资源简介

The
Secret Language
of Plants
Developing ideas
Look at the pictures and tick what plants can do .
attack
breathe
eat
sleep
move
speak
steal
think
√
√
√
√
√
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”.
Talking plants have long been a thing of myths and legends.
Marco polo
Alexander the Great
Alexander the Great and Marco Polo were said to have visited a talking tree in India.
In Avatar, trees can communicate with animals and people.
With us long believing that talking plants are fantasy, modern research is showing that plants can communicate with each other.
猴面小龙兰
Using chemicals
The plant releases chemicals from the leaves that are being eaten.

When another plant detects the chemicals , it starts to release its own different chemicals.
Using sound
Some plants make noises with their roots. A chilli plant can tell if a neighboring plant is helpful, or unfriendly.

Some trees make clicking noises when there is not enough water, indicating drought is arriving.
Using the “wood wide web”
Plants can steal food from each other, or spread poisons to attack other plants.
This fungal network links the roots of different plants to each other.
Plants can share information and even food with each other.
Maybe one day we will know enough about plant communication to be able to “talk” with them ourselves.
Personification is used .
It can make descriptions more vivid.
1 What figure of speech is being used when the plants are described as calling for help? What is its function?
Think & Share
“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?
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.
4 What discoveries are described in the two reading passages in this unit and what do their meanings have in common?
山荷花
银
扇
草
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. 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.
Work in groups.
马桶猪笼草
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.

直击高考
to communicate
attacked
are being eaten
a
its
大地翅膀
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.
龙血树
Surprisingly
indicating
amazing
which
with
Writing an
observational journal
Read the observational journal and answer the questions.
How were the daffodil bulbs planted?
They were planted side by side in soil with the pointed ends facing up.
2. In what environment did the
leaves grow?
The leaves grew in a sunny, but
cool place.
3. What do the flowers look like?
The flowers are yellow and
white, and shaped like trumpets.
Work in pairs.
Look at the pictures and talk about how the sunflower grows.
Write your observational journal about the sunflower.
Make improvements to each other’s observational journals and share them with the class.
An observational journal about the sunflower
1 June
Germination （使发芽）
Covered with 1/2 cm of moist soil, the sunflower seed takes five to 12 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
Growth
The root continues to grow downward. 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
Flowering
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 disk. Over the course of one week, the yellow ray florets, the disk florets bloom across the core of the sunflower blossom. It is yellow, looking beautiful.
Beijing Museum of
Natural History
National Museum of Natural History,
Washington, DC
Natural History
Museum, London
If you want to investigate more information about nature, you can visit a natural history museum.
If it isn’t possible for you to do this, visit its website. Here are some options:
Can you understand my language?

展开更多......

收起↑