After a moment, the father yet again asked his son for the fourth time,"What is that?"This time his son shouted at the father,"Why do you keep asking me the same question again and again? I have told you already, 'IT IS A CROW.' Are you not able to understand this?"

　　A minute later the father went to his room and came back with a diary, which he had kept since his son was born. On opening a page, he asked his son to read that page.

　　"Today my little son aged 3 was sitting with me on the sofa when a crow suddenly landed on the window edge. My son asked me 23 times what it was, and I replied him 23 times that it was a crow. I hugged him lovingly each time he asked me the same question. I did not at all feel angry, but instead felt affection for my son."

　　If your parents reach old age, do not look at them as a burden, but speak to them gently, and be kind to them. From today say this aloud,"I want to see my parents happy forever. They have cared for me ever since I was a little child. They have always showered me with love. I will take care of my old parents in the BEST way no matter how they behave."

　21. The writer mainly intends to ________.

　　A. call on us to love our parents

　　B. tell us the function of a diary

　　C. teach us what a crow is

　　D. introduce a pair of son and father

　22. We can know that the father wrote this diary at the age of ________.

　　A. eighty B. thirty-eight C. forty-five D. thirty-five

　23. The underlined word "affection" probably means ________.

　　A. puzzle B. hatred C. worry D. love

　24. Why did the father ask his son questions about the crow?

　　A. He wanted to test his son's patience.

　　B. He had trouble in hearing.

　　C. He tried to remind his son of what he did in the past.

　　D. He didn't want to be treated as a burden.

　　　　　　　　　　　　　B

　　I had been in the city for some time and was coming home. I missed my boat and decided to travel on an old ship. I knew that it would not be a comfortable journey but I had no time to wait for another boat.

Hardly had we left the port when I saw the dog Gulliver, the captain's favourite dog, for the first time. What a big dog it was! I had never seen one that could frighten me so much!

On the third day the ship caught fire. Nobody tried to put it out. The ship began sinking and all the men rushed to the life-boats. I saw no chance of getting away in a boat. Suddenly I remembered there was a life-raft on the ship. I had no time to lose, so I immediately rushed towards the raft and pushed it