Unit 13 We're trying to save the earth! Section A 3a-3b-课件(共29张PPT)

(共29张PPT)
Unit 13
We’re trying to save the earth!
Section A 3a-3b
Objectives
To have the awareness (意识)of protecting
sharks and respecting nature.
To understand the passage about
endangered animals—sharks.
To learn to use some words and expressions.
In your opinion, which animals need to be saved
Warming up
Free talk
Have you ever seen sharks（鲨鱼）
Why do they need to be saved
Read the passage about sharks and complete the fact sheet below.
3a
Save the Sharks!
Many have heard of shark fin soup. This famous and expensive dish is especially popular in southern China. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark fin soup
When people catch sharks, they cut off their fins and throw the shark back into the ocean. This is not only cruel, but also harmful to the environment. Without a fin, a shark can no longer swim and slowly dies. Sharks 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. Many
believe that sharks can never be endangered because they are the strongest in their food chain. But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to develop laws to stop the sale of shark fins. So far, no scientific studies have shown that shark fins are good for health, so why eat them Help save the sharks!
Where shark fin soup is popular
Number of sharks caught and traded every year
How goernmemt can help
Two environmental groups against “finning”
southern China
70 million
develop laws to stop the sale of shark fins
WildAid and the WWF
Read the title, the first and last sentences in each paragraphs and match the main ideas.
Talk about shark fin soup.
Sharks are endangered now.
Appeal(呼吁) to people against eating shark fins.
Para. 3
Para. 1
Para. 2
Read Paragraph 2 carefully and answer the following questions
1. If a shark doesn’t have a fin, what will happen
2. If sharks’ numbers drop too low, what will
happen
3. Why are sharks endangered now
If a shark doesn’t have a fin, what will happen
A shark can no longer swim and slowly dies.
If sharks’ numbers drop too low, what will happen
It will bring danger to all ocean life.
Why are sharks endangered now
Around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
Read Paragraph 3 and answer the questions.
1. What are the two environmental protection groups doing to protect the sharks And what have they done
a. They are teaching the public about“finning”.
b. They have even asked governments to develop laws to stop the sale of shark fins.
2. Are shark fins good for health Why
No, they aren’t. Because no scientific studies have shown that sharks are good for health.
Some people like to eat shark fin soup, especially in _________China. But getting the shark fin is very _____. When people catch the sharks, they ____ ____ their fins and throw the sharks into the ocean. The sharks slowly dies because they can’t _____ without fins. And it is also ________ to the environment. Sharks are at the ___ of the food chain. If the number of sharks drops too low, it will break the balance of the nature. Please say no to eating shark fin soup, and take action to save the sharks!
Retell the passage.
southern
cruel
cut
off
swim
harmful
top
1. Many people do not realize they are killing a
whole shark _____ they enjoy a bowl of shark’s
fin soup.
2. Sharks are at the top of the food chain, ______
if their numbers drop, the ocean’s ecosystem
will be in danger.
Read the passage again and fill in the blanks with the words in the box.
so although if but when
so
when
3b
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.
5. Sharks may disappear one day ____ we do
not do something to stop the sale of shark fins.
but
Although
if
What should we do to save the animals
Discussion
Don’t kill them
Don’t wear them
No trade No murder
Not only+倒装句，but also…
不但……而且……
Not only can my sister play the piano, but also she can play the violin.
我姐姐不但会弹钢琴，还会拉小提琴。
Language points
Harmful 有害的
构成的短语：
be harmful to sb./sth. 对某人/某事有害
= do harm to sb. 或 be bad for sb./sth.
Smoking is harmful to our health.
= Smoking does harm to our health.
= Smoking is bad for our health。
endangered 濒危的；濒危灭绝的
Our government must be done to protect these
endangered animals.
我们的政府必须采取措施来保护这些濒临灭绝动物。
Pandas are endangered animal.
熊猫是濒危动物。
Exercises
I. 根据句意及汉语提示填写单词。
1. There is no one to ________ (支持) him.
2. Keeping the animals in the zoo is very ________ (残酷的)．
3. ________ (鲨鱼) are very smart animals.
4. Our government has made ________ (法律) to stop driving after drinking.
5. Pollution problem is becoming more and more serious with the development of the ________ (工业)．
support
cruel
Sharks
laws
industry
II. 根据句意，用括号中所给词的适当形式填空。
1. Hainan is in the ________ part of China.(south)
2. We all support his __________ research.(science)
3. This is an _____________ animal.We should try to
save it.(danger)
4. Smoking is ________ to your health. You must give
it up.(harm)
5. Tom is _____________ in our school.(strong)
southern
scientific
endangered
harmful
the strongest
Review the passage you’ve learned
today.
2.Write at least 5 measures to protect
the endangered animals.
Homework