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(共33张PPT)
Unit 5 Revealing nature
Developing ideas
Look at the pictures and tick what plants can do
attack breathe eat
sleep move speak
steal think
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Read the passage and find out the ways in which plants communicate.
They may communicate with each other by using chemicals, sound and “wood wide web”.
Read the passage and talk about how plants communicate.(3 ways)
Using chemicals
Using sound
Using the
“wood wide web”
Read and Think
What is the passage most likely to be taken from
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
Talking plants have long been a thing of myths and legends.
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It appears that plants can communicate after all.
It has been known for some time that plants use chemicals to communicate with each other.
More surprisingly, plants also use sound tocommunicate.
Most surprisingly of all, plants have an amazing system of communication that link nearly every plant in a forest.
Maybe one day we will know enough about plant communication to be able to talk with them ourselves.
Match the topic sentence to each paragraph
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, indicating 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
Think about and discuss the following ways of communication in the animal world. What other ways can you think of
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.
Think & Share
1. What figure of speech is being used when the plants are described as calling for help What is its function
Personification is used .
It can make descriptions more vivid.
“Wood wide web” refers to 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.
2. What does “wood wide web” mean
It will help us know more about the world of plants and then 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 an important lesson, that is, human should live in harmony with mother nature. And it is our responsibility to fulfill the mission.
3. What do you think are the benefits of studying plant communication
Unit 5 Revealing Nature
Presenting ideas
First, let’s watch a video.
Look at the information of 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.
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.
Human and Nature
introduction of an animal---the antelopes
beautiful pictures and instructive meaning. Its purpose is to arouse people’s awareness of protecting the extinct species on earth.
For example
Practise presenting your documentary.
Consider the following:
the structure of your presentation
useful words, expressions and structures
collect information
analyze information
evaluate the documentary
polish your composition to perfect it
Give your introduction of the nature documentary to the class.
Vote for the report the class would most like .
Section Ⅳ　Writing
如何写植物观察日记

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