外研版（2019）必修第二册 Unit 6 Earth first What's really green？课件（共25张）
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| 名称 | 外研版（2019）必修第二册 Unit 6 Earth first What's really green？课件（共25张） |
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| 格式 | pptx | ||
| 文件大小 | 1.1MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2026-03-02 00:00:00 | ||
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文档简介
(共25张PPT)
Unit6 Developing ideas
What’s really green？
01 Teaching objectives
1. To infer the general idea of the article.
2. To understand the meaning of subheadings through task guidance.
1 Reading skill point
3 Difficult point
2 Key point
To understand the true green life concepts and the environmental awareness.
To improve their lifestyle through understanding the green truths in daily life .
Lead-in
Pre-reading
Summary & Homework
While-reading
02 Teaching procedures
Lead-in
★Watch and answer ★
1. Who makes the speech
2. Which sentence impresses you a lot
3. What does the video want to tell us
★Watch and answer ★
1. Who makes the speech
2. Which sentence impresses you a lot
◇Nature doesn’t need people. People need
nature.
3. What does the video want to tell us
If nature isn’t kept healthy, humans won’t
survive.
Activity1. Reading Test(5 mins)
When John Todd was a child, he loved to explore the woods around his house, observing how nature solved problems. A dirty stream, for example, often became clear after flowing through plants and along rocks where tiny creatures lived. When he got older, John started to wonder if this process could be used to clean up the messes people were making.
After studying agriculture, medicine, and fisheries in college, John went back to observing nature and asking questions. Why can certain plants trap harmful bacteria (细菌) Which kinds of fish can eat cancer-causing chemicals With the right combination of animals and plants, he figured, maybe he could clean up waste the way nature did. He decided to build what he would later call an eco-machine.
The task John set for himself was to remove harmful substances from some sludge (污泥). First, he constructed a series of clear fiberglass tanks connected to each other. Then he went around to local ponds and streams and brought back some plants and animals. He placed them in the tanks and waited. Little by little, these different kinds of life got used to one another and formed their own ecosystem. After a few weeks, John added the sludge.
He was amazed at the results. The plants and animals in the eco-machine took the sludge as food and began to eat it! Within weeks, it had all been digested, and all that was left was pure water.
Over the years, John has taken on many big jobs. He developed a greenhouse-like facility that treated sewage (污水) from 1,600 homes in South Burlington. He also designed an eco-machine to clean canal water in Fuzhou, a city in southeast China.
“Ecological design” is the name John gives to what he does. “Life on Earth is kind of a box of spare parts for the inventor,” he says. “You put organisms in new relationships and observe what’s happening. Then you let these new systems develop their own ways to self-repair.”
1. What can we learn about John from the first two paragraphs
A. He was fond of traveling. B. He enjoyed being alone.
C. He had an inquiring mind. D. He longed to be a doctor.
2. Why did John put the sludge into the tanks
A. To feed the animals. B. To build an ecosystem.
C. To protect the plants. D. To test the eco-machine.
3. What is the author’s purpose in mentioning Fuzhou
A. To review John’s research plans. B. To show an application of John’s idea.
C. To compare John’s different jobs. D. To erase doubts about John’s invention.
4. What is the basis for John’s work
A. Nature can repair itself. B. Organisms need water to survive.
C. Life on Earth is diverse. D. Most tiny creatures live in groups.
1 recorder
2 Presenters
2 Words Checkers
1 Leader
TeamWork（6 Ss）
Sharing time
Keys:
1-4 CDBA
Words：
explore 探索
observe观察
creature生物
agriculture农业
ecosystem生态系统
eco-machine生态机器
digest消化
self-repair自我修复
Phrases：
remove…from…从…移除
a series of一系列
be amazed at对…惊讶
take on喜欢
Pre-reading
subheading 副标题；小标题
Activity2. Make a judgement according to your experience.
While-reading
Activity3. Fast reading.
What is the structure of the passage
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Paper bags or bags
Take a or a bath
01
02
Turn a device
03
Eating food
04
plastic
off
local
shower
Activity3. Fast reading.
What's the main idea of the passage
It discusses some common ___________ which have been shown to be only________ or even completely_______.
green truths
half true
false
Activity4. Careful reading.
