外研版（2019）必修第二册Unit 6 Earth first Understanding ideas课件(共40张PPT)

(共40张PPT)
Unit 6
Unit 6 Earth First
SHARKS:
DANGEROUS OR ENDANGERED
To read for the main idea of the passage.
To predict what the passage will talk about according to the title, pictures.
To read for details and figure out author's purposes.
To understand the changes of the author's attitudes towards sharks.
To express ideas on how to protect endangered sharks based on the understanding of the text.
To learn and then use some key words and expressions.
Do you know anything about sharks Share them in the class.
n. 鲨（鱼）
There are over three hundred different species of shark. The unusual thing about all these fish is the fact that they have no bones! Their entire skeleton (骨架) is made up of cartilage (软骨). Different sharks have different shapes of teeth. The great white shark has very sharp teeth that are able to tear big pieces of its prey (猎物). Most of sharks feed on sea creatures like fish, squid and crabs. The great white shark has been known to eat seals.
Sharks have excellent sight. They also have a very good sense of hearing and pick up sounds of struggling fish far away, sounds that would not be heard to the human ear. They also have a very keen sense of smell and are attracted by the smell of blood coming from an injured fish.
What's your first impression of sharks
Tick the words that you would use to describe sharks.
□ dangerous □ powerful
□ endangered □ interesting
□ man-eating □ terrifying
□ cute □ intelligent
□ huge
Add any more words you can think of to describe sharks and compare your choices with the class. Share what you know about sharks.
More words: flexible, fierce, ocean giant, sharp teeth...
Have you ever seen the film Jaws
Introduce the plot of the film.
Director: Steven Spielberg
Writers: Peter Benchley
(screenplay), Carl Gottlieb
(screenplay)
1. What's your favourite sea animal Why
2. What can we do to make a contribution to
sea animal protection Give your
suggestions.
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 humans.
Match the main idea with its corresponding paragraph.
Paragraph 1 A. Peter admitted his mistakes and began
to fight for protecting sharks.
Paragraph 2 B. The successful film gave people the
impression that sharks were dangerous.
Paragraph 3 C. Some people preferred to learn more about sharks after watching the film Jaws.
Paragraph 4 D. Jaws caused people to react differently.
Paragraph 5 E. Finning speeds up the drop in numbers
of sharks.
n. 鱼鳍
v.切去（鱼的）鳍
Work out the structure of the text.
Sharks:
Dangerous or Endangered
Para 1 + Para 2
_____________
Para 3 + Para 4
_____________
Para 5
______________________________________________________________________________
dangerous
endangered
More people want to protect sharks from extinction.
n. 灭绝，绝种）
Choose the author’s purpose in writing the passage.
If we can figure out the author’s purpose, then we can understand the text more deeply.
作者写作有三个基本目的:
说服读者(to persuade)，告知读者(to inform)，娱乐读者(to entertain)。
可以通过文章的体裁来大致确定作者的写作目的。例如：
P (Persuade): 报纸上的社论或广告大多以说服读者为目的；I (Inform): 教科书、百科全书、字典、食谱或产品说明书等图书或文章多以告知读者信息为目的；E (Entertain): 童话、漫画或小说等图书多以娱乐读者为目的。
还可以通过一些问题来确定作者的写作目的：
P (Persuade): Did the author try to change your mind Did the author try to make you do or believe something
I (Inform): Did the author try to share information with you Did the author teach you something new Did the author tell you how to do something
E (Entertain): Did the author try to make you laugh Did the author make you relax & enjoy the story
1. To criticize Peter Benchley’s misleading description of sharks in his book and advocate the protection of sharks.
2. To explain peoples' misunderstanding of sharks and raise awareness of shark protection.
3. To inform people about sharks and recommend the film and the book to them.
Choose the author’s purpose in writing the passage.
Please fill in the blanks in the chart.
scene
bad
killed
fell / dropped
Finning
dead
Please complete the form introducing the film Jaws.
Jaws
The release time 1. ________
Based on the novel by Peter Benchley
The opening scene While a woman is swimming at 2. ________ in a dark sea, she is attacked by a shark.
