There’s a tall tree in the forest.A snail lives under the tree.He is little.He has a shell.But he wants to climb to the top of the tree .（树顶上）He wants to see the big world .（世界）

He climbs slowly.

A mouse says:“Hey,Mr.Snail.Look,my tail is long.My ears are small.I can climb fast.You climb slowly.You can’t climb to the top of the tree.”

  The snail says:“Let me try.”

Then he climbs again.He sees a parrot.The parrot says :“Hey,snail.My mouth is big.My wings are beautiful. I can fly.You have no wings.You can’t fly.You can’t climb to the top of the tree.”

The snail says:“Let me try.”

Then he climbs again.He sees a giraffe.The giraffe says:“Look,Mr.Snail.My neck is long.My legs are long. I’m tall. You’re so little,the tree is so tall. You can’t climb to the top of the tree.”

The snail says:“Let me try.”

Then he climbs again.He climbs and climbs. At last（最后）,he climbs to the top of the tree.He sees the beautiful world.