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(共16張PPT)
Lesson 5
Key question
Why should we learn about the Earth
Before you watch
Where is Saihanba located
Have you ever been there
Do you know how large it is
Do you think it is beautiful now
Can you imagine what it used to look like
Prediction: What are likely to be mentioned in the video
the location of Saihanba
the meaning of Saihanba
the coverage of trees
the area of grassland
the number and types of plants and animals there
the disappearance of habitats
people’s cutting down forests
While you watch
Task 1 Watch a video clip about Saihanba and match the numbers with the things you have got.
Task 1 Match the numbers with the things you have got.
1. the forest park a. nearly 1,000
2. grassland b. 80%
3. trees c. 94,000 hectares
4. plant species d. 15,000 hectares
5. animal species e. 70,000 hectares
6. forest coverage f. more than 600
7. a forest belt g. over 50 km long and 17 km wide
While you watch
Task 2 Watch the video again and answer the questions below.
1. What does the Mongolian word “Saihanba” mean
2. Why have animals, such as the red deer, returned to Saihanba
3. How does Saihanba help the environment now
It means “beautiful highland”.
Thanks to the newly-planted forest, animals such as the red deer have returned to Saihanba.
The forest now protects the plain from sand and dust storms and also stops the flow of cold, dry air from the north.
After you watch
Group discussion
What led to Saihanba’s great changes
What can we do to protect forests
Task 1 Scan the passage on page 62 and fill in the missing information. Pay attention to the time and events.
Task 2 Summarize the main idea of each paragraph
with subheadings and key words.
Para. 1: __________________
Para. 2: __________________
Para. 3: __________________
History and problems
Actions and challenges
Efforts and achievements
Task 3 Think and answer
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 a 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.
Achievements
Task 4 Interview （Group Work）
Suppose you are a reporter for the school newspaper. The newspaper is going to carry a special feature on Saihanba Spirits. You are going to interview some relevant people about their experiences.
S1: news reporter
S2: director of the forest farm
S3: early pioneer
S4: director of research institute
Self-assessment
評價 內(nèi)容 1. 我能理解塞罕壩的相關(guān)背景知識。 1 2 3 4 5
2. 我能理解塞罕壩改造過程中遇到的困難。 1 2 3 4 5
3. 我能理解塞罕壩改造成功后是如何改善環(huán)境的。 1 2 3 4 5
4. 我能學(xué)習(xí)塞罕壩精神，愿意力所能及地保護(hù)環(huán)境。 1 2 3 4 5
Homework
基礎(chǔ)作業(yè)
1. 完成課本p.63上的詞匯練習(xí)。
2. 復(fù)述塞罕壩改造成功的故事。
拓展閱讀
1. 將Task 4的采訪任務(wù)制作一張報紙，需包括人物介紹、事跡介紹、人物引言等。
2. 上網(wǎng)查找資料或者觀看電影，了解更多關(guān)于塞罕壩的報道。
THANKS

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