(共63张PPT)
Unit 6 Earth first
Understanding ideas
Sharks: Dangerous or
Endangered
By the end of this class, you are expected to be able to:
guess the writing purpose of the passage by analyzing the meaning of the title.
analyze the structure of the passage by summarizing the main idea of each paragraph.
briefly talk about how people’s attitudes towards animals are affected by films or books with the help of the phrases and expressions we learned during class.
Learning objectives
What's your favorite sea animal Do you know anything about sharks Share them in the class.
Warming up
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(生物) like fish, squid(鱿鱼) and crabs(蟹). The great white shark has been known to eat seals(海豹).
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
Brainstorm:
What will you think of when we talk about sharks
dangerous
powerful
scaring
man-eating
terrifying
huge
cute
intelligent
A picture is worth a thousand words.
Different pictures voice different feelings.
Have you ever seen the film Jaws
Introduce the plot of the film.
Director: Steven Spielberg
Writers: Peter Benchley
(screenplay), Carl Gottlieb
(screenplay)
Pre-reading
Look at the title and the picture and predict what will be talked about in the passage.
Can you guess the writing purpose
of this passage
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)。
Careful reading
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
Scan the passage and choose the author’s purpose in writing the passage. (2 mins)
To criticize Peter Benchley’s misleading description of sharks in his book and advocate the protection of sharks.
To explain people’s misunderstanding of sharks and raise awareness of shark protection.
To inform people about sharks and recommend the film and the book to them.
1st reading
How does the author develop the passage to express his purpose
Read the passage carefully and summarize the main idea of each paragraph.
2nd reading
Sharks: Dangerous or endangered
2nd reading
Read paragraph one and summarize its main idea. (1 min)
vt. to make something stronger, powerful or more effective
strong adj strength n
strengthen v.
Main idea:
The film Jaws strengthened the idea of shark as a dangerous animal.
2nd reading
Read paragraph two and summarize its main idea. (1 min)
Main idea:
The film Jaws made people become more scared of sharks and kill them.
phrase be afraid of or be frightened of sth.
scare v. scared adj.
2nd reading
Read paragraph three and summarize its main idea. (1 min)
Main idea:
The number of large sharks fell quickly due to fear of sharks and finning.
phrase because of
Read paragraph four and summarize its main idea. (2 mins)
2nd reading
v. to agree that something is true, especially unwillingly
She admitted (that) she had made a mistake.
She admitted making a mistake.
At first she denied making a mistake, but she later admitted (to) it.
Main idea:
Peter found that his book was wrong about sharks.
2. Finning would have an unexpected effect upon Peter
Benchley, the man who wrote the book the film Jaws
was based on.
Peter Benchley did not expect that finning would have a great effect on him.
气温升高会影响到海平面高度、旱情发生频率及更多方面。
A rise in temperature will have an effect on sea levels, drought frequency and more.
Paraphrase
have an effect on: to affect or influence someone or something
Read paragraph four and summarize its main idea. (2 mins)
Main idea:
Peter found that his book was wrong about sharks.
2nd reading
3. In 1980, Benchley was diving when he came across
an awful sight.
我们正要出去,突然下起雨来。
我在我家乡的一个书店偶然发现了这本书。
when: at that / this time, used in an adverbial clause of time
We were about to go out when it started to rain.
I came across this book in a bookshop in my hometown.
come across: to meet, find, or discover someone or something by chance
Read paragraph four and summarize its main idea. (2 mins)
Main idea:
Peter found that his book was wrong about sharks.
2nd reading
4. He came to see people as a danger to sharks, rather than the other way round.
come to do: to finally reach a state in which sth. happens or you do sth.
过了几个月,她终于喜欢上了新老师。
She had come to like the new teacher over the months.
Paraphrase
He finally started to realise that people are a danger to sharks, rather than the opposite.
rather than: instead of; used esp. when you prefer one thing to another
我今晚想待在家,而不是去外面。
I’d like to stay at home this evening rather than go out.
2nd reading
Read paragraph five and summarize its main idea.
Main idea:
More people want to protect sharks now.
protect… from/ against…
phrase to keep someone or something safe from injury, damage or loss
It’s important to protect your skin from the harmful effects of the sun.
Vaccination can protect you against COVID-19.
Now try to get the structure of the passage.
(1 min)
2nd reading
Dangerous
Endangered
More people want to protect sharks from extinction.
Sharks: Dangerous or endangered
Para.1:
The film Jaws strengthened idea of shark as a dangerous animal.
