(共24张PPT)
Unit 5 Into the wild
The Monarch’s
Journey
Watch the video and answer the questions.
1 What are the most popular pets in the UK
2 What is the most important animal charity in the UK
Look at the pictures and answer the questions.
1 What are the relationships between the people and the animals
2 What animals do you often interact with What is your relationship with them
Look at the pictures and choose the animals that migrate.
Now talk about what you know about animal migration.
Read the passage and find out what mystery the scientists have solved.
Choose where you are most likely to find the passage.
1 In a scientific research paper about the monarch butterfly’s migration.
2 In a popular nature magazine introducing the monarch butterfly.
3 In a travel leaflet encouraging people to visit North America.
Fast reading
Match the main idea with each paragragh
Fast reading
Para. 2
Para. 3
Para. 4
Para. 5
Para. 1
Para. 2
Para. 3
Para. 4
Para. 5
Which of the following is not a purpose of a migration
A. To search for food.
B. To look for a partner.
C. To breed young babies.
D. To stay away from cold whether.
Careful reading
Which of the following is not a purpose of a migration
Many animals move from one place to another at certain times of the year. This annual movement is called migration. They migrate to find food, seek a partner, or in search of warmer weather.
One of the most wonderful migrations in nature is that of the North American monarch butterfly.
Why does the author write this passage
Which of the following is not a purpose of a migration
Many animals move from one place to another at certain times of the year. This annual movement is called migration. They migrate to find food, seek a partner, or in search of warmer weather.
One of the most wonderful migrations in nature is that of the North American monarch butterfly.
Why does the author write this passage
Amazing monarch butterfly
Every autumn, millions of these beautiful insects with fine black and orange wings begin a long and difficult journey. Somehow they manage to travel around 4,000 kilometers south and find their way to California or Mexico.
How monarch butterfly did this?
A team of scientists led by Professor Eli Shlizerman at the University of Washington has now found the answer.
Complete the sentences with expressions from the passage. Then use the sentences to complete the “cause-effect” flow charts.
a The monarch butterfly is able to tell 1___________________
b Using these two pieces of information, the monarch butterfly determines 2________________
c The monarch butterfly measures 3______________________ with its eyes.
d The monarch butterfly reaches 4_________________.
the time of day
the way to go
the position of the sun
the places where it will
spend the winter
a
c
b
Monarch butterflies were in trouble
The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble. Its population has crashed by as much as 90 per cent in the last few years.
Why are butterflies in trouble?
human activity is the main reason why the number of monarch butterflies is falling. In many of the places where the butterfly can be found, people are destroying the natural environment. They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.
Why are butterflies in trouble?
Human activity
People are destroying the natural environment.
They cut down trees.
People use chemicals that kill the plants that monarch caterpillars eat.
2. What does the word “crash” in Para.4 mean
A. Succeed B. Fail C. Increase D. Drop
3. The author develop the paragraph 3 and 4 mainly_______.
A. by time order B. by space order
C. by examples D. by cause and effect
To love animals is love ourselves.
How did people do to protect monarch butterfly
People have been working together to record its migration and make sure that there are enough plants for it to feed on.
So that
If this works, there may come a time when the number of monarch butterflies increases once again.
The future of butterfly:
The more we know about this lovely creature, the greater the chance it will survive and keep its place in the natural world for a long time to come.
4. Where are you most likely to find the passage
A. In a scientific research paper.
B. In a popular nature magazine.
C. In a travel leaflet.
D. In a science fiction
5. What is the writer’s purpose in writing the passage
A. To promote the awareness of protecting the wildlife.
B. To introduce the journey of the monarch.
C. To analyze a research on a kind of butterfly.
D. To find the cause of the decline of monarch.
Complete the sentences with expressions from the passage. Then use the sentences to complete the “cause-effect” flow charts.
e Humans 5__________ trees.
f The 6__________________________________ where monarchs can be found is destroyed.
g Humans use chemicals that 7________________ that monarch caterpillrs eat.
h The monarch butterfly population 8_________________ in the past few years.
e
cut down
natural environment of many places
kill the plants
has crashed
g
f
Think & Share
What impresses you most about the monarch butterfly
What can people do to help protect the monarch butterfly