资源简介

(共34张PPT)
Unit
6
The natural world
Unit
7
Integration
学习目标
通过本节课的学习，同学们能够:
1.结合扎龙湿地的例子说明湿地面临的至少 2 个问题及对生物的影响；结合森林相关内容说明森林面临的问题及影响;针对湿地和森林保护分别提出 2 条切实可行的做法,如保护湿地水源、不随意砍伐树木等。
2.在与同学讨论保护生态系统的方法时,清晰地表达自己的观点，同时尊重并借鉴他人的合理建议。
3.认识到不同生态系统对地球和生物的重要性，树立整体保护
生态环境的意识,主动在生活中践行环保行为。
The earth is our home, and we should try our best to protect it.
Warm up
But…
Watch and think
Human beings have cut down many trees. The forests have gone.
many trees
cut down
Watch and think
A lot of rich land changed into desert.
The oceans are also in danger because of human activities.
Watch and think
What problems is the Earth facing
Climate Change
Deforestation
(过度砍伐)
Pollution
Water Scarcity
Species extinction
(物种灭绝)
Overfishing
…
Think
Lead in
Integration
Protecting ecosystems
We should do what we can do to protect the earth. And we should try our best to protect the ecosystems.
Protecting wetlands
Protecting seas/oceans
Protecting forests
…
A
Daniel is reading an article about Zhalong Nature Reserve. Read with him
and answer the questions below.
Zhang Nature Reserve is in Heilongjiang Province in the north-east of China. It is one of the world’s most important wetlands. The area provides food and cover for a lot of wildlife. It is home to some rare birds. For example, about 40% of red-crowned cranes live in Zhalong.
Many birds live in Zhalong all year round, while some go there only for a short stay. Most birds are active in the daytime, so you can easily watch them there.
Some people want to make the wetlands smaller in order to have more space for farms and buildings. This will lead to less space for wildlife. Moreover, if fishermen keep fishing there, the birds will not have enough food to eat. Now
the Chinese government has made laws to prevent all these things in Zhalong.
1 Why is Zhalong an important place for the birds
Because it provides food and cover for them. It’s also home to some rare birds and a lot of wild life. Many birds live there all year round.
2 What other actions can we take to help protect wetlands
We can plant more trees around the wetlands. We can also educate more people about the importance of wetlands and ask them not to litter there.（答案不唯一）
思考：What other nature reserves do you know
I know the Wolong Nature Reserve in Sichuan. It’s famous for protecting pandas. I also know the Changbai Mountain Nature Reserve in Jilin. There are many rare plants and animals there.（答案不唯一）
B1
Daniel is listening to a talk about a wetland. Listen with him and choose
the correct answers to complete the sentences below.
1 Yancheng Nature Reserve is in _______ Province in the _______ of China.
a Heilongjiang, north-east b Hainan, south c Jiangsu, east
2 The reserve covers an area of about _______ square kilometres.
a 247 b 2,472 c 24,720
3 The mud and sand from the _______ and the Yangtze River formed the area.
a Taihu Lake b Yellow River c Hongze Lake
The reserve is home to more than 400 types of _______.
a birds b plants c animals
5 About _______ red-crowned cranes fly to Yancheng every year to spend the
winter.
a 100 b 500 c 1,000
c
b
b
a
b
B2
Daniel has found another talk by an environmental expert about how to
protect wetlands. Listen with him and complete the notes below.
Protect our wetlands
Two main problems:
·People use the land for (1) _________________________.
· Tourists may bring trouble to the animals there or (2) _____________________.
What governments do:
·Stop people (3) _____________ on wetlands
·Reduce the number of (4) ____________ visiting wetlands
· Make sure visitors (5) ________________ while they are there
What local communities do:
·Keep the wetlands free from (6) _____________
·Make sure tourists are (7) ___________
·Plant (8) ___________________
farms and buildings
harm the plants
building
tourists
do no harm
pollution
careful
wetland trees
听力预判法
听力预判强调在听力开始之前，根据已有的信息（如题目主题、题型、选项内容等）对听力材料的内容以及可能涉及的要点进行预先判断。在做本题时，先快速浏览，明确主题（如本题主题为保护湿地）及题型（笔记填空），了解需记录信息的范畴（问题、措施等），构建整体框架。
B3
Daniel is writing an article about plete it below with the
information in Parts B1 and B2.
Save the wetlands!
Wetlands are really important for wildlife, so we must (1) _________ our wetlands.
Governments can do this by creating laws to stop people from (2) _________ on wetlands, to reduce the number of tourists visiting them and to make sure visitors (3) _____________ 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 (4) _________. About 1,000 red-crowned (5) _________ fly to Yancheng every year to spend the winter there!
Local communities can also help protect wetlands. They can set up (6) __________________ to help keep the wetlands free from pollution, make sure the tourists are (7) _________ when they visit and plant wetland trees to keep the (8) ____________ balanced .
protect
building
do no harm
animals
cranes
volunteer groups
careful
ecosystem
C
Daniel and Amy are talking about what they can do to help protect forests.
Work in pairs and talk about the topic. Use the conversation below as a model.
Amy: What can we do to help protect forests, Daniel
Daniel: Well,we should not throw rubbish in forests. We can also work with a clean-up project.
Amy: That’s a good idea. Rubbish causes pollution and damages the ecosystem in
forests.
