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

The Secret language of Plants Unit 5 Revealing nature Learning Objectives Get a better understanding of the ways in which plants communicate. Develop the ability to sort out the main idea of a para and identify the structure of expository essays. Develop a positive attitude of treasuring nature and living in harmony with nature. How do you communicate with each other? body language face to face social media Do you know how animals communicate with each other? How do bees communicate? They can tell others by dancing. How do ants communicate? Ants communicate by tentacles or chemicals. attack breathe eat sleep move speak steal think What do you think plants can do? Tick the boxes. Flytrap mimosa pea Now talk about what else you think plants can do and give examples. make medicine protect environment reduce noise predict the solar terms 节气 Read for the passage structure and main idea of each part Plants can communicate Plants have various ways to communicate Scientists are learning more about plants’ language Part 1 Introduction and thesis statement Part 2 Body Part 3 Conclusion Para. 1 - Para. 2 Para. 3 - Para. 5 Para. 6 Read the passage to sort out the type of writing. An exposition Read the passage and find out the ways in which plants communicate. They can communicate with each other in three ways： by using chemicals sound and “wood wide web” Modern research is showing that plants can 1_________________________. Using chemicals The plant releases chemicals 2_____________ that are being eaten. When another plant detects the chemicals, it starts to 3______________________________. communicate with each other from the leaves release its own, different chemicals Check the answers on P76 Using sound Some plants make noises 4______________. A chilli plant can 5__________________________ __________________. Some trees make 6___________________________ ______________________________________. with their roots tell if a neighbouring plant is helpful, or unfriendly clicking noises when there is not enough water, indicating drought is arriving Check the answers Using the “wood wide web” This fungal network links 7___________________________ _________. Plants can 8_____________________________ with each other. Plants can 9________________________________________ to attack other plants. the roots of different plants to each other share information and even food steal food from each other, or spread poisons Maybe one day we will be able to “talk” with plants. Check the answers What is the passage most likely to be taken from? A. A scientific magazine B. A guide book C. A fiction story D. A news report What is the writer’s purpose in writing the passage? A. To introduce the ways plants communicate with each other B. To compare the differences between plants and humans C. To predict where technology will take plants D. To call on humans to protect the plants Why do scientists do research on this plant warning system? To explore the wonders of nature To apply it into agriculture To protect plants To predict the future of plants Scientists hope to learn more about this plant warning system, so that we can use it to grow crops without pesticides. 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 Scientists are learning more every day about the secret way in which plants talk to each other. Who knows? Maybe one day we will know enough about plant communication to be able to “talk” with them ourselves. 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? Share your thinking on the following questions Personification. It can make descriptions more vivid. “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. Learning to learn Personification means giving human characteristics to something that is not human. By using human characteristics to describe an object, animal or even a place, personification can make descriptions more vivid. People can have a better understanding of plants and explore more about the mysterious plants. People can make better use of plants for the benefit of mankind. 1. What are the benefits of studying plant communication？ People can better protect nature and live in harmony with nature. Think Share 2. What discoveries are described in the two reading passages in this unit? What do their meanings have in common? Passage 1 reveals the secret of evolution. Passage 2 reveals the secret of communication between plants. They all reflect that there are numerous secrets in nature that are waiting to be explored. 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 Complete the summary by filling correct words or correct forms of the given words. Thank you 23 Unit 5-3 英语选择性必修第一册 2019 Other 239323.3 x264 0.128.2216+688+32 a17ff54 tMod [8-bit@4:2:0 X86] $$