Unit 5 Period 3 Developing ideas & Presenting ideas（课件）英语外研版2019选择性必修第一册

高中英语外研版2019选择性必修第一册 Period 3 ： Developing ideas & Presenting ideas Unit 5 Revealing nature Learning objectives 1. Students can understand and analyze texts about the “language” of plants, master relevant vocabulary and grammar, and accurately express ideas related to plant communication. 2. Through learning personification, students will be able to appreciate its application in describing plants, and use this rhetorical device to enrich their writing. 3. Students are able to write an observational journal about plants, and recommend a nature documentary clearly and logically in English. 4. Develop students' interest in exploring the secrets of nature, enhance their awareness of protecting plants and the ecological environment, and cultivate cross - cultural thinking in scientific topics. Contents 1. Lead in 2. Reading 3. Group Work 4. Writing 5. Summary 6. Assessment 7. Homework 01. Lead in Lead-in Lead in Let’s explore the secret of plants. Other ways of animal communication sound touch expression body movement vision sound wave 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 Lead-in Lead in Look at the pictures and tick what plants can do. Lead-in Lead in Now talk about what else you think the plants can do and give examples. make medicine protect environment reduce noise predict the solar terms 02. Reading Read the passage and find out the ways in which plants communicate. Plants can communicate with each other by using chemicals, sound and “wood wide web”. 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. Read the passage and match each paragraph with its main idea. Para. 1 Para. 3 Para. 4 Para. 2 a. Plants use chemicals to communicate with each other. b. Plants use sound to communicate. c. Talking plants have been a thing of myths and legends. d. The muddy court helped him to be creative and flexible. e. New research has revealed that plants can communicate with each other. Para. 5 f. Plants use the wood wide web to communicate. Para. 6 The Secret Language of Plants Plants can communicate . Scientists are learning more about plants’ language. Para 1~2 Para 3 Para 4 Para 5 Para 6 Using chemicals Using sound Using WWW Narration(记叙文) Exposition（说明文） Argumentation（议论文） Introduction Body Conclusion Structure Genre(文体) 14 Read for detailed information （para 1) were said to have visited a talking tree in India. trees can communicate with animals and people. Para 1：talking plants in myths and legends Alexander the Great Marco polo Avatar With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all. Which of the following is not the functions of paragraph 2? To lead to the following context To arouse readers’ interests To summarize the above To further explain Read for detailed information (para 2) 16 chemicals a bean plant insects another bean plant different chemicals wasp attack release detect release kill drive away attract kill Read paragraph 3 carefully and fill in the mind map 17 According to para. 4, which of the following is not the thing plants use sound to do? Listen whether their neighbors are helpful or not B. Indicate the arrival of drought C. Identify the unfriendly plants D. Help each other get water 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. 18 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 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 . Wood wide web 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. 21 Organise information from the passage and complete the diagram. Using chemicals * The plant releases chemicals ____________ that are being eaten. * When another plant detects the chemicals, it starts to ______________ ____________________. from the leaves release its own, different chemicals Using sound * Some plants make noises _____________________. * A chilli plant can __________ __________________________ __________________________. * Some trees make ___________ __________________________. with their roots tell if a neighbouring plant is helpful, or unfriendly clicking noises to indicate drought’s coming Using the “wood wide web” * This fungal network links _____ ____________________________. * Plants can __________________ _____________ with each other. * Plants can __________________ _____________________ to attack other plants. the roots of different plants to each other share information steal food from each other Modern research is showing that plants can __________________________. Maybe one day we will be able to “talk” with plants. communicate with each other and even food or spread poisons 22 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. 03. Group Work Think & share 1. What figure of speech is being used when the plants are described as calling for help? What is its function? Do you know of any artworks created mainly by technology? Personification. It can make descriptions more vivid. Think & share 2. What does “wood wide web” mean? “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. Think & share 3. What do you think are the benefits of studying plant communication? 4. What discoveries are described in the two reading passages in this unit and what do their meanings have in common? 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. Work in groups. Give a talk about communication between living things. What other ways can you think of? 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. Work in groups. Give a talk about communication between living things. 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. 04. Writing Sunday 20 October Needs of plants. Sunday 20 October Read the observational journal and answer the questions. 1. How were the daffodil bulbs planted? They were planted side by side in soil, with the pointed ends facing up. 2. In what environment did the leaves grow? The leaves grew in a sunny, but cool place. 3. What do the flowers look like? The flowers are yellow and white, and shaped like trumpets. Sunday 20 October Work in pairs. Look at the pictures and talk about how the sunflower grows. Now write your observational journal about the sunflower. Sunday 20 October How to write the observational journal? Paragraph 1: time, the way to plant, environment, the special requirement Paragraph 2: time, sprout, shape and texture, environment Paragraph 3: time, height, colour and shape Sunday 20 October Common expressions for observational journal about plant. 1. 种植及发芽阶段： ... has/have been planted in soil (a pot/flowerpot/flowerbed/...) ... need(s) watering regularly. I water it every three days. It is necessary to keep the soil damp/ put them in the shade/ put them in a cool place/... The seed sprouts two days after... Sunday 20 October 2. 生长发育阶段： New leaves sprout from the stem. A flower bud is growing at the top of the stem. A bud gradually becomes a flower. The roots grow deeper into the soil. 3. 成熟、结果阶段： Each stem produces a single flower. As time goes by, it goes/ runs to seed. ... grow(s) taller and stronger... The white flowers have fallen from the stem. Common expressions for observational journal about plant. Sunday 20 October Work in pairs. Make improvements to each other’s observational journals and share them with the class. An observational journal about the sunflower 1 June Covered with 1-2 cm of moist soil, the sunflower seed takes a few days to come up after being planted. Water has been added regularly and the hard seed coat softens in the damp soil to allow the first root to pierce downwards and the first leaves to push to the soil surface. 6 July The root continues to grow downwards. The single stem grows hollow and smooth, revealing large spade-shaped leaves from the growing tip. Gradually, the plant’s growing tip reveals the first hints of development of the flower bud. The plant stem becomes more woody. 26 July About three weeks after the flower bud first becomes visible at the tip of the sunflower stem. It enlarges and begins to reveal a flattened disc. Over the course of one week, the yellow ray florets, and disc florets bloom across the core of the sunflower blossom. It is yellow, looking beautiful. Sample 1 What form of art does each picture show? 2 Have you ever come across them? Work in groups. Look at the information about the nature documentaries and answer the questions. 1. Can you guess what secrets of nature are revealed in these documentaries? 2. What other nature documentaries have you watched? Which one do you like most? Give your reasons. Choose one nature documentary you like and complete the notes. Practise presenting information about your documentary. Consider the following: 1. the structure of your presentation 2. useful words, expressions and structures Give your presentation to the class. 06. Summary Lead-in Summary 07. Assessment Lead-in Assessment Learning Objectives Score(1-5) 1.植物的交流方式 2.拟人化修辞手法的运用 3.观察日记的写作要点 5-完全能；4-基本能；3-不确定；2不太能；1-完全不能 08. Homework Lead-in Homework 完成观察日记的写作，要求内容完整、语言生动，字数不少于150字，并配上自己绘制的植物生长过程简笔画。 Thank you for your listening Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 Lavf58.20.100 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] Lavf57.62.100 Lavf58.29.100 Bilibili VXCode Swarm Transcoder v0.7.45 $$