资源简介

(共31张PPT)
Unit 7 The natural world
（Integration）
年 级：八年级 学 科：英语（译林版）
View and talk
The three main ecosystems on earth
ocean
the “_______” of the earth
the “______” of the earth
wetlands
the “_______” of the earth
forests
Revision
heart
lungs
kidneys
treat them kindly
Protecting ecosystems
Reading
Read and complete
Reading
Zhalong Nature Reserve Location In Heilongjiang Province in the _________ of China
Importance It’s one of the world’s most important wetlands. It provides ________ and ________ for wildlife. It is ________ to some rare birds.
Problems Some people want to make the wetlands ________ to have more space for _____________________ .
If fishermen keep ________ there, the birds will not have enough food to eat.
Solutions Now the Chinese government has made laws to ________all these things there.
north-east
food
cover
home
smaller
farms and buildings
fishing
prevent
Think and answer
What other actions can we take to help protect wetlands
We shouldn’t let harmful waste get into wetlands.
We can help others understand why
wetlands are important.
...
Reading
Listen and choose
Listening
location
facts
importance
Listen and complete
Listening
Listen and complete
Listening
farms and buildings
harm the plants
building
tourists
do not harm
pollution
careful
wetland trees
set up volunteer groups
keep the ecosystem balanced
Read and complete
Writing
Save the wetlands!
Wetlands are really important for wildlife, so we must __________ our wetlands.
Governments can do this by creating laws to stop people from
__________on wetlands, to reduce the number of tourists visiting them and to make sure visitors ____________ while they are there.
The Chinese government created Yancheng Nature Reserve. It is a really important wetland and is home to many different plants and rare ________. About 400 to 600 red-crowned _________ fly to Yancheng every year to spend the winter there!
Local communities can also help protect wetlands. They can set up _______________ to help keep wetlands free from pollution, make sure tourists are _________when they visit and plant wetland trees to keep the __________ balanced.
protect
building
do not harm
birds
cranes
volunteer groups
careful
ecosystem
Think and summarize
Summarizing
The importance of wetlands
The problems they face
What we can do
Home to many birds and wildlife
Provide food and cover for a lot of wildlife
Make the water clean and prevent floods
People use wetlands for farms and buildings
Some fishermen keep fishing there, so the birds do not have enough food
Tourists may bring trouble to animals or harm the plants
Join volunteer groups to help protect wetlands
Tell people the importance and ways to protect wetlands
Listen and answer
Speaking
Listen and answer
1.Which ecosystem are they talking about
2. How many different ways are mentioned
in the conversation
Forests.
Four.
Speaking
Read and find
Speaking
Amy: Daniel: Amy: Daniel: Amy: Daniel: Amy: Daniel: What can we do to help protect forests, Daniel
Well, we should not throw rubbish in forests. We can also work with a clean-up group.
That’s a good idea. Rubbish causes pollution and changes the ecosystem in forests.
That’s true. And maybe we can take our own chopsticks when eating out. It’s a great way to save the trees.
Yes. We can encourage more people to protect forests too.
You said it! We can show people different ways to save forests.
Yes! Education and knowledge are useful tools to help keep forests safe.
I agree.
Read and find
4 ways to protect forests
②Work with a clean-up group.
④Encourage people to protect forests and show people different ways to save forests.
③Take our own chopsticks when eating out.
Speaking
①Don’t throw rubbish in forests.
Read and find
Speaking
Amy: Daniel: Amy: Daniel: Amy: Daniel: Amy: Daniel: What can we do to help protect forests, Daniel
Well, we should not throw rubbish in forests. We can also work with a clean-up group.
That’s a good idea. Rubbish causes pollution and changes the ecosystem in forests.
That’s true. And maybe we can take our own chopsticks when eating out. It’s a great way to save the trees.
Yes. We can encourage more people to protect forests too.
You said it! We can show people different ways to save forests.
Yes! Education and knowledge are useful tools to help keep forests safe.
I agree.
“You said it” is a
common way to
