Jiajia, a third grader who was born with anemia, a medical condition in which there are too few red cells in blood, wrote an affecting article that moved many netizens.

    In the article, she shared her biggest wish: to survive so she could take care of her grandparents. Jiajia, 9, currently lives in the city of Suining in Sichuan province. In the article, she writes, "My heart gets heavier each time I see my grandma cry for me. If I ever get to grow up, I will take good care of her."

    Jiajia contracted pneumonia when she was 4 months old. Since then, she has required a blood transfusion every two weeks.

    After her parents' divorce, her grandparents took her in and faced many challenges in the process of raising her. The girl's article was only 235 words long, and it was handed in as a school assignment.

    Nevertheless, Jiajia's words "deeply impressed" her elementary school teacher, who then posted the article online, where it struck a chord with many people.

    Up till now, a fund started by teachers at Jiajia's school has reached more than 30,000 RMB, which will be put toward Jiajia's future blood transfusions.

    For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive （善于接受的） to such messages.

    Scientists are using powerful radio telescope to listen to signals from about 1,000 stars, all within 100 light years of earth. In addition, they will scan (扫视) the entire sky to “listen” for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise.

    Of the 200 billion stars in the Milky Way galaxy （银河星系）, scientists find that five percent are like our sun. Perhaps half of them have a planet like earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution of life. Based on the inhabitable (that can be lived in) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.

    However, many scientists wonder whether intelligent （有智力的） life exists on other planets. Some believe that twenty years of searching without any intelligible （可理解的） messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely.

    Other scientists believe that our search hasn't been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family in only about five billion years old,  our galaxy is about 20 billions years old. In that time, some scientists think it is likely that civilizations are much more advanced than ours. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.

    Do you like air travel with a service dog? Air travel makes some people very nervous. The crowds, the noise and flying itself can cause unease. But there are classes people can take to help them defeat their fear of flying. And, let me introduce similar training for service dogs that suffer the same problem

Service dogs almost never leave the side of the people they care for. You will see them working on buses, trains and other public transport systems. But the busy environment found at an airport can trouble even the best trained working dog.

    People with disabilities depend on their dogs. They want the animals to safely guide them through security areas. They also need the dogs to remain calm on duty on the plane, even when the flying is not smooth. This takes special training. The Air Hollywood K9 Flight School is one place where such help can be found.

    The school has a piece of equipment that provides the sights, sounds and even the feel of an airplane in flight. It is called a flight simulator, which was built for filming airplane scenes in movies.

    Sandy Alexander has a disability that requires his two-year-old dog, Doc, to be always at his side. Mr. Alexander took the dog to the flight school to get him ready for plane trips. He says Doc did not like the bumpy part of the flight simulation( 模拟).

    Dog trainer Mary Segall is with Canine Companions for Independence. It provides dogs for people with disabilities. Ms Segall says successful training is based on a simple rule: preparation.

    " Dogs need to be exposed gradually and repetitively to stimulation, to the environment, to loud noises, to sounds and to other dogs so that when this experience happens to them on a daily basis, they are  able to act in a way that they're used to acting and that they don't get excitable."

    Dog owners who attended the training at Air Hollywood K9 Flight School say they now feel much more at ease about future flight. Their dogs also seem ready for take-off.

    When I was a little girl, I remember that when my dad was repairing something, he would ask me to hold the hammer, so we would have time for a conversation with each other. I never saw my dad drinking or taking a night out. All he did after work was taking care of his family.

    I grew up and left home for college and since then, my dad had been calling me every Sunday morning. And when I bought a house several years later, my dad painted it by himself in the fierce summer heat. All he asked was to talk to him, but I was too busy in those days.

    Four years ago, my dad visited me. He spent many hours putting together a swing for my daughter. He asked me to have a talk with him, but I had to prepare for a trip that weekend.

    One Sunday morning we had a telephone talk as usual. I noticed that my dad had forgotten some things that we discussed lately. I was in a hurry, so our conversation was short. Several hours later that day I received a call. My father was in the hospital. Immediately I bought a plane ticket and on my way I was thinking about all the occasions I missed to have a talk with my dad. By the time I arrived at the hospital, my father had passed away. Now it was he who did not have time for a conversation with me. I realized how little I knew about my dad, his deepest thoughts and his dreams.

    After his death I learned much more about him and even more about myself. All he ever wanted was my time. And now he has all my attention every single day.

    Last year, I worked in a middle school near my mother's house, and I stayed with her for a month. During that time, I helped her do some housework and buy some food.

    After the first week, I noticed that the food was eaten up very quickly. Then I began keeping an eye on my mum. To my surprise, I found that she would put some of the food into a paper bag and go out with it at about nine every morning. And finally, I decided to follow her. I saw her taking the food to the street children. She would also spend a lot of time talking and playing with them.

One day, I talked to a neighbor and found out that my mum was well-known in the area. The children were very friendly with her and even thought of her as their own mother. Then it hit me —why wouldn't she want to tell me about it? Was she worried that I would stop buying food if I found out?

    When my mum got home, I gave her a big hug. I told her she didn't need to keep it a secret from me. She told me something about the children. Some of them lived with an old lady in a small house. Others slept on the street. For years, she was helping the poor street children by giving them food. After she told me everything, I was so moved by how selfless she was. She helped others in need. As her son, I was so proud of my mum.

    I continued to buy food for my mum after that. But I always added one more bag for her other children.

Most of the 20th century has been a development on the Industrial Revolution taken to an extreme: people now own more products than ever before; there are enough unclear weapons to destroy the earth several times over; there is hardly any forest left and pollution has got to the point where we buy water. Within a few years I predict you will be able to buy air. (There once was a time when you didn't need to buy food or shelter either.)

Important developments in the last century are the breaking down of the class structures left over from the Industrial Revolution stage, bringing with it the empowerment of the "common man": the working day is set by law to only 8 hours a day; everyone has the vote; the media has less obvious government control; people have landed on the moon, sent spacecrafts to Mars and so on. Families have also shrunk drastically (强烈地); the nuclear family came about, and especially in the last half of the 20th century, one­parent families are becoming more common. This shrinking in the size of the family shows the increased independence of people — once upon a time people had to live in large groups to survive.

As humans have "become the gods", they have realized their individuality and independence and taken their control of the world to an extreme. In many countries the land is almost completely used in the production of food and as living space and they live in small cities which are entirely human constructed, made from materials which are also entirely human constructed (concrete bricks) with hardly any remains of nature. Weeds are poisoned because they are messy; even parks have trees grown in tidy lines; grass is mowed to keep it short and so on. I think the massive drug "problem" troubling people is a result of too much of this influence, humans needing to escape the stark world they have created by entering fantasy worlds.

Over the last 100 years, the 20th century consciousness has spread throughout the world; most of Asia has been thoroughly "Westernized", and most of the Third World is being overrun by Western ways of doing things and living.