Lots of students know what a marathon (马拉松赛跑) is, but perhaps they don't know what a triathlon is. The triathlon is a sport that has three parts-swimming, bicycling and running. It is not an easy sport, but a man named Joe Salter is very good at it. A few months ago, he finished a special triathlon—he juggled (抛起接住) three balls all the time during the triathlon. That is to say, he kept on throwing and catching three balls while he was swimming, riding a bicycle and running.

    31-year-old Joe is from Florida, the USA. He loves juggling and he started at the age of 8. Joe did well in juggling.  Later, he got the idea to do a triathlon and juggle at the same time to make it more fun. Many juggling fans laughed at his idea and thought it was just a joke. But Joe didn't give up and he kept practising it. Because of his hard work, he made it at last.

    Talking about his triathlon, Joe said swimming was the hardest part. "It was difficult and complex(复杂的)," he said. "I basically only used my legs, so it took quite a lot of work. Also, swimming in open water made it a little harder. It was not like in a pool."

    British roads are the safest in the world in 2010, only 3.8 people out of 100, 000 died in road accidents. This number is less than in any other country. If you go there, you should try to driving the same way British people do. This is some advice for visitors who plan to go driving in the UK.

    Drive on the left side of the road. In most countries, people drive on the right side. Many visitors have problems because they forget about this difference.

    If there is a line of cars, don't try to go past other people to get to the called jumping the line. If you do this, other people will get angry with you.

    Stop at traffic lights(交通灯). In the UK, drivers always red, even if there aren't any cars or people around.

    Don't use your horn(喇叭) too much. If you do, people will think you are not polite, If another driver flashes(闪光)their lights at you, then they are probably trying to tell you that they will wait for you to go first.

    If you have an accident. then don't try to bribe(贿赂) the police! If you do, you might finish your visit in prison(监狱).

    American schools begin(开始) in September after a long summer holiday. There are two terms(学期) in a school year. The first term is from September to January, and the second term is from February to June. Most American children begin to go to school when they are five years old. Most children are seventeen or eighteen years old when they finish school.

    High school students take only five or six subjects each term. They usually go to the same class every day, and they have homework for every class. After class, they do interesting things.

    After high school, many students go to colleges (学院). They usually have to pay a lot of money. So many college students work after class to   ▲   .