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(共43張PPT)
Unit 5
Revealing
nature
Developing ideas
BY MICHELLE
Lead in
What can we human do
For example, we can walk, we can talk, we can breathe…
Can plants do these
( ) attack ( ) move ( ) breathe ( ) speak
( ) eat ( ) steal ( ) sleep ( ) think
Look at the pictures and talk about what plants can do.
Plants do behave.
Can plants talk to each other
New research:
It appears that plants can communicate after all.
Read the passage and find out the ways in which plants communicate.
The Secret Language of Plants
Pre-reading
A. Narrative
B. Exposition
C. Argumentation
What is the genre of this passage
What is the passage most likely to be taken from
A scientific magazine
A guide book
A fiction story
What is the writer’s purpose in writing the passage
To introduce the ways plants communicate with each other.
To compare the differences between plants and humans.
To predict where technology will take plants.
While-reading：Read for structure
Part 1
Introduction
Part 2
Body
Part 3
Conclusion
Para. 1
Plants can communicate.
(The thesis statemnet)
Plants have various ways to communicate.
(chemicals, sound, www)
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Scientists are learning more about plants’ language.
(restate the thesis statement)
While-reading：Read for details
Para. 1-2: Introduction
Para.1 Talking plants have long been 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__________________.
advice and warnings
animals and people
Avatar
Alexander the Great
Marco Polo
Which of the following is the function of paragraph 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.
Para 2. is used to clearly illustrate the thesis statement. It’s also a transitional paragraph.
Para. 3: Using chemicals
chemicals
a bean plant
attack
insects
another bean plant
release
release
detect
different
chemicals
attract
wasp
kill
kill
drive away
Why do scientists do research on this plant warning system
To explore the wonders of nature
To apply it into agriculture
To protect plants
To predict the future of plants
Enjoy the sentence
This is like a warning, or a call for help: “I’m being attacked！”
Which figure of speech is being used
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.
Use personification to rewrite the sentences.
1. When the plant is attacked by insects, it will quickly convey the
message to his neighbors.
2. When the tree lacks water inside, it will make a noise to attract
attention.
“Feeling” the pain caused by insects, the plant “tells” this message to its neighbors.
When the tree is thirsty, it will “shout” to get noticed.
“Feeling” the pain caused by insects, the plant shouts “I am being attacked” to let its neighbors know.
Para. 4: Using sound
Some plants make noises ____________________________.
A chill plant can _______________________________________.
Some trees make________________________________________ _____________________________________________________.
with their roots
tell if a neighboring plant is helpful, or unfriendly
clicking noises when there is not enough water, indicating drought is arriving
Para. 5: Using the “Wood Wide Web”
“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
World Wide Web
Wood Wide Web
system for communication among ________on munication among ________in the forest.
how is it linked a worldwide network of computers linked by ____________________. the wood wide web is linked
underground by______, which links the roots of__________________ to each other.
enable to do communicate, entertain and shop by network. share ________________________
with each other.
cybercrime 1. cheat someone out of his money or information. 2. spread computer virus to attack others’ computer. 1. steal_______from each other
2. spread_________to attack
___________.
humans
plants
cables and satellites
fungi
different plants
information and even food
food
poison
other plants
The differences between “World Wide Web” and “Wood Wide Web”
Para. 5: Conclusion
According to Para. 6, what is the writer’s attitude towards the scientific research on the secret language of plants
A. Positive B. Negative C. Neutral D. Indifferent
What is the function of Para.6
It is a conclusion and a restatement of the thesis statement. It also raises an expectation about future research of plant communication.
Organise information from the passage and complete the diagram.
communicate with each other
from the leaves
release its own,
different chemicals
with their roots
tell if a neighbouring plant is helpful, or unfriendly
clicking noises to indicate drought's coming
the roots of different plants
share information and even food
steal food from each other or spread poisons
Introduction
Explanation 1
Explanation 2
Explanation 3
Conclusion
Post-reading
What are the benefits of studying plant communication？
What discoveries are described in the two reading passages in this unit and what do their meanings have in common
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.
People can better protect nature and live in harmony with nature.
What are the benefits of studying plant communication？
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.
Work in groups
Give a talk about communication between living things.
1 Read the passage again and talk about how plants communicate.
2 Think about and discuss the following ways of communication in the
animal world.
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.
What other ways can you think of
Work in groups
Give a talk about communication between living things.
3 Organise your ideas following the steps below.
Begin with what living things you have chosen to talk about.
Explain how they communicate and give examples.
Conclude by explaining what we have learnt from their behaviour.
4 Give a talk to the class about communication between living things.
Language points
Many cultures have stories of talking trees that give advice as well as warnings to people. 許多文化都有會說話的樹的故事, 它們給人們提供建議和警示。
as well as 也; 和……一樣; 不但……而且
【語塊積累】
as well 　　　　 adv. 也, 還有
as good as 和……幾乎一樣, 實際上等于……
as far as adv. 至于, 直到, 遠到; 就……而言
as long as 只要; 和……一樣長
as soon as 一……就
Language points
With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all. 長久以來, 我們一直認為會說話的植物是幻想, 而最新的研究揭示了一些令人驚奇的事情: 植物似乎可以交流。
【句式解構】
　　本句為主從復合句。句中With us long believing that是with引導的復合結構作狀語, 第一個that引導的是賓語從句, 第二個that 引導的是主語從句, it 是形式主語。
You have no idea how she finished the relay race with her foot wounded so much.
