英语九年级全一册Unit 13 We're trying to save the earth SectionA 3a-3b课件 （共有34张ppt）

(共34张PPT)
Section A
3a-3b
Unit 13
We’re trying to save the earth！
Learning Aims
1.To practice the students’ reading skill.
2.To learn how to use the conjunctions: so, if, but, when, although
3.To think about ways of protecting the wild animals.
Revision
这河流过去是如此的清澈。
The river used to be so clean.
我们在努力拯救地球。
We’re trying to save the earth.
Translate the sentences!
Revision
Translate the sentences!
空气被严重污染。
The air is badly polluted.
People throw things away every day.
人们每天扔掉废弃物。
Warming up
Save the earth ! Save the animals !
Warming up
In your opinion, which animals need be saved
The earth is badly polluted.
What should we do to save the earth
Warming up
Let’s take action (采取行动)
Turn off the lights
when you leave a room.
Recycle books and paper.
Take buses instead of driving cars.
Role- play the conversation
what are your ideas for solving these problems
Read the title, the first and last sentences in each paragraphs and match the main ideas.
Para. 1
Para. 2
Para. 3
Environmental protection groups
are against “finning”.
Some basic facts about shark fin soup.
基本事实
Some important facts about killing sharks.
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.
While you read
Read Paragraph 1 and judge the sentences.
F
T
×
√
Read Paragraph 2 and fill in the blanks
1. People _____ ____ sharks’ fins and throw the sharks back into the ocean. 2. This is not only cruel but also __ ___the environment.
3.Sharks are __ __ __ of the food chain
in the ocean’s ecosystem.
4.The numbers of some kinds of sharks
__ ___by over 90 percent in the last 20 to 30 years.
Q1: What do people do to sharks
People______ sharks, _______their fins and_____ the shark _________the ocean.
as a result
It’s not only ______, but also_______ to the environment.
Without a fin, a shark can no longer _____ and slowly______.
Q2:What does the writer think of people’s behavior
catch
throw
back into
cut off
swim
dies
cruel
harmful
Para 2
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 ecosystem
If sharks’ numbers drop too low, It will bring danger to all ocean life.
According to Paragraph 1,2 and fill in the chart.
people enjoy _____________________
fishermen ___________, ___________, then _______________________
________________________________decreased quickly
a bowl of shark fin soup
catch sharks
cut their fins
throw them into the ocean
The numbers of some kind of sharks
/d ’kri:s/减少
Read Paragraph 3 and judge the sentences.
F
T
F
WildAid and the WWF are environmental protection groups in China.
Two environmental groups appeal to establish laws to stop sale shark fins.
Shark’s fins are good for health.
×
×
√
Where shark fin soup is popular
Number of sharks caught and traded every year
How governments can help
Two environmental groups against “finning”
in southern China
around 70 million
develop lows to stop
the sale of shark fins
WildAid and the WWF
3a
Read the passage about sharks and complete the fact sheet below.
3b
Read the passage again and fill in the blanks with the words in the box.
so although if but when
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
if
3b
Read the passage again and fill in the blanks with the words in the box.
so although if but when
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.
but
Although
if
---When people catch sharks, they cut off their
fins and throw the sharks back into the ocean.
cruel
Without a fin, a shark can no longer swim
and slowly dies.
harmful
1.Sharks are at the top of the food
chain in the ocean’s ecosystem.
2.If their numbers drop too low, it will
bring danger to all ocean life.
2.The numbers of some kinds of
sharks have fallen by over 90
percent in the last 20 to 30 years.
1.Around 70 million sharks are
caught and traded in this industry
every year.
Para2.
Retelling 复述
in fact
two
different
opinions
endangered
①
②
&
2.___________________________________
1.____________________________________
Q1: Are shark fins good for health
Q2: What have people done against finning
No scientific studies have shown that shark fins are good for health.
Environmental protection groups
Teach the public about finning
Ask governments to develop laws to stop the sales of shark fins
Para 3
A. 理论的 B.科学的
1. 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。
此句复数形式的numbers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。
Language points
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。
5. Environment protection groups around
the world, such as WildAid and the WWF,
are teaching the public about “finning”.
世界各地的环境保护组织，如野生救援协
会和世界自然基金会，都在教育公众有关
“猎翅”的行为。
1) 句中fin本为名词，指 “鱼鳍”。此句中的
finning由动词化的fin（割鲨鱼鳍以获取
鱼翅）的-ing形式转化而成，指课文中所
陈述的 “猎翅”这一行为。
2) WildAid和WWF组织
WildAid（美国野生救援协会）是保护野生动物及栖息地环境的一个非盈利性的机构，1999年注册成立，其宗旨是保护及救助世界范围内的野生动物；WWF（世界自然基金会）英文全称为World Wide Fund for Nature，成立于1961年，是享有国际盛誉，全球最大的独立性非政府环境保护组织之一。
我都 学会了!
本课句型
Summary
1.残酷的；残忍的 _____________
2.有害的 _____________
3. 工业；行业 _____________
4.法律；法规 _____________
5.科学上的；科学的 ____________

Exercise:
scientific
harmful
industry
law
cruel

Exercise:
6.对……有害 _________________
7.在……顶部或顶端 ______________
8.食物链 ______________
9.采取行动 _____________
be harmful to
at the top of
the food chain
take action
II. 单项选择。
1. —Are you going to _____ any of the events
—Yes. Maybe long jump and high jump.
A. take part in B. join
C. attend D. join in
2. I can’t afford ____ him an expensive birthday present.
A. to buy B. buying
C. for buying D. buy
3. —Remember to ____ the lights when you leave the room.
—OK. I will.
A. turn on B. turn down
C. turn up D. turn off
4. The girl always has some money to ___ snacks.
A. spend B. pay for
C. take D. cost
5. —Look! _____ boys are playing on the
playground.
—Yes. _____ them is about 200.
A. The number of; A number of
B. The number of; The number of
C. A number of; The number of
D. A number of; A number of
III. 根据汉语提示完成句子。
1. 我们必须采取行动来阻止他们。
We must _____ ______ to stop them.
2. 我从没听说过这个人。
I have never ____ ____ such a man.
take action
heard of
3. 我们乐意尽力帮你摆脱困境。
We are glad to do what we can do ___ ___ ___.
4. 到目前为止，我已经交了二十个朋友。
____ ____, I have made twenty friends.
5. 实际上，她从没去过那儿。
____ ____, she has never been there.
In fact
to help out
So far
1. Review the new words and expressions you’ve learned today.
2. Write 5 measures to protect the environment.
3. Preview the new words and expressions.
Homework
Thank you !