资源简介

(共23张PPT)
Integration
Unit 7
The natural world
Learning aims
通过听读活动，了解生态系统保护措施
谈谈如何保护森林
Lead in
What can you see in the video
Activity 1
Know something about how to protect ecosystems
Daniel is reading an article about Zhalong Nature Reserve.
Read with him and answer the questions below.
Zhalong 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 20% 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 a lot of wild life. It’s also home to some rare birds. 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.
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）
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
Daniel has found another talk by an environmental expert about how to protect wetlands. Listen with him and complete the notes below.
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
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 400 to 600 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 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
Language points
1. Governments can do this by creating laws to stop people from
building on wetlands, to reduce the number of tourists visiting
them and to make sure visitors do no harm while they are there.
(1) 长难句分析：这是一个主从复合句。主句是Governments can do this, by creating laws是方式状语，后面三个并列的不定式短语“to stop...”、“to reduce...”和“to make sure...”作目的状语，用来进一步说明制定法律的目的。
(2) create 作动词，意为“创建，创造”，常用作及物动词，后面接名词或名词短语作宾语，表示创造出具体的事物。
create 的形容词形式是creative，意为“有创造性的”。
creativity 是名词，意为“创造力；创造性”，通常用作不可数名词。
e.g. We should create a better future for the children.
我们应当为孩子们创造一个更好的未来。
She created a beautiful painting. 她创作了一幅美丽的画。
She has a very creative mind. 她有一个非常有创意的头脑。
The boy is full of creativity. You never know what he is thinking.
这个男孩很有创造力。你永远不知道他在想什么。
(3) stop sb. from doing sth. 阻止某人干某事
e.g. Nothing can stop me from playing basketball.
没有什么能阻止我打篮球。
(4) 辨析: a number of 与the number of
a number of 意为“许多、大量”，后接复数名词或代词，number 前可用large、small 等词来修饰，表示程度大小。“a number of + 复数名词/ 复数代词”作主语时，谓语动词用复数。
the number of 意为“……的数量”，后接复数名词或代词，强调人或物体的数量。“the number of + 复数名词/ 复数代词”作主语时，谓语动词用单数。
e.g. The number of the students in our class is 40.我们班的学生数量是40.
A number of tourists are on the beach. 沙滩上有大量的游客。
2. They can set up volunteer groups to help keep the wetlands free
from pollution, ...
(1) set up 是一个“动词+ 副词”型短语，名词作宾语通常放在后面，代词it 或them 作宾语要放在两个词的中间。它的意思有：
a.建立或创建，表示组建公司、组织、团队等；
b.安排或准备，表示对会议、活动等进行先期筹备；
c.搭起或搭建，表示简单地搭起舞台、房屋、帐篷等。
e.g. They set up a small company last year. 去年他们成立了一个小公司。
Let’s set up a meeting for the next week. 我们为下周开个会吧。
These are the tents for the camping. Please set them up.
这些是露营的帐篷。请把它们搭起来。
(2) 短语 keep ... free from ... 意思是“保护……免受……伤害（或影响）”。
e.g. Parents always want to keep their kids free from harm.
父母总想保护自己的孩子免受伤害。
Activity 2
Talk about how to protect forests
Daniel and Amy are talking about what they can do to help protect an ecosystem. Listen to the tape and answer the questions below.
1. What ecosystem are they talking about
2. What can they do to help protect the ecosystem
Forests.
They should not throw rubbish in forests. They can also work with a clean-up project. And maybe they can take their own chopsticks when eating out. They can encourage people to protect forests too. They can show people different ways to save forests.
Role play
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 forest ecosystem.
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.
Work in pairs and talk about the topic.
Use the conversation below as a model.
A: What can we do to help protect ..., B
B: Well, we should not ... We can also ...
A: That’s a good idea. ...
B: That’s true. And maybe we can ... It’s a great way to ...
A: Yes. We can ... too.
B: You said it! We can ...
A: Yes! ...
B: I agree.
Pair work
Summary
◆重点词汇
◆重点句式
north-east, cover, rare, red-crowned crane, stay, daytime, lead, lead to, mud, create, set up, balanced
What can we do to help protect forests, Daniel
We can also work with a clean-up project.
Rubbish causes pollution and damages the forest ecosystem.
And maybe we can take our own chopsticks when eating out.
It’s a great way to save trees.
Education and knowledge are useful tools to help keep forests safe.
Exercise
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.
provides food and cover for
keep fishing in wetlands
less and less living space
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 _____________________________________
keep/stop/prevent people from damaging
clean up the beach
(to) reduce pollution
Homework
1 Write the new words and phrases five times each
2 Write down your opinions on how to protect ecosystem.

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