外研版（2019）必修 第二册Unit 6 Earth first Developing ideas课件(共38张PPT)
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| 名称 | 外研版（2019）必修 第二册Unit 6 Earth first Developing ideas课件(共38张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 10.7MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-04-04 21:23:43 | ||
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(共38张PPT)
Developing ideas
—Reading comprehension
What’s really green
Unit 6 Earth first
By the end of this period, you will be able to:
get the main idea and have a general knowledge of what’s really green in our daily life;
learn the role and function of sub-titles and the structure of the passage;
distinguish some real green living truths from false ones;
understand the logic of causes-effects-measures in the context of a green lifestyle and the writing purpose of the author.
CONTENTS
I
Pre-reading
II
While-reading
III
Post-reading
IV
Sentences analysis
Pre-reading
Look at the questions about “green living” and tick your answers.
1. Which shopping bag is more environmentally friendly
□ A plastic bag.
□ A paper bag.
□ Neither of these.
2. What should you do to save energy when leaving your home
□ Turn off a device.
□ Unplug a device.
□ Neither of these.
n. 设备，仪器，装置
3. What food is better for the environment
□ Food produced near to where you live.
□ Food produced far from where you live.
□ It depends.
4. Which uses less water
□ Taking a bath.
□ Taking a shower.
□ It depends.
Now work in groups and see if other people share your ideas.
How well do you know your environmental health and green truths
Let’s read the passage to learn more about “what’s really green ”
While-reading
Activity 1 Fast- reading for basic information
Ⅰ. What’s the passage mainly about
A．We should raise the awareness of environmental protection.
B．We must take care of the environment.
C．Not all the “green truths” are really true.
D．The common ideas are false.
√
Ⅱ. The passage can be divided into three parts. Match the main idea with each part.
1．Part 1(Para.1) A．Introduction about some “green truths”．
2．Part 2(Paras.2－7) B．We should check to see what’s really green.
3．Part 3(Para.8) C．Four common “green truths” shown to us.
Ⅲ. Find the subheading in the passage.
Ⅳ. Decide if the four subheadings in the passage are true or false.
(1)Paper shopping bags are better than plastic ones.
(2)When you turn off a device, it stops using power.
(3)Eating local food is good for the environment.
(4)It’s better to take a shower than a bath.
False
False
It depends.
It depends.
Read the passage carefully to find out the real truth.
Activity 2 Careful- reading for details
Ⅰ.Read Para.1 and do the following exercise.
The purpose of the first paragraph is to ___________________.
What’s really “green” in this passage
Color. B. Inexperienced.
C. Environmental friendly. D. Young.
introduce the topic
√
=eco-friendly nature-friendly
environment-friendly environmentally friendly
Causes Effects Measures
Making a paper bag uses more __________ ______ than making a plastic bag. It also produces ___________ _________________. Paper bags are not good for the environment. Take ____________
with you when you go shopping.
Ⅱ.Read Paras.2－4 and choose the best answer.
1．Read the effects and complete the causes and measures of these according to this part.
energy and water
more greenhouse gases
a reusable bag
2． Which of the following is not the disadvantage of plastic bags
A．Causing litter.
B．Being treated as food by wild animals.
C．Taking much more time to break down.
D．Using much more energy to produce.
√
Ⅲ.Read Para.5 and choose the best answer.
1. Read the effects and complete the causes and measures of these according to this part.
Causes Effects Measures
Devices turned off go into ______________ and still use power. Turning off a device won’t stop it from using power. _______________
from its
power supply.
stand-by mode
Remove the plug
2. Which one is TRUE according to the fifth paragraph
A．Leaving a device in stand-by mode is environmentally friendly.
B．Older devices use less energy than new ones.
C．Removing the plug from power supply will stop using power.
D．Using electric devices as little as possible is the best way to save energy.
√
3. Why is the word “off” put into a quotation mark(双引号)
Because the appliance is not really off, and it goes into stand-by mode and still uses power.
This happens because electricity continues to leak from the device, even when it is turned “off”．
Ⅳ.Read Para.6 and do the following exercise.
1. Read the effects and complete the causes and measures of these according to this part.
Causes Effects Measures
Local produce sometimes might use ____________ and __________________ _______________. Eating local food isn’t always better for the environment. No suggestions.
more energy
produce more greenhouse gases
2. Why do people choose to eat local food
A．Because they think it’s convenient.
B．Because they think it doesn’t need transportation.
C．Because they think it uses more energy.
D．Because they think it is good for environment.
√
3. What food is better for the environment
A. Food produced near to where you live.
B. Food produced far from where you live.
C. Food needing to be kept cold during transport.
D. Food using less energy and producing less greenhouse gases.
√
Ⅴ.Read Para.7 and do the following exercise.
