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(共22张PPT)
Unit 7 The natural world
Inte D
Learning objectives
By the end of the lesson, I will be able to...
1
2
3
analyze and summarize the structure of Amy’s proposal on protecting the ocean, giving suggestions and better understanding the importance of protecting the ocean;
comprehend the content about various ecosystems, especially the importance, problems and solutions of the ocean ecosystem;
write a proposal to call on people to protect an ecosystem by using Amy’s proposal as a model and useful expressions, encouraging others to protect the natural world.
Compare and talk
Now
What’s the difference between the ocean
Before
Plastic waste
Pollution
What can we do to protect the ocean
As a member of an eco-club, what is your purpose of writing the proposal
Read the rubric in Part D.
To ask people to protect an ecosystem and help solve the problems.
When writing the proposal, what information will you mention
Brainstorm
Help protect the ecosystem
The importance
The problems
What we can do
A call to action
Pre-writing
Dear Sir or Madam,
With kind thanks,
Zhao Min
Read for the structure
Introduction: Say why you are writing the proposal.
Main body:
Say why the ecosystem is important.
State the problems it faces and how people can help.
Conclusion: Encourage people to take action.
I am writing today to ask for your help in protecting the ocean.
The ocean is home to many kinds of sea life. It provides us with food and offers us space to have fun. However, the ocean is facing many problems.
Pollution is one of the biggest problem. There are millions of tons of plastic waste in the ocean. Also, wastewater from factories and houses travels to the ocean and causes pollution. This will harm or even kill sea life. ...
It is meaningful to join an environmental group and work as a volunteer. Please join us. Together we can help protect the ocean.
Read and think
1. What is the biggest problem the ocean is facing
2. Why is it important to protect the ocean
3. How can we encourage people to help protect the ocean
Pollution. There are millions of tons of plastic waste in the ocean and wastewater from factories and houses causes pollution.
Because the ocean is home to many kinds of sea life, provides us with food and offers us space for fun.
By joining an environmental group, working as a volunteer, and telling people how important it is to protect the ocean.
Pre-writing
I am writing today to ask for your help in protecting the ocean.
Dear Sir or Madam,
main idea:
The purpose of writing
I am writing (to you) today to…
I am writing (to you) because…
I want to ask you to …
useful
expression:
Pre-writing
The ocean is home to many kinds of sea life. It provides us with food and offers us space to have fun. However, the ocean is facing many problems.
main idea:
useful
expression:
The importance of the ocean
... is/are home to ...
... provide(s) us with .../offer(s) us ...
However, ...is/are facing many problems.
Pre-writing
Pollution is one of the biggest problem. There are millions of tons of plastic waste in the ocean. Also, wastewater from factories and houses travels to the ocean and causes pollution. This will harm or even kill sea life.
main idea:
useful
expression:
The problems the ocean faces
...is one of the biggest problems.
One of the main problems is …
There are millions of tons of ...
Also, .../Another problem is …
This will harm/do harm to ...
Pre-writing
We can help solve the problems. We should keep beaches clean and use more environment-fiendly products. It is also a good idea to tell people how to prolect the ocean. We can also encourage them to help.
main idea:
useful
expression:
We can help solve the problems...
…keep beaches/the air/the water/... clean.
…use more environment-friendly products
It is also a good idea to ... /We can also …
Ways to help solve the problems
Pre-writing
It is meaningful to join an environmental group and work as a volunteer. Please join us. Together we can help protect the ocean.
main idea:
useful
expression:
A call to action
It is meaningful/important/... (for us) to ...
Please join us.
Come and be a member of our team.
Together we can ...
Useful expressions
Dear Sir or Madam,
I am writing (to you) today...
I want to ask you to...
...is/are home to...
One of the main problems is...
Another problem is...
It is meaningful to...
Together we can...
Choose an ecosystem and write a proposal asking people to protect it. Make an outline like the one in Part D1. Use Amy’s proposal as a model.
While-writing
每年6 月8 日为“世界海洋日(World Oceans Day)”。 2018 年世界海洋日的主题为“清洁我们的海洋(Cleaning Our Oceans)”。海洋中有数百万吨塑料垃圾，这会伤害甚至杀死海洋生物。作为中学生的你，应该减少塑料制品的使用。请以“Saying No to Plastics”为题，写一篇英语短文。
题目:Saying No to Plastics
要点如下:1. 塑料污染现状及减少使用塑料制品的重要性；
2. 减少使用塑料制品的建议。
注意：1. 词数80 ～ 100。
参考词汇：recycle v. 再利用；回收利用
Saying No to Plastics
______________________________________________________
While-writing
Saying No to Plastics
In recent years, we have to face the plastic pollution problems. There are millions of tons of plastic waste in the ocean. This will harm or even kill sea life. Therefore, we must take action to stop plastic pollution.
As students, we should reduce the use of plastics. First, we should use a cloth bag while we are shopping. Second, even if we need to use plastic bags, we should recycle and make full use of them. Third, we are supposed to bring our own cups instead of using plastic cups.
All in all, we should reduce the use of plastics to protect the earth and make it greener.
Example
be home to…意为“是…… 的家园”。用来描述某个地方是许多生物居住的地方。用法：主语通常是表示地点的名词
常见例句：
The forest is home to many wild animals.
森林是许多野生动物的家园。
1. The ocean is home to many kinds of sea life.
provide sb with sth / provide sth for sb 意为 “为某人提供某物”。这两个短语意思相同，但结构不同。
用法：“provide sb with sth” 中，sb是间接宾语，sth是直接宾语。“provide sth for sb” 中，sth在前，sb在后。
常见例句：
The ocean provides us with food.
海洋为我们提供食物。
Trees provide fresh air for us.
树木为我们提供新鲜空气。
2. It provides us with food and offers us space to have fun.
offer sb sth/offer sth to sb意为“向某人提供某物”。与 “provide” 意思相近, 但 offer 更强调主动给予。
用法: “offer sb sth” 结构中, sb是间接宾语, sth是直接宾语, “offer sth to sb” 中, sth在前, sb在后。
常见例句：
The hotel offers guests free breakfast.
酒店为客人提供免费早餐。
She offered a seat to the old man.
她给老人让了个座。
2. It provides us with food and offers us space to have fun.
3. This will harm or even kill sea life.
这会伤害甚至杀死海洋生物。
harm(v.)=do harm(n.) to=be harmful to
对……有害
果汁可能损坏儿童的牙齿。
Fruit juices can be harmful to children's teeth
对着屏幕时间过长可能对你的健康有害
Too much screen time may be harmful to your health.
encourage sb to do sth 意为 “鼓励某人做某事”。
用法: sb是被鼓励的对象, to do sth 是鼓励去做的事情。
常见例句：
We should encourage people to protect the environment.
我们应该鼓励人们保护环境。
The teacher encourages us to ask questions in class.
老师鼓励我们在课堂上提问。
4. We can also encourage them to help.
Basic homework
Read Amy’s proposal again and summarize the key points in your own words.
Extended homework
Search for more information on the internet about an ecosystem you are interested in. Write a short report about it, including
some new problems it faces and some creative solutions.

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