外研版（2019）选择性必修第二册Unit 6 Survival Developing ideas课件（共46张，内嵌音视频）
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| 名称 | 外研版（2019）选择性必修第二册Unit 6 Survival Developing ideas课件（共46张，内嵌音视频） |  | |
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| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-11-24 15:04:28 | ||
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(共46张PPT)
Unit 6 Developing ideas
What’s really green
哪些才是真正的环保做法？
阅读课件
To understand some common misunderstandings about environmental protection in our life through reading and hold a critical attitude towards the so-called “green truths”.
To use logical thinking and critical thinking to sort out and judge the common views on environmental protection in life.
To understand the logic of causes-effects-measures in the context of a green lifestyle.
To hold a doubtful attitude towards some common sense.
Learning objectives
Words and expressions
UNIT 6
majority n.多数，大多数(人或物) 90
□ false adj.不正确的，错误的 90
amount n.数量，数额 91
□ device n.设备，仪器，装置 91
* stand-by adj.备用的 91
□ mode n.(机器、设备的)运行方式，状态，模式 91
electricity n.电 91
□ leak v.(使)漏,(使)渗漏 91
* appliance n.家用电器，家用器具 91
remove v.移走，搬走，去掉 91
□ plug n.(电)插头 91
take... into account把……考虑进去 91
* litre n.升，公升 92
□ campaign n.(宣传)活动 94
□ urge v.竭力主张，强烈要求，敦促 94
□ canteen n.(工厂、学校等的)食堂，餐厅
94
concerned adj.焦急的，担忧的 95
contribute v.促成，造成(某事发生) 96
average adj.平均(数)的 96
Watch the video：Environmental protection
1.Do you support “green living”
2.How to protect environment in our daily lives
Watch and think
Lead-in
1. Which shopping bag is more environmentally friendly
□ A plastic塑料的 bag.
□ A paper bag.
□ Neither of these.
Look at the questions about “green living” and tick your answers.
1
2. What should you do to save energy when leaving your home
□ Turn off a device.
□ Unplug a device.
□ Neither of these.
拔掉……的电源插头
plug n. (电)插头
v. 用插头接通电源
关掉
turn on
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.
学习小窍门
由于副标题拓展主题或标题含义，通常比主题稍长一些。尽管并非每个段落都需要副标题，它完全可以被跳读过去给读者提供一个对全文内容的整体理解。
Look at the title, subtitles and pictures. Predict the main idea of this passage.
Pre-reading
Read the passage and check the prediction.
It discusses some common _________ which have been shown to be only________ or even completely__________
green truths
false
half true
(the 1st and the last paragraph)
While-reading
Subheading 1 Paper shopping bags are better than plastic ones.
Subheading 2 When you turn off a device, it stops using power.
Subheading 3 Eating local food is good for the environment.
Subheading 4 It's better to take a shower than a bath.
F
F
It depends.
It depends.
Read the four subheadings in the passage and decide if they are true or false.Then read the passage and check your answers.
2
What is the function of the red parts
subheadings/subtitles
main heading/title
expand on: give more information or details
Q1 How many parts can you divide the passage into
Part 1
Part 2
Part 3
Q2 What’s the main idea of each part
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Introduction
green
truth 1
Part 1: Introduction
Part 2: Body
Part 3: Conclusion
Q1 Do you think they are True Half True or Completely False
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.
？
Completely FALSE
Completely FALSE
HALF TRUE
HALF TRUE
？
？
？
Common sense:
Ideas that most people believe is right.
Careful reading
Q2 Why do you think these common senses are not true (reasons)
Q3 According to the reasons, what conclusions can you draw (results)
Reasons
Results
p
Paper shopping bags are better than plastic ones
Completely FALSE
Making a paper bag uses more energy and water.
It also produces more greenhouse gases.
Paper bags are not good for the environment.
Careful reading
Devices turned “off ” go into stand-by mode and still use power.
Electricity continues to leak from the device.
p
When you turn off a device, it stops using power.
Completely FALSE
Turning off a device won’t stop it from using power.
Remove the plug from its power supply.
a mode that maintains some functions and is ready to restart at any time
Careful reading
p
Eating local food is good for the environment.
HALF TRUE
It is the production of food, not its transport, that uses most of the energy and produces most of the greenhouse gases.
Eating local food isn’t always better for the environment.
Eat seasonal local food.
