Unit5 Period1 Starting out & Understanding ideas（表格式教学设计）英语外研版选择性必修第一册

该高中英语教学设计聚焦达尔文科学探索历程及进化论，通过视频“Charles Darwin and Theory of Evolution”与问题链导入，激活学生生物课基础认知，梳理“观察—质疑—求证—创新”科学思维链，搭建从背景知识到语篇理解的学习支架。 资料以三层递进活动（学习理解、应用实践、迁移创新）为特色，通过时间线梳理、段落细节分析培养思维品质，分层作业（复述历程/拓展未来进化写作）发展语言能力，自评互评结合形成性评价，助力学生提升综合运用能力，帮助教师因材施教，高效落实单元主题教学。

Unit 5 Revealing nature Period 1 Starting out & Understanding ideas教学设计 教学基本信息 单元名称 选择性必修第一册Unit 5 Revealing nature 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·英语选择性必修第一册 出版社：外语教学与研究出版社 出版日期：2020年6月 课时安排 2课时(80min) 课型 阅读课 教学设计理念 1.基于英语学习活动观，以"人与自然"主题语境为依托，围绕达尔文发现进化论的科学探索历程，设计学习理解、应用实践、迁移创新三层递进的教学活动，引导学生在语境中习得语言知识、发展阅读策略、涵养科学精神。 2.践行"以学生为中心"的教学理念，通过问题链驱动、时间线梳理、对比分析等策略，帮助学生从表层信息提取走向深层意义探究，培养批判性思维和科学探究意识。 3.融合形成性评价与终结性评价，利用自评、互评与教师点评相结合的方式，关注学生在语言运用、思维品质和文化意识等维度的综合发展。 教材分析 【What】本语篇属于外研版选择性必修第一册 Unit 5 "Revealing nature" 的 Starting out & Understanding ideas 板块。语篇标题为 "A Journey of Discovery"，是一篇按时间顺序展开的记叙文（narrative in time order），讲述了达尔文搭乘"小猎犬号"（the Beagle）进行环球航行，从收集标本、观察物种差异、产生进化假说到最终提出进化论的科学发现历程。语篇结构为：Para.1（背景引入）→ Para.2（航行途中收集标本）→ Para.3（质疑旧观点，产生新想法）→ Para.4-5（加拉帕戈斯群岛观察雀鸟，寻找证据）→ Para.6（提出进化论并出版《物种起源》）。 【Why】主题层面：语篇以达尔文的科学探索之旅为载体，传递"观察—质疑—求证—创新"的科学精神，引导学生理解科学发现源于好奇心与坚持不懈的探索，呼应"Revealing nature"的单元主题。 语言层面：语篇涉及自然、科学、进化等主题词汇（如 evolution, natural selection, species, finch, ancestor, sample 等），以及描述科学发现过程的动词短语和多种时态表达，为学生的语言积累提供真实语境。 思维层面：语篇展现了达尔文从观察现象到提出假说、再到寻找证据、最终形成理论的完整科学思维链，有助于培养学生的逻辑推理和批判性思维能力。 【How】语篇采用"总—分—总"的叙事结构：Para.1 以达尔文弃医从航的个人背景切入，设置悬念（父亲预言他"会令家族蒙羞"），吸引读者兴趣；Para.2-5 按时间顺序展开达尔文在航行中的经历——收集标本→质疑旧有认知→观察加拉帕戈斯雀鸟→形成进化假说；Para.6 总结达尔文发表《物种起源》并引起轰动，点明进化论的核心观点。语篇中运用了对比手法（如当时人们的信仰与达尔文的新观点形成对照）和因果逻辑链（观察→思考→求证→结论），结构清晰，逻辑严密。 学情分析 1. What I Know 词汇方面：学生已掌握基本的自然、动物相关词汇，具备一定的高中英语词汇量，但对 evolution, natural selection, finch, ancestor, species 等科学类主题词汇较为陌生。 语法方面：学生已基本掌握一般过去时、过去完成时等时态，但在长难句理解和复杂语篇中的时态运用上仍需加强。 背景知识：学生在生物课上对达尔文和进化论有初步了解，但对达尔文的具体航行经历和科学发现过程的英文表达较为陌生。 2. What I Want to Know 主题内容：达尔文在航行中经历了什么？他是如何一步步发现进化论的？ 语言知识：如何用英语描述科学发现的过程？相关主题词汇和表达有哪些？ 3. What I Learned 主题内容：通过本课学习，学生将深入理解达尔文的科学探索历程，体会"观察—质疑—求证—创新"的科学精神。 语言知识：学生将掌握 evolution, natural selection, species 等主题词汇，学会用英语描述科学发现的过程，提高记叙文阅读策略（如按时间线梳理信息、推断作者意图等）。 教学目标 1. 语言能力 学生能够掌握并运用 evolution, natural selection, species, finch, ancestor, sample 等主题词汇；能够理解语篇的主旨大意和段落结构；能够用英语复述达尔文的科学发现历程。 2. 学习能力 学生能够运用略读、寻读、推断等阅读策略，梳理语篇的时间线索和逻辑关系；能够通过自主学习和合作探究，归纳科学发现的基本路径。 3. 文化意识 学生能够理解达尔文进化论对科学和人类认知的深远影响，感悟科学探索精神的价值，增强对自然科学的兴趣和敬畏之心。 4. 思维品质 学生能够分析达尔文从观察现象到提出理论的科学思维过程，培养质疑精神和批判性思维；能够就"人类未来将如何进化"等开放性话题进行有理据的表达。 教学重难点 教学重点 1. 理解语篇 "A Journey of Discovery" 的主旨大意和结构脉络，梳理达尔文科学发现的关键时间节点和逻辑链条。 2. 掌握 evolution, natural selection, species, finch, ancestor 等主题词汇及其在语境中的运用。 教学难点 1. 理解达尔文从观察现象到提出进化论的科学思维过程，分析语篇中的因果逻辑和对比论证手法。 2. 运用所学语言和科学知识，就"人类未来进化方向"和"科学探索精神"等话题进行有深度的讨论和表达。 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 1.If a friend of you is curious about evolution, which famous person do you recommend him to know about? 答案：Charles Darwin and his Theory of Evolution. 2.Watch a video “Charles Darwin and Theory of Evolution” What’s the story behind Darwin’s discovery of Theory of Evolution? ●通过阅读和观看视频，激发学生对生物进化论的认知，激活学生的背景知识，为接下来的学习做好铺垫。 3mins Activity 2 Pre-reading 1.Look at the picture and the passage title, how do you understand the title? A Journey of Discovery 答案：generally: a trip from one place to another place literally: the process by which something gradually develops Darwin’s research work leading to his discovery of evolution 2.Read the passage and find out about the type of writing. 答案：A narrative in time order 3. Choose the main idea of the passage and give your reasons. A. Darwin’s interest in various living things made him a great naturalist. B. Darwin’s journey on the Beagle inspired his Theory of Evolution. C. Darwin went on a journey to confirm his theory that humans had evolved over time. 答案：B ●通过快速浏览文章标题，掌握生物进化论理论。 