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(共16张PPT)
Unit13
We’re trying to save the earth!
SectionA Reading
Pre-reading
What do you know about sharks
They are at the top of the food chain in the ocean’s ecosystem.
the food chain in the ocean’s ecosystem
fin
different kinds
20cm-19m long
While-reading
What may the passage tell us about sharks
Facts
Problems
Solutions
Match the key words with the paragraphs.
While-reading
1.What is the fact about sharks
enjoy a bowl of shark fin soup
=kill a whole shark
2.Do you know how to get the shark fin
While-reading
catch sharks
cut off their fins
throw them back into the ocean.
no longer swim and slowly dies
3.What do you think of human’s behavior
4.What are writer’s opinions about killing sharks
While-reading
It is not only cruel,but also harmful to the environment.
5.Why is it harmful to the environment
Because they are at the top of the food chain in the ocean’s ecosystem, if their numbers drop too low,it will bring danger to all ocean life.
While-reading
6.But many believe that sharks can never be endangered,is it true
70 million werecaught and traded
The numbers have fallen by over 90 percent
fact
7.What is the fact
Sharks are endangered
While-reading
8. What are the two environmental groups which are against “finning”
Wild Aid and the WWF
10. Can you think more ways to help save the sharks
9. What are they doing & what have they done
They are teaching the public about “finning” and have even asked governments to develop laws to stop the sale of shark fins.
.
As students,what can we do to save the sharks
It is everyone’s duty to save the sharks.
For the students, we can ……
And we can ......
We also can ......
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Post-reading
Post-reading
Let’s make a poster about saving sharks in a group.
Have your main slogan or headline in the center.
Use the top, bottom, and sides for important details
Let’s make a poster about saving sharks in a group.
Post-reading
Use powerful images, and color your poster.
Let’s make a poster about saving sharks in a group.
Post-reading
Language points
Many people do not realize they are killing a whole shark __________ they enjoy a bowl of shark fin soup.
Sharks are at the top of the food chain, __________ if their numbers drop, the ocean’s ecosystem will be in danger.
Many think that sharks are too strong to be endangered, __________ they are wrong.
__________ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.
Sharks may disappear one day __________ we do not do something to stop the sale of shark fins.
when
so
but
Although
if
3b
Read the passage again and fill in the blanks with the words in the box. (P99)
Check if you know these phrases.
1.听说
2.在中国南部地区
3.每当
4.一碗鱼翅汤
5.切掉
6. 不再
7.不仅…而且
8.对…有害
hear of
in southern China
each time
a bowl of shark fin soup
cut off
no longer/more
not only …… but also
be harmful to
21世纪教育网
Check if you know these phrases.
9.在…的顶部
10.食物链
11.实际上，事实上
12. …的数量
13.在过去20到30年里
14.到目前为止
15.海洋生态系统
at the top of
the food chain
in fact
the number of
in the last 20 to 30 years.
So far
the ocean’s ecosystem

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