One day while driving from my home to work. I noticed a car in front of me had a wobbly(不稳定的)wheel. It was clear that the wheel had been changed recently and had not been fixed correctly. On a slow road this would not show much of a problem but I knew a highway was coming soon. There the traffic would move much faster and the driver would be in danger as the wheel could come off at that speed.

    I was driving a large jeep at the time and the car in front was a small one driven by a young lady on her own. So as I tried to flash(闪)my lights and wave her to pull over,  I was worried that she wouldn't' pull over on the road side when she found in her mirror a single man chasing(追) her down in a jeep and waving for her to pull over.

    Thankfully. she trusted more in the good nature of people and pulled over where I could explain the problem. She said the wheel was changed only the night before and that she would pull into the nearest garage(修车间)where the repairman had tools to fix the wheel correctly.

    My belief is that the act of kindness was hers and not mine. How so? Well, it was she who chose to believe in the possibility that people are good over the belief that bad things would come from being waved over to the side of the road by strangers.

    I am glad I was able to wave her down in time and so a serious accident might have been avoided. But I am even happier that she believed in a stranger.

    That warm day was the only day of the week without rain. I opened the door, took a seat and began to enjoy the wonderful sunshine. Suddenly, I noticed that the house near mine had been sold. An elderly lady was in front of the door, with some beautiful flowers beside her. I walked to her. She looked to be in her early eighties and had the prettiest white hair.

    "Hi! My name is Karmen," I said smiling brightly at the old lady. She smiled back and said. "Hello, Karmen. I'm Henrietta." Her voice was very strong for someone at her age. Later, I learnt she was alone and had no family or relatives to help her. From that day on, I often visited her and helped her with her housework and sometimes she gave me some delicious food. A year passed, and I considered Henrietta to be one of my best friends.

    One day, I walked over for my morning visit and knocked on the door, but there was no answer. I knocked again, and she still didn't turn up. So I let myself in, using the key she had given me. I checked her living room and then her kitchen. I finally went into her bedroom, and she was lying peacefully on her bed. Beside her there were two notes. One was her will, which said all that she had would be given to me. The other was a thank-you note. I went to her bedside and cried sadly.

    Though several years have gone by, I still miss her deeply. Whenever I look at the beautiful flowers in front of her house. I remember the wonderful friendship we had.

    The robin (知更鸟) stood on an old climbing plant, and sang his most beautiful song. Suddenly the wind made the plant move, and Mary saw something under the dark green leaves. The thick, heavy plant was covering a door. Mary's heart was beating fast and her hands were shaking as she pushed the leaves away and found the keyhole. She took the key out of her pocket, and it fit the hole. Using both hands, she managed to unlock the door. Then she turned round to see if anyone was watching. But there was no one, so she pushed the door, which opened, slowly, for the first time in ten years. She walked quickly in and closed the door behind her. At last she was inside the secret garden!

    It was the loveliest, most exciting place she had ever seen. There were old rose trees everywhere, and the walls were covered with climbing roses. She looked carefully at the grey branches (枝条). Were the roses still alive? Ben would know. She hoped they weren't all dead. But she was inside the wonderful garden, in a world of her own. It seemed very strange and silent, but she did not feel lonely at all. Then she noticed some small green shoots coming up through the grass. So something was growing in the garden after all! When she found a lot more shoots in different places, she decided they needed more air and light, so she began to pull out the thick grass around them. She worked away, clearing the ground, for two or three hours, and had to take her coat off because she got so hot. The robin hopped around, pleased to see someone gardening.

    “Everything happens for the best, (一切都会变好的)" my mother said, whenever things weren't going my way. "Don't worry. One day your luck will change."

    After I had finished my college education, I discovered that Mother was right.

    I had decided to try for a job in radio. I wanted to host a sports program. I went to Chicago and knocked on the door of every station. But I got turned down every time. In one station, a kind lady said my problem was that I hadn't got enough experience. "Get some work in a small station and work your way up, "she said.

    I went back home. I couldn't get a job there, either. I felt really down. “Your luck will change, " Mom said to me. I tried another radio station in lowa. But the owner told me he had already had someone.

    As I left his office, I asked, "How can someone be a sports announcer(播音员)if he can't get a job in a radio station?" I was waiting for the lift when I heard the man call, "What did you mean? Do you know anything about football?" He put me in front of a microphone(麦克风)and asked me to try to imagine that I was giving my opinion on a football game.

    I succeeded!

    On my way home, Mom's words came back to me, "One day your luck will change, Son. And when it happens, you'll feel doubly good because of all the hard work you've done." At that moment I knew just what she meant.

    Hello, everyone! I'd like to tell you something about a famous scientist named Qian Xuesen. He was born in Hangzhou, Zhejiang Province on December 11, 1911. After he graduated from Shanghai Jiao Tong University in 1934, he got a chance to study in USA. After he graduated, he became a teacher as well as a researcher who studied rockets and missile theories.

    When he was 44, he returned to his motherland and the country's space research was almost a blank. In 1956, he set up the first research institute of rockets and missiles. He made such important contributions to the missile and space programs that he was honored as "The Father of China's Missiles". The Chinese people are proud of him.

    He passed away on October 31, 2009 at the age of 98, but all the Chinese will remember him forever. His devotion to his country was expressed in his saying, "My career is in China, my success is in China and my destination is in China!" When someone said he could make much more money if he stayed in the United States, he laughed and said," My family name is Qian, but I don't like qian." His spirit encourages us to love our country and devote ourselves to science.