It is summer. A hungry and thirsty fox sees some round purple grapes on a very tall tree. He jumps and jumps. He wants to get the grapes. Again and again he jumps, but he can't get them. They are so high. Then he has an idea. He uses a ladder（梯子）to get the grapes. At last he says to himself, "I can get the grapes with the ladder. I can get the food with my hands. And I'm sure（确信）they are the best（最好的）grapes in the world（世界）."
