Unit 5 Into the wild Understanding ideas 课件（共23张，内嵌视频）-2022-2023学年高中英语外研版（2019）必修第一册 (1)
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| 名称 | Unit 5 Into the wild Understanding ideas 课件（共23张，内嵌视频）-2022-2023学年高中英语外研版（2019）必修第一册 (1) |  | |
| 格式 | pptx | ||
| 文件大小 | 25.3MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-05-03 11:54:42 | ||
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(共23张PPT)
Understanding ideas
新外研必修Book 1
Unit 5 Into the wild
Pre-reading
What does the video mainly talk about
It talks about monarch butterflies' amazing migration to Mexico.
Watch and think:
Background knowledge about monarch butterfly
The monarch butterfly, which lives in America, is probably one of the most well-known butterflies on earth. It has a famous name "Monarch Butterfly". It is widely said that the dazzling orange wings of this butterfly reminded European colonists who first arrived in North America of the Prince of Orange (later King William III of England), hence the name "Monarch Butterfly".
生活在美洲地区的黑脉金斑蝶大概是地球上最广为人知的蝴蝶之一，它有一个响当当的名字 “帝王蝶”（monarch butterfly）。一个流传甚广的说法是，这种蝴蝶耀眼的橘黄色翅膀令初到北美大陆的欧洲殖民者想到了建立丰功伟业的奥兰治王子（Prince of Orange，也即后来的英格兰国王威廉三世），“帝王蝶” 因此得名。
Do you know the names of these animals
monarch butterfly
Siberian crane
red panda
Atlantic salmon
killer whale
African lion
Look and choose the animals that migrate.
monarch butterfly
Siberian crane
red panda
Atlantic salmon
killer whale
African lion
√
√
√
√
Background knowledge about animal migration
Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, amphibians, insects, and crustaceans. The trigger for the migration may be local climate, local availability of food, the season of the year or for mating reasons. To be counted as a true migration, and not just a local dispersal or irruption, the movement of the animals should be an annual or seasonal occurrence, such as birds migrating south for the winter; wildebeest migrating annually for seasonal grazing;
动物迁徙是个体动物相对长距离的移动，通常是季节性的。这是生态学中最常见的迁移形式。它存在于所有主要的动物类群中，包括鸟类、哺乳动物、鱼类、爬行动物、两栖动物、昆虫和甲壳动物。引发迁徙的原因可能是当地的气候、当地的食物供应、一年中的季节或交配的原因。怎样才算作一次真正的迁徙，而不仅仅是局部的扩散或入侵？动物的迁徙应该是一年一度或季节性的，比如鸟类迁徙到南方过冬；为季节性食草每年迁徙的角马等；
While-reading
What is the main idea of the passage
A. The monarch’s migration.
B. The reasons for monarch’s
migration.
C. Mexico’s monarch.
The main idea of a passage can be found from its title, the topic sentence, or even the pictures.
Read the passage and find out what mystery the scientists have solved.
The scientists have solved the mystery of how monarch butterflies manage to travel a long distance and find their way to their destination.
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.
What ’s the writing style of the passage
A. Narration（记叙文）
B. Argumentation（议论文）
C. Exposition（说明文）
D. Practical writing （应用文）
Read for the writing style
Illustrations Sentences in the text
Cause-effect (因果) …
This annual movement is called migration.
One of the most wonderful migration is that of the North American monarch butterfly.
…travel around 4,000 kilometers…
…has crashed by as much as 90 per cent…
…insects with fine black and orange wings…
People are destroying the natural environment.
People have been working together to…
Definition (下定义)
Example (举例子)
Appearance(摹状貌)
Figure(列数据)
Comparison(作比较)
destroying
working together
Para. 1
Paras. 2-3
Para. 4
Para. 5
A. Measures to protect monarch butterfly
B. Monarch butterfly's
trouble &causes
C. Information about migration
D. Monarch butterfly's migration
Match the main ideas.
Careful reading
To find food
To seek a partner
In search of warmer weather
Definition
（定义）
Para. 1 Information about migration
Why
Move from one place to another
At certain time of each year
Find the way to California or Mexico
When
Para. 2 Monarch butterfly's migration
Where
&How far
Every autumn
Travel around 4,000 km south
Tell the time of day
Measure the position of the sun
Para. 3 Monarch butterfly's migration
determine the way & reach the places
How do they make it
direction
d
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
the way to go
the position of
the places where
a
day
the sun
it will spend the winter
c
b
Para.3Complete the sentences with expressions from the passage. Then use the sentences to complete the "cause-effect" flow charts.
Use chemicals
Its population has crashed by 90%.
Para. 4 Monarch butterfly’s
trouble & causes
Trouble
Causes
Human activities
Cut down trees
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 cent)
h
e
g
f
Para. 4
...
Record its migration.
Para. 5 Measures to protect
monarch butterfly
Measures
Ensure enough food
Post-reading
Think and share:
What impresses you most about the monarch butterfly
It said, “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.
What can people do to help protect the monarch butterfly
Plant native milkweed species to feed on
Do not use chemicals that kill the plants as much as possible
Protect the natural environment
Read and complete
Of all mass migrations, that of the North American monarch butterfly is one of the most __________ (wonder). Every autumn ________(million) of these beautiful insects manage __________(travel) 4, 000 kilometres south and find ways to places ________ they will spend winter. A team of scientists ___(lead) by the university of Washington _____________(discover) that the monarch is able to tell the time of day _______ uses eyes to measure the position of _____ sun. The information _______(allow) the butterfly to determine the way ______(go).
wonderful
millions
to travel
where
led
has discovered
and
the
allows
to go
Understanding ideas
新外研必修Book 1
Unit 5 Into the wild
Pre-reading
What does the video mainly talk about
It talks about monarch butterflies' amazing migration to Mexico.