Para.2:
The film Jaws made people become more scared of sharks and kill them.
Para.3:
Number of large sharks fell quickly due to fear of sharks and finning.
Para.4:
Peter found that his book was wrong about sharks.
Para.5:
More people want to protect sharks now.
The structure of the text
Sharks:
dangerous or endangered
Para.1+Para.2
dangerous
Para.3+Para.4
endangered
Para.5
More people want to protect
sharks from extinction.
question
analysis
conclusion
exposition
(说明文)
Can you find out how people’s attitudes towards sharks have changed
Complete the chart showing how attitudes towards sharks have changed with words and expressions from the passage.
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.
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.
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.
Based on paragraph 4, can you guess how Peter Benchley felt after diving in 1980
He might feel sad for the sharks being killed;
He might feel regretful for depicting the great white shark as a dangerous animal in his book;
He might also feel angry about finning.
3rd reading
Why did the number of sharks fall quickly
This was not only due to fear of sharks,
but also finning.
finning
People caught sharks and cut off their fins.
What will happen to the sharks without their fins
The sharks are thrown back into the sea where they die slowly and painfully.
A bowl of
shark fin soup
A life of
a shark
1
2
3
Jaw makes people afraid of sharks
People were scared and killed sharks
The number of sharks fell quickly
SHARKS:
DANGEROUS OR ENDANGERED
4
5
More people want to help
People realise sharks are endngered
Behind the changes in attitudes,
what has changed in people
Now retell the passage according to the chart.
Period 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.
Life of Pi. It painted a good picture of the tiger.
It was described dangerous at first, but the tiger and Pi survived harmoniously until they were saved.
Post reading
Think&Share
Watch a video and write down what you have seen.
protect wildlife for a healthy planet
Each and every animal on earth has
as much right to be here as you and me.
The globe is a big family. Just as President Xi said, We should love animals, as we love ourselves. We should live in harmony with every creature.
1. What may follow the last paragragh of the text
2. Continue to write the passage( not more than 80 words) .
You can use the expressions below to help you.
Some steps have been taken...
Law or rules...
Governments or organizations...
Experts...
Also, we can...
...don’t buy shark products...
...call on others to resist sharks products...
Assignment
1. We see a woman swimming at night in a dark sea.
see a woman swimming at night
= see a woman who is swimming at night
swimming at night 是一个现在分词短语,在句中作宾语补足语,修饰woman,补充更多信息,表示看见一个女人在夜晚游泳。
Language points
现在分词作宾语补足有两个典型的结构:
1) “see / smell / hear / feel /…+宾语+现在分词”
表示动作正在进行。
2) “have / get / …+宾语+现在分词”,表示
“让……一直做某事”。
eg Do you smell something burning
The farmers had the tractor (拖拉机) working day and night at harvest time.
强调“烧糊了”这个动作正在进行。
强调拖拉机一直在运转。
2. She surfaces, cries in fear, then disappears forever.
in fear: used when you are afraid or worried that something bad is going to happen
担心;害怕
eg The children looked at her in fear.
3. People have always been scared of sharks, but Jaws made things worse.
scare v. to make someone feel frightened
使惊恐,吓唬
eg You scared me.
Loud noises can scare animals or birds.
scare n. a sudden feeling of fear
惊恐,惊吓
eg You really gave us a scare!
scared adj. frightened of something, or nervous about something
害怕……的; 对……感到惊慌(恐惧)的
eg At first, he was really scared.
【拓展】
scare sb. into doing sth.
威胁/恐吓某人做某事
scare ... away / off 把……吓跑
be scared (that) 害怕……
scare
v.
n.
scared adj.
be scared to do sth. 害怕做某事
be scared of (doing) sth. 害怕(做)某事
【语境应用】根据汉语意思补全下列句子(每空一词)。
1) 煤气味把我吓了一跳。
The smell of gas ______ ____ ___ ____ ______.
2) 她轻轻地移动以免把鸟儿吓跑。
She moved quietly to avoid ________ ________ ________ _______.
3)当小偷进入房子的时候,狗会把他们吓跑。
When the thieves enter the house, the dog will ________
________ ________ ________ ________.
gave me quite a
scaring the birds
them into running away
scare
away / off
scare
本课中出现的表示“害怕地”的短语:
People have been scared of sharks, but Jaws made things worse.
It made people frightened of sharks, especially of the great white shark.