Careful reading
p
It’s better to take a shower than a bath.
HALF TRUE
If you spend more than eight minutes 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 short as possible.
Careful reading
√
√
√
√
Careful reading
“3Rs”
Q1 What else can you do to become a “greener”
Reuse
Reduce
Recycle
what you need
what you have/consume
what you can’t reduce or reuse
Careful reading
Q2 Why there are so many question marks in the passage
Doubtful attitude
Careful reading
3
Read the effects and complete the causes of these according to the passage.
Careful reading
这是有关环保常识的因果训练题，根据课文，仔细考虑这些因果关系。
提示：这里的2, 3, 4题的causes 分别出现在课文的问号下的5, 6, 7自然段中。
Thinking
Time
According to this passage, we have learned that not all “green truths” are true. It's worth checking common ideas and opinions to see what's really green. Only in this way can we better protect the environment and live a green life.
Careful reading
课文思维导图
Introduction
Body
Conclusion
green truth 1
green truth 2
green truth 3
green truth 4
Para 1
Para 2---7
Para 8
Paper bags are not good for the environment.
Turning off a device won’t stop it from using power.
Eating local food isn’t better for environment.
It’s not always better to take a shower than a bath.
语篇理解
Read the text and choose the best answer:
1. Why does the writer write the passage
A. He wants to introduce some new ways to save energy.
B. He wants to correct the faslse 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.
2. In the following, which one 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.
B
D
Careful reading
语篇理解
3. Why do people prefer to each 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.
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.
A
B
Careful reading
Devices turned off go into stand-by mode and still use power.
Local produce might use more energy and produce more green-house gases.
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.
3
Read the effects and complete the causes of these according to the passage.
Careful reading
1 Which of the “green truths” surprises you most Give your reasons.
2 Are you aware of any other “green truths” that are not true Share them with the class.
Think and Share
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.
I once thought we should turn off the light as soon as possible. In fact, if we are using the LED bulbs, it isn't favourale for power saving. This is because the instant high voltage（高电压） is twice than the usual voltage. Each usual turn-on-off action is equal to the power we keep the LED on for ten hours constantly!
Post-reading
3 How “green” are you Share your “green actions” with the class.
4 What can you do to become “greener”
I usually try to save energy and water in my daily life. For example，I always turn off the lights when I leave a room. I walk or ride a bike instead of taking a bus or a taxi. I take a cloth bag when I
go shopping .……
Turn off the lights and remove the plugs of electric devices when I go out or don’t use them; Give the old clothes to others to reuse them; Take a cloth bag or shopping basket instead of plastic bags when shopping …
Post-reading
Think and Share
Most of us are _______(awareness) that we must take care of the environment, and the mojority of us take steps _________(save) energy and reduce waste and pollution. But in fact, some long-held common sense turns out only half true, or even ____________(complete) false. For example, people think paper bags are _______(good) than plastic bags as they are easier to break down than the plastic _____(one). The process of making paper bags, _________, is more energy consuming and water wasting. So, take a reusable bag with you when shopping. Besides, remove the plug from its power supply, _________ the stand-by mode still use power. Eating local food isn't necessarily good for the environment, even taking transportation ______ account. Some take it for granted ______ a shower consumes less water than a bath. But that depends ____ how long you spend in a shower. The best policy is to keep your shower as short as possible.
_______________(environment) awareness is now part of daily life. But it's worth _________(check) common ideas and opinions to see what's really green.
aware
to save
completely
better
ones
however
because
into
that
on
Environmental
checking
Summary
How to become a “greener”
Work in groups. Give a talk about one of the “green truths” in the passage.
1 Use these questions to help plan your talk.
Which “green truth” are you going to talk about
Why do people believe it is “green”
Why is it not completely true
What can you do to become “greener”
2 Organise your talk following the steps below.
Start your talk by stating the topic.
Describe your chosen “green truth” in more detail.
Explain why it is not completely “green”.
End your talk by encouraging your audience to become “greener”.
3 Give your talk to the class.
4
Sample
Today I would like to talk about if paper shopping bags are better than plastic bags.
It’s widely acknowledged that plastic bags cause litter and are a danger to wild animals. It takes hundreds of years for plastic bags to break down. Therefore, plastic bags do harm to the environment. Because of this, some people think paper bags are better than plastic ones. But that is not true.