Watch and think:
Background knowledge about monarch butterfly
The monarch butterfly, which lives in America, is probably one of the most well-known butterflies on earth. It has a famous name "Monarch Butterfly". It is widely said that the dazzling orange wings of this butterfly reminded European colonists who first arrived in North America of the Prince of Orange (later King William III of England), hence the name "Monarch Butterfly".
生活在美洲地区的黑脉金斑蝶大概是地球上最广为人知的蝴蝶之一，它有一个响当当的名字 “帝王蝶”（monarch butterfly）。一个流传甚广的说法是，这种蝴蝶耀眼的橘黄色翅膀令初到北美大陆的欧洲殖民者想到了建立丰功伟业的奥兰治王子（Prince of Orange，也即后来的英格兰国王威廉三世），“帝王蝶” 因此得名。
Do you know the names of these animals
monarch butterfly
Siberian crane
red panda
Atlantic salmon
killer whale
African lion
Look and choose the animals that migrate.
monarch butterfly
Siberian crane
red panda
Atlantic salmon
killer whale
African lion
√
√
√
√
Background knowledge about animal migration
Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, amphibians, insects, and crustaceans. The trigger for the migration may be local climate, local availability of food, the season of the year or for mating reasons. To be counted as a true migration, and not just a local dispersal or irruption, the movement of the animals should be an annual or seasonal occurrence, such as birds migrating south for the winter; wildebeest migrating annually for seasonal grazing;
动物迁徙是个体动物相对长距离的移动，通常是季节性的。这是生态学中最常见的迁移形式。它存在于所有主要的动物类群中，包括鸟类、哺乳动物、鱼类、爬行动物、两栖动物、昆虫和甲壳动物。引发迁徙的原因可能是当地的气候、当地的食物供应、一年中的季节或交配的原因。怎样才算作一次真正的迁徙，而不仅仅是局部的扩散或入侵？动物的迁徙应该是一年一度或季节性的，比如鸟类迁徙到南方过冬；为季节性食草每年迁徙的角马等；
While-reading
What is the main idea of the passage
A. The monarch’s migration.
B. The reasons for monarch’s
migration.
C. Mexico’s monarch.
The main idea of a passage can be found from its title, the topic sentence, or even the pictures.
Read the passage and find out what mystery the scientists have solved.
The scientists have solved the mystery of how monarch butterflies manage to travel a long distance and find their way to their destination.
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.
What ’s the writing style of the passage
A. Narration（记叙文）
B. Argumentation（议论文）
C. Exposition（说明文）
D. Practical writing （应用文）
Read for the writing style
Illustrations Sentences in the text
Cause-effect (因果) …
This annual movement is called migration.
One of the most wonderful migration is that of the North American monarch butterfly.
…travel around 4,000 kilometers…
…has crashed by as much as 90 per cent…
…insects with fine black and orange wings…
People are destroying the natural environment.
People have been working together to…
Definition (下定义)
Example (举例子)
Appearance(摹状貌)
Figure(列数据)
Comparison(作比较)
destroying
working together
Para. 1
Paras. 2-3
Para. 4
Para. 5
A. Measures to protect monarch butterfly
B. Monarch butterfly's
trouble &causes
C. Information about migration
D. Monarch butterfly's migration
Match the main ideas.
Careful reading
To find food
To seek a partner
In search of warmer weather
Definition
（定义）
Para. 1 Information about migration
Why
Move from one place to another
At certain time of each year
Find the way to California or Mexico
When
Para. 2 Monarch butterfly's migration
Where
&How far
Every autumn
Travel around 4,000 km south
Tell the time of day
Measure the position of the sun
Para. 3 Monarch butterfly's migration
determine the way & reach the places
How do they make it
direction
d
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
the way to go
the position of
the places where
a
day
the sun
it will spend the winter
c
b
Para.3Complete the sentences with expressions from the passage. Then use the sentences to complete the "cause-effect" flow charts.
Use chemicals
Its population has crashed by 90%.
Para. 4 Monarch butterfly’s
trouble & causes
Trouble
Causes
Human activities
Cut down trees
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 cent)
h
e
g
f
Para. 4
...
Record its migration.
Para. 5 Measures to protect
monarch butterfly
Measures
Ensure enough food
Post-reading
Think and share:
What impresses you most about the monarch butterfly
It said, “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.
What can people do to help protect the monarch butterfly
Plant native milkweed species to feed on
Do not use chemicals that kill the plants as much as possible
Protect the natural environment
Read and complete
Of all mass migrations, that of the North American monarch butterfly is one of the most __________ (wonder). Every autumn ________(million) of these beautiful insects manage __________(travel) 4, 000 kilometres south and find ways to places ________ they will spend winter. A team of scientists ___(lead) by the university of Washington _____________(discover) that the monarch is able to tell the time of day _______ uses eyes to measure the position of _____ sun. The information _______(allow) the butterfly to determine the way ______(go).
wonderful
millions
to travel
where
led
has discovered
and
the
allows
to go