One morning a man was crossing a narrow bridge when he saw a fisherman on the shady bank of the deep，smooth river under him，so he stopped to watch him quietly.
After a few minutes，the fisherman pulled his line in. There was a big，fat fish at the end of it.
The fisherman took it off the hook and threw it back into the water. Then he put his hook and line in again. After a few more minutes he caught another big fish. Again he threw it back into the river. Then，the third time，he caught a small fish. He put it into his basket and started to get ready to go. The man on the bridge was very surprised，so he spoke to the fisherman. He said，“Why did you throw those beautiful，big fish back into the water，and keep only that small one？”
The fisherman looked up and answered，“Small frying pan.”
/ adj.成荫的，背阴的：They walked down the shady side of the street. 他们沿着街道阴凉的一侧走。
/ n.河岸：Some people were fishing along the banks of the river. 一些人在河的两岸钓鱼。
/ adj.光滑的，平缓的：This paper is not smooth enough. 这纸不太光滑。
/ n.钩子：Put your coat on the hook over there. 把你的外套挂在那边的钩子上。
❶ Why did the first man in this stroy stop on the bridge？
❷ What did the fisherman do when he caught the first fish？
❸ What did the fisherman do when he caught the second？
❹ What did the fisherman do when he caught the third？
❺ Why didn’t the fisherman keep the first two fish？