Unit 5 Into the wild Understanding ideas 课件(共21张PPT,内镶嵌视频)-外研版(2019)必修第一册

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Unit 5 Into the wild Understanding ideas 课件(共21张PPT,内镶嵌视频)-外研版(2019)必修第一册

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Unit 5
Into the wild Unit 5
Into the wild
Unit 5 Into the wild
Understanding ideas
Look at the pictures and choose the animals that migrate.
d
e
f
a
monarch butterfly
b
Siberian crane
c
Atlantic salmon
red panda
Killer whale
African lion

P66



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1.One of the most important butterflies in the America.
2.Big size and colorful wings with white dots and black strips.
3. Be good at disguising to avoid capture.
4.It usually has a short life of 6 weeks. And it is the only butterfly that can migrate .
Introduction: Monarch butterfly
Q: What does 'Journey' in the title refer to
A. trip B. visit C. migration D. flight
The Monarch’s Journey
Watch the video
Skim for genre
1.Title
2.Pictures,chart and tables
3.First and last sentence of each para.
A. Narration(叙述文)
B. Expository writing(说明文)
C. Argumentation(议论文)
1.What’s the type of this passage
(1mins)
Eventually, it manages to reach the places where it will spend the winter
The more we know about this lovely creature, , the greater the chance it will survive
Para.3—4
Para.5
Measures to protect monarch butterfly
Monarch butterfly’s troubles & causes
Para.1
The definition of migration
Para.2
The introduction of monarch butterfly’s migration
Skim for main idea(2mins)
Match the main idea of each para.
B. In a popular nature magazine introducing the monarch butterfly.
Skim for source
2.Where are you most likely to find this passage
C. In a travel leaflet encouraging people to visit North America.
A. In a scientific research paper about the monarch butterfly’s migration.
科学研究报纸
旅游手册
To find food
To seek a partner
In search of warmer weather
North American monarch butterfly
Definition
Para. 1 Information about migration
Reasons
Careful reading
Travel around 4,000 km south
Find the way to California or Mexico
Time
Para. 2 Monarch butterfly's migration
Journey
Every autumn
long
difficult
How do they make it
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 __________________________________.
d
the time of day
the way to go
the position of the sun
the places where it will spend the winter
a
c
b
3 How do monarch butterflies find the way to go
Para. 3 Monarch butterfly's migration
U.S.A
Mexico
Northbound
Southbound
1st generation
2nd generation
3rd generation
4th generation
4th generation
continued
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.
h
cut down
natural environment of many places
kill the plants
has crashed (by as much as 90 per cent)
e
g
f
Para. 4 Monarch butterfly’s trouble & causes
Use chemicals
Its population has crashed by 90%.
Para. 4 Monarch butterfly’s trouble & causes
Trouble
Causes
Human activities
Destroy the natural environment
Cut down trees
1. What measures are taken to protect monarch butterfly
Read for the solutionpara.5
make the record
make sure enough food for it to feed on
the number of butterfly increases
What measure
What effect
The
Monarch’s Journey
Where
Time
How
Every_________
Travel around 4000 km south
to __________or _________
Use _____ to measure_______ ______________and is able to_____________________
Main causes: ____________
such as _______________
and _____________
cutting down trees
using chemicals
Solution:
Make sure that there are _____________for it to feed on
enough plants
autumn
California
Mexico
position of the sun
eyes
tell the time of the day
human activity
Trouble:____________
___________________________________
its population
has crashed by as much as 90%
the
Post— reading
discussion
What can people do to help protect the monarch butterfly and other animals in danger
Discussion
Plant enough plants for it to feed on
Do not use chemicals that kill the plants as much as possible
Protect the natural environment
There may come a time when the number of monarch butterflies increases once again
Measures
Record its migration
Ensure enough food
Secure the natural environment
Plant native trees to feed on them
Teach the farmer to use chemicals correctly
Create suitable habitats(栖息地)
Engage more researches
respect
Post reading
reflection
1.Animals are close friends of human beings.
2.Protecting animals is also protecting the Earth.
3.Love life,stop killing,we have a common earth.

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