外研版（2019）选择性必修第一册Unit 5 Revealing nature Developing ideas 课件 (共37张PPT，内嵌视频)
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| 名称 | 外研版（2019）选择性必修第一册Unit 5 Revealing nature Developing ideas 课件 (共37张PPT，内嵌视频) |  | |
| 格式 | pptx | ||
| 文件大小 | 49.6MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-04-30 15:05:58 | ||
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(共37张PPT)
Developing ideas
—Reading comprehension
The Secret Language of Plants
Unit 5 Revealing nature
By the end of this class, you will be able to：
1. get a better understanding of the ways in which plants communicate;
2. develop the ability to sort out the main idea of a paragraph and identify the structure of exposition;
3. develop a positive attitude of treasuring nature and living in harmony with nature.
CONTENTS
Pre-reading
I
While-reading
II
Post-reading
III
Sentences analysis
IV
Pre-reading
Enjoy a short video and think about what interesting facts can you get from this short video
For me, I found it definitely amazing that trees can communicate with people in Avatar!
What else do you think plants can do
Look at the pictures and tick what plants can do.
attack
breathe
eat
sleep
move
speak
steal
think
√
√
√
√
√
Let’s find out whether plants communicate with each other. If they do, how
Read the passage to explore!
While-reading
1. What’s the main idea of the text
A．Some ways in which plants communicate.
B．Talking plants are fantasy.
C．Plants can hear people’s sounds.
D．Plants have different languages.
√
Activity 1 Fast-reading for main ideas
C. Many cultures have stories of talking trees.
A. New research has revealed something amazing: it
appears that plants can communicate.
F. Plants use chemicals to communicate with each other.
E. Plants also use sound to communicate.
B. Plants have an amazing system of communication called “wood wide web”．
D. Scientists are learning more about the secret ways in which plants talk to each other.
2. Match the main idea of each paragraph.
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Para. 1
Part 1
Introduction
Part 2 Body
Part 3
Conclusion
Para. 1
Plants can communicate.(The thesis statement)
Plants have various ways to communicate.(chemicals, sound, wood wide web)
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Scientists are learning more about plants’ language(restate the thesis statement)
3. Analyze the structure of the passage.
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 stories of many cultures
Evidence from _________________
some modern stories
Trees in the film Avatar can communicate with
___________________.
animals and people
advice and warnings
Activity 2 Careful-reading for details
Paras. 1-2 (Introduction)
With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all.
1. 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(主旨句). It’s also a transitional paragraph.
the thesis statement
√
2. What is the main idea of the first two paragraphs
A. Marco Polo spent most of his time studying plants.
B. There are some legends about talking trees.
C. In the movie Avatar, trees can save people.
D. New research has revealed that plants appear to communicate.
√
chemicals
a bean plant
insects
another bean plant
different
chemicals
wasp
1. Finish the mind map
Para. 3 (Using chemical)
attack
release
detect
release
attract
drive
away
kill
2. Choose the best answer
(1) How does a bean plant act first when attacked by insects
A．It runs away.
B．It releases chemicals.
C．It calls for help.
D．It drives insects away.
(2) Why do scientists do research on this plant warning system
A．To explore the wonders of nature.
B．To protect plants.
C．To apply it to agriculture.
D．To predict the future of plants.
√
√
(3) What can we learn from Paragraph 3
A．Plants can release chemicals from the roots.
B．Plants can release chemicals when attacked.
C．Chemicals from some plants destroy the other plants.
D．Scientists find the method of growing crops without pesticides.
√
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
some trees
____________ with their roots
listen to the noises from ___________
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
1. Fill in the blanks
Para. 4 (Using sound)
Wood Wide Web
Para. 5 (Using “WWW”)
1. Let’s watch a video about “wood wide web”
2.Answer the following questions
(1)What does “wood wide web” mean
“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.
(2)What’s the function of “wood wide web”
Using the wood wide web, plants can share information and even food 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.
3. What is the function of “Most surprisingly of all”
It’s a mark: the following sentence will explore the same topic as what has been mentioned, yet developing the topic to a deeper, further degree than all that has been written before.
4. How’s “wood wide web” similar to the Internet
They are both systems of communication in essence(本质上), linked by fungi and cables and satellites respectively(分别地).
5．Which writing skills does the writer use in this paragraph
A．Providing examples.
B．Making a comparison.
C．Giving a definition.
