Unit 5 Revealing nature Developing ideas 课件-2024-2025学年高中英语外研版（2019）选择性必修第一册

SB1U5 Revealing Nature Developing ideas Reading:The Secret Language of Plants Learning objectives To master the main idea of the text and clearly describe the ways in which plants communicate. 2. To understand the text type（体裁）, master the text structure and the figure of speech(修辞) . 3. To further understand nature, and establish a positive life attitude of protecting nature . 1. What is the telegraph plant(跳舞草) doing? Lead-in flytrap 捕蝇草 The can _______ insects. Its leaves can _______ when touched. mimosa 含羞草 fold up catch pea 豌豆、豆角 The can sow(播种) its own ________. seeds attack breathe eat sleep move speak steal think 2. What else can plants do? Would plants communicate with each other? What if plants can speak? Pre-reading Where can we find this passage? A. In an economic book B. In a history book C. On a scientific magazine D. In a novel While-reading Fast reading Activity 1. Read for structure and genre. What is the structure of the passage? A． B． C． D． PartⅠPara_____ PartⅡ Para_____ Part Ⅲ Para_____ Introduction to the topic Plants have various ways to communicate Scientists are learning more about the language of plants. Exposition Part 1 Careful reading 1.What do people think of talking plants? 2.What does the new research have found? Topic sentence Activity 2. Read for details. Part 2 1. Read and find out the ways in which plants communicate. Plants can use ___________, ____________, ________________________ to communicate. chemicals sound "Wood wide web" 2. Read Para. 3 and find out how the plants use chemicals to communicate with each other. chemicals chemicals chemicals detect chemicals chemicals detect Grow crops without pesticides. "I'm being attacked!" 3. What figure of speech(修辞手法) is used here? personification (拟人手法) It can make the description more vivid. Please find out the sentences with personification in the passage. 3. They also “listen” to the noises from other plants. 4. A chilli plant can tell if a neighbouring plant is helpful, or unfriendly. 2. Some of these chemicals drive insects away. 1. When another bean plant detects the chemicals from its injured neighbour, it starts to release its own, different chemicals. 5. Using the wood wide web, plants can share information and even food with each other. 6. Plants can steal food from each other, or spread poisons to attack other plants. make noises listen to noises helpful? unfriendly? Drought is arriving. Indicate drought. Type Link every person on earth every _____________ in the forest Linked by _____________ and _________________ underground ___________ which links the ___________ of different plants to each other Use it to share _____________________ and ___________with each other Cybercrime spread computer virus to attack others' ___________ steal ______________ from each other and spread _____________ to _____________other plants 4. Read para. 5 carefully and find the differences between "World Wide Web" and "Wood Wide Web". World Wide Web Wood Wide Web plant cables satellites fungi roots communicate, entertain, shop and study information food computers food poisons attack Help to prevent attacks . What is the writer’s attitude towards the scientific research on the secret language of plants? A. Positive B. Negative C. Neutral(中立的) D. Indifferent(漠不关心的) Part 3 Post-reading Impossible Possible Para.1 Talking plants have long been a thing of myths and legends. Para.6 Maybe one day we will know enough about plant communication to be able to “talk” with them ourselves. What can you learn from the beginning and ending? The spirit of exploration 组长（group leader） 记录员（recorder） 时间管理员（Timekeeper） 发言人（spokesperson） 信息提供者（Information Provider）(1-2) Is it beneficial(有益处的) to explore nature? Why? （Give a talk） Think & Share As far as I'm concerned, exploring nature is beneficial. First of all, it can help us live better lives and make our world more amazing when we learn how nature works. In addition, it helps us with environmental management. By learning the secrets of nature, we can manage our planet and ensure a healthy environment for the future.Last but not least, we can improve public health by understanding nature. All in all, exploring the secrets of nature is not just about satisfying our curiosity; it is about improving our lives. I can understand the main idea of the passage correctly. 4 3 2 1 I can divide the passage correctly. 4 3 2 1 I can retell the ways of plants’ communication well. 4 3 2 1 I can collect all the sentences of personification well. 4 3 2 1 I can grasp the humanity(人文）meaning the text conveys. 4 3 2 1 Self-evaluation 1. Finish the mind-map of the passage. Assignment: 2. Filling in the blanks with correct forms of the given words. 直击高考 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. Surprisingly indicating amazing which with to communicate attacked are being eaten a its Lavf58.20.100 Lavf58.20.100 Lavf57.62.100 Lavf57.62.100 $$