The old couple often take a walk after supper in a park with their pet dog following them.
Language points
It has been known for some time that plants use chemicals to communicate with each other. 人們早已知曉植物之間使用化學物質進行交流。
【句式解構】
　　本句為主從復合句。句中It為形式主語; that引導的是主語從句。
It was obvious that the manager of the coffee shop was waiting for Li Fang to leave.
It is said that Chinese people are living for others, while the Americans are for themselves.
常見的it作形式主語
(1)it作形式主語, 真正的主語是后面that引導的主語從句, 常見的有:
①It+be+形容詞(possible, strange, natural, important. . . ) +that從句
②It+be+過去分詞(said, thought, believed, supposed, reported. . . ) +that從句
③It+不及物動詞(seems, occurs, happens. . . ) +that從句
④It+be+名詞詞組(a pity, an honour, no wonder) +that從句
Language points
This is like a warning, or a call for help. 這就像一個警告, 或者一個求助電話。
call for 需要; 要求
【語塊積累】
call for　　　　需要; 要求; 去接某人
call in 順便拜訪; 請人來幫忙; 電話通知
call off 取消
call on/upon 呼吁; 號召
call out 喊叫
call up 使想起, 使回憶起
【即學活用】
(1)語法填空。
①The trip to Italy might be called ___.
②The film called ___ memories of my little brother.
(2)I often ______on him at the weekend.
我經常在周末去看他。
(3)Some groups are _________the release of political prisoners in that country. 那個國家的一些團體要求釋放那些政治犯。
off
up
call in
calling for
Language points
Some of these chemicals drive insects away. 其中一些化學物質可以驅趕昆蟲。
drive away 驅趕走
【語塊積累】
drive 　　　　 v. & n. 駕駛
drive sb. to 開車送某人去……
drive down to 開車去
drive out of 驅趕出
drive. . . off/away 驅趕走
drive on 開車繼續趕路
driving license n. 駕駛執照
driving test n. 駕駛執照考試
Language points
It is in some ways similar to the Internet we use. 它在某些方面類似于我們使用的互聯網。
in some ways 在某些方面; 在某種程度上
【語塊積累】
all the way 總是; 一直 on the/one’s way 在……路上
by the way 順便 no way 沒門, 不可能
in the way 擋道; 妨礙 make one’s way 前進
in this/that way 以……方式 in no way 決不
have a long way to go 有很長的路要走
in a way/ in one way/ in some way/ways 在某種程度上
【即學活用】
(1)Jane’s grandmother had wanted to write a children’s book for many years,
but one thing or another always got _________.
簡的祖母多年來一直想寫一本兒童讀物, 但總是遇到這樣或那樣的障礙。
(2)The obstacles facing him today are ____________as big as ever.
他如今所面對的障礙, 在某些方面和以往一樣大。
(3) We got there by driving slow __________.
我們開著車去了那里, 一路上開得很慢。
(4) _________am I going to adopt any of his methods.
我絕對不會采納他的任何方法。
in the way
in some ways
all the way
In no way
Language points
But just like our own Internet, the wood wide web has its own version of “cybercrime”. 但就像我們自己的互聯網一樣, 樹維網也有自己的“網絡犯罪”版本。
one’s own某人自己的
【語塊積累】
own 　　　　　　　　vt. 擁有
pron. 屬于自己的
on/by one’s own 獨自, 靠自己　
of one’s own 屬于某人自己的
come into one’s own 獲得應有的榮譽、承認、名聲等
hold one’s own(against sb. /sth. ) 堅守立場; 不被擊敗
【即學活用】
(1)It is estimated that 40% of high school students _____________mobile
phones.
據估計, 40%的高中生有自己的手機。
(2)Look at all ____________as if you just bought or received them today.
對待你所擁有的一切, 就像你今天剛剛買到或收到的一樣。
have their own
that you own
Writing an observational journal
Read the observational journal and answer the questions.
1　How were the daffodil bulbs planted
2　In what environment did the leaves grow
3　What do the flowers look like
They were planted side by side in soil, with the pointed ends facing up.
The leaves grew in a sunny, but cool place.
The flowers are yellow and white, and shaped like trumpets.
Work in pairs. Look at the pictures and talk about how the sunflower grows.
Now write your observational journal about the sunflower.
One possible version:
An observational journal about the sunflower
1 June
Covered with 1-2 cm of moist soil, the sunflower seed takes a few days to come up after being planted. Water has been added regularly and the hard seed coat softens in the damp soil to allow the first root to pierce downwards and the first leaves to push to the soil surface.
6 July
The root continues to grow downwards. The single stem grows hollow and smooth, revealing large spade-shaped leaves from the growing tip. Gradually, the plant’s growing tip reveals the first hints of development of the flower bud. The plant stem becomes more woody.
26 July
About three weeks after the flower bud first becomes visible at the tip of the sunflower stem, it enlarges and begins to reveal a flattened disc. Over the course of one week, the yellow ray florets, the disc florets bloom across the core of the sunflower blossom. It is yellow, looking beautiful.
Presenting ideas
Work in groups. Look at the information about 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.
Choose one nature documentary you like and complete the notes.
Title : ____________________________________________________
Main theme: _______________________________________________
Reasons you recommend it :__________________________________
_________________________________________________________
Practise presenting information about your documentary. Consider the following:
1 the structure of your presentation
2 useful words, expressions and structures
Give your presentation to the class.
Review language points.
Write your observational journal about the sunflower.
THANKS FOR WATCHING

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