1. Unit 11 Planting trees
Unit 11 Planting trees
Lesson 41
Lesson 41

2. air
water
environment
animals
plants
man
earth

3. The functions（作用） of trees
1. Clean air .
2. Give us wood .
3. Produce oxygen ( 氧气).
4. Keep us cool in summer.
5. Hold soil and water
6. Stop lands from becoming
deserts
7.Offer birds and some animals
homes .
8. Make our world more beautiful.

4. How To Plant A Tree
How To Plant A Tree

5. Complete the dialogue
A : Hi , Jack .Why are you ____ old clothes ?
B : Today is Tree ______ Day .I’m going to plant some trees
near the river . Would you like to help me ?
A : _____ . What shall we do first ?
B : _____ holes which are large and deep _____ for the trees .
(After a while )
A : Now I have ____ a hole . Do you think it is OK?
B : You have done very well . I think it is just ____ .
A : What shall we do ____ ?
B : _____ a stick into the earth . _____ _____ it is straight .
A : And then ?
B : Put a tree in and the earth back in the hole . Tie the tree to the
stick ____ ____ the tree can be straight .
A : Is it OK ?
B : At last the tree should be ______ well . . in
Planting
Sure
Dig
enough
dug
right
next
Knock
Make sure
So that
watered

7. A short speech about trees
Suppose the theme（主题） of the World
Environment Day is trees .
The importance of the trees:
a. The functions (作用)of the trees
b. What will happen without trees?
2. Call on (号召)people what to do.

9. Homework
Write a diary . Suppose you have just come back from planting trees on March 12th. 1. Why did you plant trees ?
2 . How did you plant trees ?
3 . What did you feel?