1975
night
The plot A great white shark attacks and kills swimmers.
The result It was a great success, attracting huge 3. _______ and winning many 4. ______.
The influences ★ People became more 5. ________ of
sharks.
★ Many people believed that sharks
were bad animals.
★ Some people stopped 6. ________ in
the sea.
★ Other people started fishing and
killing sharks.
audiences
awards
frightened
swimming
Please write down what the underlined words refer to according to the text.
1. We see a woman swimming at night in a
dark sea. Suddenly, she is pulled underwater.
She surfaces, cries in fear, then disappears
forever. This is the opening scene from the
1975 film Jaws, showing a shark attack.
______________________________________
______________________________________
______________________________________
A woman is swimming at night in a dark sea. Suddenly, she is pulled underwater. She surfaces, cries in fear, then disappears forever
2. It strengthened people's long-held idea of the
great white shark as a dangerous animal.
______________________________________
3. Other people started fishing for sharks,
killing as many as they could.
______________________________________
the 1975 film Jaws
other people
4. After 1975, the number of large sharks
around America fell quickly, and soon fell
around the world. This was not only due to
fear of sharks, but also finning.
_______________________________________
_______________________________________
5. Benchley saw sharks being killed and this
caused a deep change in him.
_______________________________________
The number of large sharks around America fell quickly, and soon fell around the world.
Benchley saw sharks being killed.
6. Today, as we learn more about sharks,
more people than ever want to protect
them from extinction.
____________________________________
sharks
Complete the chart showing how attitudes towards sharks have changed with words and expressions from the passage.
People have always been scared of sharks because they are considered 1.____________________.
as dangerous animals
People have a normal fear of sharks.
v. 使（某人）惊恐，吓唬
People who saw the film Jaws believed 2. ____________________________________.
Some people stopped 3.__________________ while others started to 4. _______________.
The number of large sharks fell quickly due to 5. __________________________.
sharks were bad animals that ate humans
swimming in the sea
fish for sharks
fear of sharks and finning
People are more frightened of sharks.
由于，因为
Peter Benchley admitted that his book 6. _________________________________ and fought 7._________ them.
Experts have proved that 8. _____________________________, and they attack us by mistake.
Some people became interested in 9. _____________________ and more are willing to 10. _______________________________.
was wrong about sharks' behaviour
to protect
sharks do not see people as food
understanding sharks
protect sharks from extinction
More people are against finning and wish to protect sharks.
1. What other animals do you know are endangered (You can surf the internet to find out more information.)
2. What are changes of peoples' attitudes towards these endangered animals
v. (通常指用呼吸设备的)潜水
Peter Benchley might feel sad for the sharks being killed.
Or he might feel regretful for depicting the great white shark as a dangerous animal in his book.
Or he might also feel angry about finning.
1. How do you think Peter Benchley felt after diving in 1980
2. What other films or books do you know that feature wild animals Do they “paint” a good or bad picture of these animals Say how the animals are described.
Below is the summary of the text with some content missing. Choose the right item from the box and make the summary complete. Change the form when necessary.
fin, protect, fortunate, danger, drop
Jaws, a 1975 film, strengthened people's long-held idea of the great white shark as a(n) 1. __________ animal.
dangerous
fin, protect, fortunate, danger, drop
After 1975, many people started fishing for sharks and the number of sharks quickly 2. ________ all over the world. 3. ________ is a type of fishing where sharks are caught and their fins cut off, which kills millions of sharks a year. 4. __________, some people who watched the film became interested in understanding and protecting sharks.
dropped
Finning
Fortunately
In 1980, Peter Benchley, who wrote the book the film Jaws was based on, fought to 5. ________ sharks as he became alarmed by the practice of finning.
fin, protect, fortunate, danger, drop
protect
How do you like the title of this passage Is it a good or bad title Can you give another title to it
SHARKS:
DANGEROUS OR ENDANGERED
Indicate the specific topic; Attract readers’ interest
Work in pairs to find out more information about other wild animals that are facing serious threats or attacks.
Think about how to protect them from being killed and extinct.
Try to use no more than 60 words to make a summary of the passage.