I am Turere. I come from Kitengela, a farming community on the edge(边缘) of Nairobi National Park of Kenya(肯尼亚). Since the age of nine. I have helped to look after my family's cows. As a child, in my free time. I enjoyed playing with electronics. I made my own inventions, such as electronic toys from car parts and other things. I also built other electronic devices(仪器) for my neighbors.

    At the age of 13, I invented something that changed my life. It also changed the lives of many people in my community. One night, a lion from the park came into my family's farm and killed one of our cows. I was angry. However, killing the lion, I thought, was not the best way to solve the problem. Instead, I decided to invent a solution

    The first idea I got was to use fire, because I thought lions were scared of fire. But I came to realize that didn't really help, because it was even helping the lions to see through the cowshed (牛棚). So I didn't give up. I continued.

    And a second idea I got was to use a scarecrow(稻草人). I was trying to trick the lions into thinking) that I was standing near the cowshed. But lions are very clever. They will come the first day and they see the scarecrow, and they go back. But the second day, they'll come and they say, this thing is not moving here, it is always here! So he jumps in and kills the animals.

    So one night, I was walking around the cowshed with a torch(手电筒), and that day the lions didn't come. And I discovered that lions were afraid of a moving light. So I had an idea.

    As a child, Alain Robert was afraid of heights. One day, when he was 12, he returned home from school. He didn't find his keys. It was 3:30pm and his parents worked until 6：00 pm. Alain looked at his apartment on the eighth floor. He saw an open window. He closed his eyes and imagined himself climbing the building. When he opened his eyes, he told himself, "I can do it." Fifteen minutes later, he was in his house and his fear of heights was gone.

    Today, Alain still climbs buildings. In 2003, he climbed a building in London dressed as Spiderman (蜘蛛人) to advertise the movie. In 2004, he climbed Taipei 101 (one of the tallest buildings in the world). To reach the top of a building, Alain uses only his hands and special shoes.

    Alain climbs as a hobby. He also does it to make money for charity (for poor children and the homeless). When he climbs, he wants to send a message to people. If you have a dream, you must be brave and keep trying. If something bad happens, don't give up. Close your eyes and tell yourself, "I can do it."

    Last week, I visited the Badaling Great Wall with my friend Peter.

    We set off early in the morning. We took the subway first and then a bus. Reaching the foot of the Great Wall, Peter was attracted by the landscape at once. "How wonderful it is!" he said repeatedly and pulled me into the cable car (缆车) at once. We got a view of the beautiful scenery.

    After a while, we got to the Great Wall. Peter was very excited. He touched the bricks. I told him when and how we Chinese built the wall.

    He listened with great interest. When we entered a turret (炮塔), Peter was more curious. I told him what the turret was and what it was built for "It was really an amazing achievement (成就)!

    Peter said with admiration (钦佩) and took several photos.

    Then, we reached the Stele (石碑) of brave Man, the symbol (象征) of the great Wall. A lot of visitors gathered (聚集) around it and took photos. I translated the words on the stele for Peter. "Only the one who can reach the great Wall is a brave man." "Rell?" Peter asked joking. We both laughed.

    An American boy has made a cheap machine that can help blind people read.

    The blind can read by using Braille-a system of small bumps (隆起物) that the blind touch to read the letters. The machine that makes these small bumps usually costs at least $2,000. It is called Braille typewriter. The American schoolboy, Shu ham Banerjee, made a new Braille typewriter from a Lego tool that lets people create robots. Banerjee has called his new machine the Braigo-a combination(组合) of the words Braille and Lego. It costs just $350. It works by changing electronic texts into Braille and then printing it using a computer or a mobile machine.

    Banerjee designed (设计) his Braigo for a school science project. Since then, he has caught the interest of Silicon Valley in the USA. The big technology company Intel spent money on Banerjee's machine in November, but they did not say how much money they put in. Banerjee also got $ 35,000 from his father to help him start the project. His father works as a computer engineer (工程师) at Intel. He spoke about why he gave so much money to his son, saying, started to be interested more, thinking that he's on to something and this invention has to continue, dream would probably be having most of the blind people use my Braigo.