What isthe hardest sport in the world? Some people say it's boxing (拳击), because boxing is dangerousand boxers have to be strong and fast. Other people say the hardest sport issoccer.

    However,most people say the hardest sport is the triathlon (三项全能运动). A triathlon is a race thatincludes three sports. First, racers swim. After that they ride bicycles andfinally they run. In the most common triathlon, racers swim 1.5kilometres, bike40 kilometres, and run 10 kilometres. The winner is the person who finishes therace first.

    There isanother kind of triathlon too. It is called the "Ironman Triathlon (铁人三项)". This triathlon is muchlonger. People who finish this triathlon are called "ironmen" or"ironwomen". This is because these people are so strong that theirbodies are just like iron (铁).

    In thepast, there were other races including three sports. However, they didn't usethe word "triathlon". That word was first used to describe a race inCalifornia in 1974.

    Triathlonracers have to train very hard for their races. Many of them swim and run. Alot of people also do things like yoga (瑜伽). They have many different ways to prepare, but they all have thesame goal. They want to be in perfect shape.

    To be anironman or an ironwoman, you have to be strong and smart. You should know howto save energy during the race.

Are you free on the weekend? Why not go to the cinema and watch the movie Big Hero 6? I'm sure you will love Baymax. 

Baymax is a white robot. He is tall and big. His two small eyes make him look so cute. Baymax is a friendly robot. He is kind to everyone. When you see his sweet smile（微笑）, you will feel warm and happy. 

Baymax is also a medical robot. He can help people with all health problems. If people don't feel well, they can go and see them. He will help them and make them feel better. 

Baymax is a great robot, too. When he puts on the red clothes, he can fly high and fight. 

The story of the fall of Troy is one of the oldest stories in history. It dates back to around 800 BC, to a poem written by a man called Homer. The poem is called The Iliad(《伊利亚 待》). Ilium is the Latin name for Troy.

The story is a myth(神话), but many believe the city of Troy actually existed. Some people have thought it was in modern Turkey. Others have suggested it may have been in central Europe, northern Europe or even England.

You could write a long book on all the paintings, music and stories about Achilles. His name is used for many things. Since 1744, nine British warships have been named after him, for example.

A Trojan horse is a saying that now means something that seems friendly, but it is actually a trick to hurt you. Some kinds of computer viruses (病毒) re now called Trojans. An Achilles heel (脚后跟) means a person' s main weakness. The Achilles tendon(跟腱) is a medical name for part of your heel at the back.

A young man worked very hard at his lessons. He was too busy to have a rest. At last, he became ill, so he couldn't go to sleep. Every night, when he went to bed, he closed his eyes and tried to sleep. But he always stayed awake and couldn't fall asleep.

After some days, he decided to see a doctor. "I just can't go to sleep at night. What should I do? Could you please help me?"

"I have a suggestion (建议)" said the doctor. "Try counting numbers (数数). By the time you reach one thousand, you'll be asleep. I'm sure of it."

The next day the man returned to the doctor's office. "Well," said the doctor, "how are you today? Did you try my suggestion?"

The man still looked tired. "Yes," he said, "I tried counting one, two, three—up to one thousand. But when I reached five hundred and sixty-nine, I began to feel sleepy. I had to get up and drink some tea so that I could go on counting up to one thousand. But then I still couldn't fall asleep."