中准确运用。 3. What I learned 学完本课后，学生能识别并运用现在完成进行时描述持续或与现在相关的过去动作，区分其与现在完成时的用法，在写作和口语中准确表达健康事件、科技进展的时间逻辑。 教学目标 1.语言能力 能识别现在完成进行时的形式（have/has been doing）；能在健康科技语境中运用该时态描述持续动作（如 “科学家一直在研究机器人肢体”）、刚完成的动作（如 “她一直在康复训练，现在能独立行走了”）等。 2.学习能力 借助观察、分析、比较例句等方式，自主归纳现在完成进行时的语法规则，形成 “语境判断 — 规则应用” 的学习策略，提升解决类似语法问题的能力。 3.文化意识 依托机器人肢体、医疗技术等主题语境，了解健康科技的发展现状，培养对跨文化健康理念（如 “科技赋能生活”）的理解能力。 4.思维品质 学生能够现在完成进行时应用于新情境。 教学重难点 教学重点 引导学生理解现在完成进行时的构成（have/has been doing）和用法，包括其表示 “从过去持续到现在的动作”“刚完成且与现在相关的动作”“重复动作” 及 “情感色彩”，并掌握与现在完成时的核心区别。 教学难点 指导学生在复杂语境中（如同时涉及持续动作和完成结果）恰当运用现在完成进行时，避免混淆其与现在完成时的用法。 教学资源 课件PPT，黑板、白板。 教学活动设计 教学过程 活动形式及步骤 活动意图 时间 学习理解 Activity 1 Lead in Is there anything special about this man? With the development of technology, a new type of limb has appeared. That is the robotic limb. Let’s watch a video about it. ●通过视觉和听觉刺激激活学生对健康科技的背景知识，自然导入 “持续动作” 相关话题，为语法学习铺垫语境。 5 min Activity 2 Exploring the rules 1. Read the personal account on page 34 and fill in the following table. Before having the new robotic hand The girl began to (1)_____ after losing her right hand in a car accident two years ago. The old artificial hand couldn’t help her because (2)________. With the new robotic hand The girl can (3)_________ and hold on to small things. The new robotic hand is capable of (4)__________. The new robotic hand looks very lifelike with (5)______. Over the past three months The girl has rediscovered old hobbies. The girl has become more (6)___. 答案：(1) withdraw into herself (2) she could not do simple things like getting dressed (3) move her individual fingers (4) feeling varying degrees of pressure (5) special rubber used on the outside (6) confident and outgoing Read the passage again and underline the sentences using the present perfect continuous tense. 答案：①Scientists have been making great progress in robotic technology in recent years, … ②Over the past three months I have been testing out the limits of what I can do with my new hand, … ③…, I have been cooking for my family again since I got my new hand. ●通过文本分析，引导学生自主发现现在完成进行时的使用场景（描述持续的科技进展、个人体验），培养观察能力。 15 min Activity 3 Working out the rules 1.Main rules We use the present perfect continuous tense to talk about an action that started in the past and is still continuing now, or an action that has just finished but is still connected with (1)______________(the past/the present/the future) in some way. The verb form of the present perfect continuous tense is “ (2)_______________ ”. 答案：(1) the present (2) have/has been doing 2.Supplement 现在完成进行时的用法 ①现在完成进行时表示动作从过去某一时间开始一直持续到现在，这个动作可能刚终止，也可能还在进行。常与延续性动词连用，并常与all the time, this week, this month, all night, all morning, recently, these few days等状语以及since或for引导的时间状语（从句）连用。 I have been waiting for Deng Zhengzhou for half an hour, but he hasn’t turned up. Xian Ting has been studying hard since the new term began. He is tired, he has been working all day. ②表示说话之前刚刚结束的动作，并且动作不再继续，有时会指出结果。 Her eyes are red. It’s obvious that she has been crying for a long time. — I am sorry I have kept you waiting so long. — It is all right. I have been reading the newspapers. ③表示动作从过去到现在这一段时间内重复发生。并不是一直不停地进行，而是在断断续续地重复。 Tom has been phoning Alice every night for several months. I have been visiting some cities in China this month. ④表示某种强烈的感情色彩,如：赞赏、批评、愤怒等。 Recently Mary has been doing sports regularly. I have been waiting for you for two hours. You have been making progress and I am proud of you! 现在完成进行时和现在进行时的区别 ①现在完成时通常表示动作已完成，而现在完成进行时却不一定如此。 The car is going again now. Tom has repaired it. Tom’s hands are very dirty. He has been repairing the car. ②现在完成进行时与所有进行时态一样带有感情色彩，可使表达显得生动，而现在完成时往往只表明一个事实、一种影响或结果，不带感情色彩。 