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.

When you go to an American's house for dinner, there are some table manners you should know.

    ① Don't talk too loudly at the table.

    ② Never talk on the phone at table.

    ③Eat soup quietly and with the side of the spoon.

    ④Break your bread: don't cut it.

    ⑤Don't eat food with your fingers unless(除非)it is finger food like bread, pizza, etc.

    ⑥Don't play with food or table utensils（用具）.

    ⑦Don't put your elbows（肘部）on the table.

    ⑧Keep the napkin（餐巾）on the lap（膝盖）.

    ⑨Never ask a doggy bag（打包食物）when having a formal（正式的）dinner.

    ⑩It's OK not to finish all the food on your plate.

    Follow the rules and you will have a great time enjoying your dinner.

    The history of Chinese cartoon making began in the 20th century. Below are some great cartoon works in Chinese history.

    Princess Iron Fan, is the first Chinese cartoon. It was directed in Shanghai by the Wan Brothers in 1942. It is the second longest cartoon film in the world following the cartoon the White Princess. The story was taken from a popular ancient Chinese story.

    Crow Black-Coated is the first Chinese cartoon in colour. Shanghai Film Studio made it in 1955. The story is about a very proud bird. He sang and danced in the forest，showing off his beautiful tail to everyone. Autumn came and the other animals were busy preparing food for the winter. The bird continued to enjoy life freely. The winter came with a heavy snow storm. The bird was homeless in the cold. To warm up，he found a wild fire in the forest. The bird burned his tail and lost his singing voice by accident. From then on，the bird becomes a black crow.

    Where's Mama is a short Chinese cartoon. Shanghai Film Studio made it in 1960. It tells about the adventures of a group of tadpoles in search of their mother. It is the first Chinese-style cartoon different from Western cartoons.