Unit 6 Earth First Developing ideas 课件(共31张PPT，内镶嵌2视频)-2025-2026学年外研版（2019）必修第二册
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| 名称 | Unit 6 Earth First Developing ideas 课件(共31张PPT，内镶嵌2视频)-2025-2026学年外研版（2019）必修第二册 |  | |
| 格式 | pptx | ||
| 文件大小 | 78.0MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-06-21 00:13:47 | ||
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(共31张PPT)
Earth first
Developing ideas
What's really green
大观念视角下的单元整体学习
主题语境 “人与自然”——关爱地球、保护环境
正视环保问题
单元大观念：正视全球面临的环保问题，了解先进的环保理念，增强环保意识，践行绿色生活方式，树立共同关爱地球，保护环境，与自然和谐相处的价值观。
子主题
Period 1
Starting out & Vocabulary
感知环境问题；学习主题语块
把握主题，建立各语篇关联，形成大观念
Period 3
Using language: Grammar
关注海洋环境；聚焦人类活动
Period 4
Listening & Speaking
讨论雾霾污染；礼貌打断他人
增强环保意识
践行环保理念
Period 2
Understanding ideas
打破传统观念；重新认识鲨鱼
Period 5
Developing ideas
了解先进理念；真正绿色生活
Period 6
Writing
宣传光盘行动；环保共同参与
Period 7
Presenting ideas & Reflection
关注“碳足迹”;回顾单元内容
At the end of the class, you'll be able to:
distinguish some real green living truths from false ones;
understand the logic of causes-effects-measures in the context of a green lifestyle;
put what you’ve learnt today into daily practice to live a real green life.
Learning Objectives:
Watch & Brainstorm
Nature is speaking ...
What does she really want to say
Pay close attention to what she says. Try to take some notes.
Watch & Brainstorm
Nature is speaking ...
What does she really want to say
Pay close attention to what she says.
I don’t really need people, but people need me.
Yes, your future depends on me. When I thrive, you thrive. When I falter, you falter, or worse.
How you choose to live each day, whether you regard or disregard me, doesn’t really matter to me. Your actions will determine your fate, not mine. I am nature. I will go on. I am prepared to evolve. Are you
a rhetorical sentence
What can we do to ensure our survival
What should we do to live in harmony with nature
Live a green life
Look at the questions about “green living” and tick your answers.
Which shopping bag is more environmentally friendly
A plastic bag.
A paper bag.
Neither of these.
Look at the questions about “green living” and tick your answers.
2. What should you do to save energy when
leaving your home
Turn off a device.
Unplug a device.
Neither of these.
Look at the questions about “green living” and tick your answers.
3. What food is better for the environment
Food produced near to where you live.
Food produced far from where you live.
It depends.
Look at the questions about “green living” and tick your answers.
4. Which uses less water
Taking a bath.
Taking a shower.
It depends.
Think & Predict
What's green
What's really green
Look at the two titles and think out the differences between them and WHY the author uses “What's really green” instead of “What's green”.
Fast reading
Read the four subheadings in the passage and decide if they are true or false. Then read the passage and check your answers.
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.
False. Making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water. The process also produces more greenhouse gases.
In fact, both kinds of bags are bad for the environment. So, take a reusable bag with you when you go shopping.
Paper shopping bags are better than plastic ones.
When you turn off a device, it stops using power.
False. When we turn off a device, such as television, it goes into stand-by mode. Devices in this mode still use power, and older devices in stand-by mode can use even more.
To make sure your appliance is in fact off, remove the plug from its power supply.
Apart from the transport, we should take the production of food into account.
Eating local food is good for the environment.
False. In some cases, local produce might have used more energy and produced more greenhouse gases than produce grown a long way away — even taking into account its transport.
The key is to keep your shower time as short as possible.
It’s better to take a shower than a bath.
False. It depends on how long you spend in the shower and how large your bath is. If you spend more than eight minutes in a shower, you’ll use as much water as in a bath — about 50 litres of water.
