I recently heard a story about a famous scientist. Because of his great achievements, he was thought to be more creative than the common person. When he (ask)why he was able to do this, he gave the answer. It all came from an experience with his mother when he was about three years old." I (try)to get a bottle of milk from the fridge when I dropped the bottle and it fell. spilling(滋出)the milk all over the floor-a sea of milk！I was frightened and I didn't know what to do!" he said.

    His mother heard the noise and got into the kitchen. "I (consider)how to explain all this to you. Mum." he said. Instead of him, she said. "Robert, what a great mess you have made! I (not see)such a huge sea of milk before! Well, since the milk has already been spilled, would you like (play)in the milk for a while? We (clean)it up after that." Then, he did so. After a few minutes. His mother said. "You know. Robert. whenever you a mess like this, finally you have to clean it up." He used a sponge(海绵)and together they cleaned up the spilled milk.

    His mother then said. "You know, we how to successfully carry a big milk bottle with two tiny hands just now. Let's go to the yard and fill the bottle with water to see if you (discover)a way to carry it." Then the little boy learned that if he grasped (抓紧)the bottle at the top with both hands, he could carry it without dropping it.

    What a wonderful lesson!