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Don’t walk on the grass.
Don’t shout in the zoo.
Don’t climb the tree.
Let’s go to school.
Small civilization guards.（文明小卫士）
What’s happening?
Think about:
Can Amy and Sam shout in the zoo? Why?
Don’t shout,please!
Think about:
Can Sam climb the tree?
Don’t climb the tree!
Think about:
Can Amy walk on the grass?
Don’t walk on the grass!
Don’t means:
You can’t do sth.
Look and think: What can you find?
Look and think :
Don’t sleep in class.
in class
Don’t talk in class.
Don’t eat in class.
否定祈使句
Civilization Magnifiner.（文明放大镜）
You can / Don’t……
At the library
You can / Don’t……
At school
The teachers tell us “Don’t……”