外研版（2019）选择性必修第一册Unit 5 Developing ideas The secret language of plants 课件（24张PPT)

(共24张PPT)
Unit 5
The Secret language of Plants
Do you think plants can speak like humans do
What do you think plants can do Tick the boxes.
attack
breathe
eat
sleep
move
speak
steal
think
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√
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language of plants
Is it realistic that trees can communicate with people
Look at the title and picture of the passage. Predict how does plants communicate
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”
Read the passage to figure out
1. What’s the genre of the passage
A. Narration B.Argumentation
C. News D.Exposition
2. What is the structure of the passage
It tells us the way in which plants can communicate.
part 1
structure
Para1-2
part 2
part 3
Plants can communicate.
Para3-5
Para 6
Plants have various ways to communicate.
Scientists are learning more about plants’ language.
Introduction and thesis statement
main body
conclusion
exposition
Organise information from the passage and complete the diagram.
1. communicate with each other
2. from the leaves
3. release its own, different chemicals
4. with their roots
5. tell if a neighbouring plant is helpful, or unfriendly
6. clicking noises when there is not enough water, ndicating drought is arriving
7. the roots of different plants to each other
8. share information and even food
9. steal food from each other, or spread poisons
How does the author explain three ways of communicating
The author explains thress ways by giving examples.
How does the author connect the “main body” part
More surprisingly, plants also use...
Most surprisingly of all...
1. What figure of speech is being used when the plants are described as calling for help What is its function
2. Group work: draw the picture of how a plant communicates when being attacked.
communicating by using chemicals
1. What figure of speech is being used when the plants are described as calling for help What is its function
Personification. It can make descriptions more vivid.
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.
2. Group work: draw the picture of how a plant communicates when being attacked.
Don’t forget key words.
communicating by using the “wood wide web”
What figure of speech is being here What is its function
Analogy. It is vivid and makes it easier for readers to understand.
What does “wood wide web” mean
Think share
“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.
1. What do you think are the benefits of studying plant communication
2. What discoveries are described in the two reading passages in this unit and what do their meanings have in common
critical thinking
1. What do you think are the benefits of studying plant communication
It will help us get a better understanding of the secret of nature and encourage us to explore more about the mysterious nature.
What’s more, it will teach us that human should live in harmony with mother nature. And it is our responsibility to fulfill the mission.
2. 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. Passage 2 reveals the discovery of communication between plants.
They all reflect that there are numerous secrets in nature that remain to be explored.
Give a talk about communication between living things.