1.According to green truth, what should we take when shopping
A．a plastic bag B．a paper bag
C．a reusable bag D．a cheap bag
√
2. What should you do to save energy when leaving your home
A. Turn off a device.
B. Use older device.
C. Unplug a device.
D. None of these.
Activity4. Careful reading.
√
3．Why do people prefer to eat local food
A．Because it can save the energy used to transport.
B．Because it tastes better than the food transported
long away.
C．Because its production uses less energy.
D．Because it produces less greenhouse gas.
Activity4. Careful reading.
√
4．According to the passage, when should you take a shower
A．Anytime you like.
B．When you spend less than 8 minutes in a shower.
C．When your bath is quite large.
D．When you use about 50 litres of water.
Activity4. Careful reading.
√
Summary&Homework
Activity5. Summary
Paper shopping bags are better than plastic ones.
When you turn off a device, it stops using power.
Eating local food is good for the environment.
It's better to take a shower than a bath.
half true
completely false
1.Read again and match .
√
Activity5. Summary
2．Why does the writer write the passage
A．He wants to introduce some new ways to save energy.
B．He wants to correct the false green truths and show
really green ones.
C．He wants to call on more people to protect the
environment.
D．He wants to explain the importance of energy saving.
Activity6. Homework.
1. Read the effects and complete the causes and measures mind-map according to the passage.
1. Making a paper bag uses more energy and water than making a plastic bag. It also produces more greenhouse gases.
Paper bags are not good for the environment.
CAUSES
EFFECTS
MEASURES
Take a reusable bag with you when you go shopping.
Turning off a device won't stop it from using power.
Eating local food isn't always better for the environment.
It’s not always better to take a shower than a bath.
Activity6. Homework.
假如你是晨光中学的李华，得知“亚洲青年环保论坛”(Asian Youth Environmental Forum)即将在下月举行，你想参加该活动。根据论坛要求，要求参加选手必须介绍你参加过的一项环保活动情况。请根据下面的要求写一封申请信。
1.曾经参加过的环保活动的介绍(目的、内容、意义。)。
2.你参加该活动的优势，及期望。
注意: 1.词数不少于100词。2.结合本课内容要点，可适当调整。
Dear Mr/Ms,
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours sincerely,
Lihua.
03 Check objectives
Have got the idea of this passage
Can make correct judgments on “green truth”
Will lead them an environment friendly lifestyle
√
√
√
Thanks for your listening!
Unit6 Developing ideas
What’s really green？
01 Teaching objectives
1. To infer the general idea of the article.
2. To understand the meaning of subheadings through task guidance.
1 Reading skill point
3 Difficult point
2 Key point
To understand the true green life concepts and the environmental awareness.
To improve their lifestyle through understanding the green truths in daily life .
Lead-in
Pre-reading
Summary & Homework
While-reading
02 Teaching procedures
Lead-in
★Watch and answer ★
1. Who makes the speech
2. Which sentence impresses you a lot
3. What does the video want to tell us
★Watch and answer ★
1. Who makes the speech
2. Which sentence impresses you a lot
◇Nature doesn’t need people. People need
nature.
3. What does the video want to tell us
If nature isn’t kept healthy, humans won’t
survive.
Activity1. Reading Test(5 mins)
When John Todd was a child, he loved to explore the woods around his house, observing how nature solved problems. A dirty stream, for example, often became clear after flowing through plants and along rocks where tiny creatures lived. When he got older, John started to wonder if this process could be used to clean up the messes people were making.
After studying agriculture, medicine, and fisheries in college, John went back to observing nature and asking questions. Why can certain plants trap harmful bacteria (细菌) Which kinds of fish can eat cancer-causing chemicals With the right combination of animals and plants, he figured, maybe he could clean up waste the way nature did. He decided to build what he would later call an eco-machine.
The task John set for himself was to remove harmful substances from some sludge (污泥). First, he constructed a series of clear fiberglass tanks connected to each other. Then he went around to local ponds and streams and brought back some plants and animals. He placed them in the tanks and waited. Little by little, these different kinds of life got used to one another and formed their own ecosystem. After a few weeks, John added the sludge.
He was amazed at the results. The plants and animals in the eco-machine took the sludge as food and began to eat it! Within weeks, it had all been digested, and all that was left was pure water.
Over the years, John has taken on many big jobs. He developed a greenhouse-like facility that treated sewage (污水) from 1,600 homes in South Burlington. He also designed an eco-machine to clean canal water in Fuzhou, a city in southeast China.
