资源简介

(共22张PPT)
Unit 4 The Earth
牛津广州版七年级上册
Why should we learn about the Earth
Key question
主题范畴：人与自然
Speaking +Writing
The Earth is
an amazing planet.
Review
2. The plants on earth are...
The tallest trees...
The smallest plant...
1. There are...
fields and mountains,
rivers and seas,
forests and deserts
4. provide..with...
such as...
3.The Earth is home to...
like...（例如）
1.
2.
3.
4.
catch a lot of fish
Example:
S1: What problem is the Earth facing
S2: People catch a lot of fish.
There are fewer and fewer fish in the sea every year.
...
Follow the example and take turns asking and answering questions like this:
S1: What problem is the Earth facing
S2: People __________________.
There is/are __________________.
...
(problem)
(result)
Problem
Result
fewer and fewer fish in the sea
What problems is the world facing
P 59
use a lot of dangerous farm chemicals,
less and less clean groundwater
S1: What problem is the Earth facing
S2: People use a lot of dangerous farm chemicals.
There is less and less clean groundwater.
Problem
Result
S1: What problem is the Earth facing
S2: People burn oil and gas to make energy.
There are more and more harmful gases.
burn oil and gas to make energy,
more and more harmful gases
Result
Problem
S1: What problem is the Earth facing
S2: People cut down trees and build farms.
There is less and less forest land.
cut down trees, build farms,
less and less forest land
Problem
Result
Our only home, the Earth, is in danger.
What should we do
We should do something to protect our Earth.
有危险的
stop using plastic bags
take, shopping bags to...
We can stop using plastic bags.
We should take our shopping bags to the supermarket.
We must stop doing sth....
We can do sth....
We should do sth....
It is important for us to do sth. ...
reuse water
turn off , when...leave...
We can turn off the light
when we leave the classroom.
It’s important for us to reuse the water in our daily life.
We must stop doing sth....
We can do sth....
We should do sth....
It is important for us to do sth. ...
dustbin 垃圾桶
must stop throwing...away
everywhere
put...into..
We must stop throwing rubbish away everythere.
We should put rubbish
into the dustbin.
We must stop doing sth....
We can do sth....
We should do sth....
It is important for us to do sth. ...
must stop burning...to make energy
green energy
The factories must stop burning things to make energy.
It’s important for us to use the green energy.
We must stop doing sth....
We can do sth....
We should do sth....
It is important for us to do sth. ...
We can stop using plastic bags.
We can turn off the light when we leave the classroom.
We should put rubbish into the dustbin.
We should take our shopping bags to the supermarket.
The factories must stop burning things to make energy.
We must stop throwing rubbish away everythere.
It’s important for us to use the green energy.
It’s important for us to reuse the water in our daily life.
What can we do to protect the Earth
Teen Post
Next week is Green Week. We want your ideas on how to protect the Earth. Please email your article to us. We will put your great ideas on our website.
Writing an article about protecting the Earth
青少年网帖
下周是绿色周。我们想听听你对于如何保护地球的想法。请把你的文章用电子邮件发给我们。我们会把你的好主意放在我们的网站上。
1. 文体：___________
2. 人称：___________
3. 语言风格：___________
4. 时态：__________________________
5. 写作要点：_______ 个要点，包含：
说明文
第三人称
客观描述
一般现在时、现在进行时
三
The Earth is a beautiful planet;
The problems the Earth is facing;
Things we can do to protect the Earth
Step 1: 题干细审
Part 1:
Part 2:
Part 3:
What things are there on the Earth
Why should we protect the Earth
How can we protect the Earth
Step 2: 谋篇布局
Plan and think
Steps:
1. Think of a topic sentence for each part.
2. Organize the information in the notes on page 60.
3. Add details or examples to support the topic sentence.
There be句型
like/such as(列举)
For example + 例子
Besides,此外
What’s more,此外
supporting sentences
Topic sentences
Part 1:
Part 2:
Part 3:
What things are there on the Earth
Why should we protect
the Earth
How can we protect
the Earth
First，...(首先)
Second, ...（第二）
Third, ...（第三）
Finally, ...（最后）
Pay attention to the logic between different parts.
Connect and cohere
Remember to add:
a title（标题）
an Ending
necessary linking words
完成学案
Protect the Earth
The Earth is a beautiful place. There are a lot of high mountains, blue seas, and beautiful rivers. The Earth provides us with air, water and food.
This beautiful planet is our only home. However, we are harming the Earth in many ways. For example, factories put dirty water into lakes and rivers. It causes water pollution. Besides, people use too much plastic and throw rubbish everywhere. As a result, lots of sea animals are dying because of plastic pollution.
Step 4: 扩充成文
What’s more, some people cut down many trees to build farms. So there is less and less forest land.
We only have one Earth, so we have to protect it. First, factories must stop polluting rivers and lakes. Second, we should bring our own shopping bags to the supermarket and sort rubbish in the right way before throwing rubbish into the trash can. Finally, it’s important for us to plant more trees to make our Earth more beautiful.
Let’s start small and protect our Earth!
Checklist

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