There was once an old and deep well

There was once an old and deep well. People got water by dropping a bucket(木桶) tied to a rope. The rope passed over a wheel just above the well. On the other side of the rope was another bucket. A strong pull brought one bucket to the top while the other down to the water. They always passed each other on the way up and down, but never had time to speak. At last, the rope became worn. So a new rope had to be put in its place. While this was being done, the two buckets were left standing together near the well. “What a boring life we have!” said one bucket to the other. “I am quite tired of it. No matter how full we come up, we are always sent down empty.” But the other bucket laughed and said, “What a funny way you have of looking at things! Don't you see that whenever we are sent down empty, we always come up full?” Boys and girls sometimes talk like these two buckets. You may hear one of them say, “Just as we are having a good game,we are made to stop and go to work again.” “Yes,” the other will reply, “but as soon as work is over, we always get to go out and have fun again.” There are two ways of looking at things. If you want to be happy, look at the bright side.4.What were the buckets tied to?(不超过10个词) 5.Where did the two buckets talk with each other?(不超过10个词) 6.What does the story tell us?(不超过15个词)