资源简介

(共22张PPT)
Section A (3a-3b)
law /l :/ n. 法律；法规
industry/ nd stri/ n. 工业；行业
advantage/ d vɑ:nt d /,/ d v nt d / n. 优点；有利条件
cost /k st/,/k :st/ v. (cost,cost)花费n.花费；
afford / f :(r)d/ v. 承担得起(后果)；买得起
wooden / w dn/ adj. 木制的；木头的
plastic/ pl st k/ adj. 塑料的n. 塑料；塑胶
harmful/ hɑ:(r)mfl/ adj. 有害的
scientific/ sa n t f k/ adj. 科学上的；科学的
reusable/ ri: ju:z bl/ adj.可重复使用的；
1.be full of/be filled with　充满
2.throw…into…　把……扔到……里
3.cut down　减少
4.air pollution　空气污染
5.instead of　代替,而不是
6.make a difference　起作用
7.lead to　导致
8.People are throwing litter into the river.Even the bottom of the river is full of rubbish.
9.Everyone in this town should play a part in cleaning it up!
10.Our actions can make a difference and lead to a better future!
11. To cut down air pollution, we should take the bus or subway instead of driving.
1. To have the awareness of protecting the sharks and respecting nature
2. To understand the passage about the endangered animal – sharks
3. To learn to use some words and expressions
Key words & phrases:
shark, fin, cruel, harmful, be harmful to, at the top of the food chain, ecosystem, industry, law, scientific
Key sentences:
1.But do you realize that you are killing a whole shark each time you enjoy a bowl of shark fin soup
2. But in fact ,around 70 million sharks are caught and traded in this industry every year.
Predict answers according to the title and the picture.
1. Where can you find the article
A. From a novel.
B. From a magazine.
C. From a diary.
2.What does it talk about
Air pollution
Animal protection
Travel
Match the main ideas with each paragraph.
Ask people to save the shark
Talk about shark fin soup.
Sharks are endangered now.
1
2
3
1.Have you heard of shark fin soup
2.Where is the shark fin soup popular
3. What will happen when you enjoy a bow of shark fin soup
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
Read paragraph 1 and answer the questions.
In Southern China.
You’re killing a whole shark.
Read paragraph 2 and answer the questions.
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.
Read paragraph 2 and answer the questions.
1.What do people do to the sharks
2.Why is shark finning harmful to the environment
3. How many sharks are caught and traded every year
4. How much have the numbers of some kinds of sharks fallen in the last 20 to 30 years
cruel
1.What do people do to the sharks
2.Why is shark finning harmful to the environment
3. How many sharks are caught and traded every year
4.How much have the numbers of some kinds of sharks fallen in the last 20 to 30 years
Read paragraph 2 and answer the questions.
Careful reading
Read paragraph 2 and answer the questions.
1.What do people do to the sharks
2.Why is shark finning harmful to the environment
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.
3. How many sharks are caught and traded every year
4. How much have the numbers of some kinds of sharks fallen in the last 20 to 30 years
By over 90 percent.
Around 70 million sharks.
Saving sharks means saving ourselves !
How can we help to save them
Read paragraph 3 and fill in the chart.
Actions to ___________________________________
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!
Government
Individual（个人）
are teaching the public about finning
develop laws(法律) to stop the sale of shark fins.
help save the sharks
protect the sharks
Two groups
WildAid and the WWF
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.
听说
鱼翅汤
切除
扔回
不仅...而且
对...有害
be harmful to
do harm to
be bad for
no longer &no more “不再”
no longer和not…any longer
侧重时间
no more和not…any more
侧重程度和数量
在...食物链顶部
海洋生态系统
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!
in the last/past+时间
fall by 下降了
eg. This year the price of TV falls by 20 percent.
fall to 下降到
eg. This year the price of TV falls to 2000 yuan.
制定法律
scientific[ sa n t f k] adj. 科学上的，科学的
science n. 科学 scientist n. 科学家
1. Many people do not realize they are killing a whole shark ______
they enjoy a bowl of shark fin soup.
2. Sharks are at the top of the food chain, ______ if their numbers
drop, the ocean’s ecosystem will be in danger.
so
when
so although if but when
Many think that sharks are too strong to be endangered, ______ they are wrong.
4. _________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
Read the passage again and fill in the blanks with
the words in the box.
Although
if
时间
因果
转折
条件
Discuss how to save the endangered animals
(每位小组成员都要想出至少一个拯救濒危动物的方法)
How can we protect our animals？
We should protect their living environment.
We should not eat wild and endangered animals.
We should not wear or buy the clothes made by an animal fur.
We should ask the government to make serious laws to protect them.
Why don’t we ask more people to take actions to protect them.
Save the Sharks!
提出问题：吃鱼翅就是杀害一整头鲨鱼(Para.1)
shark fin soup is popular in southern China
a bowl of shark fin soup=killing a whole shark
解决问题：国际环保组织号召反对
“猎翅”(Para.3)
cut off their fins and throw the sharks back into the ocean
cruel and harmful to the environment
around 70 million sharks are caught and traded every year
bring danger to all ocean life
the numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years
分析问题：为什么要阻止“猎翅” (Para.2)
environmental protection groups
no scientific studies have shown that shark fins are good for health
teaching the public about “finning”
asked governments to develop laws to stop the sale of shark fins
1.hear of　听说 2.cut off　割掉;砍掉
3.be harmful to对……有害 4.cut down　减少
5.at the top of　在……顶部或顶端
6.the food chain　食物链
7. so far　迄今为止 8.be good for…对……有益
9. 如果我们不做一些事情来阻止鲨鱼鳍的销售，总有一天鲨鱼会消失的。
Sharks may disappear one day if we don't do something to stop the sale of shark fins.
10. 在过去的二十到三十年里，一些种类的鲨鱼数量下降了90%。
The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
I.单项填空
( )1. Our country has made _____ to protect biodiversity（生物多样性）of the Yangtze River.
A.fins B.chains C.laws D.inventions
( )2.It seems much harder to take in fresh air at the _____ of high mountains.
A.bottom B.end C.foot D.top
( )3._____ many things change a lot, a love of sports hasn't changed a bit.
A.If B.Before C.Though D.Because
( )4. The number of the whales _____ smaller and smaller because of human activities now.
A.were B.was C.is D.are
( )5.Diet drinks（低热量饮料）are not quite as healthy as you think. It is reported that drinking too many of them might _____ illness.
A.lead to B.take in C.prepare for D.deal with
C
D
C
C
A
II.完成句子
1. 这种方式不仅残忍，而且对环境有害。
This is ________________, ___________________ the environment.
2. 如果它们的数量下降得太多，将会给所有的海洋生物带来危险。
If their numbers ________ too ________, it will _____________ all ocean life.
3. 很多人以为鲨鱼永远都不会濒临灭绝，因为他们是食物链的最强者。
Many ________ that sharks can _______________________ because
they are _____________ in their ______________.
4. 在过去的20年到30年，某些品种的鲨鱼数量下降了超过90%。
___________________ some kinds of sharks ______________ over 90
________________ in the last 20 to 30 years.
5. 到目前为止，没有任何科学研究表明，鱼翅对健康有好处，那么为什
么要吃它们呢
So far, no _________ studies ___________ that shark fins______________
health, so why ______ them
not only cruel
but also harmful to
drop
low
bring danger to
never be endangered
have fallen by
are good for
have shown
scientific
believe
the strongest
food chain
The numbers of
percent
eat
Homework
Memorize the summary
Recite the dialog in 3a.
Finish the exercises on the students’ book.
Preview Grammar focus-4b on page 100.

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