Daniel: That’s true. And maybe we can take our own chopsticks when eating out. It’s a great way to save trees.
Amy: Yes. We can encourage people to protect forests too.
Daniel: You said it! We can show people different ways to save forests.
Amy: Yes! Education and knowledge are useful tools to help keep
forests safe.
Daniel: I agree.
“You said it!” is a common way to express agreement.
Tip
Show Time
clearly
loudly
correctly
emotionally
fluently
D
Imagine you are a member of an eco-club. You are going to write a proposal
asking people to protect an ecosystem and help solve the problems it faces.
D1
Look at Amy’s outline for her proposal to ask people to help protect the ocean.
Please help protect the ocean
The importance of the ocean ·Home to many kinds of sea life
·Provides us with food
·Offers us space for fun
The problems it faces ·Millions of tons of plastic
·Wastewater from factories and houses
What we can do ·Clean up the beach
·Use environment-friendly products
·Tell people how to protect the ocean
A call to action ·Volunteer to help
D2
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.
Read Amy’s proposal on protecting the ocean.
I am writing today to ask for your help in protecting the ocean.
Dear Sir or Madam,
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.
Yours sincerely,
Zhao Min
We often end a proposal with a strong and moving sentence to encourage the reader to take action.
Tip
承上启下
承上启下是指在文章中，通过特定的语句或段落，将上文的内容与下文的内容连接起来，使文章前后呼应，形成一个有机的整体。如作者通过“However, the ocean is facing many problems.”这一转折句实现承上启下，使文章从积极方面的描述平稳过渡到消极现状的呈现，增强了文章的连贯性，让读者能够顺畅地跟上作者的思路。
写作技巧
D3
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.
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...
Dear Sir or Madam,
I am writing to you today because the tropical rainforest, a wonderful place full of life, is in trouble. We need to do something to save it.
I want to ask you to help protect the tropical rainforest. It is very important for our planet. The tropical rainforest is home to many amazing animals and plants. There are colorful birds, cute monkeys, tall trees and beautiful flowers. They all live happily there.
One of the main problems is that people cut down too many trees.
They want to make space for farms or build houses. But this makes many animals lose their homes.
Sample
Another problem is that some people hunt animals in the rainforest. This is bad because some animals are becoming fewer and fewer.
Together we can protect the tropical rainforest. We can tell more people
how important it is. We can also ask adults not to cut down too many trees or hunt animals. Let’s work together to keep the tropical rainforest a happy home for all the living things there.
Yours sincerely,
[Your Name]
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
______________________________________________________
参考范文
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.
Show Time
Items Comments Marks 自评 他评 师评
structure Choose an ecosystem and write a proposal asking people to protect it 4
content useful expressions in P104 6
language variety of sentences and rich expressions 5
proper transitions 2
first person and simple present tense 1
others correct spelling and punctuation marks(标点) 1
beautiful and tidy handwriting 1
Total marks 20 points
What I can do Me Partner
1 I can retell some facts about different ecosystems.
2 I can use verbs and sentence structures, and, but, or and so, and the suffix -ly correctly.
3 I can talk and write about protecting the ecosystems with the new words in this unit.
4 I have some ideas about why it is important to protect ecosystems
and the environment.
Assess your learning of new words and grammar by doing the exercises on page140.
Result: Weak Good wonderful
I am good at ______________.
I need to spend more time on _________________ .
My action plan:______________________.
Futher Study
The Chinese Wetlands is a wonderful
documentary about various kinds of wetlands
in China, the Chinese people's efforts to
protect them and the achievements we
have made. Watch it to learn more about
the importance of wetlands and share your
findings with your classmates.
Work in groups and choose one place that interests you. Search online for basic information about it. Then discuss what you want to include in your fact file. You may refer to the following questions.
Why do you care about this place
What kinds of plants and animals are there
What serious problems did/does it face
What are the causes of these problems
the Maowusu Desert
Zhanjiang Mangrove National Nature Reserve
Qiandao Lake
一、用所给单词的适当形式填空
1. John didn't sleep well last night because of his (noise) neighbours.
2. The storm turned out to be (dead), making several children lose their
lives in the region.
3.Lily is the most (like) to join the debate(辩论) team because she enjoys
public speaking.
4. The classroom was full of (live) discussions as students shared their
ideas about the topic.
5.The staff at the hotel were much (friend) and provided excellent
service during our stay.
6.The library encourages kids (share) book reviews to build a fun
reading community.
当堂检测
noisy
deadly
likely
lively
to share
friendlier
二、根据汉语提示完成句子
1.扎龙自然保护区位于中国东北部，为很多野生动物提供食物和庇护所。
Zhalong Nature Reserve is in the north-east of China and _______________________________a lot of wildlife.
2.如果渔民持续在湿地钓鱼，这将会导致野生动物的生活空间越来越少。
If fishermen __________________________, this will lead to __________________________
for wildlife.
3.政府可以通过创建法律阻止人们毁坏环境并使得湿地免受污染。
The government can _____________________________________________ the environment and keep the wetlands free from pollution by creating laws.
4.老师鼓励我们使用环保产品并在空闲时清理海滩以帮助减少污染。
Teachers encourage us to use environment-friendly products and ____________________ in our free time in order to help .
provides food and cover for
keep fishing in wetlands
less and less living space
keep/stop/prevent people from damaging
clean up the beach
(to) reduce pollution
THANKS
本课结束

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