D．All of the above.
√
What is the writer’s attitude towards the scientific research on the secret language of plants
A．Positive. B．Negative.
C．Neutral. D．Indifferent.
2. 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.
1. Do the following exercises
Para.6 Conclusion
√
The whole passage
1. What’s the type of the passage
A．Narration. B．Argumentation.
C．Descriptive exposition. D．News report.
2．Where is the passage most likely taken from
A．A guide book. B．A scientific magazine.
C．A fiction story. D．A news report.
√
√
√
3．What is the writer’s purpose in writing the passage
A．To introduce the ways plants communicate with each other.
B．To compare the differences between plants and humans.
C．To predict where technology will take plants.
D．To call on humans to protect the plants.
(1)Which figure of speech is being used in these sentences
(2)What is its function
1.Talking plants have long been a thing of myths and legends.
2.Many cultures have stories of talking trees that give advice as well as warnings to people.
3.This is like a warning, or a call for help: “I’m being attacked!” When another bean plant detects the chemicals from its injured neighbour, it starts to release its own, different chemicals.
4.Some of these chemicals drive insects away. Others attract insects—the wasps!
5.Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest.
6.They also “listen” to the noises from other plants. A chilli plant can tell if a neighbouring plant is helpful, or unfriendly.
4. Read for beautiful sentences
Personification.
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.
(1) 风吹过来，花儿在风中跳起了舞蹈。
(2) 大火吞没了整个森林。（swallow vt.吞没）
(3) 岁月不等人。
5. Can you translate the sentences by using personification
Time and tide wait for no man.
The big fire swallowed the entire forest.
The wind blows and the flowers dance in the wind.
Structure of a descriptive exposition
Part 1
Introduction
Part 2 Body
Part 3
Conclusion
The introductory paragraph shows the thesis statement.
Focus on each separate point. Provide supporting examples and facts.
Conclusion is with a short summary of key points/a thesis statement.
Post-reading
1．Do you think it is useful for scientists to study plant communication (Critical thinking)
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.
Activity 1 Discussion
2．What discoveries are described in the two reading passages in this unit and what do their meanings have in common (Creative thinking)
Passage 1 reveals the discovery of evolution. Passage 2 reveals the discovery of communication between plants. They all reflect that there are numerous secrets in nature that remain to be explored.
Man and nature form a community of life. We, as human beings, must respect nature, follow its ways, and protect it.
人与自然是一个生命共同体。我们人类必须尊重自然、顺应自然、保护自然。
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. Most 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
Activity 2 Summary
1. Alexander the Great and Marco Polo were said to have visited such a
tree in India.
[句式分析] 此句为________句。中Sb./ Sth. is said to do...为____________________的变式,译为“_____________”,也可以这样表达:_____________ Alexander the Great and Marco Polo had visited such a tree in India.
[自主翻译]
It is said that sb./sth...
据说……
It was said that
Sentences Analysis:
简单
据说亚历山大大帝和马可·波罗曾在印度见过一棵会说话的树。
2. With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all.
[句式分析] 此句为_________句。句中With us long believing 为with 的______结构，其中that talking...为that 引导的____从句；主句为______________________________________；而it appears that plants can communicate after all为something amazing的_______，其中其中it为___________，真正的主语为that 引导的 _______从句。
[自主翻译]
复合
主从复合
宾语
new research has revealed something amazing
同位语
主语
形式主语
我们一直认为会说话的植物只存在于幻想之中，但新研究
有了令人惊奇的发现：植物间似乎确实可以交流。
3. It has been known for some time that plants use chemicals to
communicate with each other.
[句式分析] 此句为__________句, 其中that 引导的是______从句, it 作形式主语，It has been known that 译为“____________”。
[自主翻译]
主从复合
主语
众所周知
人们早就知道植物可以利用化学物质进行交流。
4. Some trees make clicking noises when there is not enough water,
indicating drought is arriving.
[句式分析] 此句为_________句，when引导的是____________从句，indicate与noises之间为_______关系，因此indicating drought is arriving为现在分词短语作________。
[自主翻译]
主从复合
时间状语
主动
状语
还有些树木在水分不足时会发出咔嗒声，以示干旱就要来了。
5. Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest.
