仁爱科普版九上Unit 2 Topic 3What can we do at home to protect the environment？ SectionD 课件(共27张PPT)

(共27张PPT)
Unit 2 Saving the Earth
Topic 3 What can we do at home to protect the environment
Section D Reading and writing
Why do they plant trees
What are they doing
How important is the forest
Forests are the lungs of the earth.
Remove carbon dioxide from the air
Make oxygen
v,去除，使消失，移开
Do you think it is easy for them to be a tree planter
Are you afraid of these insects
Will they bite planters
Will you be a tree planter like them
Writing:如果你是视频中的植树人，写篇作文谈谈为什么要做植树人？
Would you like to be a volunteer tree planter
1，众所周知，植树造林很重要，但是现在很多森林被毁掉!
2，但有人认为，说来容易做来难，植树造林面临很多困难，自己拟定2-3个方面。
3，最后请陈述你的观点！
Read and get the main idea
importance
difficulties
opinion
Para3
Para 1
Para2
_
___
____
1.Read para 1 and fill in the blank.
importance
Present situation
vonlunteer activities
The lungs of the earth.
Trees are cut down to build houses
Volunteers are working to plant new trees to replace them
Thinking
Why do people cut down trees
Let’s write para1
1，有人认为植树造林很重要，因为森林是地球之肺，它可以去除CO2(carbon dioxide)同时生成O2(make oxygon)，但是现在很多森林被毁掉了!（lung ,breathe,remove, cut down)
Would you like to be a volunteer tree planter
2.Read para 2 and find out what difficulties they will face
the weather
insects
working
hot,dry,cold,wet
bite
dangerous
Find some verbs(动词）or adjectives(形容词)
what
adj.干燥的，雨少的，干性的v. 使……干，弄干，擦干
(1)The weather may be very hot and dry or it may be very cold and wet.
(2) Many insects bite these planters while they work.
(3)Working in the mountains can be dangerous.
(4)We must plant different trees to make birds and animals live in the forests
(5)some natural disaster like flood or earthquake will destroy the forests.
(6)Forests are easy to become ill.
……
Thinking
When you decide to be a tree planter ,what do you have to think of Can you give some examples
When we face so many difficulties,what should we do
Let’s write para2
However ,it's easier said than done, face some difficulties.first---,second, At last,---
1，众所周知植树造林很重要，但是现在很多森林被毁掉，你会去做植树志愿者(a volunteer planter)吗？
2，但有人认为，说来容易做来难，植树造林面临很多困难，自己拟定2-3个方面。
What do tree planters think of trees
They are changing the world .
Even though tree planting is very difficult,they love the work.
They believe that in 50 years their little trees will become beautiful forests!
Some sentence patterns(句型) in para3 and learn to write.
1. Even though tree planting is very difficult,they love the work.
2. They believe that in 50 years their little trees will become beautiful forests!
Even though……
I believe that……
I am sure that…
I hope that…
I wish that…
Let’s write para3
Would you like to be a volunteer tree planter
1，众所周知，植树造林很重要，但是现在很多森林被毁掉，你会去做植树志愿者(a volunteer planter)吗？
2，但有人认为，说来容易做来难，植树造林面临很多困难，自己拟定2-3个方面。
3，最后请陈述你的观点！
Would you like to be a tree planter when you are older Why or why not
…
Have a try
P1. Lungs ,breathe, remove ,cut down
P2. However,it's easier said than done ,firstly, secondly(what's more),At last,---
P3. Even though ,---. I belive/am sure that
Speaking
Planting trees may be hard in life,we are happy in spirit!
History is created by the bravers!
We learn: 1. Some words: dry,remove,replace insect bite planter
2. Some phrases: cut down; face difficulties;so that; even though
3. Some sentences:
(1)Without them, it cannot breathe.
(2)Even though tree planting is very difficult,they love the job.
We can: 1. Use the compound sentence correctly.
2. Realize the importance of the forest.
Summary
By flyingbird