Unit 7 Protect the Earth（Grammar-Fun time） 课件（共15张PPT）

(共15张PPT)
Unit7 Protect the Earth
Grammar time
Can you guess the riddles？
你能猜出这些谜语吗？
coal
We can use it to make paper, chairs and many other things .It comes from trees.
paper
wood
plastic
oil
Earth
Unit7 Protect the Earth
It’s important.
We use it
every day.
We use it
to clean
things.
Water
Most of it
comes from
coal and oil.
It’s useful.
Energy
We use them
to make a lot
of things.
They can keep
the air clean.
We use it
to make
bags and
bottles.
Trees
But we
shouldn’t
use too
much.
Plastic
Guess！ 根据提示猜单词
Protect the Earth
What should we do
Let’s try to be “the Environment Protector”!
环保小卫士
Protect the Earth
各组选出一幅最佳标语，参加评比：4，3，2，1
给下列图片想一个标语吧!
Task1
Protect the Earth
To protect the Earth, what should（not) we do
We should/shouldn't...
Task2 Know how to protect the Earth
Unit7 Protect the Earth
should:情态动词，含义是应该，后面跟动词的原型。should的否定形式是should not,后面仍旧跟动词原型哦！
Unit7 Protect the Earth
2人小组，合作说一说
To protect the Earth, what should we(not) do
We should(not)…
Unit7 Protect the Earth
1.We __________waste water.
We____________reuse and save it.
2.We _________save energy.
We ___________waste energy.
3.We __________drive too much.
We __________take the bus or the metro to school.
4.You _________cut down too many trees.
You _________plant more trees.
5. He _________keep quiet in the library.
He __________eat or drink there.
6. Bobby _______litter.
He __________put rubbish in the bin.
7. They ___________use cloth bags.
They ______use too many plastic bags.
shouldn’t
should
shouldn’t
should
should
should
should
should
should
shouldn’t
shouldn’t
shouldn’t
shouldn’t
shouldn’t
Unit7 Protect the Earth
What do we use water to do
What do we use wood to do
Let's review根据课文回答
We use water to...
We use wood to...
We use plastic to...
What do we use plastic to do
2人小组讨论，想一想还有哪些功能？
Task3 Know how to use things correctly.
use to
使用某物某事做…
sth
do sth
Unit7 Protect the Earth
use…to …
2人小组，合作说一说
Task4 Know how to reuse the things
I can reuse paper to make a box.
I can reuse a plastic bottle to make a toy.
Protect the Earth
I can reuse to make .
How can you reuse these things
paper
plastic
Tips:利用现有物品或废品制作出一件有创意且精美的作品，然后向大家展示和介绍其用途！
Protect the Earth
Make and show!
I/We use … to … .
I/We can reuse … to make … .
Look, it ‘s …. .
We can put… in the … .