[句式分析] 此句为__________句，主句为______, that 引导的是_______句子，修饰先行词system of communication，Most surprisingly of all在句中作_______。
[自主翻译]
主从复合
定语
状语
然而最令人惊奇的是，植物拥有一套神奇的信息交流系统，几乎可以连接起森林中所有的植物。
Give a talk about communication between living things.
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.
Homework
THANKS
Developing ideas
—Reading comprehension
The Secret Language of Plants
Unit 5 Revealing nature
By the end of this class, you will be able to：
1. get a better understanding of the ways in which plants communicate;
2. develop the ability to sort out the main idea of a paragraph and identify the structure of exposition;
3. develop a positive attitude of treasuring nature and living in harmony with nature.
CONTENTS
Pre-reading
I
While-reading
II
Post-reading
III
Sentences analysis
IV
Pre-reading
Enjoy a short video and think about what interesting facts can you get from this short video
For me, I found it definitely amazing that trees can communicate with people in Avatar!
What else do you think plants can do
Look at the pictures and tick what plants can do.
attack
breathe
eat
sleep
move
speak
steal
think
√
√
√
√
√
Let’s find out whether plants communicate with each other. If they do, how
Read the passage to explore!
While-reading
1. What’s the main idea of the text
A．Some ways in which plants communicate.
B．Talking plants are fantasy.
C．Plants can hear people’s sounds.
D．Plants have different languages.
√
Activity 1 Fast-reading for main ideas
C. Many cultures have stories of talking trees.
A. New research has revealed something amazing: it
appears that plants can communicate.
F. Plants use chemicals to communicate with each other.
E. Plants also use sound to communicate.
B. Plants have an amazing system of communication called “wood wide web”．
D. Scientists are learning more about the secret ways in which plants talk to each other.
2. Match the main idea of each paragraph.
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Para. 1
Part 1
Introduction
Part 2 Body
Part 3
Conclusion
Para. 1
Plants can communicate.(The thesis statement)
Plants have various ways to communicate.(chemicals, sound, wood wide web)
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Scientists are learning more about plants’ language(restate the thesis statement)
3. Analyze the structure of the passage.
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 stories of many cultures
Evidence from _________________
some modern stories
Trees in the film Avatar can communicate with
___________________.
animals and people
advice and warnings
Activity 2 Careful-reading for details
Paras. 1-2 (Introduction)
With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all.
1. 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(主旨句). It’s also a transitional paragraph.
the thesis statement
√
2. What is the main idea of the first two paragraphs
A. Marco Polo spent most of his time studying plants.
B. There are some legends about talking trees.
C. In the movie Avatar, trees can save people.
D. New research has revealed that plants appear to communicate.
√
chemicals
a bean plant
insects
another bean plant
different
chemicals
wasp
1. Finish the mind map
Para. 3 (Using chemical)
attack
release
detect
release
attract
drive
away
kill
2. Choose the best answer
(1) How does a bean plant act first when attacked by insects
A．It runs away.
B．It releases chemicals.
C．It calls for help.
D．It drives insects away.
(2) Why do scientists do research on this plant warning system
A．To explore the wonders of nature.
B．To protect plants.
C．To apply it to agriculture.
D．To predict the future of plants.
√
√
(3) What can we learn from Paragraph 3
A．Plants can release chemicals from the roots.
B．Plants can release chemicals when attacked.
C．Chemicals from some plants destroy the other plants.
D．Scientists find the method of growing crops without pesticides.
√
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
some trees
____________ with their roots
listen to the noises from ___________
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
1. Fill in the blanks
Para. 4 (Using sound)
Wood Wide Web
Para. 5 (Using “WWW”)
1. Let’s watch a video about “wood wide web”
2.Answer the following questions
(1)What does “wood wide web” mean
“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.
(2)What’s the function of “wood wide web”
Using the wood wide web, plants can share information and even food 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.
3. What is the function of “Most surprisingly of all”
It’s a mark: the following sentence will explore the same topic as what has been mentioned, yet developing the topic to a deeper, further degree than all that has been written before.
4. How’s “wood wide web” similar to the Internet
They are both systems of communication in essence(本质上), linked by fungi and cables and satellites respectively(分别地).
5．Which writing skills does the writer use in this paragraph
A．Providing examples.
B．Making a comparison.
C．Giving a definition.
D．All of the above.
√
What is the writer’s attitude towards the scientific research on the secret language of plants
A．Positive. B．Negative.
C．Neutral. D．Indifferent.
2. 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.
