外研版（2019）高一年级下册英语课件必修二 Unit 6 Earth first (1)(共84张PPT)

(共84张PPT)
必修二 Unit 6 Earth first (1) 高一年级 英语
Understanding ideas
SHARKS:
DANGEROUS OR ENDANGERED Reading
Tick the words that you would use to describe sharks. Add any more you can think of. (P62 1)
dangerous powerful endangered
interesting man-eating terrifying
cute intelligent huge

Activity 1:
Tick the words that you would use to describe sharks. Add any more you can think of. (P62 1)
dangerous powerful endangered
interesting man-eating terrifying
cute huge

Activity 1:
Tick the words that you would use to describe sharks. Add any more you can think of.
dangerous powerful endangered
interesting man-eating terrifying
cute simple-minded huge

My choices
Tick the words that you would use to describe sharks. Add any more you can think of.
dangerous powerful endangered
interesting man-eating terrifying
cute simple-minded huge
flexible fierce ocean giant
My choices
Tick the words that you would use to describe sharks. Add any more you can think of.
dangerous powerful endangered
interesting man-eating terrifying
cute simple-minded huge
flexible fierce ocean giant
?
My choices
?
Predict:
1. Which one may the author focus on, dangerous or endangered?
2. What style is the article, narration, argumentation or exposition?

Activity 2:

Please skim the passage to check your prediction.
Underline the key words or sentences you think important.
Activity 3:
1. ...a woman...disappears forever; ...a dangerous animal...
2. People...scared of sharks...; ...wanted them killed.
3. ...the number fell quickly; Finning kills millions of sharks a year.
4. Finning...upon Peter Benchley...Only around six people are
killled by sharks every year.
5. Fortunately...want to protect them...
The key words and sentences
1. ...a woman...disappears forever; ...a dangerous animal...
2. People...scared of sharks...; ...wanted them killed.
3. ...the number fell quickly; Finning kills millions of sharks a year.
4. Finning...upon Peter Benchley...Only around six people are
killled by sharks every year.
5. Fortunately...want to protect them...
The key words and sentences
SHARKS:
DANGEROUS OR ENDANGERED?
So the author may focus on “ENDANGERED”.
The style of writing: argumentation, exposition or both?
Please focus on: what it is about, why the author writes it,
how the author supports his ideas and achieves his purpose.
Activity 4:
Read to get the main idea or topic sentence of each paragraph.
Para 1: main idea or topic sentence
Reading
Observe the poster.
dark background
bloody word
wide mouth
sharp teeth
fierce eyes
target the woman
What may happen next second?
Para 1: Jaws strengthened people’s long-held idea of great
white shark as a dangerous animal.
Reading
Para 1: Jaws strengthened people’s long-held idea of great
white shark as a dangerous animal.
Why do you think it is the main idea of the first paragraph?
Reading
Para 1: Jaws strengthened people’s long-held idea of great
white shark as a dangerous animal.
The opening scene from Jaws is terrifying and it makes people believe that sharks are dangerous.
The more successful Jaws is, the more people are frightened by sharks.
Reading
support
Para 2: main idea or topic sentence
Reading
Para 2: People have always been scared of sharks, but Jaws
made things worse.
Reading
Para 2: People have always been scared of sharks, but Jaws
made things worse.
Why do you think it is the topic sentence?
Reading
Para 2: People have always been scared of sharks, but Jaws
made things worse.

Many people....Some people....Other people....
... nobody cared if sharks were killed...
People just wanted them killed.
Reading
support
(P62 2)
Read the passage and find out how sharks are described in the film Jaws.
Reading
(P62 2)
Read the passage and find out how sharks are described in the film Jaws.
Sharks are described in the film as dangerous and bad animals that eat people.
Reading
Why does the author mention Jaws in the passage?
Think & Share
Why does the author mention Jaws in the passage?
Jaws strengthened people’s long-held idea of great white shark as a dangerous animal.
People have always been scared of sharks, but Jaws made things worse.
Think & Share
What’s wrong with these?
Isn’t shark a dangerous animal?
Shouldn’t people be sacred of sharks?
Think & Share
Para 3: main idea or topic sentence
Reading
Para 3: After 1975, the number of large sharks around
America and the world fell quickly, not only due to fear
of sharks, but also finning.
Reading
What is finning?
Think & Share
What is finning?
Finning is a type of fishing where sharks are caught and their fins cut off. The sharks are thrown back into the sea where they die slowly and painfully.
Think & Share
What is finning?
Finning is a type of fishing (industry).
Sharks are caught and their fins cut off in the industry.
Think & Share
What is finning?
Finning is a type of fishing (industry).
Sharks are caught and their fins cut off in the industry.
purpose?
amount?
Think & Share
What is finning?
Finning is a type of fishing (industry).
Sharks are caught and their fins cut off in the industry.
purpose?
amount?
profit $
Kills millions of sharks a year
Think & Share
Bleed to death.
Be eaten by other creatures.
(Be drowned to death.)
Die from lack of oxygen.
Die from hunger.
Finning
kills
millions
of
sharks
a
year!
What do you feel to see that?

