Unit 3  Lesson 18 Never Catch a Dinosaur 课件(共17张PPT)

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(共17张PPT)
Unit 3
Safety
Lesson 18
Never Catch a Dinosaur
What does this sign mean ( )
A. You can smoke here.
B. Don’t smoke!
C. There doesn’t sell cigarettes.
B
Review
What does this sign mean ( )
A. Be careful !
B. Here is a shop.
C. Don’t run.
A
Review
What does this sign mean
( )
A. Don’t...