Find out the purpose of the passage.
The purpose of the passage is________.
(find out original sentences 原文）
to introduce some common “green truths” that have been shown to be only half true, or even completely false.
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Read the passage again and draw the structure of the passage.
Introduction
Body
Conclusion
Green truth 1
Green truth 2
Green truth 3
Green truth 4
Careful-reading
Read the effects on page 70 and complete the causes(划出原文）.
CAUSES
EFFECTS
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.
2. Devices turned off go into stand-by mode and still use power.
Turning off a device won't stop it from using power.
CAUSES
EFFECTS
3. Local produce sometimes might use more energy and produce more greenhouse gases than produce grown a long way away--even taking into account its transport.
Eating local food isn't always better for the environment.
CAUSES
EFFECTS
4. If you spend more than eight minutes in a shower, you'll use as much water as in a bath--about 50 litres of water.
CAUSES
EFFECTS
It's not always better to take a shower than a bath.
Suggestions
Subheading 1
Subheading 2
Subheading 3
Subheading 4
To make sure your appliance is in fact off, remove the plug from its power supply.
The key is to keep your shower
time as short as possible.
Take a reusable bag with you when you go shopping.
No suggestions
Retell the passage based on four subheadings and some key words.
Green truth 1
time to break down; usages of energy and water; produce greenhouse gases
Paper shopping bags are better than plastic ones.
Green truth 2
stand-by mode; electricity continues to leak; remove the plug
When you turn off a device, it stops using power.
Green truth 3
transported long distances; kept cold; production of the food; energy and greenhouse gases
Eating local food is good for the environment.
Green truth 4
shower time; bath size; eight minutes; 50 litres
It's better to take a shower than a bath.
Think Share
Task 3
Paper bags are not good for the environment.
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.
P70
Which of the “green truth” surprises you most Give your reasons.
Q1
Brainstorm the ways of living a green life. Then deliver a speech to the class by introducing your ideas and what your group think you can do to go green.
Task
Post-reading
Homework
Write a short paragraph about
“What can we do to become a greener”
within 80 words.
We only have one planet.
Let’s take care of it.
Earth first
Developing ideas
What's really green
大观念视角下的单元整体学习
主题语境 “人与自然”——关爱地球、保护环境
正视环保问题
单元大观念：正视全球面临的环保问题，了解先进的环保理念，增强环保意识，践行绿色生活方式，树立共同关爱地球，保护环境，与自然和谐相处的价值观。
子主题
Period 1
Starting out & Vocabulary
感知环境问题；学习主题语块
把握主题，建立各语篇关联，形成大观念
Period 3
Using language: Grammar
关注海洋环境；聚焦人类活动
Period 4
Listening & Speaking
讨论雾霾污染；礼貌打断他人
增强环保意识
践行环保理念
Period 2
Understanding ideas
打破传统观念；重新认识鲨鱼
Period 5
Developing ideas
了解先进理念；真正绿色生活
Period 6
Writing
宣传光盘行动；环保共同参与
Period 7
Presenting ideas & Reflection
关注“碳足迹”;回顾单元内容
At the end of the class, you'll be able to:
distinguish some real green living truths from false ones;
understand the logic of causes-effects-measures in the context of a green lifestyle;
put what you’ve learnt today into daily practice to live a real green life.
Learning Objectives:
Watch & Brainstorm
Nature is speaking ...
What does she really want to say
Pay close attention to what she says. Try to take some notes.
Watch & Brainstorm
Nature is speaking ...
What does she really want to say
Pay close attention to what she says.
I don’t really need people, but people need me.
Yes, your future depends on me. When I thrive, you thrive. When I falter, you falter, or worse.
How you choose to live each day, whether you regard or disregard me, doesn’t really matter to me. Your actions will determine your fate, not mine. I am nature. I will go on. I am prepared to evolve. Are you
a rhetorical sentence
What can we do to ensure our survival
What should we do to live in harmony with nature
Live a green life
Look at the questions about “green living” and tick your answers.