Think & Share
Para 4: main idea or topic sentence
Reading
Para 4:
The first sentence: Finning would have an unexpected effect upon Peter Benchley.
The last sentence: Only around six people are killed by sharks every year.
Reading
?
?
?
Para 4:
The first sentence: Finning would have an unexpected effect upon Peter Benchley. What effect?
The last sentence: Only around six people are killed by sharks every year. How do you know it?
What does the number mean?
Reading
?
Para 4:
What effect? This caused a deep change in him.
He came to see people as a danger to sharks, rather than the other way round.
He fought to protect sharks.
He admitted that his book was wrong about sharks’ behaviour.
Reading
Para 4:
How do you know it? What does the number mean?
Experts have proved it.
It means that sharks are not that dangerous.
Reading
Para 4:
Why does the author mention Peter Benchley and the
experts here?
Reading
Para 4:
The author takes Peter Benchley as an example to
show that people’s attitudes towards sharks are
changing.
Experts’ findings have proved that people misunderstood
sharks and sharks are not that dangerous.
Reading
Para 4: People’s attitudes towards sharks are changing.
Sharks are not that dangerous.
Reading
Para 5: main idea or topic sentence
Reading
Para 5: More people want to protect sharks from extinction.
Reading
Summarize what we have known about the passage:
1. What does the author mainly talk about?
2. Why does the author write the passage?
3. How does the author support his ideas and achieve his
purpose of writing?
Activity 5:
Summarize what we have known about the passage:
1. What does the author mainly talk about?
Summarize what we have known about the passage:
1. What does the author mainly talk about?
To get the main idea of the whole passage, you need to review the title and the main idea of each paragraph.
Review the title:
SHARKS:
DANGEROUS OR ENDANGERED?
Review the main idea of each paragraph:
Para 1: Jaws strengthened people’s long-held idea of great
white shark as a dangerous animal.
Para 2: People have always been scared of sharks, but Jaws
made things worse.
Review the main idea of each paragraph:
Para 3: After 1975, the number of large sharks around
the world fell quickly, not only due to fear of
sharks, but also finning.
Para 4: People’s attitudes towards sharks are changing.
Sharks are not that dangerous.
Para 5: More people want to protect sharks from extinction.
Summarize what we have known about the passage:
1. What does the author mainly talk about?
The author tells us that due to fear of sharks and finning, people kill millions of sharks a year, so sharks are endangered. In fact, sharks are not that dangerous as people thought. Today, more people want to protect them from extinction.
Summarize what we have known about the passage:
2. Why does the author write the passage?
2. Choose the author’s purpose in writing it. (P64 3)
1) To criticise Peter Benchley’s misleading description of
sharks in his book and advocate the protection of sharks.
2) To explain people’s misunderstanding of sharks and
raise awareness of shark protection.
3) To inform people about sharks and recommend the film
and the book to them.
2. Choose the author’s purpose in writing it.
1) To criticise Peter Benchley’s misleading description of
sharks in his book and advocate the protection of sharks.
2) To explain people’s misunderstanding of sharks and
raise awareness of shark protection.
3) To inform people about sharks and recommend the film
and the book to them.
Summarize what we have known about the passage:
3. How does the author support his ideas and achieve his
purpose of writing?
To explain people’s misunderstanding of sharks and raise awareness of shark protection.
To explain people’s misunderstanding of sharks
and raise awareness of shark protection.
Exposition
Read again to get a better understanding of how people’s attitudes towards sharks have changed. (P64 4)
Activity 6:
Keys
Keys

Keys
Activity 7:
Think & Share
To our delight, people’s attitudes towards sharks have changed and more people want to protect sharks from extinction.
Do you think the awareness of shark protection is enough?
To our delight, people’s attitudes towards sharks have changed and more people want to protect sharks from extinction.
Do you think the awareness of shark protection is enough?
No, it’s far from enough. We need to take action.
Think & Share
How to protect sharks?
What can people do to protect them?
Think & Share
Know more about sharks:
How many kinds of sharks are there in the world?
How many are endangered? What are they?
How to protect sharks?
Know more about shark fishing: legal or illegal?
The large consumers of shark fins?
Other shark products?
...
We have a lot to learn about.
How to protect sharks?
What can people do to protect sharks?
Governments?
Fishermen?
Others?
When the buying stops,
the killing can too.
When the buying stops,
the killing can too.
This can help
elephants
tigers
bears
...

While
how about them?
Albatross
The eighth continent
Summary
Environmental protection is an eternal topic and a tough job. There is a lot for all of us to understand and to do.
Take action now to understand the creatures on the earth and to protect the earth.
You can begin with “the eighth continent 第八大陆” and Shiver《鲨之殇》.
Homework
1. Do research on how to protect sharks.
2. Continue writing the passage to offer ways to protect
sharks. You can start your writing like this:
Some measures have been taken.
...
...
...
Also, you can ...
Thank You!