Birthdays are celebrated（庆祝）all over the world. Some ways to celebrate birthdays are rather similar from county to country: candles, cakes, and birthday wishes. But there are also different ways to celebrate birthdays. Here are a few:

阅读下列材料，从每题所给的四个选项（A、B、C、D）中，选出最佳选项。

Language changes all the time. New words and phrases appear and develop. The words and pronunciations used by young people in the UK can be very different to those used by adults. Living in a multicultural (多元文化的) society has an effect on language, especially on young people, whose friends are often from a mix of backgrounds. TV and music also have big influence on the language of the young. Often UK singers sing in American accents (口音) without realizing.

Young British people use lots of language that you usually can't find in most dictionaries. These informal words and expressions are known as ‘slang'. It is not possible to make a complete list of modern British slang. By the time the list was finished, it would be out of date! New words come and go like fashions. However, here are a few examples:

Ø Safe, sorted, sound, cool or wicked all mean "That's good" or "I understand".

Ø  Instead of using different tag questions like … isn't it? can't you? or don't they?,     people use innit.

Ø  Instead of saying very, really or completely, people use well.

Ø  Whatever means I don't care.

Ø ‘He's fine' or ‘He's fit' both mean ‘He's good-looking'. Fine and fit can describe a boy or a girl.

Not everybody uses slang and not everybody likes it. A school in Sheffield, in the north of England, recently stopped its pupils using slang words such as hiya (hello), cheers and ta (both mean thank you). The head teacher says that if young people learn to speak ‘correctly' this will help them get a place at university and a good job.

When British people use language like this, it's no surprise that some students say they can't understand native (本土的) speakers. But perhaps learners don't need to worry about communicating with native speakers so much. Research shows that most of the English spoken in the world today is spoken between non-native speakers of the language. In fact, when we think about "International English", there is no such thing as a native or non-native speaker.

    People in different countries have different ways of doing things. Something that is polite in one country may be quite impolite in another. In Britain, you mustn't lift your bowl to your mouth when you are having some liquid (液体) food. But it's different in China. And in Japan you even needn't worry about making noises when you have it. It shows that you are enjoying it. But it is regarded as bad manners in Britain. If you are a visitor in Mongolia, what manners do they wish you to have? They wish you to give a loud "burp" (打嗝) after you finish eating. Burping shows that you like the food.

    In Britain, you should try not to put your hands on the table when you're having a meal. In Mexico, however, guests are expected to keep their hands on the table during a meal. But in Arab countries you must be very careful with your hands. You mustn't eat with your left hand. Arabs consider it very bad manners to eat with left hands. So, what should you do if you are on a visit in another country? Well, just do in Rome as the Romans do. You can ask the native (本土的) people to help you or just watch carefully and follow them.