You probably know this story. But it is great reading practice. It prompts discussion, and it teaches a common idiom: "to cry wolf." What does it mean? And what do we learn from this story?
A shepherd boy, who watched a flock of sheep near a village, brought out the villagers three or four times by crying out, "Wolf! Wolf!" and when his neighbors came to help him, laughed at them. The wolf, however, did truly come at last. The shepherd boy, now really alarmed, shouted in terror: "Come and help me; the wolf is killing the sheep." But no one listened to his cries, nor gave any help. The wolf happily killed the whole flock.