资源简介

(共48张PPT)
33002
Understanding ideas
MACQUARIE ISLAND:
from Chaos to Conservation
chaos: a state of complete confusion
01. Lead in
Look at the satellite images and add some information of Aral Sea.
Background: Located in Central Asia, between Kazakhstam to the north and Uzbekistan to the south
The fourth largest lake (1960s)
Just four smaller lakes (NOW)
1. 背景信息（Background）
Location: Located in Central Asia, between Kazakhstan to the north and Uzbekistan to the south.
位置：位于中亚，北邻哈萨克斯坦，南邻乌兹别克斯坦。
Past glory: In the 1960s, it was the fourth largest lake in the world.
昔日辉煌：在 20 世纪 60 年代，它曾是世界第四大湖。
Current situation: Now, it has shrunk into just four smaller lakes.
现状：如今，它已萎缩成四个较小的湖泊。
卫星图变化解读（Satellite Images）
这三张卫星图直观地展示了咸海的萎缩过程：
1990 年：湖面依然广阔，水体呈深蓝色，是一个完整的大湖。
2000 年：湖面明显缩小，水体分裂成几部分，颜色变浅，露出大片湖底。
2010 年：萎缩加剧，大部分区域变成了干涸的盐滩，仅存几小片水域。
Lead in
Look at the satellite images and add some information of Aral Sea.
1.What is happening to the area according to the satellite images
2.What do you think a later satellite image would show
3. What do you think caused these changes
1.What is happening to the area according to the satellite images
The satellite images show that the Aral Sea is shrinking dramatically over time. From 1990 to 2010, the total water area has decreased significantly, and the once-large lake has split into several much smaller, disconnected bodies of water.
2.What do you think a later satellite image would show
If the trend continues, a later satellite image would likely show even smaller water bodies, possibly with some parts of the lake completely drying up. The remaining water might be more fragmented, and the exposed seabed could expand further.
3. What do you think caused these changes
The main causes are:
Overuse of water for irrigation: Large-scale irrigation projects, especially for cotton farming, diverted most of the water from the Amu Darya and Syr Darya rivers that fed the Aral Sea.
Poor water management: Inefficient irrigation systems and lack of sustainable water policies led to massive water waste.
Climate change: Rising temperatures and changing rainfall patterns have also contributed to increased evaporation and reduced water inflow.
33002
1 What animals can you see in the picture
birds
penguins
The picture is taken in Macquarie [m kw r ] Island(麦夸里岛).
Look at the picture below and answer the questions.
1
Pre-reading
Let’s know more about Macquarie Island.
Pre-reading
Pre-reading
Read the title and predict the main idea of the passage.
Macquarie Island:
from Chaos to Conservation
n.a state of complete confusion and lack of order.=mess, disorder
/'ke s/ n.混乱；紊乱
/k ns 've n/ n.（对自然环境的）保护
n. protection of the natural environment= protection
33002
Macquarie Island:
Chaos
to
Conservation
from
Para. 1
Para. 3
Para. 4
Para. 6
a. The big problem brought by humans.
b. The location and natural characteristics of
Macquarie Island.
c. Rabbits multiplied and caused soil erosion and
increasing.
d. People tried to tackle the problem and failed.
e. The author is trying to tackle the problem.
f. The situation on Macquarie Island was getting worse.
Para. 2
Para. 5
Part Ⅰ The beauty of the island.
the island.
Part Ⅱ The chaotic of the island.
Part Ⅲ The conservation of the island.
Match the main ideas with their paragraphs.
While-reading
Careful reading
1. Read Para.1 quickly and fill in the blanks.
I am standing on Macquarie Island, in the South-west Pacific Ocean, halfway between Australia and Antarctica. Strong winds and stormy seas have helped sculpt its long, thin shape. The green grass and bare rock of its landscape contrast dramatically, giving it a wild and natural beauty. No visitor would think it surprising that the island is a UNESCO World Heritage Site. Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in perfect harmony with their natural habitat for thousands of years.
ADD YOUR TITLE HERE
Macquarie Island(麦夸里岛) Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________
a _________ and ________ beauty
________ and _______ penguins, _________
and _________
Australia
Antarctica
Pacific Ocean
South-west
Australia
Antarctica
ADD YOUR TITLE HERE
Macquarie Island(麦夸里岛) Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________
a _________ and ________ beauty
________ and _______ penguins, _________
and _________
South-west
Australia
Antarctica
long
thin
strong
stormy seas
ADD YOUR TITLE HERE
Macquarie Island(麦夸里岛) Location
Shape
Landscape
Title
Inhabitants
in the ____________Pacific Ocean between ________
_______ and _______ shape caused by _______ wind and ___________
___________ and ________ contrast ___________
a _________ and ________ beauty
________ and _______ penguins, _________
and _________
South-west
Australia
Antarctica
long
thin
strong
stormy seas
green grass
bare rock
dramatically
UNESCO World Heritage Site
royal
king
elephant seals
ADD YOUR TITLE HERE______ on the island and __________ brought______________________develop an _______unknowinglyeatattackbroughtcontrolappetiteWhat were introduced then Read para 2 and complete the mindmap.A tragic storyarrivedintroduced rabits to the island as a source of ______.