Henry has been doing his work orderly. Henry has done his work orderly. ③有些表示状态、感情、感觉的动词如：have, exist, like, hear, know, sound等，不能用于现在完成进行时，但可用于现在完成时。 They have known each other since 1970. John has loved Mary since ten years ago. ④某些不具延续性含义的动词，如come, go, marry, die, finish，leave等，不适用于现在完成进行时，但可用于现在完成时。 We have finished the homework.✓ We have been finishing the homework.✘ ●帮助学生构建现在完成进行时的规则体系，通过对比深化对时态逻辑的理解。 15 min Activity 4 Applying the rules 1. Complete the sentences with the correct forms of the verbs in the brackets. ①I _______(reflect) on the article I read about ancient medicine all day. ②I _______(wait) for two hours to see the doctor but it is still not my turn yet. ③My mother ______(write) a report on the new treatment all morning. She hopes to finish it tonight. ④The company ______(make) herbal medicines for more than 100 years. ⑤Scientists ______(do) research on the disease since it was first discovered in the early 20th century. 答案：①have been reflecting ②have been waiting ③has been writing ④has been making ⑤have been doing 2. Below is an article about robotic limbs. Circle the correct expressions to complete it. It (1) is being estimated/has been estimated that over 30 million people worldwide have lost arms or legs, and many of them fail to get the help that they need. For some time, they (2) are hoping for/have been hoping for better-quality artificial limbs. Fortunately, one exciting new advance could help these physically disabled people lead a normal life again: robotic limbs. Over the last few years, scientists (3) have been developing/will be developing new kinds of artificial limbs to help people overcome their disabilities. Robotic limbs can do much more than conventional artificial limbs. Some of the earliest artificial limbs were made of wood and leather, and until recently, artificial limbs (4) have only served/have only been serving basic functions. With the advancement in robotic technology, artificial limbs can now perform much more complex tasks and come closer to real human limbs. Not only can they make a much wider range of movements, but they can also be controlled directly by the brain and feed sensory information back into it. David Jones is one of a team of scientists devoted to making even better robotic limbs. “We (5) have done/have been doing everything we can to advance this technology and we will not take out a patent on it,” said David. “Hopefully, more and more people in need of robotic limbs will be equipped with them and enjoy a higher quality of life.” 答案：(1) has been estimated (2) have been hoping for (3) have been developing (4) have only served/ (5) have been doing A student is interviewing David Jones about the research his team has been doing. In pairs, role-play the interview using the present perfect continuous tense. The beginning has been given. Student: What have you been doing, Dr Jones? David Jones: We have been developing ... ●通过分层练习（单句 — 短文 — 口语），让学生在不同语境中应用语法，巩固知识。 15 min 应用实践 Activity 5 Language points 详解文章中的重点单词、短语和句型，完成巩固练习。 根据汉语提示填空 1. 据说这家公司有能力处理这么大的订单。 It is said that the company _ ______ __ handling an order that large. 2. 所有校园建筑的楼层都配备了火灾报警系统。 The floors of all campus buildings ___ _______ ___ the fire alarm system. 3. 互联网为农村地区的人们提供了过上好日子的新机会。 The Internet _ _______ __ new opportunities for people in rural areas to earn a good living. 4. 如果我们坚持下去，我们会取得很大的进步。 If we keep on, we will _____ ____ _______. 5. 她抱有她失踪的猫有一天会回家的希望。 She ___ __ __ the hope that her missing cat would return home someday. 6. 所有校园建筑的楼层都配备了火灾报警系统。 When you are angry at what is going on, you can _______ ___ _______. 7. 我们需要各种信息过正常的生活。 