资源简介

(共28张PPT)
Unit 4 The Earth
Focusing on culture
1. emperor
2. hunt
3. war
4. sandstorm
5. solution
6. blow
7. generation
8. hundreds of
9. blow away
n. 皇帝 p. 62
v. 打猎 p. 62
n. 战争 p. 62
n. 沙暴 p. 62
n. 解决办法 p. 62
v. 刮；吹 p. 62
n. （统称）一代人 p. 62
数以百计 p. 62
吹走 p. 62
New words and phrases
Warming up
What do you think is important for protecting the Earth
Have you heard of any successful environmental projects
Ant Forest turns its users into game players and helps plant trees in desert areas in the northwest of China, like Shanxi and Gansu Province.
turn ... into ... 把……变成……
What’s the name of the project
How long did it take to turn the desert into forest
When did the first tree planters go there
What is it called today
Now let’s find out what the project is!
Saihanba National Forest Park. — a large reforestation project.
n. 再植树；封山育林
55 years.
In 1962.
The Green Lung of North China.
华北绿肺
Pre-reading
Look at the title and the picture on page 62 and try to answer the following questions.
What do you think the article will talk about
What challenges do you think the people in Saihanba might have faced while turning a desert into a forest
Based on the picture, what changes do you think happened in Saihanba over time
How the Saihanba areas was turned into forest.
The people faced challenges of terrible desert weather, such as cold and dry weather.
It is covered with dense forest.
adj. 浓的，密集的
Many people have worked hard to protect our beautiful planet.What challenges do they face What achievements have they made
While-reading
First reading
1 Choose the best answers after listening to the whole article.
1. Why did the emperors go to Saihanba for hundreds of years
a) To plant trees. b) To hunt. c) To escape from wars.
2. What was the main cause of Saihanba turning into a desert
a) Lack of rainfall.
b) Overhunting by the emperors.
c) Forest fires, wars, and deforestation.
3. What was one of the difficulties faced by the workers who planted
trees in Saihanba
a) The area was flooded frequently.
b) The temperature could drop to as low as -40°C in winter.
c) The trees grew too quickly and needed constant care.
Second-reading
Read the article after the recording.
Saihanba is a forest park in the north of Hebei. It is about 400 km from Beijing. For hundreds of years, the emperors went there to hunt. But in the 1800s, things began to change. There were forest fires and wars, and people cut down many trees. Saihanba slowly turned into a desert.
Saihanba: turning desert into forest
Read the article after the recording.
When the forest disappeared, there were terrible sandstorms in the Beijing area. In the early 1960s, a group of scientists travelled to Saihanba to find a solution. They found an old tree in the middle of the desert. “Maybe we can still plant trees here,” they thought. In 1962, the first tree planters arrived in Saihanba. The cold and dry weather made their work very difficult, and storng winds blew away many young trees. In winter, it got as cold as -40°C.
Second-reading
Read the article after the recording.
Three generations of forest workers continued the hard work. Thanks to them, Saihanba is green again. It is today the world’s biggest man-made forest. There are hundreds of millions of trees there. The forest helps provide the capital with clean water, and there are fewer sandstorms in the Beingjing area now.
Second-reading
2 Answer the questions below with the information from the article on page 62.
1. How did Saihanba become a desert
2. Why was it difficult to turn the desert into a forest
3. How does the forest improve the environment in the
Beijing area
There were forest fires and wars, and people
cut down many trees. Saihanba slowly turned into desert.
Because the cold and dry weather made it very difficult, and strong winds blew away many young trees.
The forest helps provide the capital with clean water, and there are fewer sandstorms in the Beijing area now.
How generations of Chinese create forests in Saihanba.
n. 一代人
Picture stories
The 'green miracle' is created by three generations.
绿色奇迹
Picture stories
It is not only a solution to sandstorm, but also home to different kinds of wild animals.
n. 解决办法
Picture stories
3 Complete the sentences with the words and the phrases below. Change the form if necessary.
generations
solution
blew away
Sandstorms
hunt
Post-reading
Notes
塞罕坝林场
“地球卫士”奖
联合国环境规划署
“At present, Saihanba's forest stock volume reaches nearly 10.37 million cubic meters, and it delivers 137 million cubic meters of clean water and 570,000 tonnes of oxygen to Beijing and Tianjin each year.
