资源简介

(共38张PPT)
Unit 13 We're trying to save the earth.
人教新目标版 九年级上
Section A 3a-3b　
Save the sharks.阅读公开课
Learning objectives
1. 在语境中理解，识记并运用本课时词汇：shark, fin, cruel, harmful, chain, ecosystem, industry, law, scientific, be harmful to, at the top of, the food chain
2. 通过略读和寻读，能够了解鲨鱼的生存现状及其原因。
3.能运用阅读策略读取濒危动物的语篇大意，段落中心句和细节信息，并运用思维导图和复述方式帮助理解文章内容和架构。
4. 通过小组活动，能够在实际运用中说明鲨鱼濒危及其原因，提升环保意识。
Sharks are endangered.
Warming-up
Weight
up to __ tons
Length
__ cm – __ m
Habitats
__________
Lifespan
寿命
__ – ____ years
Species
more than _____
_____ (or _____)
at the ____ of the food chain [t e n] in the ocean’s ecosystem [i k s st m]
Diet
Facts about sharks
20
19
11
oceans
20
150
1,000
flesh
meat
top
whale shark
The largest
dwarf lantern shark
The smallest
Free talk
What do you know about the sharks
Are they important
Why do they matter
1. fighting climate change
2. digging through sand
for other marine species
to feed
3. helping phytoplankton (浮游植物) to grow
4. attracting tourists
to swim with sharks
to make money
5. dead shark bodies
support other species
in the deep ocean
Do you want to know more about sharks Let’s read the passage.
说明文阅读微策略
根据标题和图片预测文本内容。
What’s the passage maybe about
What’s the passage maybe about
Lead-in
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
Prediction
说明文阅读微策略
根据标题和图片预测文本内容。
Find out the main idea of each paragraph.
Take action to protect the sharks.
Sharks are endangered.
Talk about shark fin soup.
Problem
Facts
Solution
Fast-reading
Careful reading
Save the Sharks!
1 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 Para. 1 . and answer the question below.
1. What is shark's fin soup made of
2. What do you know about this dish
3. Where is shark fin soup popular
4. Why we shouldn't enjoy it
It is made of shark fins.
It's famous,expensive and popular.
It's especially popular in southern China.
Because we're killing a whole shark each time we enjoy a bowl of shark's fin soup.
Is shark fin's soup really good for your health
It even harms to people's health.
Millions of tons of waste enter the oceans every year,polluting the seas，messing the beaches and endangering wildlife.Some litter is eaten by fishes and other sea animals, and then they enter the food chain.(ocean pollution)
2 When people catch sharks, they cut off their fins and throw the sharks 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.
Careful reading
Read Para. 2 and finish the tasks below.
1. Why are sharks endangered now
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.
2.How do people get shark fins
3. 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 dies.
cruel
harmful
4. How does this do harm to the environmemt
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
Saving sharks means saving ourselves !
How can we help to save them
3 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!
Careful reading
Read Para.3 . and finish the tasks below.
Actions to __________________________________
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
1. What are the two environmental protection groups
2. What are they doing & what have they done
Answer the question below.
They are teaching the public about “finning”. They have even asked governments to develop laws(法律) to stop the sale of shark fins.
The WildAid and the WWF.
美国野生救援会(WildAid)是1999年在美国注册的非盈利机构，总部在美国旧金山，它对濒临绝迹的野生动物提供直接的保护，并且发展许多有创意的计划，以教育大众关于野生动物及生态平衡的重要性。
世界自然基金会(WWF)是在全球享有盛誉的、最大的独立性非政府环境保护组织之一，自1961年成立以来，WWF一直致力于环保事业，在全世界拥有超过500万支持者和超过100个国家参与的项目网络。
3a
Read the passage about sharks and complete the fact sheet below.
Where shark fin soup is popular
Number of sharks caught and traded every year
the numbers of some kinds of sharks have fallen in the last 20 to 30 years
Two environmental groups which are against “finning”
southern China
70 million
over 90 percent
WildAid and the WWF
Language points
1.A shark can no longer swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。
【解读】no longer意思是“不再”
有两个短语和no longer同义，即not…any longer和not…any more，但他们侧重的方面不同。
e.g.I’m no longer a student.