We need various information to live a normal life ___ _ ______ ___. 8. 我们感谢你所做的一切。 We ___ ______ __ all that you have done. 答案：1. is capable of 2. are equipped with 3. is opening up 4. make great progress 5. held on to 6. withdraw into yourself 7. lead a normal life 8. are grateful for ●通过词汇和短语的学习，丰富学生的语言表达，提升语言运用能力。 20min Activity 6 Summary 以提炼重点的形式，总结本节语法课的要点。 ●梳理重点，强化学生对语法规则的记忆。 3 min Activity 7 Assessment 展示评价表，供学生对自己本节课中的表现及所学情况进行自我评价。 ●通过自我评价，帮助学生了解学习效果，提升主动性。 3 min 迁移创新 作业内容 作业设计意图 4 min 本节课作业二选一，为分层作业，难度有所区别。基础一般的同学可以选择作业前两项，基础较好的同学可以选择后两项。 一、用所给词的适当形式填空 1. Since last month, George, along with some of his former classmates, _____________ desire) to have a 20-year gathering during this summer holiday. 2. The number of visitors __________(rise) steadily since the reopening, despite a sharp decline compared to normal years. 3. A recent study has found that the number of smokers ______________(increase) sharply over the past five years. 4. We _________(try) to make our environment more beautiful since the time humankind started gardening. 5. Today I ___________(photograph) a crocodile swimming close to our boat, the Kimberley Quest, all day. 6. Mr. Smith ____________(overwork) these days. I think he should take a holiday before he burns out. 7. Since arriving in space, the WISE telescope ______________ (circle) the Earth, held by gravity in a polar orbit (this means it crosses close to the north and south poles with each lap. 8. Excuse me, Madam. Ellen, a journalist from the Daily Mail _______________ (phone) all day. Could you speak to him now? 答案：1.has been desiring 2. has been rising 3. has been increasing 4. have been trying 5. have been photographing 6. has been overworking 7. has been circling 8. has been phoning 二、根据汉语提示，完成下列句子 1. 我一直期待着去英国旅行，我的梦想将在下个月实现。 I ____________to travel to the UK, and my dream will come true next month. 2. 桑迪已经教学16年，她探索出了一些有效的教学方法。 Sandy ________________ for sixteen years, and has explored some effective teaching methods. 3. 自六月以来，玛丽每天晚上都去上写作课。 Mary ______________ to writing classes every night since June. 4. 你学习英语多久了？ How long _____you ____________English? 5 这几天以来, 我一直感到不太舒服。 I _________ unwell these days. 答案：1. have been expecting 2. has been teaching 3. have been going 4. have been learning 5. have been feeling 三、实战高考 1. A retired engineer, 76-year-old Wilson ______________(offer) free rides to college students for the past eight years. 2. In the past several weeks, many cities in Northern China _______________ (suffer) from heavy fogs and severe cold 3. Now that she is out of job, Lucy _________________(consider) going back to school, but she hasn’t decided yet. 4. I am sure you will do better in the exam because you __________(study) hard this year. 5. Michael ______________(work) very hard on his graduation thesis, and he thinks he’ll have it finished by Friday 答案：1. has been offering 2.have been suffering 3. has been considering 4. have been studying 5. has been working ●分层作业满足不同学生需求，强化语法在真实语境中的应用。 板书设计 Unit 3 Period 2 Grammar and Usage Present perfect continuous tense 1. 构成：主语 + have/has been + doing 2. 用法： - 持续到现在的动作（e.g. Scientists have been researching...） - 刚完成且与现在相关（e.g. She has been crying.） - 重复动作（e.g. He has been phoning...） - 情感色彩（e.g. I’ve been waiting...） 3. 时间状语：all day, since 2020, for 5 years, recently... 4. 与现在完成时的区别： - 强调过程（进行时）vs 强调结果（完成时） 教学反思 优点： 以健康科技（机器人肢体、医疗研究）为载体，语法学习与生活实际结合紧密，学生参与度高；活动设计从感知（读文本）到应用（写、说）层层递进，符合 “输入 — 内化 — 输出” 的语言学习规律。 缺点： 部分学生在 “持续动作” 与 “完成结果” 的语境中仍易混淆两种时态；口语角色扮演环节时间较紧，部分学生展示机会不足。 改进： 增加 “时态转换” 专项练习（如将现在完成时句子改为现在完成进行时），强化语境辨析；增设 “健康科技新闻播报” 小组竞赛，增加实战运用机会。 1 / 11 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$