7mins Activity 3 While-reading Para. 1: Introduction The captain of the ship, the Beagle,wanted someone who would "profit by the opportunity of visiting distant countries yet little known". The person who answered the call was not the captain's first choice. It was a young man who had left medical school without completing his degree. What's more, he had recently received a letter from his father predicting that he would be "a disgrace to yourself and all your family".Despite all this, his adventures on this ship would lead to one of the most important scientific discoveries of all time. 1. What is the function of para. 1? A. To praise Charles Darwin B. To arouse readers’ interests C. To introduce Charles Darwin’s achievements D. To inform readers of Charles Darwin’s life 2. Which of the following statements about Charles Darwin is True? A. Darwin wanted to benefit from visiting little-known countries B. Darwin quitted medical school due to his lack of money C. Darwin’s father was satisfied with Darwin D. Darwin’s made a significant scientific discovery thanks to his adventures on the ship Beagle 答案：1. B 2. D Para. 2: On his journey The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments. After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist? 1. What role did the ship Beagle play in Darwin’s journey of discovery? 2. What contribute(s) to Darwin’s asking himself this question? 答案：1.The journey on Beagle gave Darwin the chance to study various living things in their natural environments. 2. 1) He had always been fascinated by plants and animals. 2) Studying the samples of the plants and animals in South America was the direct contributing factor. Para. 3: Generate ideas At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think differently. He noticed that some species of animals were very similar to each other. Maybe animals evolved as they adapted to their changing environments? It was just an idea, but enough to inspire Darwin to look for more evidence. What qualities of Darwin can you conclude from this paragraph？ 答案： daring to question instead of following blindly observant (善于观察的) innovative thinking and pioneering spirit spirit of scientific exploration Para. 4&5: Look for more evidence When the Beagle reached the Galapagos Islands in 1835, Darwin saw a variety of new species, but it was the birds that interested him the most. Darwin noticed that there was a difference between the finches on each of the islands. It seemed their beaks had evolved according to what food was available on that particular island. Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before. Over time, it had slowly evolved into many new species. And that was the answer to how new species of plants and animals came to exist: they evolved from earlier ancestors. 1. What made Darwin do this guess? 2. Which sentence of previous paragraphs does the underlined sentence echo (呼应)? 答案：1.Darwin noticed that there was a difference between the finches on each of the islands. 2. The last sentence of Para. 2: he asked himself the question: how did different species come to exist? Para. 6: Propose a theory It was a completely new idea - a theory of evolution. Darwin explained this theory in his book, On the Origin of Species. It was not published until 1859 and immediately caused a storm. Many people refused to believe that living things, including humans, had evolved from lower forms of life. They were shocked. But Darwin's scientific studies were so convincing that more and more people started to believe his theory. 答案： The Theory of Evolution: living things, including humans, had evolved from lower forms of life refused to believe people were shocked started to believe ●通过活动检验学生读课文后对课文细节的理解。 25mins Activity 4 Post-reading 1. How do you think the human species will evolve in the future? 2. What have you learnt about the spirit of scientific exploration? How can this spirit help you in your life and studies? 答案: 1.Humans will slowly adapt to modern life via natural selection. We’ll have better eyes, smarter brains and stronger heat resistance over thousands of years. 2.Be a real explorer not just in study, but also in your life! ●讨论问题通过小组讨论,分享自己对人类演进的认知，达到学以致用，提高英语表达能力。 5mins 应用实践 Activity 5 SummaryBefore his journey After his journey During his journey A journey of Discovery ●并使用思维导图帮助学生系统化地掌握文章结构。 