Unit 5 Revealing nature Understanding ideas教学设计-外研版高中英语(2019)选择性必修一

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名称 Unit 5 Revealing nature Understanding ideas教学设计-外研版高中英语(2019)选择性必修一
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版本资源 外研版(2019)
科目 英语
更新时间 2025-04-22 09:43:32

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/ 让教学更有效 高效备课 | 英语学科
Unit 5 Revealing nature教学设计
课题 Understanding ideas 单元 Unit 5 学科 English 年级 高二
教材 分析 该板块为本单元主体课文,体裁为记叙文,文章以时间及行程路线为线索,介绍了著 名的生物科学家达尔文著名的发现之旅,此次旅行,达尔文做了大量考察研究并获取 了许多关于生物进化的信息及发现,并基于此次之旅,发表了后期改变世界的著名的 《物种起源》一书。该文章首先介绍了贝格尔号船长希望招募一名特殊的船员,这名 船员能借此机会访问遥远而鲜为人知的世界并从中获益,又接着介绍了达尔文的相关 背景情况。最后着重讲述了达尔文搭乘贝格尔号去探索未知世界时,发现物种之间的 特殊现象后,发现问题,提出假设,寻找证据,得出结论,直到最后将其发展成理论 的过程。读前的导入活动旨在帮助学生激活关于生物进化的相关知识及储备相应的词 汇,为课文介绍达尔文及其重要发现进行学习铺垫。读中活动引导学生通过文本解读 更深入地理解文章内容,解读文章标题。阅读活动包括判断主旨大意、理解文章结构 和细节以及开放性问答等活动,retelling 环节借助叙述达尔文在贝格尔号的行程路 线中,发现了不同地区生物的特点及生物之间的联系这一细节,结合发现之旅中他的 房间放满了收集的样本等具体事实性行为,体现出达尔文在科学探究中细心耐心又具 有敏锐的观察力、不惧困难的优秀品质。文中重点词汇主要涉及探索、发现、物种等, 如:appear, evolve, inspire, suspect, ancestor, species 等。句式涉及有关科学 探究的过程和方法,如 As he studied these, he asked himself the question; But Darwin began to think differently 等。
学习 目标 1.熟悉话题语境,获取文章的主旨大意; 2.感知叙述类文本语篇结构及语言特点,并按照事情发展顺序梳理达尔文关于生物进化的发现之旅; 3.在语篇中学习和掌握与话题相关词汇并能运用所学词汇进行交流;从达尔文的故事中体会探索的艰辛,学习科学家的不畏艰难、大胆质疑、勇敢探究的科学精神和创新精神;汲取积极的科研态度,指导实际学习生活。
重点 1.学生能够综合运用各种语言技能,掌握有关科学发现和生物进化的词汇及表达, 深 刻理解达尔文重大发现的历程; 2.恰当使用所学词汇与表达谈论、阐述相关话题,深化对单元主题意义的理解与挖掘; 3.更好地理解克服困难、大胆探索的科学精神和创新精神。
难点 引学生通过提出疑问、分析开放性问题进行思维碰撞,总结科学家的优秀品质,达到 对科学精神的深层理解。
教学过程
教学过程 Step 1: Lead-in 教师活动:通过图片导入: 1. What species do you recognize in the picture 2. What factors can cause the process of evolution 学生活动:Think and share their answers about plants they recognized, and then discuss the reasons that can cause the process of evolution . 活动类型:学习理解类活动 设计意图: 帮助学生激活已有信息,初步激发对于生物进化的好奇,引起对于阅读文 章的兴趣。 评价方式:课堂提问 + 教师评价 Step 2: Reading for the main idea and genre. 教师活动: 1. Can you guess the genre of the passage according to the title and the picture 2.Read the passage and choose the main idea of the passage and give your reasons 学生活动:Read the passage and the main idea of the passage 活动类型:学习理解类活动 设计意图: 教师引导学生看图片,解读该图片所承载的语言信息及知识信息。 评价方式:课堂提问 + 教师评价 Step 3: While-reading Read for details. Para. 2: On his journey Darwin studied various living things in their natural environments and samples of the plants and animals he had collected. He noticed that some species of animals were very similar to each other. Para. 3: Generate ideas Darwin asked the questions: How did different species come to exist Maybe animals evolved as they adapted to their changing environments? Para. 4: Look for more evidence On the Galápagos Islands: He noticed that there was a difference between the finches on each of the islands. It seemed the beaks had evolved according to what food was available on that particular island. Para. 5: Develop ideas Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before and it had slowly evolved into many new species. Para. 6: Propose a theory The Theory of Evolution: living things, including humans, had evolved from lower forms of life. 从Darwin 开始探索之旅到出版《物种起源》跨越28年,引导学生讨论Darwin身上的品质,进行思维的迁移,之后回到para1, 探索之旅开始前人们对Darwin的评价。 Para. 1: Introduction What are the people’s comments to him 活动类型:学习理解类活动+思维迁移创新类活动 设计意图: 教师带领学生进一步梳理文章结构,引导学生理解、掌握与Darwin的发现之旅相关的细节,检验学生对课文脉络、行文逻辑、细节内容及话题相关语言的理解和整合情况。 评价方式:课堂提问 + 小组讨论+学生自评+教师评价 Step 4: Post-reading Think and share. (1) What’s your understanding of the title The figures of speech (2) Retell the journey according to the key words.
活动类型:思维迁移创新类活动 设计意图: 教师鼓励学生深入理解课文,根据关键词复述发现之旅,进行知识和思维能力的拓展与迁移。 评价方式: 小组讨论+学生互评+教师评价 Step 6: Group work Discussion: How do you think the human species will evolve in the future ( changes in the environment, technology, social structures, and so on.)One possibility is that humans may continue to evolve physically to better adapt to our changing environment and lifestyles. Another possibility is that humans may evolve culturally and socially, rather than physically. As we continue to develop new forms of communication and interaction, our social structures and cultural world we create around us. 活动类型:思维迁移创新类活动 设计意图: 教师鼓励学生在深入理解课文的同时联系自身实际,表达自己的观点,进行知识和思 维能力的迁移与创新。 评价方式: 小组讨论+学生互评+教师评价 Step7: Homework Write a short passage according to these questions. What have you learnt about the spirit of scientific exploration How can this spirit help you in your life and studies
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