A. Choose the best answer Zeus and the Bears（大熊座、小熊座背后的神话故事）
URSA MAJOR, or the Great Bear, is one of the most recognizable constellations(星座). Have
you ever seen it in the night sky? And did you know that it has a connection to Greek mythology? Ursa Major used to be a beautiful woman. She once won the heart of Zeus, the god of the sky.
According to Greek mythology, Zeus had many human girlfriends. One of them was Callisto. Zeus used to visit her regularly, and this angered his wife Hera.
One day, Zeus was walking through the woods with Callisto. Suddenly, he saw Hera coming. Not knowing how to hide Callisto, he turned her into a giant bear.
When Hera arrived, she saw Zeus walking by himself in the forest. But Hera knew her husband well. She didn't believe he was there alone. She ordered that they return together to their home on Mt. Olympus. Zeus didn't want to go because he knew he had to bring Callisto back to human form before returning to Mt. Olympus. But since Hera insisted, he had to leave immediately.
Zeus left Callisto living on as a bear. That same day, Arcas, the son of Zeus and Callisto, was hunting in the woods. He saw the big bear and shot at it. It was a successful attack. But before Arcas ' surprised eyes, the dying animal started changing back into Callisto. Arcas saw his mother with an arrow (箭) in her heart and started crying loudly for what he had done.
Arcas realized that it was a trick played by Zeus. He became even angrier and started crying louder. Zeus heard him and understood that Hera could hear the man as well. He quietly returned to Earth and asked Arcas to hide the secret. Zeus changed Callisto back into a bear and made her one of the largest constellations in the sky. It's known as the Great Bear. Zeus also turned Arcas into a smaller constellation. It's known as the Little Bear, or Ursa Minor.
As you look up at the night sky, you can see Ursa Minor turning toward Ursa Major. According to Greek mythology, it's Arcas looking at his mother.