Which shopping bag is more environmentally friendly
A plastic bag.
A paper bag.
Neither of these.
Look at the questions about “green living” and tick your answers.
2. What should you do to save energy when
leaving your home
Turn off a device.
Unplug a device.
Neither of these.
Look at the questions about “green living” and tick your answers.
3. What food is better for the environment
Food produced near to where you live.
Food produced far from where you live.
It depends.
Look at the questions about “green living” and tick your answers.
4. Which uses less water
Taking a bath.
Taking a shower.
It depends.
Think & Predict
What's green
What's really green
Look at the two titles and think out the differences between them and WHY the author uses “What's really green” instead of “What's green”.
Fast reading
Read the four subheadings in the passage and decide if they are true or false. Then read the passage and check your answers.
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.
False. Making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water. The process also produces more greenhouse gases.
In fact, both kinds of bags are bad for the environment. So, take a reusable bag with you when you go shopping.
Paper shopping bags are better than plastic ones.
When you turn off a device, it stops using power.
False. When we turn off a device, such as television, it goes into stand-by mode. Devices in this mode still use power, and older devices in stand-by mode can use even more.
To make sure your appliance is in fact off, remove the plug from its power supply.
Apart from the transport, we should take the production of food into account.
Eating local food is good for the environment.
False. In some cases, local produce might have used more energy and produced more greenhouse gases than produce grown a long way away — even taking into account its transport.
The key is to keep your shower time as short as possible.
It’s better to take a shower than a bath.
False. It depends on how long you spend in the shower and how large your bath is. If you spend more than eight minutes in a shower, you’ll use as much water as in a bath — about 50 litres of water.
Find out the purpose of the passage.
The purpose of the passage is________.
(find out original sentences 原文）
to introduce some common “green truths” that have been shown to be only half true, or even completely false.
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Read the passage again and draw the structure of the passage.
Introduction
Body
Conclusion
Green truth 1
Green truth 2
Green truth 3
Green truth 4
Careful-reading
Read the effects on page 70 and complete the causes(划出原文）.
CAUSES
EFFECTS
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.
2. Devices turned off go into stand-by mode and still use power.
Turning off a device won't stop it from using power.
CAUSES
EFFECTS
3. Local produce sometimes might use more energy and produce more greenhouse gases than produce grown a long way away--even taking into account its transport.
Eating local food isn't always better for the environment.
CAUSES
EFFECTS
4. If you spend more than eight minutes in a shower, you'll use as much water as in a bath--about 50 litres of water.
CAUSES
EFFECTS
It's not always better to take a shower than a bath.
Suggestions
Subheading 1
Subheading 2
Subheading 3
Subheading 4
To make sure your appliance is in fact off, remove the plug from its power supply.
The key is to keep your shower
time as short as possible.
Take a reusable bag with you when you go shopping.
No suggestions
Retell the passage based on four subheadings and some key words.
Green truth 1
time to break down; usages of energy and water; produce greenhouse gases
Paper shopping bags are better than plastic ones.
Green truth 2
stand-by mode; electricity continues to leak; remove the plug
When you turn off a device, it stops using power.
Green truth 3
transported long distances; kept cold; production of the food; energy and greenhouse gases
Eating local food is good for the environment.
Green truth 4
shower time; bath size; eight minutes; 50 litres
It's better to take a shower than a bath.
Think Share
Task 3
Paper bags are not good for the environment.
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.
P70
Which of the “green truth” surprises you most Give your reasons.
Q1
Brainstorm the ways of living a green life. Then deliver a speech to the class by introducing your ideas and what your group think you can do to go green.
Task
Post-reading
Homework
Write a short paragraph about
“What can we do to become a greener”
within 80 words.
We only have one planet.
Let’s take care of it.