Unit 5 Revealing Nature Developing ideas 课件-2025-2026学年高二英语外研版选择性必修第一册

该高中英语课件围绕“植物的秘密语言”展开，核心知识点包括植物通过化学信号、声音及“木广网”的交流方式。课堂导入以“Plants can...”问题链激活兴趣，逐步引导学生探究交流特点（合作、竞争、感知），结合文本结构分析（Para.1-2导入，3-5三种方式，6结论）搭建学习支架。 其亮点在于以问题驱动和跨学科类比提升思维品质，如对比表格直观呈现“万维网”与“木广网”异同，拟人修辞分析（“call for help”）增强语言理解（语言能力）。作业设计（沟通类型表格）和Think and Share促进主动探究（学习能力），帮助学生构建知识体系，教师可高效实施互动教学。

Developing ideas The Secret Language of Plants Lead in What can plants do? Do you think? Plants can ___________. attack breathe eat sleep move speak steal think How do they speak? Why do they speak? 2 Any questions you want to ask? chemicals (warning) a plant drive insects away another plant different chemicals release detect release Para. 3 attract -- kill What are these plants doing? What is the feature of this commounication? cooperative; strategic 4 More surprisingly, plants also use sound to communicate. People can’t hear these sounds, but plants are making them. Some plants make noises with their roots. Corn and chilli plants do this. They also “listen” to the noise from other plants. Corn and A chilli plant can tell if a neighboring plant is helpful, or unfriendly Some trees make clicking noises when there is not enough water, indicating drought is arriving. What is the feature of this commounication? perceptive 5 Wood Wide Web communication among ________in the forest. the wood wide web is linked underground by______, which links the roots of__________________ to each other. share ________________________ with each other. 1. steal_______from each other 2. spread_________to attack ___________. plants fungi different plants information and even food food poison other plants system for how is it linked enable to do cybercrime What is the feature of this commounication? cooperative &competitive World Wide Web Wood Wide Web system for communication among ________on earth. communication among ________in the forest. how is it linked a worldwide network of computers linked by ____________________. the wood wide web is linked underground by______, which links the roots of__________________ to each other. what is it used for share ________________________ with each other. cybercrime 1. steal_______from each other 2. spread_________to attack ___________. humans plants cables and satellites fungi different plants information and even food food poison other plants The differences between “World Wide Web” and “Wood Wide Web” communicate, entertain and shop... 1. cheat money or information. 2. spread computer virus to attack others’ computer. How similar the plants’ world is to human’s! writing technique? analogy(类比) Para. 6: Conclusion According to Para. 6, what is the writer’s attitude towards the scientific research on the secret language of plants? A. Positive B. Negative C. Neutral D. Indifferent While-reading：Read for structure Para. 1-2 introduction three ways of plant’s communcation Para. 3-5 Para. 6 Conclusion W Topic sentence Topic sentence Examples TA Q1:Why mention ? To arouse readers’ interest What are the topic sentences? Why does the author use “amazing”? To arouse readers’ interest What figure of speech is being used when the plants are described as calling for help? What is its function? Think share 1. This is like a warning, or a call for help: “ I’m being attacked！” 2. They also ‘listen’ to the noises from other plants. 3. The wood wide web has its own version of ‘cybercrime’. Personification (拟人) means giving human characteristics to something that is not human. It can make descriptions more vivid. 修辞手法 Q3:Is the “amazing” research result revealed at once or gradually ? It has been known for some time that.... More surprisingly,... Most surprisingly of all, How does the author make the research result more and more amazing ? types of communication functions characterisitcs of the communiction application ？ ？ Homework Useful expressions myths and legends release tiny amounts of chemicals a call for help detect chemicals drive away insects the plant warning system grow crops without pesticides making clicking noises indicate drought is arriving spread poisons signal to sb. 神话与传说 释放微量的化学物 呼救(名词短语) 检测到化学物质 赶走昆虫 植物报警系统 种庄稼不用杀虫剂 发出咔哒的声音 暗示干旱即将来临 扩散毒物 向某人示意 15 Alexander the Great and Marco Polo were said to have visited such a tree in India. Para.1 sb be said to have done =it is said that sb have done... 据说某人已经做了某事 据说亚历山大大帝和马可.波罗曾在印度已见过一颗这样的树。 while - reading sb be said to do =it is said that sb do... 据说某人已经做了某事 With us long __________ that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all. Para.2 with 的复合结构，即“with + 宾语 + 宾补（非谓语动词）” while - reading believing This happens when a plant, say a bean plant, gets attacked by insects. Para.3 “比如”，用于在讨论时举例 while - reading Key sentences A chilli plant can tell if a ________ (neighbor) plant is helpful, or unfriendly. ________ the Internet is a worldwide network of computers linked by cables and satellites, the wood wide web is linked underground by fungi. Some trees make clicking noises when there is not enough water, ________ (indicate) drought is arriving. ________ (use) the wood wide web, plants can share information and even food with each other. Scientists are learning more every day about the secret ways ________ which plants talk to each other. When another bean plant detects the chemicals from its ________ (injure) neighbor, it starts to release its own, different chemicals. neighboring While indicating Using in injured 19 Think and Share How do animals communicate with each other? What other ways can you think of? Animals communicate through touch, chemical signals, dances and other movements, and sounds (songs, roars and chirps). Give a talk to the class about communication between living things. 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 behavior. 20 Lavf59.23.100 Packed by Bilibili XCoder v2.0.2 $