Module 4 Unit 12 The earth 第3课时 课件（14张PPT）

(共14张PPT)
Module 4 The natural world
Unit 12 The earth
学习目标
单词：Earth; part; forest; land; ocean; rubbish; sick; recycle; glass; own
句型：1. Can we do anything to help the Earth
2. We should stop cutting down so many trees.
语法：能看明白地图上所标的颜色及所代表的部分
Earth
forest
land
课堂回顾
ocean
Ms Guo: Look at the picture. What is it
Kitty: It's the Earth.
Ms Guo: The green and brown parts are forests and land. What are the blue parts
Joe: I think they're oceans.
课堂回顾
Ms Guo: Yes, they are. The Earth was very clean and beautiful in the past, but now some parts are dirty. Can we do anything to help the Earth
Alice: Yes. We should stop throwing rubbish into rivers.
Peter: We should stop cutting down so many trees.
Kitty: We should stop using plastic bags.
课堂回顾
Ask and answer
What should we do to save the Earth Put a tick (√) or a cross (×) in the box. Then talk about it in groups.
1. We should cut down trees.
2. We should build more factories and houses.
3. We should write on both sides of paper.
4. We should use more plastic bags and bottles.
5. We should not litter.
6. We should throw rubbish into rivers.
7. We should stop killing wild animals.
8. We should walk or ride a bike more often.
Ask and answer
What should we do to save the Earth Put a tick (√) or a cross (×) in the box. Then talk about it in groups.
S1: What should we do to save the Earth
S2: We should ...
S3: We should ...
S4: We should stop ...
Think and write
The Earth was clean and beautiful.
Now some parts are _________________.
We should _________________________.
We should stop______________________
__________________________________
__________________________________
The Earth is sick!
Review the sounds
sheep ship food foot
bed bad water what
father brother purple paper
Review the sounds
pig big piece please
hat bed boats beds
back bag rich orange
leaf leave sure pleasure
both with tree dress
随堂练习
（ ）1. A. father B. water C. bad
（ ）2. A. sure B. pleasure C. please
（ ）3. A. both B. tooth C. thank
（ ）4. A. tree B. try C. train
（ ）5. A. worker B. teacher C. paper
判断各组划线部分发音是（A）否（B）相同。
B
B
A
A
A
Reading
Eric has an important job. He is a garbage collector. He works in a team. There are three workers in the team: Eric, Barry and Joe. They collect garbage from homes and businesses. Barry drives a big truck. Eric and Joe are on the back of the truck. Barry drives the truck along the streets. The truck stops beside a garbage bin. Eric and Joe get off. They bring the bin to the truck. A machine picks up the bin and pours the garbage into the truck. Eric, Barry and Joe start to work at five o'clock every morning. They work all morning and all afternoon. Every day they collect garbage from different parts of the city. Their job is important. They keep the city clean.
Reading
1. Barry is the ______ of the team.
A. garbage collector B. driver C. truck
2. ______ bring（s）the garbage bin to the truck.
A. Barry B. Eric and Joe C. A machine
3. The team starts to work ______.
A. early in the morning B. late in the afternoon C. in the evening
4. Each day the team collects garbage from ______.
A. homes B. businesses C. different parts of the city
课后作业
复习本单元学习的单词、短语和重点句型。