express agreement.
I can’t agree more./ Exactly.
I second that./ I’m all for it...
Think and talk
Work in groups of two and talk about how to protect forests.
Speaking
A:What can we do to .../How can we help ...
B: Well, ... We can also ...
A: That’s a good idea. It/That causes ...
B: That’s true. And maybe we can ...
A: Yes. We can ... too.
B: You said it! We can ...
A: Yes! ...
B: I agree./I couldn’t agree more.
Think and summarize
Summarizing
Home to many animals and plants
Help clean the air and provide us with oxygen
Perfect places for hiking and camping
People cut down trees for farmlands and wood
Rubbish causes pollution and damages the ecosystem in forests
Do not make open fires there
Recycle and reuse everyday products made from wood
Join volunteer groups to plant and protect trees
What we can
do
The problems
they face
The
importance of forests
2.What’s the difference between her outline and our summary tables
Read and find
1. Which ecosystem does Amy write about
Writing
The ocean.
A proposal(倡议书) is meant to inform the reader of a problem, offer solutions and encourage the reader to take action.
Read and analyze
Writing
The structure of a proposal
Opening
The contents of a proposal
Introduction
Main body
Conclusion
Closing & signature
Salutation(称呼语）
Say why you are writing it
Say why the ecosystem is important
Say the problem it faces
Say how people can help
Say how you let
Complimentary close(结尾敬语）
Read and analyze
Writing
Read and analyze
Writing
The language of a proposal
I am writing today in order to ...
I am writing (to you) today because ...
provide food for us
offer space to us
lead to pollution
Yours faithfully,
formal language
authentic expressions
One of the main problems is...
proper transitions
be harmful to/ do harm to
We often end a proposal with a strong and moving sentence to encourage the reader to take action.
Read and analyze
Writing
The language of a proposal
I am writing today in order to...
I am writing (to you) today because...
provide food for us
offer space to us
lead to pollution
Yours faithfully,
formal language
authentic expressions
One of the main problems is...
proper transitions
be harmful to/ do harm to
encouraging ending
Writing task
Choose an ecosystem and create an outline
Writing task
Write your proposal based on the outline
refer to Part D2 and “Useful expressions” on page 104
pay attention to the structure, contents and language
keep neat handwriting (书写工整)
check your proposal after you finish it
exchange in pairs for peer-evaluation (同伴互评)
Evaluate and improve
Writing
Evaluation Scores Peer-evaluation
1 clear structure five parts 4
2 rich contents 1. importance 2. problems 3. solutions 6
3 beautiful language 1. formal language 2. authentic expressions 3. proper transitions 4. encouraging ending 5. no grammar or spelling mistakes 8
4 handwriting neat handwriting 2
Total score 20
Here’s a writing sample. Why not have a look
Dear Sir or Madam,
I am writing to ask for your help in protecting forests around the world. Forests are home to many animals and plants. Moreover, they help clean the air and provide us with oxygen.
But forests are disappearing quickly. People are cutting down trees to make way for farmlands and buildings, as well as everyday products, such as paper. Pollution is another problem for forests. Rubbish and waste from cities and factories are harming the plants and animals living there.
Together we can help solve these problems. We can protect our forests by planting new trees. We can also recycle and reuse everyday products to reduce waste. Moreover, we can share our ideas and let others know about the importance of looking after forests.
lt is time for us to take action now. I hope we can work together to help protect forests.
Yours faithfully,
Lu Jiang
Summary
something about Zhalong and
Yancheng Nature Reserves;
1
2
In this lesson, we have learnt:
how to catch information
from listening;
3
4
how to give suggestions on protecting ecosystems;
how to write a proposal asking people to protect ecosystems.
Compulsory homework:
1. Finish the exercises on the worksheet.
2. Polish your proposal according to peer-evaluation and the
writing sample.
Optional homework:
Collect more ideas about what you can do to protect ecosystems and spread the ideas to people around.
Homework
感谢您的观看

展开更多......

收起↑