我不再是个学生了。
You can drink no more. = You can’t drink any more.
你不能再喝了。
no longer和not…any longer侧重时间。
e.g. He no longer lives here.
= He doesn’t live here any longer.
他不在这儿居住了。(一个时间以前他住
在这儿，过了这个时间，他就离开了。)
not…any more侧重程度和数量
e.g. You can drink no more.
= You can’t drink any more.
你不能再喝了。(喝酒的量到了一定程
度，不能再继续下去了。)
2.This method is not only cruel, but also harmful to the environment.这种方法不但残忍而且对环境有害。
【解读1】not only…but also… 用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅……而且……”；其中的also有时可以省略。
e.g. 1) She not only plays well, but also writes music.
她不仅很会演奏，而且还会作曲。
2) Not only men but also women were chosen.
不仅仅是男的，女的也有被选中的。
若连接两个成分作主语，其谓语通常与靠近的主语保持一致。
e.g. Not only you but also he has to leave. 不只是你，他也得离开。
not only放在句首，后接句子时要用倒装结构。
e.g. Not only had the poor man been fined, but also he had been sent to prison.这个可怜的人不仅被罚款，而且还被送进了监狱。
【解读2】 harmful/'hɑ (r)mfl/ adj.有害的。 harmful可用作表语和定语，常用于be harmful to“对……有害”这个结构中。
注意：harmless adj.无害
harm n. /v.伤害 do harm to 对……有害
e.g. Eating too much candy is harmful to your teeth.
吃太多的糖对你的牙齿有害。
That will do harm to your study.那对你的学习不利。
3.Sharks are at the top of the food chain in the ocean’s ecosystem.鲨鱼位于海洋生物系统食物链的顶部。
at the top of 还可表示“(速度, 声音等) 达到极限；（地位、名次）达到最高。
e.g. She ran at the top of her speed.她以自己最快的速度跑。
He shouted at the top of his voice in order that he might be heard.
他尽力大声叫喊, 以便别人能听见。
【解读】at the top of 在......的顶部
4.If their numbers drop too low, it will bring danger to all ocean life. 如果它们的数目降至过低，会给所有海洋生物带来危险。
【解读】 此句复数形式的number表达全海洋中鲨鱼的总量。当表示数值的高或低时，number要用high或low修饰。
e.g. In that country, the number of children going to school is higher in cities than in towns and village.
在那个国家，城市儿童入学人数比乡镇 及农村要高。
常与number搭配的动词有grow, fall等。
e.g. The number of families that own cars has been growing quickly recently.近来拥有轿车的家庭数量增长很快。
hear of
a whole shark
each time
a bowl of shark fin soup
cut off
throw back into
not only... but also...
be harmful to
without fin
no longer
slowly die
at the top of the food chain in the ocean's ecosystem
听说
一整只鲨鱼
每次
一碗鱼翅羹
切掉
扔回
不仅......而且.......
对环境有害
没有鱼鳍
不再
慢慢死去
在海洋生态系统食物链的顶端
Phrases summary
bring danger to all ocean life
be endangered
in fact
be caught and traded
the number(s) of
some kinds of
in the last 20 to 30 years
environmental protection groups
such as
develop laws
so far
help save the sharks
Phrases summary
给所有的海洋生物带来危险
濒临灭绝
事实上
被捕杀和交易
......的数量
某些品种
在过去的20到30年
环境保护组织
比如
立法
到目前为止
帮助拯救鲨鱼。
Read the passage again and fill in the blanks with the words in the box.
3b
so although if but when
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.
when
so
3. 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.
so although if but when
but
Although
if
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
Summary
Discussion
Is the shark the only animal that is endangered
South China tiger
华南虎
Crested Ibis
朱 鹮
Golden Monkey
金丝猴
Chiru
藏羚羊
Brown Eared-pheasant
褐马鸡
Wildlife Conservation Day (野生动物保护日)
We should try our best to protect animals.
How can we protect them Discuss in your group.
1. We should raise people’s awareness to protect animals and our environment.
2. We should not wear or buy the clothes made by an animal fur.
3. We should not eat wild and endangered animals.
4. We should protect their living environment.
5.We can develop more severe laws to stop the sale of wild animals.
......
No sale no killing.
没有买卖，就没有杀害。
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