资源简介

(共16张PPT)
Unit 7 The natural world
Integration A-C
desert
rainforest
tundra(苔原)
wetland
①
②
③
Where is it
Why is it so important
What problem does it face
﹏﹏﹏﹏﹏﹏﹏﹏
/re (r)/
Protect ecosystems
—wetlands
Are there any other important wetlands like Zhalong in China
Jiangsu
east
2,472
Yellow River
birds
500
/m d/
/ j kts/ 长江
Tip1：Predict the answers before listening.
Protect ecosystems
—wetlands
Tapescript
There are many wetlands in China. Yancheng Nature Reserve, in Jiangsu Province in the east of China, is one of the world‘s most important wetlands. It covers an area of about 2,472 square kilometres. The mud and sand from theYellow River and the Yangtze River formed the area.
Yancheng Nature Reserve provides a home for many different plants and rare birds, There are more than 400 types of birds living there. One of them is the red-crowned crane, and they are at risk in the wild. There are about 2,000 red-crowned cranes in the world. About 400 to 600 red-crowned cranes fly toYancheng every year to spend the winter.
环境专家
/ n va r n mentl// eksp t/
What does the talk tell us
Tip2：Predict parts of speech(词性) of the answers before listening.
v. -ing n.
verb (phrase)
v. -ing
n.
verb (phrase)
v. -ing n.
adj.
n.
Protect ecosystems
—wetlands
solutions
farms and buildings
building
tourists
do no harm
pollution
careful
wetland trees
harm the plants
Protect ecosystems
—wetlands
v. -ing n.
verb (phrase)
v. -ing
n.
verb (phrase)
adj.
n.
v. -ing n.
Tapescript
Wetlands are really important for wildlife. We should try our best to protect wetlands.
There are two main problems for wetlands today. First, people use the land for farms and buildings. Another problem is caused by tourists. As people move through wetlands, they may bring trouble to the animals there or harm the plants.
To help solve these problems, governments can take action by creating laws to stop people from building on wetlands. Governments can also make laws to reduce the number of tourists visiting wetlands and make sure visitors do no harm while they are there.
Local communities should also work together to help protect wetlands. They can set up volunteer groups to help keep wetlands free from pollution and make sure tourists are careful when they visit. They can also plant wetland trees. These trees can attract more birds, animals and insects to keep the ecosystem balanced.
protect
building
do no harm
birds
cranes
volunteer groups
careful
ecosystem
Protect ecosystems
—wetlands
Further thinking
Are wetlands important for humans
protect
animals & plants
humans
human activities
All the ecosystems need our
protection.
Protect ecosystems
—forests
What can we do to help protect forests
How to show the agreement
That’s a good point!
I couldn’t agree more!
You read my mind!
I feel the same way!
...
Talk about what we can do to protect ecosystems.
Agreement:
That’s a good idea/ point.
That’s true.
You said it!
I agree.
I couldn’t agree more.
Disagreement:
I don’t think so.
I’m afraid I disagree.
I understand your idea, but I think...
Work in pairs
A: What can we do to protect wetlands/oceans/
grasslands...
B: Well, we should (not)...
A: That’s a good idea. We can also...
/ I don’t think so, because...
B: That’s true. And maybe we can ...
A: You said it! We can ...
B: I agree.
To treat the earth kindly is to treat oneself kindly.
Ecotopia
For all:
Write a short report about the ecosystem you like. It should include importance, problems and action.
For Some:
Enjoy some documentaries(纪录片) like Planet Earth to learn more about different ecosystems and share your findings with classmates.
Homework

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