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 Unit5 Developing ideas flytrap 捕蝇草 mimosa 含羞草 pea 豌豆 think attack breathe eat sleep move speak steal Look at the pictures and match what these plants can do. Lead-in Look and speak Activity 1 Do you know any other plants which can do these actions mentioned above? Pre-reading Think and answer Activity 2 Read the passage and find out the ways in which plants communicate. They may mainly communicate with each other by using chemicals, sound and “wood wide web”. Read and find While reading Activity 3 Para1-2 It appears that plants can communicate. Para3-5 the ways that talking plants communicate with each other Para 6 Scientists are learning more about the secret ways in which plants talk to each other. Read for the structure of the text. Read for the structure While reading Activity 4 What has the new research revealed? With us long believing that talking plants are fantasy, new research has revealed something amazing:it appears that plants can communicate after all. It has revealed that plants can communicate. Read for details While reading Activity 5 How does a bean plant use chemicals to communicate with each other? It has been known for some time that plants use chemicals to communicate with each other.This happens when a plant, say a bean plant, gets attacked by insects. The plant releases tiny amounts of chemicals from the leaves that are being eaten. This is like a warning, or a call for help: “I'm being attacked!" When another bean plant detects chemicals from its injured neighbour, it starts to release its own, different chemicals. Some of these drive insects away.Others attract insects chemicals the wasps! The wasps kill the insects that are eating the bean plants. Scientists hope to learn more about this plant warning system, so that we can use it to grow crops without pesticides. Amazing Read for details While reading Activity 5 How do plants use sound to communicate? 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 noises from other plants.A chili plant can tell if a neighbouring plant is helpful, or unfriendly. Some trees make clicking noises when there is not enough water, indicating drought is arriving. make noises with roots listen to noises from other plants make clicking noises indicating drought Read for details While reading Activity 5 Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest. Scientists call this system the “wood wide web”. It is in some ways similar to the Internet we use. While the Internet is a worldwide network of computers linked by cables and satellites, the wood wide web is linked underground by fungi. This fungal network links the roots of different plants to each otherang the wood wide web, plants can share information and even food with each other. For example, some pine trees can send food to smaller pine trees to help them grow. But just like our own Internet, the wood wide web has its own version of “cybercrime". Plants can steal food from each other, or spread poisons to attack other plants. Perhaps one day scientists will learn how to create a “firewall” to help prevent these attacks within the wood wide web. What does “wood wide web” mean? Read for details Activity 5 communicate with each other from the leaves release its own, different chemicals with their roots tell if a neighbouring plant is helpful, or unfriendly clicking noises when there is not enough water, indicating drought is arriving. the roots of different plants to each other Modern research is showing that plants can__________. Using chemicals Using sound Using the "wood wide web The plant releases chemicals________ that are being eaten. When another plant detects the chemicals, it starts to _____________ Some plants make noises__________. A chilli plant can ___________ Some trees make ___________________ This fungal network links___________ plant can _________ with each other. Plants can ___________ ____________________ to attack other plants. Maybe one day we will be able to "talk" with plants. share information and even food steal food from each other, or spread poisons Complete the diagram with expressions from the text. Read and complete While reading Activity 6 ... The plant releases tiny amounts of chemicals from the leaves that are being eaten. This is like a warning, or a call for help: “I'm being attacked!"When another bean plant detects the chemicals from its injured neighbour, it starts to release its own, different chemicals. .. What fugure of speech is being used when the plants are described as calling for help? personification 修辞格 Read for language appreciation While reading Activity 7 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. 拟人 Read for language appreciation While reading Activity 7 ...Some plants make noises with their roots.Corn and chilli plants do this.They also “listen” to the noises from other plants. A chilli plant can tell if a neighbouring plant is helpful, or unfriendly... Plants can steal food from each other, or spread poisons to attack other plants. Perhaps one day scientists will learn how to create a “firewall”to help prevent these attacks within the wood wide web. Can you find more sentences with personification used in the text. personification Read for language appreciation While reading Activity 7 What do you think are the benefits of studying plant communication？ people have chance to explore more about nature and its mystery. Grow crops without pesticides by using the plant warning system. Predict whether the drought is arriving by the sound of some trees. People can have a better understanding of plants. Create a“firewall”to help prevent these attacks within the wood wide web. Think and share Post-reading Activity 8 What discoveries are described in the two reading passages in this unit and what do their meanings have in common? discovery of evolution discovery of communication between plants Secrets in nature need to be explored. Think and share Post-reading Activity 8 Prepare a talk with your group members about communication between plants. group-work Post-reading Activity 9 Write a passage to intruduce communication between plants. Share cinformation about the talking plants to your best friends. Assignment Share and write Thanks! $$