Module 2 Unit 4 Save the trees Trees in our daily lives 课件（七下）(共20张PPT)

(共20张PPT)
What did we do last Thursday
Save the trees
Trees in our
daily lives
Unit 4
Different parts of a tree and their functions(功能)
a. _________
fruit
b. _________
branch
c. _________
leaf
d. _________
root
根部 n.
trunk
树干 n.
树枝 n.
f. _________
Different parts of a tree and their functions(功能). Please match on your own screen.
A. fruit
B. branches
C.leaves
D. roots
4. It provides us with nutrition(营养）
E.trunks
3. They stop soil (土壤) from being washed away
1. They are home to birds and animals
5. They fight against air pollution.
2. They provide us with wood
1. What is the text type (体裁) of the article
a. A story.
b. An interview.
c. A news report.
d. A poster.
Speakers
Conversations
Pre-reading
Look at the title, the introduction, and the layout (布局) of the article on page 45.
While-reading
Read the conversations, think of the three questions and complete the mindmap on your handout.
How do trees fight against air pollution
How do trees make our lives more convenient
What are the problems and advice according to Dr. Jones
While-reading
1. _____________
2. _____
3.__________
4.____________
produce
harmful gases from the air
oxygen for us to breathe
Trees can _____ and_______ the air .
photosynthesis
光合作用
How do trees fight against air pollution
take in
cool
clean
v.
v.
Read Carefully
1. Many of the things come from trees, for example, paper and pencils.
2. We get fruit, oil and tea from trees.
3. A lot of furniture is made of wood.
oil
we can use it to cook food
How do trees make our lives more convenient
2. What things can you find that are made of trees in our daily lives
For using:
For eating:
For drinking:
For wearing:
3. What do you think of trees in our daily lives
While-reading
Discuss the following question in your group.
Important&helpful
chopsticks(筷子), desks, chairs...
nuts, apples, mangoes...
coffee, coconut, tea...
slippers(rubber)
rubber
fruit
branch
leaf
root
trunk
slippers
While-reading
We humans cut down over 15 billion (十亿) trees every year.
What are the problem and advice according to Dr. Jones
While-reading
Imagine: What will happen if there are no trees on Earth
While-reading
According to Rebecca, what can we do to stop these things
Stop cutting
down trees
What else ...
What else can we do to protect the trees in our daily lives
Brainstorm:
plant more trees
write on two sides of paper
use fewer pencils
use fewer throwaway chopsticks
take good care of our desks and chairs
These sentence patterns you can use:
1. We should...
2. We are responsible to ...
3. Why not do...
4. We’d better do...
5. It’s helpful to...
6. It is important to...
7. It’s our duty(责任) to ...
...
......
Summary
Trees in our
daily lives
Trees help us in many ways
Problems and advice
Trees are major fighters against air pollution
Trees make our lives more convenient
We cut down millions of trees
1. We should stop cutting down trees
2. It’s important to plant more trees
...
paper, pencils, fruit, furniture...
take in; produce...
deserts,
extreme weather
Post Reading
Task 1: Complete a speech in your group to call for more students to protect trees.(2mins)
Dear students:
S1: Trees are important to human beings. As we all know, they __________________. They _____________________.
They are ____________. (How do they fight against air pollution )
S2: They _______________________. (How do they make our lives convenient )
S3: However, people _____________________________. Without trees, there will be ______________________.
S4: From now on, we should do sth. to stop these problems.
First of all, We should_______________________. (1-2 suggestions)
S5: What’s more, we are responsible to _______________. (1-2 suggestions)
S6: At last, ________________________. (1-2 suggestions)
All students: Dear friends, come and join us to help protect trees.
1. rich sentence patterns
(句型丰富）
2. use more linking words (多用连接词）
Evaluation
Do they tell what trees can do for us
Do they list problems and give suggestions
Do they use rich sentence patterns
Do they use linking words(e.g. first, second...)
Do they have a loud voice
Lucid water and lush mountains are invaluable assets
Homework
(You can choose one between the second and third)
1. Please protect the trees starting with little things around us. You can plant a tree at this weekend.
2. Please design(设计) a poster to call on more people to protect trees. (It should include pictures, the importance of trees and what we do to protect them.)
3. Please write down your own speech on paper by yourself.
Thanks!