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(共29张PPT)
Where do you want to travel
Unit2 Travelling aruond Extended Reading The Sahara is getting bigger
1. To master the main idea and detailed information of the passage.
2. To learn about the desertification and the reason for its expansion.
3. To get the measures to prevent its expansion .
4. To develop reading skills .
Teaching Aims:
Task1 skimming
From the title, what do you think the passage will be about
A. The beautiful scenery in Sahara.
B. The big size of the Sahara.
C. The expanding of Sahara and
measures to solve it.
D. How to survive in the Sahara.
Read the passage quickly, and get the main idea of the article.
____________________________
The Sahara is getting bigger
Skimming
Skimming
Which column(专栏) does this article come from
A. Science and technology.
B. Tourism guide.
C. Health and care.
D. Nature and the environment.
Task 2 Scanning
Divide the passage into 3 parts, and match the main idea to each paragraph.
Part1(1):
Part2(2.3):
Part3(4):
The reason for its enlargement and measures to prevent its expansion.
The general introduction of
the Sahara.
The territory enlargement of
the Sahara.
Task 3
Careful reading
The main elements mentioned in paragraph 1 of the Sahara are its__________,__________ and_______________.
part1
size
location
population
part2(Para2.3)
Read this part carefully and do some practice .
(1) What explanation method is used in this part
A. Illustration（举例说明） B. Definition（下定义）
C. Classification（分类） D. Implication（暗示）
(2) What can we infer from this part
A. Scientists have no idea of its expansion.
B. About 75% of the Sahara is mountains.
C. The rainfall is enough in the Sahel area.
D. It is human beings that are to blame for the
desertification.
(3) For what purpose was the desertification of the Sahel referred to
A. To introduce its important geographic location.
B. To show the differences between it and other
areas.
C. To prove a new “desert” is being born.
D. To raise our awareness of environment
protection.
The Sahara desert is getting bigger
The Sahara is getting bigger for less_______
para3
It is because of shrinking___________________
It has been caused by_____
They destroyed them for the expansion of ______,__________________and
___________________
rainfall
tropical
rain forests
people
cities
population growth
environment pollution
Why
Group work
Supposing Bruce from Africa and Shi Guangyin from China have a chance to make a dialogue between them...
Related questions: What's your opinion about... /How did you deal with... /What changes have you brought about... What do you think we studnts should do...
Task 4 Discussion
Bruce
ShiGuangyin
DIALOGUE
Bruce: Hi, this is Bruce from Sahara.
I heard the news that Maowusu
is disappearing, so I want to
know what we should do to
prevent the Sahara’s expanding.
DIALOGUE
Shi Guangyin: It’s my pleasure....
Shi Guangyin: Hello, this is Shi Guangyin speaking.
Task 5 Group work
What should we do
Choose energy-efficient equipment
选用节能电器
Use fewer plastic bags
少用一次性塑料袋
Use fewer chopsticks
少用一次性筷子
Don't waste water
不浪费水
Learn to recycle
学会废物新利用
We can plant more trees
多种植一些树木
Do you know about the Maowushu desert
Write a report about how to deal with the expansion of the desert after sorting out the information you have got through thevideo.
Key points:
1. The reasons
2. The measures
3. The future
Homework
Summary:
Clear water and green mountains are
mountains of gold and silver.
Nature symbolizes the
beginning of life and
brings us endless hope.
We are in a blue sky with
a common love of
interdependence.
I PROMISE!
I will take action!
I will stop the damage!
I will protect the environment!
Let `s join hands to protect our earth
让我们携起手来保护我们的地球
Bye-bye!

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