外研版(2019)选择性必修第一册 Unit 5 Revealing nature Developing ideas 课件 (共21张PPT,内嵌视频)

文档属性

名称 外研版(2019)选择性必修第一册 Unit 5 Revealing nature Developing ideas 课件 (共21张PPT,内嵌视频)
格式 pptx
文件大小 13.1MB
资源类型 教案
版本资源 外研版(2019)
科目 英语
更新时间 2023-12-12 18:43:22

图片预览

文档简介

(共21张PPT)
The Secret language of Plants
Unit 5
Look at the pictures and tick what plants can do.
Flytrap(捕蝇草)
It can catch insects.
mimosa[m mo z ]
(含羞草)
It can shut its leaves when touched.
pea(豌豆)
It can sow its own seeds.
attack
breathe
eat
sleep
move
speak
steal
think
Now talk about what else you think plants can do and give examples.
make medicine
protect
environment
reduce noise
predict the solar terms
节气
The Secret language of Plants
Read the passage and find out the ways in which plants communicate.
They can communicate with each other :
by using chemicals
sound
and “wood wide web”
What's the genre of the passage
A. Exposition (说明文)
B. Argumentation (议论文)
C. Narration(记叙文)
The Secret Language of Plants
PartⅠPara_____
PartⅡ Para_____
Part Ⅲ Para_____
I__________ to the topic
Plants have various ways to c___________
Scientists are learning more about the l_______ of plants.
1-2
3-5
6
ntroduction
ommunication
anguage
Para. 1
Talking plants have long been a thing of myths and legends. Many cultures have stories of talking trees that give advice as well as warnings to people. Alexander the Great and Marco Polo were said to have visited such a tree in India. And in some modern stories, such as the film Avatar, trees can communicate with animals and people.
— a thing of myths and legends
Talking trees give _____________________ to people, eg., Alexander the Great and Marco Polo were said to have visited such a tree in India.
Talking plants
——————
Evidence from
Evidence from _________________
some modern stories
___________________ .
advice and warnings
Read for paragraph organisation:
stories of many cultures
Trees in the film Avatar can communicate with animals and people
Para. 2
With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all.
Read to answer the questions:
What is the relation between this sentence and the rest of Para. 2
Para 2 is used to clearly illustrate the thesis statement.
It’s also a transitional paragraph.
An adversative relation (转折关系).
(For long we have believed that talking plants are just fantasy, however, plants do communicate as revealed by research, which is amazing.)
Para. 3
bean plant A
_____
___
releases ______________________
as a warning or call for help: “I’m being attacked!”
tiny amounts of chemicals
bean plant B
detects the chemicals
releases its own, ______________
different chemicals
some of these chemicals
__________________
drive insects away
others attract
__________
the wasps
Read to work out the graph:
Plants use chemicals to communicate with each other
attack
kill
Inspiration for scientific research
Scientists hope to learn more about this ___________________,
so that we can use it to grow crops without _________.
plant warning system
pesticides
Para. 4
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 chilli 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.
Read to work out the table:
Plants How they communicate using sound Example
corn and chilli plants
____________ with their roots
listen to the noises from ___________
some trees
make noises
other plants
make clicking noises when there is not ___________, indicating drought is
arriving.
enough water
A chilli plant can tell if a
_____________________ is helpful, or unfriendly.
neighbouring plant
Para. 5
Full name _________________ ____________________
System for ______________among humans ______________ among plants
Link every person on Earth every _______ in a forest
Linked by ___________ and ___________ underground _______which links the _______ of different plants to each other
Use it to share _____________ and _______with each other
Cybercrime cheat someone out of his______ spread computer virus to attack others’ __________ steal ______ from each other
spread _________ to ______
other plants
communication
communication
plant
cables
satellites
fungi
roots
World Wide Web
Wood Wide Web
communicate
entertain
shop
information
food
computers
money
food
poisons
attack
Para. 6
Scientists are learning more every day about the secret ways 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.
What is the function of Para. 6
Para 6 is a conclusion and a restatement (重述) of the passage topic.
It also raises an expectation about future research of plant communication.
Read to answer the question:
Organise information from the passage and complete the diagram.
P58
Modern research is showing that plants can
1_________________________.
Using chemicals
The plant releases chemicals 2_____________ that are being eaten.
When another plant detects the chemicals, it starts to
3______________________________.
communicate with each other
from the leaves
release its own, different chemicals
Check the answers
Using sound
Some plants make noises 4______________.
A chilli plant can 5__________________________
__________________.
Some trees make 6___________________________
______________________________________.
with their roots
tell if a neighbouring plant is helpful, or unfriendly
clicking noises when there is not
enough water, indicating drought is arriving
Check the answers
Using the “wood wide web”
This fungal network links 7___________________________
_________.
Plants can 8_____________________________ with each other.
Plants can 9________________________________________
to attack other plants.
the roots of different plants to each other
share information and even food
steal food from each other, or spread poisons
Maybe one day we will be able to “talk” with plants.
Check the answers
1. What figure of speech is being used when the plants are described as
calling for help What is its function
2. What does “wood wide web” mean
Share your thinking on the following questions
Personification. It can make descriptions more vivid.
“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.
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.
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.
1. What are the benefits of studying plant communication?
People can better protect nature and live in harmony with nature.
2. What discoveries are described in the two reading passages in this unit What do their meanings have in common
Passage 1 reveals the secret of evolution.
Passage 2 reveals the secret of communication between plants.
They all reflect that there are numerous secrets in nature that
are waiting to be explored.
Scientists are learning the secret ways in which plants “talk” to each other. It has been known for some time that plants use chemicals 1______________ (communicate) with each other. When 2________ (attack) by insects, the plant releases chemicals from the leaves that 3______________ (eat). This is like 4___ warning. When another plant detects the chemicals, it starts to release 5___ (it) own, different chemicals. Some chemicals drive insects away.
6____________ (surprising), plants also use sound to communicate. Some plants make noises with their roots. Some trees make clicking noises when there is not enough water, 7__________ (indicate) drought is arriving.
Most surprisingly of all, plants have an 8________ (amaze) system of communication that can link nearly every plant in a forest. It is called “ wood wide web”, 9______ is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food 10_____ each other.
Surprisingly
indicating
amazing
which
with
to communicate
attacked
are being eaten
a
its
Complete the summary by filling correct words or correct forms of the given words.