1. Read the effects and complete the causes and measures of these according to this part.
Causes Effects Measures
If you spend more than ______________in a shower, you’ll use as much water as in a bath. It’s not always better to take a shower than a bath. Keep your shower time as ______ as possible.
eight minutes
short
2. Whether taking a shower or taking a bath is greener，what does it depend on
A．The temperature.
B．The season.
C．The time.
D．The amount of water we use.
√
Ⅴ.Read Para.8 and do the following exercise.
Environmental awareness is now part of daily life. But it’s worth checking common ideas and opinions to see what's really green.
How do you understand this sentence above
Now we have had the awareness of being ____________ .
However, we still have a long way to go. We should learn to check and judge __________________ in order to live really green.
eco-friendly
What’s really green
Ⅵ.Read the whole passage again and do the following exercise.
1. How is this editorial mainly developed
A. By analyzing causes and effects.
B. By following the order of time.
C. By making comparisons.
D. By listing numbers.
√
2. Which of the following is NOT right about the functions of subheadings or subtitles
A. Subheadings expand on the main heading or title.
B. A subheading can be slightly longer than the main heading or title.
C. Every paragraph needs a subheading.
D. Subheadings can be skimmed to give the readers an overall understanding of the content of a text.
√
3. What is the purpose of the passage
A．To introduce some new ways to save energy.
B．To correct the false green truths and show really green ones.
C．To call on more people to protect the environment.
D．To explain the importance of energy saving.
√
Introduction
Body
Conclusion
Green truth 1
Green truth 2
Green truth 3
Green truth 4
4.What’s the structure of the text
Conclusion
(5)________________________________
Introduction
(1)__________
Body
Subheading 1
green truth 1
(2)___________________________
green truths
Subheading 2
check to see
green truth 2
(3)_____________________________
(4)______________________________
Subheading 3
green truth 3
Subheading 4
green truth 4
what’s really green
Post-reading
Activity 1 Discussion
1．Which of the “green truths” surprises you most Give your reasons.(Critical thinking)
When you turn off a device, it stops using power. Usually I just turn off my television before going out, thinking it is a safe and green way. I don’t know it’s still a waste of energy.
2．How do you become “greener”？(Creative thinking)
Use your own bags instead of a plastic bag.
Save water and energy.
Unplug the device when you are not using it.
Use public transport.
Join in trash plogging (垃圾捡跑活动).
Recycle your trash.
Start gardening.
Reuse bottles.
Use alternative energy, such as solar energy.
Activity 2 Summary
The majority of us take steps 1._______ (save) energy and reduce waste and pollution.But recently，some “green truths” have been shown to be only half true，or even 2.__________(complete) false.Here are some facts we should know.
First of all，paper shopping bags are not 3.______(good) than plastic ones.Because 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.So，take a 4.________(reuse) bag with you when you go shopping.
to save
completely
better
reusable
Secondly，when you turn off a device，it doesn’t stop 5._____(use) power.This happens 6._______ electricity continues to leak from the device.The proper way is to remove the plug 7.____ its power supply.
Thirdly，eating local food isn’t better for the environment because the production uses most of the energy.
Lastly,8._______ it’s better to take a shower or a bath 9._______(depend) on the amount of water we use.
So it’s worth checking common ideas and 10.________(opinion) to see what’s really green.
using
because
from
whether
depends
opinions
1．Most of us are aware that we must take care of the environment，and the majority of us take steps to save energy and reduce waste and pollution.
[句式分析] 本句是一个and连接的________句。第一个分句为____句；第二个分句为____句， take steps to do sth意为“______________”，同义短语还有________________________。
[自主翻译]
Sentences analysis
并列复合
复合
简单
采取措施做某事
take action/measures to do sth
我们大部分人都意识到要保护环境，也采取了各种行动节约能源，减少浪费和污染。
2．It takes hundreds of years for plastic to break down，but much less time for paper.
[句式分析] 本句是一个but连接的______。but前面的分句使用了句式“__________________________”，It是________，真正的主语为后面的_______________；but后面的句子是个____句。
[自主翻译]
并列句
It takes some time to do sth
形式主语
to break down
省略
塑料需要数百年才能分解，而纸的降解时间要短得多。
3．This happens because electricity continues to leak from the device，even when it is turned “off”．
[句式分析] 本句为____句。句子主干为___________________；because引导________从句；when引导_________从句。
[自主翻译]
复合
This happens
原因状语
时间状语
这是因为电器即使已经被“关掉”了，却依然有电流从电器中流失。
Voice your opinions about the significance of this passage(Critical thinking)
Care for the earth and protect the environment.
We should keep a critical attitude towards green truths, and it’s worth checking the truth and falsity of green truths in our life.
