The very old man and the very old woman are protagonists, the very old man is round character, but the very old woman is flat character. The reason is that the very old man was hesitant when he saw trillions of cats. But, he becomes pleased to treat the only cat intently in the end. Other millions of cats, billions of cats and trillions of cats are foil character, and all of them are round characters. The trillions of cats are amicable at first. However, they become inharmonious and begin to quarrel after the very old man told them that he can only choose one cat. The ways characters are revealed are "What the narrator says about the character" and "What the character actually does". The setting is backdrop because the author said "Once upon a time" at first. The narrative point of view is Omniscient Narrator. The plot is dramatic. The problem is that the very old man and woman didn't have any posterity, so they are very lonely. In order to solve this unhappy problem, they decided to keep a sweet little cat. The man was hesitant to choose a cat, so he attracted trillions of cats to his house. Fortunately, they find a thin and scraggly cat to keep, and then they live a happy life.
The first moral is "Do not be hesitant, or you will have none." The second moral is "The appearance is not everything. We can change it with our great efforts." The author use easy words, short sentences, dialogue, and some onomatopoeia.
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In my opinion, although the pictures are not so colorful, the simple structures are easy to know. The easy words and the repeated sentences are both jammy to children. Besides, the onomatopoeia can attract children's attentions. The most important thing is that the author uses cat to be the main idea. Most children are interested in keeping animals, so this book can teach children a little bit about how to keep a cat. And they cannot abandon animals, even though the animal is not beautiful. Although, I know that we cannot see trillions of cats in one place, especially in a hill. They cannot drink all of the water and eat all of grass.