10mins Activity 6 Exercise A father was worried about his son, 1 was sixteen years old but had no courage at all. So the father decided to ask a Buddhist monk (僧侣) to train his boy. The Buddhist monk said to the boy’s father, “I insist that your son 2 (leave) alone here. I’ll make him into a true man within three months. 3 , you can’t come to see him during this period.” Three months later, the boy’s father 4 (return). The Buddhist monk arranged a boxing match between the boy and an 5 (experience) boxer. Each time the fighter struck the boy, he fell down, 6 at once the boy stood up; and each time a heavy blow knocked him down, the boy stood up again. Several times later, the Buddhist monk asked, “ 7 do you think of your child?” “What a shame!” the boy’s father said, “I never thought he would be so 8 (easy) knocked down. I needn’t have him stay here any longer! ” “I'm sorry that that’s all you see. Don’t you see that each time he 9 (fall)  down, he stands up again instead of 10 (cry)? That’s the kind of courage you wanted him to have.” 答案：1.who 2．be left 3．However 4．returned 5．experienced 6．but 7．What 8．easily 9．falls 10．crying ●通过语法填空，提炼文章语言点，实现语块的二次输入。 15mins Activity 7 Language points key words: anxious，distance， bitterly,ashamed ,location ,surroundings Exercise： 1. She is ________ (焦虑的) about her son’s safety. 2. We saw the mountain from a ________ (距离) of ten kilometres. 3. He ________ (痛苦地) regretted what he had done. 4. You should be ________ (惭愧的) of your bad behaviour. 5. Please tell me your exact ________ (位置). 6. He likes the city but dislikes its ________ (环境). 答案：1. anxious 2. distance 3. bitterly 4. ashamed 5.location 6. surroundings Key sentences: ①This workshop introduces/introduced the evolution of Chinese animation and lays/laid emphasis on its important role in domestic art innovation. ②With the development of society, English evolves with the times by creating new words and giving new meanings to old ones. Translation: 1．随着社会的发展，英语通过创造新词和赋予旧词新义的方式与时俱进。 2．我突然意识到，一个人越依恋故土，就越舍不得远走他乡。 3．据估计，中国国内消费的大米约 60%来自袁隆平培育的杂交水稻。 答案：①With the development of society, English evolves with the times by creating new words and giving new meanings to old ones. ②It suddenly strikes me that the more attached one is to their hometown, the less willing they are to leave for a distant land. ③It is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan’s hybrid strains. ●教考衔接——通过提炼语言点和练习，让学生了解本篇文章中的重要知识点。 10mins Activity 8 Self-evaluation Content Standards Starts self-assessment Can I speak the spirit of scientific exploration? ☆ ☆ ☆ mutual evaluation Does my partner's dialogue sound natural and smooth? ☆ ☆ ☆ ●通过自我评价，帮助学生了解自己的学习情况，提高学习的积极性和主动性。 2mins 迁移创新 作业内容 作业设计意图 3mins 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一，基础较好的同学可以选择作业二。 二选一 1. 1.80–100 词短文写作：A Journey of Discovery，复述达尔文提出进化论的过程. 2. 拓展作文：How will humans evolve in the future?（贴合课堂讨论话题） 【答案】 1.1.In 1831, Darwin sailed on the ship Beagle. He collected many plant and animal samples during the trip. When reaching the Galapagos Islands in 1835, he found finches with differently shaped beaks.He guessed all species evolved from ancient ancestors through natural selection. Years later, he published On the Origin of Species and put forward the Theory of Evolution, changing people’s understanding of nature forever. 2.Humans will slowly evolve to fit modern life. We may get better eyes to adapt to screens and more flexible fingers for high-tech tools. Our brains will grow sharper to process information. With global warming, we’ll gain stronger heat resistance. If people live in space one day, low gravity will also reshape our bodies over thousands of years. ●通过写作练习，让学生在真实的语境中运用所学知识，提高学生的语言综合运用能力、逻辑思维和表达能力。 板书设计 Unit 5 Revealing nature Starting out & Understanding ideasDuring his journey After his journey Before his journey A journey of Discovery 教学反思 优点：分层作业设计合理，基础复述与拓展写作兼顾不同水平学生，做到因材施教。 融入自评环节，能及时让学生自查课堂掌握情况，课堂评价完整。 缺点：读中段落提问偏多，部分基础弱学生跟不上思考节奏，留给小组讨论的时间不足。 生词讲解独立于文本，没有结合达尔文航行语境深挖，学生容易死记单词。 1 / 11 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $