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How do you sort the garbage you’ve collected
on your own Clean-up Day.
plastic bottles...
paper bags
and cups...
lunch boxes
soft drink cans, plastic bottles,
waste paper, glass, paper bags
and cups ...
batteries ...
Review
What should you do if you would like to be a greener person?
You should sort the garbage.
=You ought to sort the garbage.
ought to 应该 情态动词
ought to +动词原形
ought not to + 动词原形
You should /ought to …
shut off the electricity
n.电，电能
关闭
e.g. You should / ought to shut off the electricity when you leave a room.
You should/ought to ride a bike to your school.
You should/ought to take a bus to school instead of taking a taxi.
You should/ought to take a cloth bag when you go shopping.
1b Listen to 1a and choose the correct answers.
1.Jane and Michael are mainly talking about _______.
why we should shut off the electricity when we leave
what should use when we go shopping
how to be a greener person