"Listen carefully to what I say," the time traveler said, "I shall tell you something that you will not agree."  

 "Why will we not agree?" I asked.

 "Because the science and mathematics you know are not correct,"  he said. "You believe there are only three dimensions(三维空间)-length, breadth(宽) and thickness." 

 "There is nothing to argue with that, " the youngest member of our little group said.

 "Exactly!"  the time traveler answered, "But there is also a fourth dimension - time."   

 "We all know about time, " another member of the group said. "Time passed."

 "I do not agree,"  the time traveler said, "Length, breadth and thickness do not pass. They stay in the same place in space.  We move about them. I can prove that time is the same. It does not pass. We move in time the same way that we move in breadth, length and thickness."

 None of us believed the time traveler, and we argued with him for many hours.

 "If we could travel back in time,"  the scientist said, "We could do things to change the future." 

 "If we could travel forward in time," the doctor(博士) said, "we could do things that change our present." 

 The time traveler smiled, "It is clear," he said, "that there is only one way I can show you that I am right. We must do an experiment. Please wait here." 

 He left the room and soon returned, carrying what looked like a clock.

 "This is a model of a time machine. It took me two years to make it," the time traveler said. "I want all of you to understand that when I start the machine, it will immediately travel in time and disappear from the present." 

 He turned to the youngest of all. "Give me your hand," he said.

 The young man put out his hand. The time traveler took it and placed it on the machine. Immediately, there was a sudden wind, and the little machine disappeared.

 I was certain this was not a trick, but the doctor was not so sure.

 "Are you asking us to believe," he said, "that the machine is now in a different time?" 

 "Certainly! In my laboratory, a full-size machine is almost complete. As soon as it is complete, I shall send myself on a journey through time. Would you like to see my machine?"

 "Are you serious about this?" the doctor asked.

 "I have never been more serious about anything," the time traveler said, "Come." 

We followed him to his laboratory. There, we saw the actual machine, not quite complete, but large enough for a man to sit in.

A teenage girl couldn't stand her parents' family rules, so she left home.
She wanted to be famous. But she had poor education and several years later she had to ask for food on the street for a living. Now her father has died. Her mother is an old woman. But she is still looking for her daughter. She has been to every corner of the city. Everywhere she goes, she puts up a big photo of herself on the wall. At the lower part of the photo she writes,“I still love you . . . , come back home!”
One day, the daughter saw one of the photos. The face was familiar（熟悉）. “Is that my mother?” she moved closer and read the words“I still love you ...” She cried. When she got home, it was early morning. She knocked on the door. The door opened itself. She rushed to her mother's bedroom. Her mother was sleeping. She woke her mother up,“It's me! Your daughter is back home!” The mother and daughter held each other, full of happy tears. The daughter asked, “Why is the door not locked? A thief could get in.” The mother answered softly, “The door has never been locked since you left.”
The door of parents' love for their children will never be closed.

阅读下列短文，从下面每小题的A、B、C、D四个选项中选出最佳选项，并在答题卷上将相应的字母编号涂黑。

    Zhou Youguang, known as the "father of Pinyin" was a Chinese. He was born in Changzhou, Jiangsu Province, on 13 January 1906. At the age of ten, he and his family moved to Suzhou, Jiangsu Province. In 1918, he entered Changzhou High School.

    Zhou went to St. John's University in Shanghai in 1923. Then he went to Guanghua University in 1925. Later Zhou spent time in Japan as a foreign exchange student. After World War II, he moved to London, and then New York to work as a banker.

    Zhou returned to China in 1949 to help his country build a modern economy(经济学). In 1955, the government invited him to make necessary changes to the Chinese language. It took him about three years to design Pinyin, and it was a success.

    Today, with the wide use of computers and mobile phones, we use Pinyin to communicate with the world. The system is a bridge between China and the rest of the world."

    Zhou died on 14 January 2017 at his home in Beijing, a day after his birthday. At the time, he was the 17^th oldest living man in China.

    Deborah Ahenkorah comes from Ghana, a country in West Africa. She has loved to read since she was a little girl. But all the books she read when she was little were American books and they showed a world that was different from hers. When Ahenkorah grew up, she started Golden Baobab. It is an organization that provides African children with books written by African people.

    Golden Baobab does this in several different ways. First, it organizes programmes and workshops (讲习班). These workshops support African writers. In these workshops writers can learn new things and improve their writing. Second, Golden Baobab connects writers to publishers (出版商). Finally, it offers the Golden Baobab Prize. This is the most famous way in which Golden Baobab works. Any writer who is an African citizen (公民) can compete for the prize, and each story must happen in Africa.

    "Children need books they can relate to. When they see characters who are like themselves in a story, they know that their experiences are important," said Tiffany Morris, who works for Golden Baobab.

    According to Ahenkorah, Golden Baobab has already helped create over 850 stories. She wants to make Africa's book publishing industry a success. "We could have an industry of books, games, toys and characters that come from stories that are made just for African children," she said.

    This is a big dream and also a big challenge. But Ahenkorah and Golden Baobab are working to make it come true.

    It was Mother's Day. John was so busy with his work that he couldn't go back home. When he passed by a flower shop in the evening, an idea came to his mind. "I'll send Mom some roses (玫瑰)."

    While John was picking his flowers, a young man went inside. "How many roses can I get for only five dollars, Madam?" he asked. The assistant (店员) was trying to tell him roses were as expensive as forty dollars a dozen (一打). Maybe he would be happy with carnations (康乃馨).

    "No, I have to have red roses." He said. "My mom was badly ill last year and I didn't get to spend much time with her. Now I want to get something special, and it has to be roses, because roses are her favorite."

    After hearing it, John said he would pay the rest (剩余)of the money for the young man. Moved (感动) by both of them, the assistant said, "Well, lovely young men, thirty dollars a dozen, only for you." Taking the roses, the young man almost jumped into the air and ran out of the shop. It was well worth (值得) twenty-five dollars John paid to see the exciting moment. Then John paid for his dozen of roses and told the assistant to send them to his mother.

    When he walked out, he felt nice. Suddenly he saw the young man crossing the street and going into a park. But soon he realized it was not a park but a cemetery (坟墓). Crying, the young man carefully laid the roses, "Mom, oh, Mom, why didn't I tell you how much I loved you? God, please help me find my mum and tell her I love her."

    Seeing this, John turned and quickly walked to the shop. He would take the flowers home himself.