Making paper bags uses much more energy and water. It also produces more green house gases. So we come to the conclusion that paper bags are not environmentally friendly, either.
Since both of the above are not good for the environment, what's really green I suggest taking a reusable bag with you when shopping. It is really green. Starting from the small things around us, everyone can become a real "greener".
Writing a persuasive letter
Read the letter and answer the questions.
1.What is the purpose of the letter
2.What is the existing problem
3.What are the proposed actions from Class 8
5
Dear Friends,
We are writing this letter to call on everyone to take part in the Clear Your Plate campaign. It urges people to save food by not wasting anything on the dining table.You may not know over 30% of the world's food is wasted, while many people in poor areas do not have enough to eat. In order to save food,we propose:
1 Do not order more than you need in the school canteen.
2 Order less and take leftover food home when dining in restaurants.
3 Call on family members and friends to take part in the campaign.
Reducing daily food waste by just 5% could save millions of people from starvation. Let's start doing what we can to make the world a greener,cleaner place!
With best wishes,
Class 8
亲爱的朋友们,
我们写这封信是为了呼吁大家参加“光盘”行动。它敦促人们节约食物，不要在餐桌上浪费任何东西。你可能不知道，世界上30%以上的食物被浪费了，而许多贫困地区的人却吃不饱饭。为了节约粮食，我们提出：
1.在学校食堂不要点超过你需要的东西。
2.外出就餐时少点餐，把吃剩的食物带回家。
3.呼吁家庭成员和朋友参与到这项运动中来。
每天减少5%的食物浪费就可以使数百万人免于饥饿。让我们开始尽我们所能，使世界成为一个更绿色、更清洁的地方！
致以最良好的祝愿：
8班
Read the letter and answer the questions.
1.What is the purpose of the letter
The purpose of this letter is to call on everyone to take part in the Clear Your Plate campaign.
2.What is the existing problem
Over 30% of the world's food is wasted, while many people in poor areas do not have enough to eat.
3.What are the proposed actions from Class 8
Do not order more than you need in the school canteen; order less and take leftover food home when dining in restaurants; call on family members and friends to take part in the campaign.
5
Work in groups. Discuss another environmental issue about which to write a persuasive letter and make notes.
Problem:
Cause(s):
Solution(s):
6
Now write a persuasive letter. Use the expressions in the box to help you.
Work in groups. Discuss another environmental issue about which to write a persuasive letter and make notes.
6
Now write a persuasive letter. Use the expressions in the box to help you.
Useful expressions
We are writing this letter to raise your awareness of ...
We are concerned that ...
We would like to suggest ...
We hope that you will consider ...
One of the reasons for this is ...
In order to improve the situation, we should ...
7
Share your letter with the class.
Show your composition
据报道，1990 年,藏羚羊(Tibetan antelope)的数量大约为100万只，它们的数量一度急剧减少。我们采取了一系列措施对藏羚羊进行保护。假设你是李华，请给你的外国朋友 Tom 写一封信，介绍保护藏羚羊的措施，内容包括:
1.设立自然保护区;
2.禁止猎杀;
3.提升公众意识。
要求：
1.词数80左右；
2.可适当增加细节，以使行文连贯；
3.开头和结尾已给出，不计人总词数。
Dear Tom,
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
Yours,
Li Hua
写作思路
（一审、二定、三明确、四分段）
(1)一审：确定写作体裁和主题
体裁：应用文
主题：保护藏羚羊的措施
(2)二定：确定时态和人称
时态：一般过去时(叙述过去的情况)
人称：以第三人称为主
(3)三明确
明确写作要点：说明写信的原因及描述问题→介绍保护藏羚羊的措施→期待回信
(4)四分段（与写作要点息息相关）
结合写作要点，正文部分适当分段
关键词语：incredible, reduce, present, adopt, protect...from...., extinction, establish, reserve, contribute to, hunt, permission, take...into account
Show your composition
邀请几位同学展示他们的作品！
Show your composition
Dear Tom,
Do you think it incredible that the population of the Tibetan antelopes once reduced sharply from about 1, 000, 000 in 1990 Thus, it was time to adopt some methods to protect the Tibetan antelopes from extinction.
Above all, establishing several reserves actually contributed to the protection of wild species. What's more, hunting the Tibetan antelopes without permission must be banned. Most importantly, we took the public into account, which meant we took measures to raise people's awareness to protect Tibetan antelopes.
