Many cultures have different ideas about why people catch colds. For example in the United States, some people think that you can catch a cold if your feet get cold. So, mothers tell small children to wear warm boots in the winter. In other places, including parts of the Middle East, some people believe that strong winds cause colds. So, on trains and buses, people usually don't like to sit next to open windows. In parts of Europe, some people think that wearing wet clothes will give you a cold. They say that after you go swimming, you should quickly put on dry clothes. Today, scientists know that colds are caused by a virus（病毒）. But the old ideas are still very strong, and many people still follow them to avoid（避免）getting ill.

In many countries, unusual names for children are becoming more popular, especially when more and more stars give their children special names. In Britain, you can call a child almost anything you like except dirty words.
Some parents choose names which come from popular culture. Because of the film the Lord of the Rings(指环王), six boys were named Gandalf. Names about sport are very common, too. Since 1984, 36 children have been called Arsenal after the football team.
Other parents like to make up names, or combine(合并) two names to make a special one. A mother in Britain invented the name Tiaamii for her daughter. She combined the names Thea and Amy (the two grandmothers).
In China, there are some rules about names ―- you can't use foreign letters or symbols(符号) in a Chinese name. For example, parents are not allowed to name their baby @. In New Zealand, a name beginning with a number is not allowed. Other countries have stricter rules about calling children. For example, Japan, Denmark, Spain, Germany and Argentina have a list of names. Parents must choose the names in the lists for their children.
In Britain, some old-fashioned(过时的) names have become popular again, such as Maisie or Ella for a girl, and Alfie or Noah for a boy. But the most popular names are not the strange ones. The top names are very traditional--Jack and Thomas for boys, or Grace and Jessica f6r girls.

    Different countries and different people have different manners. We must find out their customs so that they will not think us impolite. Here are examples of the things that a person with good education does or does not do.

    If you visit a Chinese family, you should knock at the door first. When the door opens, you will not move before the host says "Come in, please." After you enter the room, you would not sit down until the host asks you to take a seat. When a cup of tea is put on a tea table before you or sent to your hand, you will say "Thank you" and receive it with two hands, not one hand, or they will think you have ill manners. Before entering a house in Japan, it is a good manner to take off your shoes. In European countries, even though shoes sometimes become very dirty, this is not done. In a Malay (马来人的) house, a visitor never finishes the food on the table.

    He leaves a little to show that he has had enough. In England, a visitor always finished a drink or the food to show that he has enjoyed it. This will make the host pleased.

    Disney's princess stories are famous around the world. You must know some of them, such as Snow White, Cinderella and Sleeping Beauty.

    All princesses are very beautiful. Princes fall in love with them at first sight. In the end, the princess and prince have a happy life together.

    However, princesses often cannot protect themselves. They need help from others. This is the old image of Disney's princesses.

    A few weeks ago, Disney made 10 new rules. To be a princess, you must follow these rules. Surprisingly, no rule talks about having a "pretty face". Instead the rules are about good characteristics like honesty, loyalty and never giving up.

    Princesses need to grow up. When they meet problems, they need to protect themselves. They need to find ways to get away from dangerous people.

    For example, Elsa and Anna fight against the bad prince in Frozen. They need to believe in themselves and their friends. Mulan shows her courage to fight in the army. "Beauty" cannot help them. But a strong heart can. In the real world, these are the rules you need to follow.

    In 2014, Buzzfeed, a US news website, did a survey called "which Disney princess do you like most?". As it turned out, the most popular one was Belle ！More than 18 per cent of people chose her. Belie is in the movie Beauty and the Beast. She is very kind and gentle. She takes care of the Beast and uses her clever mind to get out of trouble.