“Ecological design” is the name John gives to what he does. “Life on Earth is kind of a box of spare parts for the inventor,” he says. “You put organisms in new relationships and observe what’s happening. Then you let these new systems develop their own ways to self-repair.”
1. What can we learn about John from the first two paragraphs
A. He was fond of traveling. B. He enjoyed being alone.
C. He had an inquiring mind. D. He longed to be a doctor.
2. Why did John put the sludge into the tanks
A. To feed the animals. B. To build an ecosystem.
C. To protect the plants. D. To test the eco-machine.
3. What is the author’s purpose in mentioning Fuzhou
A. To review John’s research plans. B. To show an application of John’s idea.
C. To compare John’s different jobs. D. To erase doubts about John’s invention.
4. What is the basis for John’s work
A. Nature can repair itself. B. Organisms need water to survive.
C. Life on Earth is diverse. D. Most tiny creatures live in groups.
1 recorder
2 Presenters
2 Words Checkers
1 Leader
TeamWork（6 Ss）
Sharing time
Keys:
1-4 CDBA
Words：
explore 探索
observe观察
creature生物
agriculture农业
ecosystem生态系统
eco-machine生态机器
digest消化
self-repair自我修复
Phrases：
remove…from…从…移除
a series of一系列
be amazed at对…惊讶
take on喜欢
Pre-reading
subheading 副标题；小标题
Activity2. Make a judgement according to your experience.
While-reading
Activity3. Fast reading.
What is the structure of the passage
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Paper bags or bags
Take a or a bath
01
02
Turn a device
03
Eating food
04
plastic
off
local
shower
Activity3. Fast reading.
What's the main idea of the passage
It discusses some common ___________ which have been shown to be only________ or even completely_______.
green truths
half true
false
Activity4. Careful reading.
1.According to green truth, what should we take when shopping
A．a plastic bag B．a paper bag
C．a reusable bag D．a cheap bag
√
2. What should you do to save energy when leaving your home
A. Turn off a device.
B. Use older device.
C. Unplug a device.
D. None of these.
Activity4. Careful reading.
√
3．Why do people prefer to eat local food
A．Because it can save the energy used to transport.
B．Because it tastes better than the food transported
long away.
C．Because its production uses less energy.
D．Because it produces less greenhouse gas.
Activity4. Careful reading.
√
4．According to the passage, when should you take a shower
A．Anytime you like.
B．When you spend less than 8 minutes in a shower.
C．When your bath is quite large.
D．When you use about 50 litres of water.
Activity4. Careful reading.
√
Summary&Homework
Activity5. Summary
Paper shopping bags are better than plastic ones.
When you turn off a device, it stops using power.
Eating local food is good for the environment.
It's better to take a shower than a bath.
half true
completely false
1.Read again and match .
√
Activity5. Summary
2．Why does the writer write the passage
A．He wants to introduce some new ways to save energy.
B．He wants to correct the false green truths and show
really green ones.
C．He wants to call on more people to protect the
environment.
D．He wants to explain the importance of energy saving.
Activity6. Homework.
1. Read the effects and complete the causes and measures mind-map according to the passage.
1. Making a paper bag uses more energy and water than making a plastic bag. It also produces more greenhouse gases.
Paper bags are not good for the environment.
CAUSES
EFFECTS
MEASURES
Take a reusable bag with you when you go shopping.
Turning off a device won't stop it from using power.
Eating local food isn't always better for the environment.
It’s not always better to take a shower than a bath.
Activity6. Homework.
假如你是晨光中学的李华，得知“亚洲青年环保论坛”(Asian Youth Environmental Forum)即将在下月举行，你想参加该活动。根据论坛要求，要求参加选手必须介绍你参加过的一项环保活动情况。请根据下面的要求写一封申请信。
1.曾经参加过的环保活动的介绍(目的、内容、意义。)。
2.你参加该活动的优势，及期望。
注意: 1.词数不少于100词。2.结合本课内容要点，可适当调整。
Dear Mr/Ms,
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours sincerely,
Lihua.
03 Check objectives
Have got the idea of this passage
Can make correct judgments on “green truth”
Will lead them an environment friendly lifestyle
√
√
√
Thanks for your listening!