1.a； (1) The word "zhi" in item A is an auxiliary word and has no practical significance. The word "zhi" in the other three items is a pronoun (2) His son can't do anything about this situation. (3) The former "Qi" refers to the son of Ai Zi, and the latter "Qi" refers to the grandson of Ai Zi. (4) For example, in the process of educating children, we should pay attention to methods and strategies to avoid rough corporal punishment and disguised corporal punishment. (5) Answer: Brief Reference Translation: Ai Zi has a grandson who is in his teens. He is lazy and stubborn and doesn't like reading. (Shorty) often hits him with a eucalyptus stick, but he never changes. Grandson's father has only one child, and he is often worried that the child will die because he can't help being beaten with a stick. So whenever the father hits the child with a stick, he cries out in tears. Ai Zi said angrily, "Isn't it good for me to discipline the children for you?" At some point, he hit his grandson harder, and his son was helpless. One winter morning, it snowed heavily, and my grandson was playing with snowballs in the yard. Ai Zi appeared, stripped off his grandson's clothes and made him kneel in the snow, shivering with cold. The son did not dare to plead again, so he took off his clothes and knelt beside his son. When Ai Zi saw this, he was shocked and asked, "Your son is at fault and deserves this punishment; What crime did you commit, kneeling with him? " The son cried and said, "If you freeze my son, I will freeze your son." Ai Zi couldn't help laughing and forgiving their father and son.