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清华版四年级下册《UNIT 3 WHEN I GROW UP... Lesson 17》优秀教学课件
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B.police officer
A.polace offiser
policeman
policewoman
What do you want to be when you grow up?
I want to be a
police officer.
police station
police uniform
police cap
school uniform
police car
police dog
It’s very brave and clever.
It can help the police officers.
It’s the police’s best friend.
video
Police officers direct traffic.
How to direct traffic?
Turn left!
Turn right!
Go straight!
Stop!
thieves