Looking forward to your early reply.
Yours,
Li Hua
Show your composition
1. Search the Internet to know more about other “green truths” that are not true.
2.Write a short passage about them.
Homework
Unit 6 Developing ideas
What’s really green
哪些才是真正的环保做法？
阅读课件
To understand some common misunderstandings about environmental protection in our life through reading and hold a critical attitude towards the so-called “green truths”.
To use logical thinking and critical thinking to sort out and judge the common views on environmental protection in life.
To understand the logic of causes-effects-measures in the context of a green lifestyle.
To hold a doubtful attitude towards some common sense.
Learning objectives
Words and expressions
UNIT 6
majority n.多数，大多数(人或物) 90
□ false adj.不正确的，错误的 90
amount n.数量，数额 91
□ device n.设备，仪器，装置 91
* stand-by adj.备用的 91
□ mode n.(机器、设备的)运行方式，状态，模式 91
electricity n.电 91
□ leak v.(使)漏,(使)渗漏 91
* appliance n.家用电器，家用器具 91
remove v.移走，搬走，去掉 91
□ plug n.(电)插头 91
take... into account把……考虑进去 91
* litre n.升，公升 92
□ campaign n.(宣传)活动 94
□ urge v.竭力主张，强烈要求，敦促 94
□ canteen n.(工厂、学校等的)食堂，餐厅
94
concerned adj.焦急的，担忧的 95
contribute v.促成，造成(某事发生) 96
average adj.平均(数)的 96
Watch the video：Environmental protection
1.Do you support “green living”
2.How to protect environment in our daily lives
Watch and think
Lead-in
1. Which shopping bag is more environmentally friendly
□ A plastic塑料的 bag.
□ A paper bag.
□ Neither of these.
Look at the questions about “green living” and tick your answers.
1
2. What should you do to save energy when leaving your home
□ Turn off a device.
□ Unplug a device.
□ Neither of these.
拔掉……的电源插头
plug n. (电)插头
v. 用插头接通电源
关掉
turn on
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.
学习小窍门
由于副标题拓展主题或标题含义，通常比主题稍长一些。尽管并非每个段落都需要副标题，它完全可以被跳读过去给读者提供一个对全文内容的整体理解。
Look at the title, subtitles and pictures. Predict the main idea of this passage.
Pre-reading
Read the passage and check the prediction.
It discusses some common _________ which have been shown to be only________ or even completely__________
green truths
false
half true
(the 1st and the last paragraph)
While-reading
Subheading 1 Paper shopping bags are better than plastic ones.
Subheading 2 When you turn off a device, it stops using power.
Subheading 3 Eating local food is good for the environment.
Subheading 4 It's better to take a shower than a bath.
F
F
It depends.
It depends.
Read the four subheadings in the passage and decide if they are true or false.Then read the passage and check your answers.
2
What is the function of the red parts
subheadings/subtitles
main heading/title
expand on: give more information or details
Q1 How many parts can you divide the passage into
Part 1
Part 2
Part 3
Q2 What’s the main idea of each part
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Introduction
green
truth 1
Part 1: Introduction
Part 2: Body
Part 3: Conclusion
Q1 Do you think they are True Half True or Completely False
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.
？
Completely FALSE
Completely FALSE
HALF TRUE
HALF TRUE
？
？
？
Common sense:
Ideas that most people believe is right.
Careful reading
Q2 Why do you think these common senses are not true (reasons)
Q3 According to the reasons, what conclusions can you draw (results)
Reasons
Results
p
Paper shopping bags are better than plastic ones
Completely FALSE
Making a paper bag uses more energy and water.
It also produces more greenhouse gases.
Paper bags are not good for the environment.
Careful reading
Devices turned “off ” go into stand-by mode and still use power.
Electricity continues to leak from the device.
p
When you turn off a device, it stops using power.
Completely FALSE
Turning off a device won’t stop it from using power.
Remove the plug from its power supply.
a mode that maintains some functions and is ready to restart at any time
Careful reading
p
Eating local food is good for the environment.
HALF TRUE
It is the production of food, not its transport, that uses most of the energy and produces most of the greenhouse gases.
Eating local food isn’t always better for the environment.
Eat seasonal local food.
Careful reading
p
It’s better to take a shower than a bath.
HALF TRUE
If you spend more than eight minutes 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 short as possible.
