(共15张PPT)
Section A (2b, Grammar Focus- 4c)
Watch the video.
The song is about_________________________.
environmental protection
What did the earth use o be like
What is the earth like now
What did the earth use to be like What is the earth like now
Find the differences.
The trees
____________________.
2. The animals
____________________.
3. People
___________________.
4. The soil(土壤)_________.
5. The air _____________.
1.The trees have been_______.
2. The animals
____________________.
3. People have met
________________________.
4. The soil
____________________.
5.The air
_____________________.
used to grow well
cut down
used to live freely
are killed/ endangered
used to live happily
kinds of disasters (灾难)
used to be rich.
is not suitable for plants to grow
used to be fresh
has been polluted
Come up with the problem:
What causes so many changes to the earth
1. People have destroyed ____________________.
the balance of nature
平衡
2. Air has been _____________.
polluted
water /air pollution
noise/ air pollution
3.Lots of trees _______________.
have been cut down
Analyze(分析) problems
破坏
Analyze problems.
What can we do to help save the earth
(Two heads are better than one.)
Take action:
We should/ shouldn’t….
We’re supposed to….
We’re not supposed to….
We must/ mustn’t….
We’d better (not)….
Solve the problem.
Our actions can make a difference.
Look and predict.
Look at the picture and predict.
The girl in the picture is taking action.
1). What are the green bags
2). What is she going to do
cotton bags
go shopping
Interviewer: Jason and Susan, what are your ideas for solving
these problems
Jason: Well, to cut down air pollution, we should take the bus or
subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages of bike
riding. It’s good for health and it doesn’t cost anything!
Interviewer: Great ideas! What about waste pollution
Susan: Mmm, I think simple things like bringing a bag to go
shopping can help. I started doing that a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic forks
when I buy takeaway food. I use the ones at home.
Susan: And remember to throw rubbish in the bins and keep public
places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead
to a better future!
Listen and read.
SB P 98 2d
Susan and Jason have some ideas for saving
the earth. What pollution is mentioned
air pollution
waste pollution
land pollution
Interviewer: Jason and Susan, what are your ideas for solving
these problems
Jason: Well, to cut down air pollution, we should take the bus or
subway instead of driving.
Susan: Yeah, or ride a bike. There are other advantages of bike
riding. It’s good for health and it doesn’t cost anything!
Interviewer: Great ideas! What about waste pollution
Susan: Mmm, I think simple things like bringing a bag to go
shopping can help. I started doing that a year ago.
Jason: Me, too. Also, I never take wooden chopsticks or plastic forks
when I buy takeaway food. I use the ones at home.
Susan: And remember to throw rubbish in the bins and keep public
places clean and beautiful for everyone.
Interviewer: So together, our actions can make a difference and lead
to a better future!
Listen and read.
SB P 98 2d
What things do Jason and Susan often do
to protect the environment
Problems Solutions
air pollution
waste pollution
wooden chopsticks or plastic forks
rubbish
take the bus, subway or ride a bike instead of driving.
bring a cotton bag to go shopping.
use chopsticks or forks at home.
throw rubbish in the bins.
Challenge yourself.
Our actions can make a difference to the environment and lead to a better future!
Even a small force is a kind of support!
(再小的力量也是一种支持!)
People _________ think that big things ____________ be done to save the earth. However, many forget that saving the earth begins with small things. For example, you _______________ save electricity by turning off the lights when you leave a room. You _______________ also use paper or reusable bags instead of plastic bags. I think it’s a great idea that you now _______ pay for plastic bags in some stores. And instead of driving to school or work, you _______________ ride your bike or walk. If it’s far, you _____________ take the bus. All these small things __________ add up and become big things that _______________ improve the environment. Let’s take
Work on 4b
Saving the earth begins with small things.
What are small things mentioned in the passage.
Let’s fill in the blanks first.
may/might
must / have to
can / should/ could
can/should/could
have to
can/should/could
can/could
can/could
can/would/could
People may/might think that big things must/ have to be
done to save the earth. However, many forget that saving
the earth begins with small things. For example, you can/ should/ could save electricity by turning off the lights when you leave a room. You can/could/should also use paper or reusable bags instead of plastic bags. I think it’s a great idea that you now have to pay for plastic bags in some stores.
And instead of driving to school or work, you can/could/
should ride your bike or walk. If it’s far, you can/could take the bus. All these small things can/could add up and become big things that can/would/could improve the environment. Let’s take action now!
Read and answer.
Saving the earth begins with small things.
What are small things mentioned in the passage
Fill in the blanks with the correct forms of the verbs in brackets.
Joe: ____you ever ______ (take) part in an environmental
project
Ken: Yes, I have. I ______(help) with a Clean-Up Day last year.
It was __________(consider) the biggest clean-up project
this city _______ever _______(have).
Joe: How many people ________(take) part
Ken: I ________(think) more than 1,000 people _______(come)
to help out .
Joe: That’s fantastic ! I guess everyone in this city is ______
(try) to improve the environment .
Ken: Yes, we can’t afford to _______(wait) any longer to take
action!
Have
taken
helped
considered
had
had
took
think
came
trying
wait
Work on 4a.
Ken is also a person whose action can make a difference.
As a student,
What should we do to protect the environment
As a student, we should play a part in it, we should ….
We can ….
We are supposed to ….
We are expected to ….
Our actions can make a difference to the environment and lead to a better future!
All these small things can add up and become big things that could improve the environment. Let’s take action now!