Some people stopped swimming in the sea, afraid of the horrible creature from the film.
4. Some people stopped swimming in the sea, afraid of the horrible creature from the film.
【分析】形容词短语作状语
形容词(短语)作状语,说明句子主语的特点或处于某种状态。形容词(短语)作状语可以表示方式、原因或伴随状况等,可位于句首、句末或句中, 常用逗号与句子其他成分隔开。
【语境应用】单句语法填空。
1) The little match girl was walking in the street, cold and ___________ (hunger).
2) ___________ ( surprise) and happy, Tony stood up and
accepted the prize.
3) He came back after a trip, ___________(tire) but happy.
4) He may be late. ___________ still, he may not come at all.
他可能会迟到。更糟的是,他可能不会来。
hunger
Surprised
tired
Worse
5. This was not only due to fear of sharks, but also finning.
due to: because of something
由于,因为 (引导表语或状语)
to为介词
eg The flight was delayed due to bad weather.
The accident was due to his carelessness.
not only…but also…意为“不但……而且……”,连接两个并列成分
【归纳】
due adj. 预定的; 到期的
be due to do sth. 预期做某事, 预定要做某事
be due to sth./sb. 归因于某事/某人; 欠某人……
be due for sth. 应有某物; 应得到某物
【联想】表示 “由于, 因为”的短语还有:
because of, as a result of, thanks to, on account of, owing to等。
due to, thanks to, because of, owing to
共同点:都有“由于”“因为”的意思,都是介词短语,
因此后面不可接从句或动词不定式。
不同点:1)due to一般只用作表语。
2)because of只能用作状语。
3)owing to既可以用作状语,也可以用作表语,平常多用于前一种情况,它引导的状语必须是修饰全句的,因此严格来讲应用逗号和主句分开。
4)thanks to只能用作状语,可以表达正面意思,“幸亏”,也可用于讽刺口吻中(近于讽刺口吻的“感谢”)。
【语境应用】根据汉语意思完成句子。
1) The policeman said the accident last night was _____________ driving.
警察说昨晚的事故是由于粗心驾驶造成的。
2) His new book ___________________ next year.
他的新书预计明年出版。
due to careless
is due to be published
6. Sharks don't target humans.
target v. to make something have an effect on a particular limited group or area
把……作为目标
eg The advertisement was designed to target a mass audience.
target n. something that you are trying to achieve, such as a total, an amount, or a time
〔想要达到的〕目标; 指标
eg She has always set herself very high targets.
target n. an object, person, or place that is deliberately chosen to be attacked
〔攻击的〕目标,对象
eg Recently she has been the target of a series of unfriendly phone calls.
scare sb. into doing sth.
威胁/恐吓某人做某事
scare ... away / off 把……吓跑
be scared (that) 害怕……
scare
v.
n.
scared adj.
be scared to do sth. 害怕做某事
be scared of (doing) sth. 害怕(做)某事
【语境应用】根据汉语意思补全下面句子(每空一词)。
1) 给自己制定有望达到的目标。
____ ________ ________ that you can reasonably hope to achieve.
2) 这是一本以单身男士为读者群的新杂志。
This is a new magazine that ________ ________ ________.
Set yourself targets
targets single men
target, goal, object
target 指试图达到的目标、指标,通常为以某种方式正式记录的目标,如由雇主或政府委员会等制定;常为具体的数字,如销售量、考试及格率、日期等。 The university will reach its target of 5,000 students next September.
goal 指希望达到的目标、目的,通常指长远目标,需经坚持不懈的努力奋斗才能达到的最终目标。 You need to set yourself some long-term goals.
object 指目的、目标、宗旨,强调个人或需求而决定的目标、目的 The object is to educate people about road safety.
7. Fortunately, not everyone who watched the film Jaws became afraid of sharks— some became interested in understanding them.
fortunately adv. happening because of good luck 幸运地
eg Fortunately, everything worked out all right in the end.
同根词
fortune n. 运气;机会;财产
unfortunately adv. 不幸地
fortunate adj. 幸运的
fortunately adv. 幸运地
【拓展】
【语境应用】根据括号内的提示完成下列句子。
1) She ___________________ (运气好) to escape injury in that accident.
2) _____________ (遗憾的是), he has failed in the English exam three times.
3) I have been ______________________ (很幸运能去游览) many parts of the world.
4) ___________(幸运的是) they returned safely.
had the good fortune
Unfortunately
fortunate enough to visit
Fortunately