I'm David．When I was 13．my parents decided that I should go to England to improve my English．I had never been to other countries before．so I felt a little worried．My parents prepared everything for my journey．My plane was due(预期的)to leave at 9：30 am and arrive in two hours．I phoned the English family who I would stay with and they told met hey would wait for me at the airport．

    Unluckily my plane to London was delayed(延误)．I tried to phone the English family again but I couldn't speak to them because they had already left home for the airport．

    When I arrived in London．it was already 1：30 pm．I went to get my luggage(行李)but I couldn't find it．I became very worried．Luckily,the airport staff(工作人员)was very helpful and efficient ． I didn't wait long—they found it 10 minutes later．

    My English family were still waiting for me!I was so happy!Then my new life in London began．My English family were quite kind．I learned a lot of English because I spent most of the day talking in English．I played computer games with the little boy in my English family．I also taught him how to play chess．Sometimes I told him stories I learned from my family．

    I missed my family during my stay in London,but I also felt sad when my stay there came to an end．My English family held a party for me．I enjoyed it very much．I'll never forget that summer in London!It is one of the most wonderful experiences I've ever had．

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    On a rainy day, about 150 volunteers worked for eight hours to clean up Carson Creek that is near a river. About nine tons of trash was taken out from there.

    “We did a good job,” said Alan Specter, the organizer of the event. “We're planning to come back here one more time, three years from now. Of course, we hope that there won't be so much trash next time.”

    The trash came in all shapes, sizes, and colors: cans, bottles, bicycles, batteries, furniture, clothing, plastic bags, dolls, and even a golf bag with a full set of golf clubs (球棒).

    The dirty and tiring work was done by two volunteering groups — Save the Bay and Watch the Whales. Most of the volunteers came from a local police station and a fire station. And some of them were old people who had already retired (退休).

    That day, it rained a little. All of them wore boots, gloves and raincoats. They did the work along a two-mile river with over 500 big yellow trash bags everywhere.

    No one found anything that cost much. A five-year-old boy found an earring which he thought might be worth a million dollars. He said he'd sell it. Then he'd donate half of the money to Watch the Whales, and use the other half to buy his favorite ice cream every day.

    Many people laughed at the boy's story. However, it was easily found that the environment there did become better.

    Jia Zuosheng, 27, used to work as a security guard (保安) at the library of Tsinghua University. But a few months ago, he became a college student in Lishan College in Shandong and he studies math there now. When hearing this news, many people were surprised. On school opening day, many reporters waited outside the school gate to interview him.

"I was born in a poor village in Shandong Province," said Jia. "Our village has never had a college student. Most boys work in town after growing up. I failed the National College Entrance Exam（高考）twice. Then I went to Beijing to find jobs. In the following years, I went on studying by myself while working."

At the end of 2009, Jia found a job as a security guard at the library of Tsinghua University."I cherished (珍惜) the job very much because it gave me a good chance to read books," Jia said."I usually worked at night so I had plenty of time to study in the daytime." When he had problems that he couldn't work out, Jia asked the students at Tsinghua for help. "My dream is to be a college teacher. So I need further education. That's the reason why I took the National College Entrance Exam again," Jia said. "I wish to educate students with my knowledge and love and help them enjoy true, kind and beautiful things."

Jia's mother said Jia has always been independent（独立的）and knows what he wants. But she has other worries. "It's difficult to find such a good job at present as a library guard in Tsinghua University. I'm not sure if this is a right decision." "I will never regret(后悔），"said Jia. "Everyone will have a new start. It's the end, and the beginning."

D

    Lisa likes going shopping very much. She often goes to clothes stores with her classmates on weekends. One day she sees a colorful sweater in the Fashion Clothes Store. It's a red-blue-yellow sweater. There is a card on it. It says 80 yuan. Lisa goes home quickly and collects(搜集) all her money. But she feels sad. She's only got 65 yuan.

    After two weeks, the Fashion Clothes Store has sweaters at very good prices——only 80%. Lisa thinks she can buy the sweater with 64 yuan. When she sees the card, it says 100 yuan.

    Some weeks later, the store says their sweaters are on sale. You can only pay(支付) 50% for the sweater. Lisa thinks she can get the sweater this time, because it only costs 40 yuan. But when she sees the card, she is very angry. It is 160 yuan.

    Chopsticks were invented in China. There are many stories about who may have invented them. One of them is about Dayu.

    Dayu was an ancient Chinese leader who helped his people fight floods. He was always busy and often ate in the wild. He used a pot to boil (煮沸)water and cook animal meat. Most of the time, he was in a hurry and didn't want to wait to eat. But the meat was too hot to pick up with his hands. In those days, people ate only with their hands.

    So Dayu picked up some twigs (树枝)to help him hold the meat. The twigs later became the chopsticks we know today.

    But of course, this is just one story. The earliest chopsticks we have found so far are more than 3,000 years old, dating back to the Shang Dynasty (朝代).The six bronze chopsticks were found in the Ruins of Yin (殷墟)in Anyang, Henan.

    At first, chopsticks were just used as cooking tools. It was only after some time that people started to use chopsticks to eat.