Starting from the small things around us, everyone can become a real “greener”.
Review what we have learnt and preview language points.
Homework
Developing ideas
—Reading comprehension
What’s really green
Unit 6 Earth first
By the end of this period, you will be able to:
get the main idea and have a general knowledge of what’s really green in our daily life;
learn the role and function of sub-titles and the structure of the passage;
distinguish some real green living truths from false ones;
understand the logic of causes-effects-measures in the context of a green lifestyle and the writing purpose of the author.
CONTENTS
I
Pre-reading
II
While-reading
III
Post-reading
IV
Sentences analysis
Pre-reading
Look at the questions about “green living” and tick your answers.
1. Which shopping bag is more environmentally friendly
□ A plastic bag.
□ A paper bag.
□ Neither of these.
2. What should you do to save energy when leaving your home
□ Turn off a device.
□ Unplug a device.
□ Neither of these.
n. 设备，仪器，装置
3. What food is better for the environment
□ Food produced near to where you live.
□ Food produced far from where you live.
□ It depends.
4. Which uses less water
□ Taking a bath.
□ Taking a shower.
□ It depends.
Now work in groups and see if other people share your ideas.
How well do you know your environmental health and green truths
Let’s read the passage to learn more about “what’s really green ”
While-reading
Activity 1 Fast- reading for basic information
Ⅰ. What’s the passage mainly about
A．We should raise the awareness of environmental protection.
B．We must take care of the environment.
C．Not all the “green truths” are really true.
D．The common ideas are false.
√
Ⅱ. The passage can be divided into three parts. Match the main idea with each part.
1．Part 1(Para.1) A．Introduction about some “green truths”．
2．Part 2(Paras.2－7) B．We should check to see what’s really green.
3．Part 3(Para.8) C．Four common “green truths” shown to us.
Ⅲ. Find the subheading in the passage.
Ⅳ. Decide if the four subheadings in the passage are true or false.
(1)Paper shopping bags are better than plastic ones.
(2)When you turn off a device, it stops using power.
(3)Eating local food is good for the environment.
(4)It’s better to take a shower than a bath.
False
False
It depends.
It depends.
Read the passage carefully to find out the real truth.
Activity 2 Careful- reading for details
Ⅰ.Read Para.1 and do the following exercise.
The purpose of the first paragraph is to ___________________.
What’s really “green” in this passage
Color. B. Inexperienced.
C. Environmental friendly. D. Young.
introduce the topic
√
=eco-friendly nature-friendly
environment-friendly environmentally friendly
Causes Effects Measures
Making a paper bag uses more __________ ______ than making a plastic bag. It also produces ___________ _________________. Paper bags are not good for the environment. Take ____________
with you when you go shopping.
Ⅱ.Read Paras.2－4 and choose the best answer.
1．Read the effects and complete the causes and measures of these according to this part.
energy and water
more greenhouse gases
a reusable bag
2． Which of the following is not the disadvantage of plastic bags
A．Causing litter.
B．Being treated as food by wild animals.
C．Taking much more time to break down.
D．Using much more energy to produce.
√
Ⅲ.Read Para.5 and choose the best answer.
1. Read the effects and complete the causes and measures of these according to this part.
Causes Effects Measures
Devices turned off go into ______________ and still use power. Turning off a device won’t stop it from using power. _______________
from its
power supply.
stand-by mode
Remove the plug
2. Which one is TRUE according to the fifth paragraph
A．Leaving a device in stand-by mode is environmentally friendly.
B．Older devices use less energy than new ones.
C．Removing the plug from power supply will stop using power.
D．Using electric devices as little as possible is the best way to save energy.
√
3. Why is the word “off” put into a quotation mark(双引号)
Because the appliance is not really off, and it goes into stand-by mode and still uses power.
This happens because electricity continues to leak from the device, even when it is turned “off”．
Ⅳ.Read Para.6 and do the following exercise.
1. Read the effects and complete the causes and measures of these according to this part.
Causes Effects Measures
Local produce sometimes might use ____________ and __________________ _______________. Eating local food isn’t always better for the environment. No suggestions.
more energy
produce more greenhouse gases
2. Why do people choose to eat local food
A．Because they think it’s convenient.
B．Because they think it doesn’t need transportation.
C．Because they think it uses more energy.
D．Because they think it is good for environment.
√
3. What food is better for the environment
A. Food produced near to where you live.
B. Food produced far from where you live.
C. Food needing to be kept cold during transport.
D. Food using less energy and producing less greenhouse gases.
√
Ⅴ.Read Para.7 and do the following exercise.
