根据短文内容，选择正确答案。

    Kyle walked up and down as he waited for his turn at the back stage. This would be his most important piano performance yet. At ten years old, he was the youngest performer in the Christmas concert. Although his teacher Ms. Neal said he was good enough at the song he would play, he still practiced it more than 30 times that week. When he closed his eyes at night, the music played over and over again in his mind

    Now, the day finally arrived, but Kyle was not sure he was ready. He kicked a small ball which was picked up from a Christmas tree, and then looked himself in a mirror—trying to make his bow tie more smooth and beautiful. He thought of his mom who bought him the new suit with this bow tie. He would make her feel proud of him. He noticed that his hands were shaking. How could he play the notes of the song if his hands were shaking? He took a deep breath and tried to calm down, but his hands shook more.

At this time, Ms. Neal walked up to speak to him. “I have something for you,” she said, putting a smooth black stone into Kyle's hand. “It's a special stone. There's no other one like it in the world. You've practiced so much, so you don't need anything else.”

    The stage lights reflected on it. “Thank you.” Kyle said.

When Kyle's name was called, he rubbed the stone, stepped onto the stage, and played better than ever. After his performance, he noticed that Ms. Neal had a whole bag of black stones. “Why did you say this one was so special?” he asked.

His teacher smiled, “Like your talent, it is special because it belongs only to you.''

    Doctor Seuss was born in 1904. By the middle 1950s, he had become one of the best-loved and most successful children's book writers in the world. His books are very popular with young readers. They enjoy the invented words and the pictures of unusual funny animals and plants.

    In 1954, life magazine published a report about school children who could not read. The report said many children's books were not interesting. Doctor Seuss strongly hoped to help children and decided to write books that were interesting and easy to read. He used words with the same ending sound, like fish and wish. He did not receive training in art. Yet, he drew the pictures for most of his books.

    In 1957, Dr. Seuss wrote The Cat in the Hat. He used less than 230 words to write the book and even a six-year-old should be able to read it. It was a fun story and easy to read. Children loved it. Their parents loved it, too. Today it is still one of the stories they like best. The success of The Cat in the Hat made him want to write more books for children. In 1960, he wrote a book using less than fifty words. The book is called Green Eggs and Ham.

    In 1984, Doctor Seuss won a Pulitzer Prize (普利策奖). He was honored for the education and enjoyment his books provided American children and their parents.

    He died at the age of 87, but his influence remains. Millions of his books have been sold worldwide. People say his books helped change the way American children learned to read. Yet, his books are loved by people of all ages. Doctor Seuss once said, “I do not write for children. I write for people.”

    Roger, a young man from China, has taught Chinese in a primary school in England for 3 years. A lot of children like his class and he enjoys teaching them very much. All the pupils are quite interested in what Roger teaches them. They learn quickly and do everything carefully.

    One day he said to the children, “People in a lot of Asian countries wear white clothes at funerals(葬礼), but people in America and in Europe wear white in the weddings because white means purity and happiness. What color does an English woman wear when she gets married?”

    Mary said, “White, sir, because she is happy.” “That is good, Mary,” Roger said. “You are quite right. She wears white because she is happy.”

    But then one boy in the class put up his hand. “Yes, Dick?” Roger said, “Do you have a question?” “Yes,” Dick said. “Why do men wear black in our country when they get married, sir?”