Billy Dengler, a 14-year-old boy, is in the eighth grade. When he was born a month later, Billy's mother, Terri, noticed that his eyes weren't quite as big as a normal baby's. She took Billy to the hospital, and the doctor said Billy would never be able to see.

    Although Billy can't see, he has never let that hold him back or make him different. Billy began teaching himself computer programming by using a screen reader when he was just seven years old. He is a certified Google developer (谷歌认证开发者) now. Google even tried to offer him a job last year when he discovered a problem in one of its systems, but Billy wasn't old enough.

    Billy's dream school would be Stanford University or MIT, where he could get a very good education in computer science. After he leaves school, whether he will go to work at a company like Google or design a software company of his own is still to be decided. However, he says he will definitely (绝对地) do something great.

    "It's a sighted world," Billy said. "You can't let anything get in the way of your dreams, and if you do that, you can't move forward and make your dreams come true."

    Dear Adam,

    I'm on vacation in Central America and having a great time. I'm in Guatemala. It's a small country but there is so much to see and do! There are volcanoes (火山), mountains, rainforests, beaches and Mayan temples (玛雅寺庙) in the country.

    The Mayan people have a long and interesting history. They built many temples. Last Friday I visited a Mayan temple at a place called Tikal. The temple has a history of about 1,300 years. It is a wonderful place to visit.

    I am staying at Lake Atitlan now. Some people say it is the most beautiful lake in the world. It is a very big lake and there are mountains and volcanoes around it. You can walk around the lake and even climb to the top of a volcano.

    The volcanoes at Lake Atitlan are not active volcanoes (活火山), but tomorrow I am going to see an active volcano called Pacaya. Active volcanoes can be dangerous because they still erupt (爆发) sometimes. I want to climb Pacaya. It erupted in 2010. I hope it won't erupt when I' m there!

      I'll send (发送,) you another e-mail soon.

                                                      All the best,

                                                       Kate

    This is the story of a little fir(冷杉) tree that dreamed of growing up so that he could be a Christmas tree for humans. The other older trees knew more about life and they told him that being a Christmas tree for humans wasn't as good as he thought. But the little fir tree didn't believe them.

    He was so pleased that day when some children came in with their parents to pick a fir tree as their Christmas tree to decorate the living room. The children adored him at first sight. So he was dug up and brought into the living room. After they finished decorating him, the little fir tree shone with a hundred lights. Christmas was getting closer and everyone admired (欣赏) the little Christmas tree.

    He was the prince of the living room, but he started to lose his leaves after January. Nobody looked at him or touched him. The fir tree started to feel sad that he had been chosen by the family. After several days, the little fir tree was replanted in the family's backyard. He was so happy to be back in the good old earth! In the following years, the family dug him up again to put him back into the living room as their Christmas tree and then replanted him. He was very happy with his new family. And yes, in the end the older trees were wrong. Some humans are good after all.

    Most people always like to collect things. For example, they like collecting stamps, books, pictures.… But my friend Mr King likes collecting clocks. He has five hundred clocks now.

    There are clocks everywhere in his house. You can see shelves standing in every room. All the shelves are full of clocks. Though Mr King is glad to do this, his wife doesn't enjoy it at all. She has a lot of work to do every day. It's not easy for her to clean hundreds of clocks. She is also angry at the noise. Each clock keeps its own time, so she can hear clock strike(敲) almost any time during the day and the night. "There is something even worse. I am never able to know what time it is with so many clocks around."

    The cold wind blew strongly outside. Amaya was warm in her house, thinking about an article she'd read at school. The article was about kids who helped out their communities, and she thought it would be really cool to help her own town, Harvard.

    The only problem was that she wasn't sure how to help. In the article, the kids had grown food for people who needed food, but it was winter. She couldn't start a garden. Amaya was deep in thought when her mom said it was time to go shopping.

    As they drove along the road, Amaya saw a family walking on the sidewalk( 人 行 道 ), wearing only light jackets. How cold they must be! That gave her an idea! She could collect winter coats, hats and gloves for people who needed them.

    She shared her idea with her mom, who thought it was great. But how would they spread the idea to get plenty of winter clothing? Amaya decided to talk to her teacher, because then she could share her idea with her classmates at least.

    Ms. Monroe agreed when Amaya talked about her idea. They decided to call the project Hats in Harvard. Then they wrote a letter explaining the project. Ms. Monroe even said she could help Amaya talk to the headmaster about  it, so they could get the whole school to join in it. They met with the headmaster during lunch time. He was excited about the idea, and said he would make sure copies(复印件) of the letter went home with all the students.

    They collected enough winter clothing in only one week. Then they left the clothes around two parks, so families who needed clothes could get them there. Three days later, Amaya and her mom went shopping again. She saw the same family that had given her the idea for Hats in Harvard. This time, though, the family looked nice and warm in some new coats, hats and gloves. Amaya felt warm in her heart, and was very glad she could help others.