“ Ask not what your country can do for you--ask what you can do for your country.” It's a famous quote from US president John F, Kennedy's inaugural(就职) speech in 1961.

    Mark Zuckerberg, the founder of the social networking site Facebook, must agree with Kennedy. The 33-year-old American donated $100 million to the public schools in New Jersey, US.

    Who is this young billionaire? How did he make his fortune?

    Thirteen years ago, Zuckerber was a computer geek(怪才) at Harvard University. As a second-year student, he set up a website to put the “face books” --photos of incoming first-year students online. The website, where people were able to share personal information, was a success at once.

    Zuckerberg first opened Facebook to high school students and then to everyone. Greeting such as “Have you checked your Facebook page today?” and “Do your ‘friends' know what you ate for breakfast?” became a part of American life. Now Facebook is the most popular site in the world with 1.7 billion users.” I could have never imagined all of the ways people would use Facebook when we were getting started thirteen years ago,” Zuckerberg wrote in a recent blog.

    Zuckerberg's dream is to make the Internet a more connected place. The mission(任务)could become profitable for Facebook. The more people share information about themselves online, the more money Facebook will make selting advertising. Zuckerberg is already worth $34 billion, according to Forbes.

    Yet the billionaire keeps his own life out of the public eye. At the company, it is said that he sits among a sea of desks like hundreds of workers. A visitor to Facebook might not even spot Zuckerberg in T-shirt and jeans. He usually takes one two-week vacation each year with his wife Priscilla Chan, a Chinese American. On the weekends, it is reported that he roasts pig and goat in his backyard for friends and takes Chinese lessons.

    The Social Network, a movie based on Zuckerberg's story, came out in 2010. It became one of the most popular films of that year.

    Teenager Jake Deham was skiing(滑雪) with his family in the USA when he fell over and lost one of his skis. His family didn't know that he had a problem. They kept on skiing. When they got to the foot of the mountain, there was no sign of Jake.

    Jake couldn't find his ski anywhere. In the end, he decided to take off his other ski and walk down the mountain. But he couldn't work out the right way to go.

    It was now getting dark and he was a long way from any place of safety. He knew that he might die that night in the cold temperatures. But Jake kept calm(镇定). At home, Jake watched a lot of programs about living in difficult situations. He remembered the advice from these programs and knew that he should build a hole in the snow. He made a hole and pointed it up the hill so the wind couldn't blow into it. Outside his hole, the temperature fell to a dangerous﹣15℃that night, but inside it Jake was safe from the cold.

    But he had to get down the mountain. The TV programs always said, "If you are lost, you should find someone else's tracks(足迹) through the snow and follow them." "I wanted to live my life." remembers Jake. "So I got up and I found some ski tracks and I followed those." He walked and walked and finally he saw lights. Nine hours after he lost his ski, he found a team of worker who came to save him. He was safe!

    His mum was very happy when she heard the news. Amazingly, Jake didn't even have to go to hospital. He got through the terrible experience without any injuries.

    So, the next time someone says that watching TV is a waste of time, think of Jake. Sometimes TV can save your life!

注意事项：

1.必须包含所有提示信息，可适当发挥；

2.表达通顺，书写规范；

3.不少于50词，开头已给出，不计入总词数；

4.文中不得不出现真实的人名和校名。

Hello, I'm Li Hua.