Module 4 Unit 12 The earth 第1课时 课件（27张PPT）

(共27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
课堂导入
ocean
想一想，地球上都有什么？
课堂导入
land
想一想，地球上都有什么？
课堂导入
forest
想一想，地球上都有什么？
课堂导入
lake
想一想，地球上都有什么？
Earth
forest
land
Look and learn
ocean
Learn and say
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.
Learn and say
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.
Learn and say
单元新词
Earth
地球
例句 We live in the Earth.
我们居住在地球上。
单元新词
part
地区；区域
例句 This part is for factories.
这片区域是工厂区。
单元新词
forest
森林
例句: There is a hill behind the forests.
这片森林后面有一座小山。
单元新词
land
陆地
例句: I can stand on the land.
我可以站在这个陆地上。
单元新词
ocean
海洋
例句: This is the ocean.
这是海洋。
单元新词
rubbish
垃圾
例句 Don't throw rubbish everywhere.
不要把垃圾扔得到处都是。
知识讲解
句型“Can I/we+ 动词（短语）原形（+ 其他）？”用于询问对方自己是否可以做某事。肯定回答为“Yes, you can.”；否定回答为“No,you can't.”。
Can we do anything to help the Earth
我们能做什么帮助地球？
例 —Can I use your English book？我能用你的英语书吗？
—Yes, you can. 是的，你能。
知识讲解
例 You should stop talking in the library.
你应该停止在图书馆里说话。
We should stop cutting down so many trees.
我们应该停止砍伐这么多的树。
（1）句型“主语 +should+ 动词（短语）原形（+ 其他）.”用于表示建议或劝告。should 为情态动词，其后的动词用原形。
知识讲解
(2)stop doing sth. 意为“停止做某事”。
stop 后也可跟动词不定式， 两者区别如下：
短语 用法
stop doing sth. 强调停下手头的工作
stop to do sth. 强调停下手头的工作去做另一件事
Learn and say
Write the words in the boxes. Then talk about the Earth.
forests
land
ocean
Learn and say
Write the words in the boxes. Then talk about the Earth.
The Earth was ... and ... in the past, but now some parts ...
We should stop ...
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
随堂练习
单项选择。
1. Stop ______ flowers in the park!
A. pick B. picking C. to pick
2. Can we do ______ to keep the Earth clean？
A. anything B. everything C. anyone
3.We should bring our own shopping bags and stop using ______ when shopping.
A. plastic bags B. handbags C. schoolbags
随堂练习
用适当形式填空
1. How dirty the air is! I must ______(stop) __________(pollute) air.
2. I think air ______(be) clean in the past. But now it ______dirty.
3. Air _______(keep) high in the sky.
4. The walls ________(be) dirty and the bin _______(be) full last night.
5. It's _______(snow) outside. I like _______(snow) weather.
stop
polluting
was
is
keeps
are
was
snowing
snowy
课后作业
熟读Listen and say 部分，尝试用书中学到的句型造句。
抄写、背诵本课时中学到的单词、短语和重点句型。