1. Read the effects and complete the causes and measures of these according to this part.
Causes Effects Measures
If you spend more than ______________in a shower, you’ll use as much water as in a bath. It’s not always better to take a shower than a bath. Keep your shower time as ______ as possible.
eight minutes
short
2. Whether taking a shower or taking a bath is greener，what does it depend on
A．The temperature.
B．The season.
C．The time.
D．The amount of water we use.
√
Ⅴ.Read Para.8 and do the following exercise.
Environmental awareness is now part of daily life. But it’s worth checking common ideas and opinions to see what's really green.
How do you understand this sentence above
Now we have had the awareness of being ____________ .
However, we still have a long way to go. We should learn to check and judge __________________ in order to live really green.
eco-friendly
What’s really green
Ⅵ.Read the whole passage again and do the following exercise.
1. How is this editorial mainly developed
A. By analyzing causes and effects.
B. By following the order of time.
C. By making comparisons.
D. By listing numbers.
√
2. Which of the following is NOT right about the functions of subheadings or subtitles
A. Subheadings expand on the main heading or title.
B. A subheading can be slightly longer than the main heading or title.
C. Every paragraph needs a subheading.
D. Subheadings can be skimmed to give the readers an overall understanding of the content of a text.
√
3. What is the purpose of the passage
A．To introduce some new ways to save energy.
B．To correct the false green truths and show really green ones.
C．To call on more people to protect the environment.
D．To explain the importance of energy saving.
√
Introduction
Body
Conclusion
Green truth 1
Green truth 2
Green truth 3
Green truth 4
4.What’s the structure of the text
Conclusion
(5)________________________________
Introduction
(1)__________
Body
Subheading 1
green truth 1
(2)___________________________
green truths
Subheading 2
check to see
green truth 2
(3)_____________________________
(4)______________________________
Subheading 3
green truth 3
Subheading 4
green truth 4
what’s really green
Post-reading
Activity 1 Discussion
1．Which of the “green truths” surprises you most Give your reasons.(Critical thinking)
When you turn off a device, it stops using power. Usually I just turn off my television before going out, thinking it is a safe and green way. I don’t know it’s still a waste of energy.
2．How do you become “greener”？(Creative thinking)
Use your own bags instead of a plastic bag.
Save water and energy.
Unplug the device when you are not using it.
Use public transport.
Join in trash plogging (垃圾捡跑活动).
Recycle your trash.
Start gardening.
Reuse bottles.
Use alternative energy, such as solar energy.
Activity 2 Summary
The majority of us take steps 1._______ (save) energy and reduce waste and pollution.But recently，some “green truths” have been shown to be only half true，or even 2.__________(complete) false.Here are some facts we should know.
First of all，paper shopping bags are not 3.______(good) than plastic ones.Because 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.So，take a 4.________(reuse) bag with you when you go shopping.
to save
completely
better
reusable
Secondly，when you turn off a device，it doesn’t stop 5._____(use) power.This happens 6._______ electricity continues to leak from the device.The proper way is to remove the plug 7.____ its power supply.
Thirdly，eating local food isn’t better for the environment because the production uses most of the energy.
Lastly,8._______ it’s better to take a shower or a bath 9._______(depend) on the amount of water we use.
So it’s worth checking common ideas and 10.________(opinion) to see what’s really green.
using
because
from
whether
depends
opinions
1．Most of us are aware that we must take care of the environment，and the majority of us take steps to save energy and reduce waste and pollution.
[句式分析] 本句是一个and连接的________句。第一个分句为____句；第二个分句为____句， take steps to do sth意为“______________”，同义短语还有________________________。
[自主翻译]
Sentences analysis
并列复合
复合
简单
采取措施做某事
take action/measures to do sth
我们大部分人都意识到要保护环境，也采取了各种行动节约能源，减少浪费和污染。
2．It takes hundreds of years for plastic to break down，but much less time for paper.
[句式分析] 本句是一个but连接的______。but前面的分句使用了句式“__________________________”，It是________，真正的主语为后面的_______________；but后面的句子是个____句。
[自主翻译]
并列句
It takes some time to do sth
形式主语
to break down
省略
塑料需要数百年才能分解，而纸的降解时间要短得多。
3．This happens because electricity continues to leak from the device，even when it is turned “off”．
[句式分析] 本句为____句。句子主干为___________________；because引导________从句；when引导_________从句。
[自主翻译]
复合
This happens
原因状语
时间状语
这是因为电器即使已经被“关掉”了，却依然有电流从电器中流失。
Voice your opinions about the significance of this passage(Critical thinking)
Care for the earth and protect the environment.
We should keep a critical attitude towards green truths, and it’s worth checking the truth and falsity of green truths in our life.
Starting from the small things around us, everyone can become a real “greener”.
Review what we have learnt and preview language points.
Homework