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.

    Hello! This is a UFO. And I'm an alien（外星人）. I am Eric. Look! My jacket is nice. It's white. What's this in English? It's a pen. What color is it? It's red. And what's this in English? It's a key. It's a yellow key. What's that? It's an English CD. I like（喜欢）it. This is an English book（书）. It's green. It's 0.5kg in weight（重量）.

    Tom is at school. He is in the classroom, but he can't find his schoolbag. Where is it? Is it lost? Oh, no! It is in his room. He forgets(忘记) to bring it to school. He calls his sister Sally and asks her to bring his school things to school. These are his school things.

    His schoolbag is on the chair. Under the chair is his pencil box. His math book is on the desk. His dictionary is on the bed. His pencils aren't in the pencil box. They're in the drawer.

    Oh, Sally, don't forget to bring his soccer ball. Tom likes playing soccer every day after school. But where is his soccer ball? Oh, it's on the floor, under the bed.

    When our son Bradley was ten, the new bicycle he had received earlier that year was stolen. Owning a bicycle was a big deal to our children when they were little. They spent hours and hours, day after day, on their bicycles, riding up and down the footpath, and at the front of the house. We also rode together as a family a lot. Bicycling was a great way to get the kids out of the house and into the fresh air without spending any money.

    Bradley had discovered that his bicycle had been stolen from our backyard in Campbell town, South Australia, when he and his sister went outside for a morning ride. He couldn't believe that someone would do this.

    He got a large piece of cardboard, painted a sign begging for the bicycle to be returned, and tied the sign to the letterbox. The following morning, when I went out to collect the mail, I found a white envelope with the magical words," Buy yourself a new bicycle". There was a $100 banknote inside.

    We were very touched that someone had the heart to do this. We've never been able to thank the person but we suspect（猜想）that it may have been one of our wonderful neighbors. Bradley painted a big"             !" on the sign and we left it outside for a couple of weeks afterwards, hoping the kind stranger would drive down our street.

    A delighted Bradley was able to buy a new bicycle. As the years went on, the bicycles became bigger and more expensive but remained just as important for those family bicycle rides. Now Bradley is 25. Sometimes I miss the days when receiving a bicycle was the best thing in the world to them.

    All these years later we are still thankful for the stranger's kindness. We were a young family with three little children and it meant a lot to us. We still talk about it and, even now, wonder who the kind stranger was.

    One day, a mouse saw a mousetrap(老鼠夹)in the farmer's house. He said to his friends on the farm, "There is a mousetrap in the house!"

    The chicken said," There is no need for me to worry about it."

    The pig said," It has nothing to do with me!"

    The cow said, "It sounds like you have a problem."

    The mouse was sad, because no one cared about his problem or would help him.

    One night, a snake bit(咬)the farmer's wife. Soon the wife caught a fever. The farmer decided to kill the chicken and made chicken soup for his wife.

    Later, the wife got sicker and her friends came to visit her. The farmer killed the pig to feed them.

    In the end, the farmer's wife died. Many people came to her funeral (葬礼), so the farmer killed the cow to feed all of them.

    Let's remember that when any one is in trouble, we are all at risk(有危险).