So, let's imagine you are walking down the street drinking a box of tea. You finish drinking the tea. Now, what do you do with the box? Do you drop it on the ground? Or, do you do the right thing and drop it in a trash can? Hopefully, you drop it in the trash can because, besides harming the environment, littering is also very impolite.

    Recently, a magazine published a list of the most polite cities in the world. They looked three things: did people litter, did shop clerks say thank you and did people hold the door open for the person behind them? The top three politest cities were New York, USA, Zurich, Switzerland, and Toronto, Canada. Hong Kong, China was number 35. Shanghai wasn't even on the list.

    Does that mean that Shanghai is not apolite city? Well, maybe. There are different ways to judge(判断) politeness but the survey was looking at how a visitor to a city would feel when walking around its public places. Visitors don't like to step over empty tea boxes as they walk down the street. They don't like it when they buy something and the shop clerk doesn't say thank you or even give them a smile. They also don't like it when someone lets a door slam(砰然关上) into them instead of holding it open.

    Shanghai is a nice city but it is not always the most polite city. I don't think this is intentional(有意的). I think it's just a lack of awareness(缺乏意识). China is becoming a popular place for tourists to visit. When they come to Shanghai they will find a friendly city: it would be nice if they also found apolite one. And, remember, being polite makes you feel good, too. It's nice to be nice.

    Heritage (遗产) is traditional customs, history and beliefs. We use the word “heritage” in many different ways. People talk about their family heritage, city heritage and national heritage.

    Today, heritage is changing. The Internet connects people around the world. In many ways this is a good thing, because we can learn about the heritage of other countries, and we can show our own heritage to the world. However, some people worry that traditional heritage is disappearing. In many ways, countries are becoming more and more alike(相似的).In most countries around the world, you can find KFC. Nike shoes, Starbucks coffee. American movies and so on. Some people think this is a good change, and others don't like it. You can decide whether or not it's a good thing.

    However, everyone wants to protect traditional heritage, and sometimes this is hard. For example, when a new KFC opens in your city, a traditional restaurant might have to close.

    That is why heritage protection is so important. Heritage protection is a simple thought. It means keeping your country's or your city's heritage alive. People do this in many ways. The biggest part of heritage protection is probably preserving (保护)old buildings. Some suggestions of heritage protection are making sure your kids speak your traditional language, and teaching knowledge about heritage to them.

    The world is changing. No matter how it changes, never forget the heritage of our parents and grandparents.

请根据短文内容，选择最佳选项。

    Oxford is a city in the UK. It's in the west of the UK and it's famous for the University of Oxford. It's an old university--about 900 years old. It has a longer history than Cambridge University. It's the oldest university in the English speaking world.

    There are about 21,000 students and they are from all over the world. Many students go to school by bike. There are 38 colleges in the University of Oxford, but Cambridge University has only 31 colleges. There are 104 libraries in the University of Oxford. Bodleian Library is the second largest library in the UK. Stephen Hawking was a student of the University of Oxford. He's a great scientist. Clinton, the 42nd American President, was also a student of the university.

    When you are in England, you must be very careful in the streets because the traffic drives on the left（左边）.

    In China, before you cross a street, you must look to the left first and then the right. If the traffic lights are green, the traffic can go. People on foot mustn't cross.

In the morning and in the evening when people go to or come from work, the streets are very busy. Traffic is the most dangerous then.

    When you go by bus in England, you have to be careful, too. Always remember the traffic moves on the left. So you must be careful. Have a look first or you will go the wrong way.

    In many English cities, there are big buses with two floors. You can sit on the second floor. From there you can see the city very well. It's very interesting!

    A lovely rabbit, a cute hamster, some colourful fish, a strange-looking turtle or a snake...What kind of pet would you like? Lots of kids love animals and dream of having a pet.

    But not every family can have a pet. So, in many Western countries such as America, Britain and Australia, primary and middle school classes have their own pets. Looking after a pet is not as easy as you may think! Fish and turtles need clean water and the right food. Hamsters and rabbits need fresh vegetables and a warm place to sleep. Even little mice need good care! What would you feed a pet mouse? How about snakes?

    Class pets teach kids about nature and being responsible. Sometimes the pets have babies. It's very exciting but it also means having more animals to take care of!

    Students take turns to take care of their class pets. Every week the pets have a new “mum and dad” to look after them.

    You may want to know what happens to the class pets during school holidays. At the end of term, the teacher chooses a responsible student. This lucky student keeps the pets at his or her home for the holidays.

    Notes:

1) hamster n. 仓鼠   2) turtle n. 乌龟   3) responsible adj. 负责任的   4) choose v. 选择