Unit 13 We're trying to save the earth! Section A (3a~3b) 课件(共27张PPT)

(共27张PPT)
Unit 13
We're trying to save the earth!
Section A (3a~3b)
Let’s watch a video
What’s the video mainly about
How do you feel after watching it
Do you know some endangered animals
能理解并运用下列重点单词和短语：cruel, harmful, industry, law, scientific, be harmful to, at the top of, the food chain等。
1
2
能通过略读精读的阅读策略和识别文章中的连接词，掌握文章大意，了解鲨鱼现状和保护方式。
目标:能通过略读精读的阅读策略和识别文章中的连接词，掌握文章大意，了解鲨鱼现状和保护方式
Look through 3a~3b and underline the words and phrases you don’t know. Look up the words in a dictionary and write down their meanings, after that let's check.
at the top of
harmful
cruel
be harmful to
law
scientific
chain
the food chain
ecosystem
industry
fin
shark
Activity 1
Free talk
What are they Where are they from
Shark fin
Shark fin soup
Activity 2
They are from sharks.
Do you still want to try the shark fin soup
Do you know how to get the shark fin
Activity 3
Pre-reading
Look at the photo, the questions in 3a and the title of the story on page 99. Then answer the questions below.
What can you see in the picture
What does the passage may talk about
A shark.
It may talk about the sharks.
Skimming
Read the title, the first and last sentences in each paragraphs and match the main ideas.
Para.1 A. Two groups against “finning”.
Para.2 B. Something about shark fin soup.
Para.3 C. Sharks are endangered now.
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
How governments can help
Two environmental groups against “finning”
southern China
70 million
WildAid & the WWF
Scanning
develop laws to stop the
sale of shark fins.
Careful reading
Read para.1 carefully and judge the sentences.
Task 1
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 fin soup.
F
T
Task 2
Read para.2 carefully and fill in the blanks.
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
Task 3
Read para.3 carefully and judge the sentences.
WildAid and the WWF are environmental protection groups in China.
2. Two environmental groups appeal to establish laws to stop the sale of shark fins.
3. Shark’s fins are good for health.
F
T
F
around the world
So far, no scientific studies have shown that shark fins are good for health.
美国野生救援协会 (WildAid)是一个非营利性的动物及栖息地环境保护机构，1999年在美国注册，总部设在美国旧金山，负责监控和协调世界各国各个项目开展的情况。它在纽约、曼谷、伦敦、华盛顿、北京、海参崴等地设有办事处。这一机构的宗旨是世界范围的野生动物保护及救助，其重要工作之一是野生动物保护行动(ACAP)。
世界自然基金会 (WWF)，英文全称作 World Wide Fund For Nature，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。这一国际组织成立于1961年，致力于保护世界生物多样性、确保可再生自然资源的可持续利用，以及推动降低污染和减少浪费性消费的行动。迄今，该组织在六大洲的153个国家发起或完成了约12000个环保项目。
Read the passage and circle the linking words, then say the purposes of them.
Activity 4
Linking word or phrase Purpose of linking word or phrase
so expressing a result
as, because, since giving reasons
but, however, though expressing a difference
not only... but also adding information
or giving a choice
when, while expressing two things happening at the same time
if expressing might happen or be true
3b
Read the passage again and fill in the blanks
with the words in the box.
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.
so
when
so although if but when
Many think that sharks are too strong to be
endangered, _________ they are wrong.
_________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
so although if but when
Activity 5
Work in groups. Find out some language points that you think are important and share their use with your classmates and give some examples.
Language point
1.A shark can no longer swim and slowly dies.
鲨鱼不能再游泳然后慢慢死掉。
no longer意思是“不再”
e.g. I’m no longer a student.
我不再是个学生了。
Language point
【辨析】no longer和not…any longer
2) 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。)
1) 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。)
Language point
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。
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also有时可以省略。
e.g. She not only plays well, but also writes music.
她不但很会演奏，而且还会作曲。
Not only men but also women were chosen.
不仅仅是男的，女的也有被选中的。
Language point
A.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。
B. 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。
Language point
2) be harmful to 对……有害
e.g. Smoking is harmful to health.
吸烟有害健康。
Playing computer games too much is harmful to students.
电脑游戏玩太多对学生有害。
Language point
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 在……顶部或顶端
e.g. I looked at the top of his head, his hair shiny and parted
smoothly.我看他的头顶, 头发闪亮且平滑地分开。
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。
Language point
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。
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。
常与number搭配的动词还有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。
Activity 6
Group work
What can we do to save the sharks Work with your partners and make a poster about shark protection.
Retelling time
Retell the passage according to the mind map.
endangered
stop the sale of shark fins
slowly dies
over 90 percent
WildAid