1. Unit 4 Be good to our Earth
Ought to
Unit 4
Be good to our Earth

2. Ought to
We use ought to to talk about rules.

3. We ought to bring our shopping bags.
Example 1
We ought to bring our shopping bags.

4. We ought to recycle newspapers and magazines.
Example 2
We ought to recycle newspapers and magazines.

6. We donate old toys and clothes. ought to
Question 1
ppt_4b_u4_102
We donate old toys and clothes.
ought to

7. Question 2
We use less water.
ought to

8. use / fewer plastic bags ought to use fewer plastic bags
Question 3
use / fewer plastic bags We
ought to use fewer plastic bags

9. We ought to stop chopping trees down.
Question 4
stop / chop trees down
We ought to stop chopping trees down.

10. We ought to reuse glass bottles.
Question 5
reuse / glass bottles
We ought to reuse glass bottles.