A 15-year-old student who invented a flashlight(手电筒) getting power from the holder's body heat is going home today from California with a big prize and a chance to do further research.

    Ann Makosinski was the only Canadian among the four winners at Google's international science competition. Thousands of young scientists from around the world took part in the competition.

    Winning the science and technology competition was "a surprise". Ann said, "I think it will have a great influence on my future."

    Ann thanked her family for encouraging her interest in science and said that her first toy was a box of transistors(晶体管).

    Ann's prize includes $ 25,000 and a "once in a-lifetime expericnce" from Google for her Hollow Flashlight, which has no moving parts or batteries.

    The idea for the invention came from seeing unwanted batteries and her friend's experience. When Ann visited a friend in the Philippines, she saw the friend couldn't study when it became dark because there was no electricity or light. She saw the need for a flashlight that has no batteries - Hollow Flashlight.

    In her project, Ann wrote "I made two flashlights that do not use any batteries or harmful materials. They do not create any noise and will always work. The flashlight needs at least a 5℃ temperature difference between the holder's body and the environment around to produce light."

    A video of Ann explaining how she creatcd the flashlight has been watched more than 1.4 million times on the Internet.

    Though Ann was successful, she has not made a decision about her career path. Ann hopes that she can find a way to join her love of film and science together.

    The four winners were chosen from 15 final competitors from eight countries. The competition attracted thousands of students in 120 countries.

    In about 1503, during Christopher Columbus's fourth and final trip to America, his ship was seriously damaged in a storm. Columbus and his men had to live on a small island for several months while they tried to repair their ship and return to Spain.

    At first, the local people on the island were very kind to the European visitors, giving them all the food and clothes they needed to survive. However, as the months passed, the local people became more and more unhappy with their guests, who were tricking and stealing from them. Finally the locals decided to stop helping. Without food or any way to leave the island, Columbus's group was soon in serious trouble.

    Luckily for Columbus, he had a book about the stars and planets on his ship. It described the movements of all the objects in the night sky. The book, written by a well-known German scientist, said there would be a total lunar eclipse(月食)and how long it would last.

    Columbus worked out the difference in time between Germany and North America. He then had a meeting with the local leaders just before the eclipse would take place. In this meeting, Columbus told them his god was angry because the local people were no longer giving food. So his god would take away the Moon to punish them. At the moment Columbus finished talking, just as he had planned, the Moon began disappearing.

    The local leaders grew frightened and quickly agreed to provide Columbus with food and anything else he wanted. But first, Columbus's god had to return the Moon. Columbus told them he would have to discuss the idea with his god on his ship. Knowing the Moon would stay completely hidden for about 48 minutes, Columbus returned just before the Moon began to reappear. From that day on, until they finally left, Columbus and his men no longer had any trouble getting the food they needed.

I have trouble learning English grammar. Yesterday when my friend told me there would be a lecture on English learning this afternoon, I couldn't wait to go. Professor Chen was i{#blank#}1{#/blank#} to give us students the lecture. It was held in our school hall. I set off early to a{#blank#}2{#/blank#} being late. After arriving there, I found a s{#blank#}3{#/blank#} and sat down. In the lecture, Professor Chen s{#blank#}4{#/blank#} his learning experience with us. In addition, he introduced some methods of learning English. I learnt a great deal from this lecture . I am c{#blank#}5{#/blank#} that if I learn English grammar with his methods, my English will be better and better.

Last week，our school had a science festival. Our team worked hard and made a paper car together. It was only made of corrugated cardboard（瓦楞纸板），{#blank#}1{#/blank#} it could hold a person. 

At{#blank#}2{#/blank#} ，we thought it was easy to make a paper car. But later，we found it was difficult. It seemed{#blank#}3{#/blank#} for us to make a cardboard car successfully. Then our physics（物理）teacher showed{#blank#}4{#/blank#} a video. Finally，we came up with an{#blank#}5{#/blank#} to make the car. 

Because we didn't have much time，we had to finish it as quickly as possible. We talked about how to make the car and tested（测试）it. I was{#blank#}6{#/blank#} that we worked with each other very well. Everyone saw the work as an enjoyable way to relax. When we finally finished the car，we all smiled. We spent two hours{#blank#}7{#/blank#} on it，from 9：00 to 11：00. We were happy because{#blank#}8{#/blank#} our great work. And we took some photos in the science festival. 

Although we didn't{#blank#}9{#/blank#} any prizes，we learned more about science. We also learned something meaningful about teamwork. {#blank#}10{#/blank#}a wonderful day!