Careful reading
√
√
√
√
Careful reading
“3Rs”
Q1 What else can you do to become a “greener”
Reuse
Reduce
Recycle
what you need
what you have/consume
what you can’t reduce or reuse
Careful reading
Q2 Why there are so many question marks in the passage
Doubtful attitude
Careful reading
3
Read the effects and complete the causes of these according to the passage.
Careful reading
这是有关环保常识的因果训练题，根据课文，仔细考虑这些因果关系。
提示：这里的2, 3, 4题的causes 分别出现在课文的问号下的5, 6, 7自然段中。
Thinking
Time
According to this passage, we have learned that not all “green truths” are true. It's worth checking common ideas and opinions to see what's really green. Only in this way can we better protect the environment and live a green life.
Careful reading
课文思维导图
Introduction
Body
Conclusion
green truth 1
green truth 2
green truth 3
green truth 4
Para 1
Para 2---7
Para 8
Paper bags are not good for the environment.
Turning off a device won’t stop it from using power.
Eating local food isn’t better for environment.
It’s not always better to take a shower than a bath.
语篇理解
Read the text and choose the best answer:
1. Why does the writer write the passage
A. He wants to introduce some new ways to save energy.
B. He wants to correct the faslse 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.
2. In the following, which one 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.
B
D
Careful reading
语篇理解
3. Why do people prefer to each 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.
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.
A
B
Careful reading
Devices turned off go into stand-by mode and still use power.
Local produce might use more energy and produce more green-house gases.
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.
3
Read the effects and complete the causes of these according to the passage.
Careful reading
1 Which of the “green truths” surprises you most Give your reasons.
2 Are you aware of any other “green truths” that are not true Share them with the class.
Think and Share
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.
I once thought we should turn off the light as soon as possible. In fact, if we are using the LED bulbs, it isn't favourale for power saving. This is because the instant high voltage（高电压） is twice than the usual voltage. Each usual turn-on-off action is equal to the power we keep the LED on for ten hours constantly!
Post-reading
3 How “green” are you Share your “green actions” with the class.
4 What can you do to become “greener”
I usually try to save energy and water in my daily life. For example，I always turn off the lights when I leave a room. I walk or ride a bike instead of taking a bus or a taxi. I take a cloth bag when I
go shopping .……
Turn off the lights and remove the plugs of electric devices when I go out or don’t use them; Give the old clothes to others to reuse them; Take a cloth bag or shopping basket instead of plastic bags when shopping …
Post-reading
Think and Share
Most of us are _______(awareness) that we must take care of the environment, and the mojority of us take steps _________(save) energy and reduce waste and pollution. But in fact, some long-held common sense turns out only half true, or even ____________(complete) false. For example, people think paper bags are _______(good) than plastic bags as they are easier to break down than the plastic _____(one). The process of making paper bags, _________, is more energy consuming and water wasting. So, take a reusable bag with you when shopping. Besides, remove the plug from its power supply, _________ the stand-by mode still use power. Eating local food isn't necessarily good for the environment, even taking transportation ______ account. Some take it for granted ______ a shower consumes less water than a bath. But that depends ____ how long you spend in a shower. The best policy is to keep your shower as short as possible.
_______________(environment) awareness is now part of daily life. But it's worth _________(check) common ideas and opinions to see what's really green.
aware
to save
completely
better
ones
however
because
into
that
on
Environmental
checking
Summary
How to become a “greener”
Work in groups. Give a talk about one of the “green truths” in the passage.
1 Use these questions to help plan your talk.
Which “green truth” are you going to talk about
Why do people believe it is “green”
Why is it not completely true
What can you do to become “greener”
2 Organise your talk following the steps below.
Start your talk by stating the topic.
Describe your chosen “green truth” in more detail.
Explain why it is not completely “green”.
End your talk by encouraging your audience to become “greener”.
3 Give your talk to the class.
4
Sample
Today I would like to talk about if paper shopping bags are better than plastic bags.
It’s widely acknowledged that plastic bags cause litter and are a danger to wild animals. It takes hundreds of years for plastic bags to break down. Therefore, plastic bags do harm to the environment. Because of this, some people think paper bags are better than plastic ones. But that is not true.
Making paper bags uses much more energy and water. It also produces more green house gases. So we come to the conclusion that paper bags are not environmentally friendly, either.
Since both of the above are not good for the environment, what's really green I suggest taking a reusable bag with you when shopping. It is really green. Starting from the small things around us, everyone can become a real "greener".
