外研版（2019）必修第一册 Unit5 Into the wild Starting out and Understanding ideas 名师课件(25张ppt)

(共25张PPT)
Unit 5 Starting out and Understanding ideas
课时目标：
引导学生基于自身经历，简单描述、谈论、评价人与动物之间的关系；
带领学生通过略读锁定关键词，获取课文大意，根据课文内容准确判断文章出处；
带领学生通过精读，迅速找出主要细节在文中的位置，理清文中的因果逻辑关系；
引导学生了解黑脉金斑蝶迁徙的背景、目的和方式，了解人类行为对其生活的影响，加深对课文和单元主题的认知；
目 录
Starting out
Understanding ideas
Welcome
Homework
Starting out
Task one
Task two
Task1:
1.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
Starting out
Suggested answers:
The most popular pets in the UK are cats and dogs.
The most important animal charity is the RSPCA (the Royal Society for the Prevention of Cruelty to Animals).
Task2:
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
Starting out
Pre-reading
Task one
Task two
Task1. Look at the pictures and choose the animals that migrate.
monarch butterfly
Siberian crane
Atlantic salmon
red panda
killer whale
African lion
Task2. Enjoy the video and observe the
butterflies carefully.
Task2:
1. What can you see from the video
2. Why does these butterflies back to north
American
3. What is the “mystery” refer to at the end of the video
Task one
Task two
(5 minutes)
Fast reading
Task1.What’s the main idea of the text
A．How to protect monarchs by knowing about their migration.
B．How to understand monarchs' migration.
C．How the scientists do the research about monarchs.
D．How the monarchs migrate every autumn.
Task2. Match the main idea with the proper paragraph.
A. Every autumn monarchs begin to migrate.
B. Every year many animals migrate.
C. How to protect the monarchs.
D. Why the number of the monarchs reduces.
E. How the monarchs migrate.
para1
para2
para3
para4
para5
Careful reading
Task one
Task two
Task three
(10minutes)
1. What does the word “that” refer to in the last sentence of paragraph 1
A. Migration B. Butterfly C. Partner D. Weather
2. What’s the factor driving scientists to find the solutionto the mystery of the monarch
A. The monarch is able to tell the time of day.
B. The monarch is in serious danger.
C. The monarch can use its eyes to measure the position of the sun.
D. The monarch manages to reach the places where it will spend the winter.
Task1. Choose the best choice.
3. What’s the writer’s attitude to people’s efforts
A. Negative B. Neutral
C. Indifferent（漠不关心的） D. Positive
4. What does the last paragraph want to tell us
A. Kill two birds with one stone.
B. When the cat’s away , the mice will play.（山中无老虎,猴子称大王）
C. The more, the better.
D. Let sleeping dogs lie.（别惊动睡着的狗；别惹麻烦）
1.Every summer the monarchs begin to migrate.( )
2.The monarchs travel around 4,000 kilometres north.( )
3.The monarchs have delicate black and orange wings.( )
4.The number of monarchs is reducing.( )
5.The food sources of the monarchs are increasing.( )
Task2. True or false.
autumn
south
decreasing
The Monarch's Journey The purpose of animal migration They 1._______ to find food, a partner or search of warmer weather.
Monarchs' hard migration Every autumn, they begin a long and difficult journey, and manage to travel around 4,000 kilometres 2._____ to find their way to places 3.______ they will spend the winter.
The way of monarchs' migration The monarch is able to tell the time of day, and use its eyes 4.__________ the position of the sun. So, it can 5._________ which way it needs to go and change its 6.________ when necessary.
migrate
south
where
to measure
determine
direction
Task3.Fill in the blanks.
The reason why the monarch numbers are falling People are destroying the natural environment by 7.____________ trees and using 8._________ that kill the plants that monarch caterpillars eat.
How to protect the monarchs ·Volunteers have been working together to record their migration and make sure that there are enough plants for them to 9.______.
·The more we know about these delicate creatures, 10.__________ the chance they will survive.
cutting down
chemicals
feed on
the greater
Post reading
Task one
Task two
Task1. Rational cloze.
Many animals migrate at certain times of the year. Of all the mass 1._________(migrate), that of the North American monarch butterflies is one of the most wonderful. Every autumn, they begin 2.__ long and difficult journey. Somehow they manage to travel around 4,000 kilometers south and find their way 3.___ California or Mexico. They are able to tell the time of the day and use their eyes 4._________ (measure) the position of the sun. 5.________ (eventual), they manage to reach California or Mexico.
migrations
a
to measure
to
Eventually
Now the monarch is in serious trouble, and its population 6.__________ (crash) by as much as ninety per cent in the last few years. Human activity is the main reason. In many of the places where monarchs can 7._________ (find), people are destroying the natural environment by 8.______ (cut) down trees and using chemicals that kill the plants that monarch caterpillars eat. Fortunately, people are aware of the problem and begin to take action. People have been working together 9.________ (protect) monarchs. The more we know about the monarchs, 10._________ (great) the chance they will survive.
has crashed
be found
cutting
to protect
the greater
Task2.Think & Share
1.What impress you most about the monarch
butterfly
2.What can people do to help protect the monarch butterfly
Summary
In this period, we have
1. read a passage about An Encounter with Nature.
2. got information about main idea and some details.
3. formed a right attitude to the nature.
Homework
1. Read the passage again and try to
summarize the important words and
sentences in the text.
2. Finish the exercises on the Exercise book.