Different countries have different customs. When you travel to other countries, please follow their customs, just as the saying goes, "_______".

    Very often people who travel to the United States forget to tip. It is usual to tip porters who help carry your bags, taxi drivers and waiters. Waiters expect to get a 15% tip on the cost of your meal. Taxi drivers expect about the same amount.

    In England, make sure to stand in line even if there are only two of you. It's important to respect lines there. It's a good idea to talk about the weather. It's a favourite subject of conversation with the British.

    In Spain, it's a good idea to have a light meal in the afternoon if someone invites you for dinner. People have dinner very late, and restaurants do not generally open until after 9 p.m.

    In Arab countries, men kiss one another on the cheek(脸颊). Your host may welcome you with a kiss on both cheeks. It is polite of you to do the same.

    In Japan, people usually give personal or business cards to each other when they meet for the first time. When a person gives you a card, don't put it into your pocket right away. The person expects you to read it.

    Don't forget to be careful of your body language to express something in conversation. A kind of body language that is acceptable in one culture may be impolite in another.

    Table manners are how to behave when you have a meal. They include how to handle knives, forks and spoons and how to eat in a polite manner. To behave well abroad, you should know some table manners.

    EATING MANNERS

    Japan: It is ＂perfectly＂ okay to slurp when you eat noodles. Unlike making big noises, slurping slightly is not rude. Japanese also say it tastes better if you slurp.

    Russia: Your wrists should be placed on the edge of the table while eating, fork in left hand, and knife in the right. It is not good manners to rest them on your lap. Keep your elbows off the table. Leave some food on your plate to show that the host has give you enough to eat.

    France: Never discuss money or religion over dinner. What is different from the manners in Russia is that finishing everything on your plate is considered good manners.

    Mexico: Whenever you catch the eye of someone who's eating, even a stranger, it's good manners to say ＂provecho＂, which means enjoy. In Mexico, dining is more than a meal. It's a social occasion — lunches are seldom quick and suppers can last for hours. Before you get seated, look for place cards, or wait until the host seats you. And you must say ＂enjoy your meal＂ before you leave the table.

    DRINKING MANNERS

    America: If you empty a bottle into someone's glass, it obliges that person to buy the next bottle. It's polite to put the last drops into your own glass.

    Australia: In a pub it's usual to buy a round of drinks for everyone in your group. When it's your turn, say ＂It's my round＂. When it's their round, they will buy it for you. Don't leave before you've bought a round.

    Japan: Don't fill your own glass of alcohol. Instead, you should pour for others and wait for them to do it for you.

    Paper is one of the most important products ever invented by man.

    The invention of paper meant that more people could be educated because more books could be printed. Paper provides an important way to communicate with knowledge.

    Paper was first made in China about 2,000 years ago. In Egypt and the West, paper was not very commonly used before the year 1400. Paper was not made in southern Europe until about the year 1100. After that, the forestry countries like Canada, Sweden, Norway, Finland, and the United States became the most important in paper-making. Today Finland makes the best paper in the world. And it has the biggest paper industry in the world.

    When we think of paper, we think of newspapers, books, letters, envelopes, and writing paper. So paper plays an important role in our lives.

    Paper is very good for keeping you warm. Houses are often insulated(隔热) with paper. You have perhaps seen homeless men sleep on a large number of newspapers. They are insulating themselves from the cold. In Finland, in winter itis sometimes 4:0 degrees below zero. The farmer swear paper boots in the snow: Nothing could be warmer.

    All through the winter, the Esquimaux（爱斯摩）live in houses made of snow. These small houses are very clean and white when they are new. They can soon turn dirty, but pieces of fresh snow make them new again.

    Sometimes the Esquimaux build their small houses with the wood that they find along the seaside. However, they aren't always so lucky. When they can't get wood, they use the snow. It is so cold that the snow becomes very hard, so the small houses are strong enough in the whole winter. The windows of these houses are not made of glass, but of ice.

When the warm weather comes, the houses become water slowly. The Esquimaux get wet as they lie in bed, and often catch a cold. They are glad to get away from the small snow houses and live in their tents during the summer.