外研版（2019）必修第一册Unit 5 Into the Wild Understanding ideas Reading课件（共29张PPT）

(共29张PPT)
Unit 5 Into the Wild
Understanding Ideas
The monarch's journey
Learning objectives
By the end of the class, you will be able to
◆ get the main idea of the passage;
◆ get the specific information of the monarch’s migration and analyze how the monarch migrates;
◆ draw a cause-effect flow chart to show how the monarch migrates and why the number of them decreased rapidly;
◆ share your ideas about what people can do to help protect the monarch butterfly
Warming-up
What were they doing
They were migrating.
Are they the animals that migrate
a
b
c
monarch butterfly
/ m n k/
Siberian crane
/sai'bi ri n/
Atlantic salmon
/ t l nt k/
Are they the animals that migrate
red panda
killer whale
African lion
d
e
f
Think and answer.
Animal migration refers to the movement of a species from one habitat to another in response to seasonal changes to the environment. Often covering great distances and involving huge numbers of animals, it can be fascinating to observe. Migration happens in all parts of the animal kingdom, from fish and insects to birds, reptiles and mammals.
What do you know about animal migration
Lead-in
Watch the video :
Monarch Butterfly -Amazing Animals
Let’s start our journey to explore monarch butterflies together!
a
monarch butterfly (黑脉金斑蝶)
The monarch butterfly is a kind of beautiful insect with fine black and orange wings.
The monarch usually has a lifespan of 6 weeks, and its
hometown is mainly in America.
The monarch butterflies’ migration.
1. What does this passage
talk about
Pre-reading
Prediction
2. What is the genre of the passage
Expository writing
Think about where you are most likely to find the passage.
In a scientific research paper about the monarch
butterfly’s migration.
B. In a popular nature magazine introducing the
monarch butterfly.
In a travel leaflet encouraging people to visit
North America.
Paragraph ___-___
Paragraph ___-___
The migration of monarch butterflies.
The influences of human’s activities on monarchs.
While-reading
Skimming
Match the paragraphs with the main ideas.
1 3
4 5
Part 1：
Part 2：
What
is the migration
Who
is one of the most wonderful examples about migration
Why
do they migrate
Reading for information
Para.1
What
is the migration
Who
is one of the most wonderful examples about migration
Why
do they migrate
Many animals move from one place to another at certain times of the years. This annual movement is called migration.
They migrate to find food, seek a partner, or in search of warmer weather.
The North American monarch butterfly

Reading for information
Para.1
Why do we call it “one of the most wonderful migrations”
Millions of monarchs with wings
Long and difficult journey
California
Mexico
Small wings, big power.
Scanning
Reading for information
Para.2
However, until recently no one knew how they did this.
not... until
Scanning
But we didn’t know how these butterflies traveled 4,000 kilometers south until recently.
monarch butterflies
traveled around 4,000 kilometers south
How
Reading for information
Para.2
d
p.69 (Activity 4)
a. The monarch butterfly is able to tell ___________________.
b. Using these two pieces of information, the monarch butterfly
determines ________________.
c. The monarch butterfly measures ____________________________ with its eyes.
d. The monarch butterfly reaches _____________________________________________.
the time of day
the way to go
the position of the sun
the places where it will spend the winter
a
c
b
Cause:
Effect:
Reading for information
Para.3
The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble.

Reading for information
Para.4
h
e. Humans _________________ trees.
f. The _________________________________________ where monarchs can be found is destroyed.
g. Humans use chemicals that ___________________ that monarch caterpillars eat.
h. The monarch butterfly’s population ________________________________________ ______ in the last few years.
cut down
natural environment of many places
kill the plants
has crashed (by as much as 90 per
e
g
f
p.69 (Activity 4)
Cause:
Effect:
cent)
Reading for information
Para.4
Other factors that destroy the monarchs’ habitat.
factors
deforestation
high quantity of exhaust gases
urbanization
forest fire
overpopulation
food shortage
The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble.
Natural environment has been destroyed.
What have people been doing after a greater awareness of
this lovely creature
People have been working together to record its migration and make sure that there are enough plants for it to feed on
Reading for information
Para.5
migration
monarch's
migrations
definition :(1)______________________________
purpose : (2)①________②___________③________
a long and
difficult
(3)______
travel (4)________________
find(5)________________
what Professor Eli Shlizerman has found
The monarch is able to tell (6)_______
It uses its eyes to measure(7)_______
the fall of the number of monarch butterflies
human activity
(8)____________
(9)____________
the research on the monarch's behaviour
led to (10)___________of this creature .
The Monarch's
Journey
migration
monarch's
migrations
definition :(1)______________________________________
purpose : (2)①________②___________③________
a long and
difficult
(3)______
travel (4)________________
find(5)________________
what Professor Eli Shlizerman has found
The monarch is able to tell (6)_______
It uses its eyes to measure(7)_______
the fall of the number of monarch butterflies
human activity
(8)____________
(9)____________
the research on the monarch's behaviour
led to (10)___________of this creature .
The Monarch's
Journey
movement from one place to another at certain times of the year
find food
seek a partner
in search of warmer
weather
4,000 kilometers south
their way to California or Mexico
the time of day
the position of the sun
cut down trees
use chemicals
a greater awareness
journey
1. What impresses you most about the monarch butterfly
2. What is the author’s purpose in writing the passage
3. What can people do to help protect the monarch butterfly
Reading for opinions
(Group work)
1.What impresses you most about the monarch butterfly
“Its population has crashed by as much as 90 per cent in the last few years” in the text.
This gave me a huge shock. It' s high time that we should think over about the cause and take measures to protect them as well as their natural habitat..
To call on/appeal to people to protect natural environment so as to protect animals
2.What is the author’s purpose in writing the passage
3. What can people do to help to protect animals
First, ______. If we ..., ...will ...
Then, _______. It is ... for ... to do ...
Finally, ______. The 比较级..., the 比较级...
First, plant more trees. If we plant more trees, the environment will become better and better.
advice
reasons
Answers for reference
Plant native milkweed species to feed on
Do not use chemicals that kill the plants as much as possible
Protect the natural environment
Critical Thinking
Why does the author use “journey” instead of “migration”in the title
The Monarch’s journey to the destination
Scientists’ journey to discovering the mystery
Human’s journey to protecting the monarch
Long and tough process in need of joint effort
With joint effort, we can make a difference to our journey to protecting the eco-system
“All beings flourish when they live in harmony and receive nourishment from Nature.”
Conclusion
“If we humanity do not fail Nature, Nature will not fail us.”
Xi’s Words
Summary
Summarize the main idea of the text.
2. Tell the genre and where the passage comes from.
3. Tell specific information about the way of the monarch's migration and the impact people have on the monarch.
4. Introduce the monarch to the classmates.
Homework:
1、Think of a slogan to call on people to protect the monarch butterfly
2. Design a poster about an endangered animal in groups