__ plentiful food for the cats.
provided
food
________ the number of cats.
increased
_____
hunt
Parakeets
________
died out
Para 3: Read Para.3 quickly and finish the mind map .
was ________ to ________ the population of
provided ____food for the cats.
less
released
_____ their attention and their stomachs _____ to .
turned
Plan A
decrease
back
_____
killing
were used to ________
______
increase
catch
_____ a substantial number of
killed
Plan B
the numbers ________ once again.
exploded
Read paragraph 4~ 5 and draw a mindmap to show their connections.
rabbits
dogs & traps
birds
penguins
expert
cats
rats &mice
less food
kill
catch
While the cat’s away, the mice will play
immunity
/ mju n ti/
免疫力
kill
expert
rabbits
cats
dogs & traps
birds
rats &mice
virus
digging
the last cat was caught in 2000.
penguins
单击编辑标题
单击此处可编辑内容，根据您的需要自由拉伸文本框大小
单击编辑标题
单击此处可编辑内容，根据您的需要自由拉伸文本框大小
单击编辑标题
单击此处可编辑内容，根据您的需要自由拉伸文本框大小
Read Para. 6 and answer these questions.
What’s the writer’s mission(task) on the island
What did humans do on the island
单击编辑标题
单击编辑标题
单击编辑标题
It is _________ that have damaged the __________ of the Macquarie island and it is humans’ ___________________ to help it return to normal.
This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending.
humans
ecosystem
duty/responsibility
Postscript: In 2014, Macquarie Island was declared pest-free and the island’s ecology is finally on the road to recovery.
(　　)1.What does the author want to tell us in the first paragraph
A.Macquarie Island is beautiful.
B.Macquarie Island has a world-class name.
C.There are lots of penguins on Macquarie Island.
D.It is not easy for people to get to Macquarie Island.
√
Careful reading
(　　)2.The phrase “once and for all” in the fifth paragraph is most likely to mean “　　　”.
A.completely
B.easily
C.partially
D.skillfully
√
Careful reading
(　　)3.What does the author think of the former methods of controlling invading species
A.Useful.
B.Creative.
C.Successful.
D.Negative.
√
(　　)4.Why does the author come to the island this time
A.To do some voluntary work.
B.To train her dogs to catch rats.
C.To attend a meeting on the island.
D.To control the invading species.
√
While-reading
Careful reading
Read para2-6 and complete the flow chart.
Poison and dogs were used.
To remove all the remaining invading species.
This island was pest-free and its ecology is on the road to recovery.
they took over the island, eating the birds’ eggs and attacking baby birds
Cats were brought to the island.
The cats developed an appetite for the birds.
Rabbits were introduced.
To provide food for humans.
more cats hunting the birds. As a result, parakeets died out.
A virus was released onto the island.
To remove all the rabbits.
Substantial reduction of rabbit population led to cats killing more native birds.
Traps and dogs were used.
To catch the cats.
The departure of the cats resulted in an increasing population of rats and mice. And the rabbit population exploded once again.
Do the purposes and results match in every single action
Para 6:
...we humans owe it to the island to give it a happy ending.
(Whoever started the trouble should end it!)
解铃还须系铃人
Choose the author’s purpose in writing this passage and give your reasons.(p68 Activity 3)
A. To analyse how Macquarie Island was saved from destruction.
B. To inform readers of the chaos caused on Macquarie Island by humans.
C. To entertain reader with a funny story about what happened on Macquarie Island.
D. To suggest ways in which an ecosystem can be protected.
A
Post-reading
Think&Share:
1.Are the humans’ measures effective Why What’s the real problem
These measures fail to capture the essence of issue, only solving the current urgent problems.
The real problem is that the human activities caused the chaos.
Post-reading
Think&Share:
2. How could similar situations be avoided in the future
To avoid similar situations in the future, we should protect the natural ecosystem and be aware of the potential impact that human activities can have on ecosystems.
Post-reading
Think&Share:
3.What lessons can we learn from Macaurie Island’s story
1).awareness
2).action
...
Protect the natural ecosystem patiently and be careful of invading species.
Be aware of the potential impact that human activities can have on ecosystems.
Careful consideration should be given to issues of intervention to ecosystem.
Human
beauty
chaos
conservation
harmony
Humans broke the _______ of the ________
balance
ecosystem
Humans tried to ___________ the ____________.
conserve
ecosystem
Read for a summary(总结)
Small action, but big chaos!
Protect the nature, and keep ecological balance!
Clear waters and lush mountains are as valuable as gold and silver.
绿水青山就是金山银山。
Mother nature is good, also cold butcher. ---Hugo.
自然是善良的慈母，同时也是冷酷的屠夫。---雨果
Homework
Compulsory(必做)
Write a letter about the environment .
Optional (选做)
Please design a poster to call on the other students to protect our living conditions. In the poster you should list some practical dos and don'ts.
Homework
No Plastic Water Bottles
Dear fellow students,
Our school is launching an activity “No Plastic Water Bottles”. Plastic water bottles cause pollution as they’re made from non-renewable resources and take ages to decompose. In addition, they often end up in the ocean, posing a serious threat to marine life.
Here are some suggestions. Bring reusable bottles and refill them at school. At school events, use other containers for water. Also, spread the message about the harm of plastic bottles via posters and class discussions.
Let’s act now for a greener school!
The Students’ Union
Homework
Poster
Poster
Poster
Thank you

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