Unit 13 We're trying to save the earth Section A 3a--3b课件(共27张PPT) 人教版九年级全册

(共27张PPT)
Unit 13
Save
the
Sharks!
Section A 3a-3b
Why do people eat shark fin soup
1
2
It is expensive, it is like a symbol of status(地位) .
People think it is good
for their health.
Careful reading
Para 3
Is shark fin's soup really good for your health
It even harms to people's health.
What can we do to save the sharks
1. Learn as much as you can about sharks.
2. Don't use shark products.
3. Reduce your seafood consumption（消耗/消费）.
4. Reduce,Reuse,Recycle.
5. Donate and volunteer with a shark conversation organization.
6. Call on the people around you to protect the sharks.
3b Read the passage again and fill in the blanks
with the words in the box.
When
so
but
Although
if
3b
The ocean is beautiful because of the diversity (多样性) of life.
What is the king of the sea
Dangerous.
No predators.
Many people think that sharks are too strong to be endangered.
In fact,
now the number of sharks is smaller and smaller.The sharks are endangered!
We
should
save sharks!
Fast reading
Find out the main ideas in each paragraph.
Something about shark fin soup.
Sharks are endangered.
Help save the sharks.
Scanning
Read and finish the blanks on your book.
Where shark fin soup is popular:
__________________________
Number of sharks caught and traded every year:_____________________
How governments can help:
__________________________
Two environmental groups against
“finning”:____________________
In southern China
Around 70 million
To develop laws to stop the sale of shark fins
WildAid and WWF
Careful reading
Para 1
1. What is shark fin soup made of
It is made of shark fins.
2. What do you know about this dish
famous
expensive
popular
3. From Para 1, what does it mean to enjoy a bowl of shark fin soup
It means that you're killing
a whole shark.
Para 2
How do people get shark fins
What will happen
if sharks don't have
their fins
When people catch sharks ,they cut off their fins and throw the sharks back into the ocean.
They can no longer swim and slowly die.
This is not only cruel,but also harmful to the environment.
Why does it do harm to the environment？
________
__________________
Why does it do harm to the environment
Sharks are _____________the food chain in the ocean's ecosystem.
If their _________ drop too low, it will ______________all ocean life.
at the top of
numbers
bring danger to
According to the Para 2, do you think sharks are endangered
The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
Around 70 million sharks are caught and traded in this industry every year.
Language
Points
1. heard of / about 听说
2. a bowl of 一碗
3. cut off 切除
4. throw back 扔回
5. not only ... but also... 不但...而且...
6. be harmful to 对...有害
7. no longer 不再
8. at the top of 在...顶部...
Key words
Key words
9. the food chain 食物链
10. ocean ecosystem 海洋系统
11. bring danger to sb. 给某人带来危险
12. in fact 事实上
13. the numbers of ...的数量
14. fall by 下降了
15. Environmantal protection 环境保护组织
group
Key words
16. develop laws 立法
17. the sale of ...的售卖
18. so far 到目前为止
19.scientific studies 科学研究