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Review
A weather report in 2060
We should protect the environment.
We ought to become a greener person.
情态动词+动词原形
ought to = should
ought not to=shouldn’t
更环保的
We __________ cut down trees.
We ______ ____ ____ cut down trees.
shouldn't
ought not to
Discuss in groups
How to be a greener person?
1. sort the garbage
How to be a greener person? We ought to…
2. plant trees
3. water flowers
5. turn off the lights
4. save water
should…
shut off the electricity
关闭
n.电，电能
6. ride a bike to school
7. take a bus to school instead of taking a taxi