Writing a persuasive letter
Read the letter and answer the questions.
1.What is the purpose of the letter
2.What is the existing problem
3.What are the proposed actions from Class 8
5
Dear Friends,
We are writing this letter to call on everyone to take part in the Clear Your Plate campaign. It urges people to save food by not wasting anything on the dining table.You may not know over 30% of the world's food is wasted, while many people in poor areas do not have enough to eat. In order to save food,we propose:
1 Do not order more than you need in the school canteen.
2 Order less and take leftover food home when dining in restaurants.
3 Call on family members and friends to take part in the campaign.
Reducing daily food waste by just 5% could save millions of people from starvation. Let's start doing what we can to make the world a greener,cleaner place!
With best wishes,
Class 8
亲爱的朋友们,
我们写这封信是为了呼吁大家参加“光盘”行动。它敦促人们节约食物，不要在餐桌上浪费任何东西。你可能不知道，世界上30%以上的食物被浪费了，而许多贫困地区的人却吃不饱饭。为了节约粮食，我们提出：
1.在学校食堂不要点超过你需要的东西。
2.外出就餐时少点餐，把吃剩的食物带回家。
3.呼吁家庭成员和朋友参与到这项运动中来。
每天减少5%的食物浪费就可以使数百万人免于饥饿。让我们开始尽我们所能，使世界成为一个更绿色、更清洁的地方！
致以最良好的祝愿：
8班
Read the letter and answer the questions.
1.What is the purpose of the letter
The purpose of this letter is to call on everyone to take part in the Clear Your Plate campaign.
2.What is the existing problem
Over 30% of the world's food is wasted, while many people in poor areas do not have enough to eat.
3.What are the proposed actions from Class 8
Do not order more than you need in the school canteen; order less and take leftover food home when dining in restaurants; call on family members and friends to take part in the campaign.
5
Work in groups. Discuss another environmental issue about which to write a persuasive letter and make notes.
Problem:
Cause(s):
Solution(s):
6
Now write a persuasive letter. Use the expressions in the box to help you.
Work in groups. Discuss another environmental issue about which to write a persuasive letter and make notes.
6
Now write a persuasive letter. Use the expressions in the box to help you.
Useful expressions
We are writing this letter to raise your awareness of ...
We are concerned that ...
We would like to suggest ...
We hope that you will consider ...
One of the reasons for this is ...
In order to improve the situation, we should ...
7
Share your letter with the class.
Show your composition
据报道，1990 年,藏羚羊(Tibetan antelope)的数量大约为100万只，它们的数量一度急剧减少。我们采取了一系列措施对藏羚羊进行保护。假设你是李华，请给你的外国朋友 Tom 写一封信，介绍保护藏羚羊的措施，内容包括:
1.设立自然保护区;
2.禁止猎杀;
3.提升公众意识。
要求：
1.词数80左右；
2.可适当增加细节，以使行文连贯；
3.开头和结尾已给出，不计人总词数。
Dear Tom,
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
Yours,
Li Hua
写作思路
（一审、二定、三明确、四分段）
(1)一审：确定写作体裁和主题
体裁：应用文
主题：保护藏羚羊的措施
(2)二定：确定时态和人称
时态：一般过去时(叙述过去的情况)
人称：以第三人称为主
(3)三明确
明确写作要点：说明写信的原因及描述问题→介绍保护藏羚羊的措施→期待回信
(4)四分段（与写作要点息息相关）
结合写作要点，正文部分适当分段
关键词语：incredible, reduce, present, adopt, protect...from...., extinction, establish, reserve, contribute to, hunt, permission, take...into account
Show your composition
邀请几位同学展示他们的作品！
Show your composition
Dear Tom,
Do you think it incredible that the population of the Tibetan antelopes once reduced sharply from about 1, 000, 000 in 1990 Thus, it was time to adopt some methods to protect the Tibetan antelopes from extinction.
Above all, establishing several reserves actually contributed to the protection of wild species. What's more, hunting the Tibetan antelopes without permission must be banned. Most importantly, we took the public into account, which meant we took measures to raise people's awareness to protect Tibetan antelopes.
Looking forward to your early reply.
Yours,
Li Hua
Show your composition
1. Search the Internet to know more about other “green truths” that are not true.
2.Write a short passage about them.
Homework