At 18, many American young people go off on their own. They go away to college or find full-time jobs, and they often pay for their own apartments. Some get married and start families. This independence（独立) is learned from childhood.
     From an early age, American children learn to do things by themselves. Children as young as 2 begin to put away their toys and dress themselves. At 3, many children do simple chores like setting the table.
     Using money in the right way is also taught early. As soon as a child understands the value of money, he or she receives a weekly allowance. This is used for things the child wants, like toys or treats. The child can spend or save it, usually with little help or advice from parents. If the child wants more money, it must be earned by doing extra chores.
     Children are taught early in life to think for themselves. They are allowed to make some decisions and make mistakes. Failure often teaches more than success.

It's the end of class. When the bell rings, students of Luohu Foreign Languages School in Shenzhen quickly take out their cell phones. They want to log on to their micro blogs to check the interesting things that have happened in the last hour.
　　Since last year, the trend of micro blogging has swept the country. Recent surveys shows that most students in middle schools have a micro blog and some even update their blogs over five times per day.
　　"We learn many fresh and interesting things on micro blogs and they have become popular topics in class," said Andy Liang, 14. "If you do not know about them, you are out of the loop."
　　It is also a great place for students to let out stress. "My parents always ask me to study all the time, and encourage me before exams, but it really adds pressure," said Simon Zhang, 15. "When I share these feelings on my micro blog, I get many replies from friends in the same situation, which makes me feel better."
　　But parents are worried that micro blogging could be a waste of time. Some misleading messages may even cause danger to kids, they said.
　　Mr. Shen, a professor at the China Education Association, suggests parents not worry too much as long as kids are not crazy about micro blogging. Maybe it can become a window for parents to understand their children. "If parents can read their children's micro blogs, they'll know their thoughts, thus leading to better communication and solutions to problems," he said. He also gives some tips for kids.
　　—Don't micro blog for more than one hour a day.
　　—Never micro blog in class.
　　—Try to talk face to face with people from time to time.
　　—Be critical. Don't trust all the messages on a micro blog.

    Welcome to Isle Royale National Park! It is a US national park in the state of Michigan.

    Isle Royale is surrounded by the deep blue waters of Lake Superior, the largest freshwater lake on Earth by area. No cars are permitted in Isle Roy ale. There are no real roads on the island. The only way to get to the park is by boat or sea plane. A boat trip to Isle Royale takes three to five hours. Isle Royale is the largest of the islands within the national park. It is over 72 kilometers long.

    The whole national park covers a total area of 2, 320 square kilometers, with 540 square kilometers above water. Isle Royale became a national park in 1940. But once they arrive, most visitors stay a white. The average stay for visitors in Isle Royale National Park is 3.5 days. Isle Royale offers hiking, camping, boating and even scuba diving.

    Visitors to Isle Royale can see a lot of mouse and wolves in winter. The national park is closed from November l through April 15, due to extreme weather conditions. But for the other months of the year, Isle Royale offers green forests and clear blue waters.