Unit 5 Revealing nature Developing ideas课件(共23张PPT内镶嵌3视频)-外研版（2019）选择性必修第一册

(共23张PPT)
The Secret language of Plants
Unit 5
What is language
Activity 1 Free Talk
Watch and say
Do you think the tree has language And how they communicate
“wood wide web” refers to an amazing system of communication that can link nearly every plant in a forest.
What does “wood wide web” mean
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
Other ways of plant communication
Look at the pictures and talk about what plants on the earth can do.
attack
breathe
eat
sleep
move
speak
steal
think
Learn more about moving plants
Look at the title and the picture to guess what the passage is mainly talk about
Pre-reading
part 1
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
Read for structure
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)
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
Fast reading
Organise information from the passage and complete the diagram.
P58
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
▲
(　　)1.When will plants use chemicals to communicate with each other
A.When they feel thirsty.
B.When they need fertiliser.
C.When they get threats from outer environment.
D.When they hear noises and send signals to call for help.
C
Careful reading
▲
(　　)2.In which way is the wood wide web similar to the Internet
A.Both can link all things in the system together.
B.Both have the same communicating systems.
C.Both bring convenience to people’s lives.
D.Both need advanced science and technology.
Careful reading
A
▲
(　　)3.What’s the main idea of the passage
A.Plants also have secrets.
B.Plants can talk with animals and people.
C.Plants need protecting urgently.
D.Plants can communicate in their own way.
Careful reading
D
▲
(　　)4.Where is the passage most likely to appear
A.In a newspaper advertisement. B.In a diary.
C.In a science magazine. D.In a guidebook.
C
Careful reading
Summary
▲
legends
chemicals
attacked
clicking
spreading
Learning Objectives
To master the main idea of the article and clearly describe the ways in which plants communicate.
2. To understand the text type, master the text structure and personification
3. To further understand nature, and establish a positive life attitude of protecting nature .
1. Plants can communicate by using chemicals ,sound
and “wood wide web.”
What have you learned
2. This is an expository using a lot of descriptions of personification.
3. We should have a better understanding and make better use of plants to protect nature and live in harmony with nature.
We have learned:
Summary
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.
What are the benefits of studying plant communication？
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.
What are the benefits of studying plant communication？
People can better protect nature and live in harmony with nature.
The Secret language of Plants
Thanks