By 2030, the forest area of Saihanba is expected to reach 1.2 million mu, and its forest coverage rate is likely to hit 86 percent.” (From China Daily, August 26th, 2021)
We can see the Saihanba Afforestation Community is a significant environmental restoration (恢复) project in China and has got big success. Now discuss the questions below with your group members.
(1) Why are forests important
(2) What can we do to protect them
4 Discuss the questions below.
One possible answer:
(1) Why are forests important
Firstly, they give us clean air to breathe. Secondly, they are home to lots of animals and plants. Thirdly, they help keep the soil in place and stop floods. Fourthly, forests can make the world more beautiful. What’s more, we get wood from forests to build houses and make furniture.
(2) What can we do to protect them
We can do many things to protect the forests. For example, we should not cut down trees. We can plant new trees. We should save paper to use less wood. We can tell our friends and family not to hurt the forests. We can also join groups that help protect forests. Don’t throw rubbish in the forest. We should follow the rules when we visit the forest.
One possible answer:
Have you been to Saihanba Find out more about the place online.
Exploring more
Read the follow news and find the answer to the question:
What does the Mongolian word “Saihanba” mean
Watch a video to learn more about Saihanba.
Exploring more
Have you been to Saihanba Find out more about the place online.
Read the article and find the phrases below on your book.
New phrases
1. 在……的北部
2. 数以百计的
3. 变成
4. 在19世纪
5. 在20世纪60年代初
6. 一群
7. 在……的中间
8. 吹走
9. 多亏；由于
10. 使某人/某物……
11. 给某人提供某物
_______________
_______________
_______________
_______________
_______________
_______________
_______________
_______________
_______________
_______________
_______________
in the north of
hundreds of
turn into
in the 1800s
in the early 1960s
a group of
in the middle of
blow away
thanks to
make sb./sth. +adj.
provide sb. with sth.
Language Points
1. Saihanba is a forest part in the north of China.
短语“在……的……方向” 可以用 _________________
来表达。比如：在……的东部 ______________________
在……的南部 ______________________
在……的西部 ______________________
in the+方位名词+of
in the east of
in the south of
in the west of
1) 北京在中国的北部。
_______________________________________
2) 公园在我们学校的南部。
_______________________________________
Beijing is in the north of China.
The park is in the south of our school.
2. In the early 1960s, a group of scientists travelled to Saihanba to find a solution.
in the 1960s 意为________________，在……世纪……年代 ：________________，年代相差1; 表示“初期”可以用______修饰，“末；晚期”用______修饰。
在20世纪60年代
in the +整十年份+ s
在20世纪30年代 ________________
在21世纪初期 ________________
在十九世纪70年代末 ________________
early
late
in the 1930s
in the early 2000s
in the late 1870s
Language Points
2. In the early 1960s, a group of scientists travelled to Saihanba to find a solution.
solution 词性__________（可数/不可数)，意为
__________________【拓展】动词形式为_____
解决问题：___________________；
某事的解决办法：___________________
名词
解决方法；处理手段
solve
a solution to sth.
solve the problem
1) 有一些解决污染的好办法。
_________________________________________
2) 我不知道怎样解决这个问题。
I don’t know how to ________ _______ ________.
There are some good solutions to the pollution.
solve the problem
Language Points
3. Clouds move across the sky, and it’s all thanks to the wind.
across 词性_________，意为_________________
介词
穿过
辨析：across, through与over
1) Walk across the street, and you’ll see a big tree.
2) You can see a playground through the window.
3) The dog jumped over the chair.
Language Points
3. Clouds move across the sky, and it’s all thanks to the wind.
Summary:
across表示__________________________________
through表示_________________________________
over表示 ___________________________________
表面穿过或从某个平面的一边到另一边
从某个立体空间内穿过，通过
从某物的正上方跨越（越过、跨越）
Language Points
辨析：across, through与over
Thank you!

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