1. Do the following exercises
Para.6 Conclusion
√
The whole passage
1. What’s the type of the passage
A．Narration. B．Argumentation.
C．Descriptive exposition. D．News report.
2．Where is the passage most likely taken from
A．A guide book. B．A scientific magazine.
C．A fiction story. D．A news report.
√
√
√
3．What is the writer’s purpose in writing the passage
A．To introduce the ways plants communicate with each other.
B．To compare the differences between plants and humans.
C．To predict where technology will take plants.
D．To call on humans to protect the plants.
(1)Which figure of speech is being used in these sentences
(2)What is its function
1.Talking plants have long been a thing of myths and legends.
2.Many cultures have stories of talking trees that give advice as well as warnings to people.
3.This is like a warning, or a call for help: “I’m being attacked!” When another bean plant detects the chemicals from its injured neighbour, it starts to release its own, different chemicals.
4.Some of these chemicals drive insects away. Others attract insects—the wasps!
5.Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest.
6.They also “listen” to the noises from other plants. A chilli plant can tell if a neighbouring plant is helpful, or unfriendly.
4. Read for beautiful sentences
Personification.
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.
(1) 风吹过来，花儿在风中跳起了舞蹈。
(2) 大火吞没了整个森林。（swallow vt.吞没）
(3) 岁月不等人。
5. Can you translate the sentences by using personification
Time and tide wait for no man.
The big fire swallowed the entire forest.
The wind blows and the flowers dance in the wind.
Structure of a descriptive exposition
Part 1
Introduction
Part 2 Body
Part 3
Conclusion
The introductory paragraph shows the thesis statement.
Focus on each separate point. Provide supporting examples and facts.
Conclusion is with a short summary of key points/a thesis statement.
Post-reading
1．Do you think it is useful for scientists to study plant communication (Critical thinking)
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.
Activity 1 Discussion
2．What discoveries are described in the two reading passages in this unit and what do their meanings have in common (Creative thinking)
Passage 1 reveals the discovery of evolution. Passage 2 reveals the discovery of communication between plants. They all reflect that there are numerous secrets in nature that remain to be explored.
Man and nature form a community of life. We, as human beings, must respect nature, follow its ways, and protect it.
人与自然是一个生命共同体。我们人类必须尊重自然、顺应自然、保护自然。
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. Most 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
Activity 2 Summary
1. Alexander the Great and Marco Polo were said to have visited such a
tree in India.
[句式分析] 此句为________句。中Sb./ Sth. is said to do...为____________________的变式,译为“_____________”,也可以这样表达:_____________ Alexander the Great and Marco Polo had visited such a tree in India.
[自主翻译]
It is said that sb./sth...
据说……
It was said that
Sentences Analysis:
简单
据说亚历山大大帝和马可·波罗曾在印度见过一棵会说话的树。
2. With us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all.
[句式分析] 此句为_________句。句中With us long believing 为with 的______结构，其中that talking...为that 引导的____从句；主句为______________________________________；而it appears that plants can communicate after all为something amazing的_______，其中其中it为___________，真正的主语为that 引导的 _______从句。
[自主翻译]
复合
主从复合
宾语
new research has revealed something amazing
同位语
主语
形式主语
我们一直认为会说话的植物只存在于幻想之中，但新研究
有了令人惊奇的发现：植物间似乎确实可以交流。
3. It has been known for some time that plants use chemicals to
communicate with each other.
[句式分析] 此句为__________句, 其中that 引导的是______从句, it 作形式主语，It has been known that 译为“____________”。
[自主翻译]
主从复合
主语
众所周知
人们早就知道植物可以利用化学物质进行交流。
4. Some trees make clicking noises when there is not enough water,
indicating drought is arriving.
[句式分析] 此句为_________句，when引导的是____________从句，indicate与noises之间为_______关系，因此indicating drought is arriving为现在分词短语作________。
[自主翻译]
主从复合
时间状语
主动
状语
还有些树木在水分不足时会发出咔嗒声，以示干旱就要来了。
5. Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest.
[句式分析] 此句为__________句，主句为______, that 引导的是_______句子，修饰先行词system of communication，Most surprisingly of all在句中作_______。
[自主翻译]
主从复合
定语
状语
然而最令人惊奇的是，植物拥有一套神奇的信息交流系统，几乎可以连接起森林中所有的植物。
Give a talk about communication between living things.
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.
Homework
THANKS