Unit 13 We’re trying to save the earth!
Period 3(Section A 3a-3b)
【学习目标】：
一、听、说、读、写以下词汇：, cruel, harmful, industry, law, cut off ,shark, fin, chain, ecosystem2·1·c·n·j·y
二、通过学习，口、笔头掌握下列句型：
1) Many have heard of shark fin soup.
2) When people catch sharks, they cut off their fins and throw the shark back into the ocean.21·世纪*教育网
3) This method is not only cruel, but also harmful to the environment.
4) If their numbers drop too low, it will bring danger to all ocean life.
三、能读懂介绍关于保护鲨鱼的文章，完成相应阅读任务，并能正确运用连词或状语从句改写文章。
四、通过了解鲨鱼的现状，增强保护濒危动物的意识。
【学习重点、难点】掌握词汇，正确运用连词或状语从句
【教学过程】
一．Warm-up
Show some pictures of sharks.
1.What do you know about sharks?
Where do sharks live?
Are they all very big?
What do they eat?
Do people catch them?
Why do people catch them?
二．导入
Show pictures about sharks which are killed, ask questions:
Do you think we should save the sharks?
Why ? How ?
引出本文
三．教学过程
1.Skimming 速读文章，找出段落大意。
Para 1 Bad things happen when people cut off sharks’ fins.
Para 2 Environmental protection groups have done things to protect sharks.www-2-1-cnjy-com
Para 3 You’re killing a whole shark when you enjoy a bowl of shark fin soup. 2-1-c-n-j-y
2.Careful Reading
Para. one Judge the sentences
①Shark’s fin（鱼鳍）soup is famous and expensive all around the world.
②You’re killing a whole shark when you enjoy a bowl of shark’s fin soup.21*cnjy*com
Para. Two
Underline two different opinions about killing sharks【来源：21cnj*y.co*m】
This is not only cruel, but also harmful to the environment.
Many believe that sharks can never be endangered.
Why killing sharks is not only cruel, but also harmful to the environment?
Many believe that sharks can never be endangered.But what’s the fact ?
Para. Three
阅读并回答问题
What are the names of the two Environmental protection groups ?
What are they doing to protect the sharks?
Task 1 Work on 3a.：Read the passage about sharks and complete the fact sheet. 【版权所有：21教育】
Where shark fin soup is popular
Number of sharks caught and traded every year
How much numbers of some kinds of sharks have fallen in the last 20 to 30 years 21教育网
Two environmental groups against “finning”
思考并回答
What can people do to save the sharks?
Read the passage again and fill in the blanks with the words in the box.
1. Many people do not realize they are killing a whole shark ______ they enjoy a bowl of shark fin soup.21世纪教育网版权所有
2. Sharks are at the top of the food chain, ____ if their numbers drop, the oceans ecosystem will be in danger.21cnjy.com
3. Many think that sharks are too strong to be endangered, _____ they are wrong.21·cn·jy·com
4. _________ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.www.21-cn-jy.com
5. Sharks may disappear one day ___ we do not do something to stop the sale of shark fins.【出处：21教育名师】
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
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
【教学反思】本课围绕介绍鲨鱼及如何保护鲨鱼，旨在让学生通过学习增强保护动物保护环境的意识。通过本课的学习，让学生掌握大量的词汇，理解并运用状语从句。在教学环节上更应注重单词的运用，状语从句的练习及运用。【来源：21·世纪·教育·网】
测评练习
Task 1 Work on 3a.：Read the passage about sharks and complete the fact sheet. 21世纪教育网版权所有
Where shark fin soup is popular
Number of sharks caught and traded every year
How much numbers of some kinds of sharks have fallen in the last 20 to 30 years
Two environmental groups against “finning”
思考并回答
What can people do to save the sharks?
Read the passage again and fill in the blanks with the words in the box.21教育网
1. Many people do not realize they are killing a whole shark ______ they enjoy a bowl of shark fin soup.21cnjy.com
2. Sharks are at the top of the food chain, ____ if their numbers drop, the oceans ecosystem will be in danger.21·cn·jy·com
3. Many think that sharks are too strong to be endangered, _____ they are wrong.www.21-cn-jy.com
4. _________ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.2·1·c·n·j·y
5. Sharks may disappear one day ___ we do not do something to stop the sale of shark fins.【来源：21·世纪·教育·网】
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
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
课件21张PPT。Unit 13
We're trying to save the earth! Section A 2
3a-3b
sharksWhat do you know about sharks ?
Where do sharks live? Are they all very big?
Do people catch them? Why ?
. shark fin Save the SharksWhy？How？Fast reading. Match the main ideas.Para. 1
Para. 2
Para. 3Environmental protection groups
are against “finning”.
You’re killing a whole shark when you enjoy a bowl of shark fin soup.
Bad things happen when people cut off sharks’ fins.
①Shark’s fin（鱼鳍）soup is famous and expensive all around the world.
②You’re killing a whole shark when you enjoy a bowl of shark’s fin soup. Careful Reading Para. 1 Judge the sentences.FTCareful reading Para. twoUnderline two different opinions about killing sharksThis is not only cruel, but also harmful to the environment.
2. Many believe that sharks can never be endangered.
Save the sharks!`people cut off their fins and eat shark fin soup.A shark can no longer swim and slowly dies.at the top of the food chain in the ocean’s ecosystemIf sharks’ numbers drop too low, It will bring danger to all ocean life. Many believe that sharks can never be endangered.But in fact, around 70 million…were
caught and traded in this
industry every year. The numbers …have fallen
by over 90 percent in the
last 20 to 30 years.1. What are the names of the two Environmental protection groups ?
2. What are they doing to protect the sharks?
a. They are teaching the public about “finning”.
b. They have even asked governments to develop laws to stop the sale of shark fins.
Careful reading Para. threesouthern China70 millionover 90 percent WildAid and the WWF3aRead the passage about sharks and complete the fact sheet below.What can people do to save the sharks?people should stop eating the shark fin soup!when the buying stops, the killing can too. Save the sharks!
Save ourselves!3bRead the passage again and fill in the blanks with the words in the box. 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.whenso3. 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.butAlthoughifadj. 科学上的，科学的 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 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 ecosystemHomeworkWrite 5 measures to protect the
environment.
