人教版英语九年级全册Unit13we’retryingtosavetheearth!SectionA(3a-3b)课件（19张）

(共19张PPT)
Unit 13 we’re trying to save the earth!
Section A (3a-3b)
Save the Sharks!
Learning aims:
1. 通过自主学习，理解文章，并完成相应阅读任务；
2. 通过小组合作，能够根据提示内容复述课文；
3. 通过学习能够体会到保护自然环境，保护动物的重要性，并从我做起，保护地球。
Before reading
Save the sharks !
What’s the main idea of the passage
A.The shark fin soup is famous and expensive.
B.The sharks are endangered in the world.
C. People cut off sharks’ fins to make the
shark fin soup.
Reading Tip 1
Look at the picture and the topic carefully. You can get some information. (仔细阅读文章插图及标题)
Skimming 略读
Match
Para.1 A. Two groups against “finning”.
Para.2 B. Something about shark fin soup.
Para.3 C. Sharks are endangered now.
Reading Tip 2
Find out the key words in each paragraph. You can get some information. (找出每段的关键词)
Where is shark fin soup popular
2. What does it mean when people enjoy a bowl of shark fin soup
Read Para. 1
Southern China.
They’re killing a whole shark when they enjoy a bowl of shark fin soup.
Careful reading
How do people deal with them when they catch the sharks
2. Without a fin, what will happen to a shark
3.Why is it harmful to the environment
4. What do the two numbers 70 million and 90 percent mean
Read Para. 2
When people catch sharks, they cut off their fins and throw the sharks back into the ocean.
A shark can no longer swim and slowly dies.
Sharks are at the top of the food chain, so if their numbers drop too low, it will bring danger to all ocean life.
Around 70 million sharks are caught and traded every year.
The numbers of some kinds of sharks have fallen by over 90 percent in the past 20 to 30 years.
Read Para. 3
What are the two environmental protection groups
2. What are they doing & what have they done
3. Are the shark fins good for health
WildAid and the WWF
They are teaching the public about “finning”.
They have even asked governments to develop laws to stop the sale of shark fins.
No. No scientific studies have shown that shark fins are good for health.
Save the shark
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.
when
切掉 （v.+adv.)
be harmful to对…有害
把…扔回到…里
not only…but (also)…
不再，表示时间上不再延续
hear of/about 听说，得知
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.
用low/high修饰数值的高低，常与number搭配的动词
有grow, fall/drop
用于现在完成时
fall-fell-fallen fall by.. 下降了
the number of… 表示…的总数 ；做主语时谓语动词用单数
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’s fins. So far, no scientific studies
have shown that shark’s fins are good for health,
so why eat them Help save the sharks!
“猎翅”这一行为
到目前为止；用于现在完成时
立法，完善法律
…的销售
公众
1. hear of
2. cut off
3. throw …back into
4. not only…but (also)…
5. be harmful to…
6. no longer
7. at the top of..
8. in the last/past 20 years
9. develop laws
10. so far
11. the number of
12. fall by…
1. 听说
2. 切掉
3. 把…扔回某地
4. 不但…而且…
5. 对…有害
6. 不再
7. 在…的顶端
8. 在过去的20年里
9. 立法，完善法律
10. 到目前为止
11. …的总数
12. 下降了
Translate
【当堂检测】
1.----Look! _____ boys are playing on the playground.
----Yes. _____ them is about 200.
A. The number of; A number of
B. A number of; The number of
2.This is my twin sister, Lucy. Not only she but also I ___
good at drawing.
A. is B. am C. are D. was
3. 吸烟对健康有害。
Smoking is __________ ______ health.
4.我从来没有听说过他。
I have never ______ ______ him.
5. 到目前为止，我已经交了二十个朋友。
_______ _______, I _____ _________twenty friends.
heard of
So far
have made
harmful to
B
B
B号回答
合作学习一：
内容：根据提示复述文章内容
方法：四人一组讨论，尝试复述文章内容
时间：3分钟
shark fin soup
be endangered
against “finning”
southern
China
…a bowl of…
…a whole…
cut off…
throw…back into…
will die
cruel &
harmful
at the top of…
If…drop too low
will bring…to…
WildAid&WWF
be teaching…about…
…have asked…to
develop laws to…
Save the Sharks!
No scientific studies have shown that
shark fins are good for health.
Retell
two environmental
protection groups
Without a fin
据统计，全世界每天有75个物种灭绝，每一小时就有3个物种被贴上死亡标签。也就是说，我们在喝完一杯咖啡，打完一个电话，上完一节课，就有无数的动物灭绝了……
Should we let them disappear
合作学习二:
内容：根据提示写一篇关于保护动物的文章
方法：四人一组讨论，并由学生B写出文章并展 示
时间：4分钟
1. Why are they endangered
2. What will happen if their numbers drop too low
3. How should we protect them
For ourselves, …
For the government,…
1) pollute
2) have no place…
3) kill them to
eat
make money
If … drop too low, it will bring…to…
stop …
eating …
polluting…
develop laws to …
Writing
You can begin like this:
Today, Many wild animals are endangered.
Why are they endangered Firstly, … Secondly, ...
Besides, ……………………………………………………
For ourselves, … For the government, …
Summary
1.这节课我学到的知识：
2. 这节课我参与课堂发言情况：