资源简介

(共40张PPT)
attack move breathe speak
eat steal sleep think
Look at the pictures and talk about what plants can do.
flytrap (捕蝇草)
mimosa [m 'm z ]
(含羞草)
pea
Activity 1 Lead-in
What else do you think the plants can do
Look at the pictures and talk about what plants on the earth can do.
attack
breathe
eat
sleep
move
speak
steal
think
Activity 1 Lead-in
Let’s watch another video clip.
Read the passage and find out the ways in which plants
communicate.
Read Para 1 and find out its topic sentence.
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.
Activity 2 Careful reading
— 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.
Evidence from stories of many cultures
Evidence from _________________
some modern stories
Trees in the film Avatar can communicate with
___________________.
animals and people
advice and warnings
Talking plants
What can plants do in the film Avatar
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
Scanning:
With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all.
Read Para 2 and answer the following question.
Activity 2 Careful reading
Q. What is the function of Para 2
A. To introduce the following context.
B. To describe an experiment.
C. To tell the importance of plants.
D. To give a piece of evidence.
√
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
Scanning:
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)
Q1. How does a bean plant use chemicals to communicate with each other
Q2. Why do scientists do research on this plant warning system
Q3. What figure of speech is being used when the plants are described as calling for help
It has been known for some time that plants use chemicals to communicate with each other. This happens when a plant, say a bean plant, gets attacked by insects. The plant releases tiny amounts of chemicals from the leaves that are being eaten. This is like a warning, or a call for help: “I'm being attacked!" When another bean plant detects chemicals from its injured neighbour, it starts to release its own, different chemicals. Some of these drive insects away. Others attract insects---the wasps! The wasps kill the insects that are eating the bean plants. Scientists hope to learn more about this plant warning system, so that we can use it to grow crops without pesticides.
Read Para 3 and answer the following questions.
Careful reading
bean plant A
_____
bean plant B
______ the chemicals
________
insects away
drive
________
the wasps
Work out the graph:
kill
Q1. How does a bean plant use chemicals to communicate with each other
releases its _____, different chemicals
_________ tiny amounts of _____________ as a warning or call for help: “I’m being attacked!”
release
chemicals
attack
detect
own
attract
___
Scientists hope to learn more about this plant warning system,
so that we can use it to grow crops without _________.
pesticides
Q2. Why do scientists do research on this plant warning system
A. To explore the wonders of nature.
B. To apply it into agriculture.
C. To protect plants.
D. To predict the future of plants.
√
Q3. What figure of speech修辞手法 is being used when the plants are described as calling for help
A. simile
D. personification
C. hyperbole
B. metaphor
√
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.
Can you find more examples in the coming paragraphs
[p s n f ke n] 拟人化
[ha p b li] 夸张
[ met f (r)]隐喻，暗喻
[ s m li] 明喻
▲
(　　)1.When will plants use chemicals to communicate with each other
A.When they feel thirsty.
B.When they need fertiliser/fertilizer.
C.When they get threats from outer environment.
D.When they hear noises and send signals to call for help.
C
Careful reading
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
Scanning:
Organise information from the passage and complete the diagram.
P76
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 ___________
__________________________.
Using the “wood wide web”
* This fungal network links _____ ____________________________.
* Plants can __________________
_____________ with each other.
* Plants can __________________
_____________________ to attack other plants.
Modern research is showing that plants can __________________________.
Maybe one day we will be able to “talk” with plants.
communicate with each other
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.
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
Read Para 4 and work out the table.
Careful reading
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
Scanning:
Organise information from the passage and complete the diagram.
P76
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.
Modern research is showing that plants can __________________________.
Maybe one day we will be able to “talk” with plants.
communicate with each other
Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest. Scientists call this system the “wood wide web”. It is in some ways similar to the Internet we use. While the Internet is a worldwide network of computers linked by cables and satellites, the wood wide web is linked underground by fungi. 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. For example, some pine trees can send food to smaller pine trees to help them grow. But just like our own Internet, the wood wide web has its own version of “cybercrime”. Plants can steal food from each other, or spread poisons to attack other plants. Perhaps one day scientists will learn how to create a “firewall” to help prevent these attacks within the wood wide web.
Read Para 5 and work out the table about the wood wide web.
Careful reading
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 .
▲
(　　)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
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
Wood wide web
Organise information from the passage and complete the diagram.
P76
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.
Modern research is showing that plants can __________________________.
Maybe one day we will be able to “talk” with plants.
communicate with each other
the roots
of different plants to each other
share information
and even food
steal food from each other
or spread poisons
What is the secret of Plants
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.
Read Para 6 and answer the questions.
Activity 3 Careful reading
Q1. What is the writer’s attitude towards the scientific research on the secret language of plants
A. Positive B. Negative C. Neutral D. Indifferent [ n d fr nt] 漠不关心的
√
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
Task 3. The writing style of the passage is ___________.
A. Narration[n re n]记叙文
B. Argumentation[ ɑ ɡjum n te n]议论文
C. Exposition[ eksp z n]说明文
Exposition [ eksp z n]literally means “explaining or making clear by giving details”.Exposition, as a passage type, is to expose information, simply put, to present the information in a way to get it across to readers.
√
▲
(　　)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
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
▲
(　　)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
Task 2. What discoveries are described in the two reading passages in this unit and what do their meanings have in common
discovery of evolution
discovery of communication between plants
Secrets in nature need to be explored.
Activity 4 Post reading
Learn more about moving plants
给出建议
据说
与……交流
遭受攻击
从……释放
把……赶走
发出噪音
毕竟
更令人吃惊的是
和……类似
把……和……连接起来
从……偷……
Important phrases
give advice/suggestions
be said to/ It is said that...
communicate…with
get attacked/be under attack
release … from
drive ... away
make noises
after all
more surprisingly
be similar to
link … to
steal … from

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