外研版(2019)选择性必修第一册 Unit 5 Revealing nature Developing ideas 教学设计(表格式)

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名称 外研版(2019)选择性必修第一册 Unit 5 Revealing nature Developing ideas 教学设计(表格式)
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版本资源 外研版(2019)
科目 英语
更新时间 2024-03-14 18:15:58

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Unit 5 Revealing nature
Developing ideas教学设计
课型 Reading 课时 1课时
主题 语境 人与自然——认识自然、探索自然
内容 分析 本部分呈现了从另一角度反映单元主题的课文,语篇类型为描述性说明文,以植物界语言的奥秘为题,具体介绍了自然界中不同植物之间不同的交流方式,从而使学生通过了解神奇的自然,不仅增长了自然界知识,而且还激发了其对自然的好奇心。
教学 目标 1. 理解文章,通过完成相应的活动,掌握与主题相关的关键词汇,并能清晰叙述文本介绍的自然界植物间的几种交流方式; 2. 通过学习课文,使学生初步认识自然、探索自然,逐树立热爱自然的意识。
教学 重点 1. 引导学生通过阅读来把握和概括段落大意和推测作者写作意图; 2. 巩固过去完成时的用法。
教学 难点 引导学生树立与自然和谐相处的积极的人生态度。
教 学 过 程 Step 1: Lead-in Watch a video and tick. What can plants do 教师引导学生观看视频,讨论与植物相关的话题。 Step 2: Pre-reading Read the passage and find out the ways in which plants communicate. 在读前活动中,教师引导学生关注植物的行为,激发学生的阅读兴趣。 Step 3: While-reading 1. Read for structure. Para.1-2: Plants can communicate. (Introduction) Para.3-5: Plants have various ways to communicate. (Body) Para.6: Scientists are learning more about plants’ language. (Conclusion) 2. Read for details. Para.1: Talking plants have long been a thing of myths and legends. Para 2. is used to clearly illustrate the thesis statement. It’s also a transitional paragraph. Para. 3: Using chemicals Para. 4: Using sound Para. 5: Using the “Wood Wide Web” (“Wood Wide Web” refers to an amazing system of communication that can link nearly every plant in a forest.) Para. 6: Conclusion 3. Organise information from the passage and complete the diagram. 教师可以利用读后活动检验学生对课文结构和主要内容的理解情况。 Step 4: Post-reading Think and share. (1) What are the benefits of studying plant communication? (2) What discoveries are described in the two reading passages in this unit and what do their meanings have in common 教师提供必要的支持,鼓励学生在深入理解课文主题的同时联系自身实际,进行知识和思维能力的拓展与迁移,培养深层理解语篇、探究主题意义和高阶思维的能力。 Step 5: Thinking & sharing 1 What figure of speech is being used when the plants are described as calling for help What is its function 2 What does “wood wide web” mean 3 What do you think are the benefits of studying plant communication Answers: 1. Personification. It can make descriptions more vivid. 2. “Wood wide web” means an amazing system of communication that can link nearly every plant in a forest. It is linked underground by fungi and this fungal network links the roots of different plants to each other. Using the wood wide web, plants can share information and even food with each other. 3. Passage 1 reveals the discovery of evolution and Passage 2 reveals the discovery of communication between plants. They all reflect that there are numerous secrets in nature that remain to be explored. Step 6: Group work Give a talk about communication between living things in groups. 1 Read the passage again and talk about how plants communicate. 2 Think about and discuss the following ways of communication in the animal world. Bees “dance” to signal to other bees that they have found food. Ants communicate with each other through touch, chemical signals, moving their bodies and even using their legs to make sounds. What other ways can you think of 3 Organise your ideas following the steps below. Begin with what living things you have chosen to talk about. Explain how they communicate and give examples. Conclude by explaining what we have learnt from their behaviour. 4 Give a talk to the class about communication between living things. Now talk about how well you contributed to your group discussion and help each other to make improvements. Step 7: Language points 1. Many cultures have stories of talking trees that give advice as well as warnings to people. 许多种文化中都有会说话的树的故事,它们会给人们建议和警告。 (1) that引导定语从句,引导先行词talking trees。 (2) as well as 也;和……一样;不但……而且 a. 连接并列成分,如名词、形容词、动词、介词短语等,意为“和,也;不但……而且……,既……又……”。强调的是as well as前的成分。 b. 意为“除了……还”,相当于besides, in addition to, apart from。后面通常接名词或v.-ing形式,尤其是当其位于句首时。 c. 表示同级比较,意为“和……一样好”,此时well是副词。 2. Alexander the Great and Marco Polo were said to have visited such a tree in India. 据说亚历山大大帝和马可波罗曾在印度访问过这样一棵树。 sb. be said to do=It is said that sb. ...=people say sb. ... “据说某人做了某事” e.g. It is said that we will use robots on campus. 据说我们将在校园里使用机器人。 3. With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all. 长期以来,我们一直认为会说话的植物只是幻想,而最新研究却揭示了一件惊人的事情:植物似乎终究可以交流。 (1) with复合结构(with+代词+doing)作状语。 此处为“with的复合结构”形式,即“with+名词/代词+非谓语动词”。 在此结构中,非谓语动词可以是不定式(多指动作尚未发生)、动词-ing形式(多指动作正在进行)、动词-ed形式(与前面的名词构成被动关系)。 (2) that talking ...的that引导宾语从句。 (3) it appears that ...似乎……,it作形式主语,真正的主语是由that引导的从句。 4. The plant releases tiny amounts of chemicals from the leaves that are being eaten. 这种植物从正被吃掉的叶子中释放出微量的化学物质。 (1) tiny amounts of 微量的 a large/small amount of 大/少量的 large/small amounts of 大/少量的 in large amounts 大量地 amount vi. 合计,共计 amount to 合计;共计;等同于 (2) that引导定语从句,修饰先行词the leaves。 5. It is in some ways similar to the Internet we use. 它在某些方面与我们使用的互联网相似。 (1) in some ways 在某些方面; 在某种程度上 all the way     总是; 一直 on the/one’s way 在……路上 by the way 顺便 in a way/ in one way/ in some way/ways 在某种程度上 in no way 决不 no way 没门, 不可能 in the way 挡道; 妨碍 make one’s way 前进 have a long way to go 有很长的路要走 in this/that way 以……方式 (2) we use作定语修饰the Internet。 Step 8: Summary Help the students retell how plants communicate with each other. Step 9: Practice Complete the summary with the correct words or the correct forms of the words in the bracket according to the passage. Scientists are learning the secret ways in which plants “talk” to each other. It has been known for some time that plants use chemicals 1___________ (communicate) with each other. When 2___________ (attack) by insects, the plant releases chemicals from the leaves that 3___________ (eat). This is like 4___________ warning. When another plant detects the chemicals, it starts to release 5___________ (it) own, different chemicals. Some chemicals drive insects away. 6___________ (surprising), plants also use sound to communicate. Some plants make noises with their roots. Some trees make clicking noises when there is not enough water, 7___________ (indicate) drought is arriving. Most surprisingly of all, plants have an 8___________ (amaze) system of communication that can link nearly every plant in a forest. It is called “wood wide web”, 9___________ is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food 10___________ each other. Answers: 1 to communicate 2 attacked 3 are being eaten 4 a 5 its 6 Surprisingly 7 indicating 8 amazing 9 which 10 with Step 10: Homework Finish relevant exercise.