Every year, more than nine million people all over the world come to visit London. They go to the museums and theatres; they look at interesting old buildings or have a drink in a park.

    A quick and easy way to get to different places in the city is to take an underground train. The London underground is one of the best and most widely used transport networks（网状组织）in the world. The trains run all day and most of the night. (3)You'd better not take the underground between eight o'clock and ten o'clock in the morning, or four o'clock and six o'clock in the afternoon. (4) The trains are so crowded that you can hardly move or find a place to sit.

    London's famous red buses form a big part of getting around in London. Although the London underground is the fastest and the simplest way of getting around London, the buses play their part and are an experience you should try at least once. By sitting on the top deck (层) of the bus, you can get a great sightseeing (观光的)  experience of London as well.

    Some special visitors' buses take you to many of the interesting places in the city on one journey.  It takes about one and a half hours, but you can cancel your journey and get off (and on again) at the different places you want to visit.

    London taxis are called "black cabs”. Most of them are black, but some are not. You can stop one if it has a "For Hire (供租用的)n sign on it. The drivers are friendly and helpful.

    In a word, London is a big and beautiful city with Lots to see and to do. Welcome to London.

C

Some students have their favorite pop stars or sport stars. They admire them very much. They admire their ability and the way they live their lives. Young people are full of potential ( 潜能) and have lots of questions about their futures: What kind of person will I be? What kind of job can I do? ①Sportsmen and pop stars seem to havealready answered these questions in their own lives. But when you watch these people, you only see a part of their lives, the public part. Their everyday lives might be very d_②______.

Many parents worry that their children will follow the bad side of their idols (偶像). And many young people are often disappointed to discover that their favorite idols ③have feet of clay. But the lucky thing is that they don't have to behave exactly like their idols.

④Celebrities (名人) are fun to watch and admire, but the best idols are often the people you see in your everyday life: your family, your neighbors and your teachers. These are the people who teach you how to be honest and how to get along with others.

    Basketball players are usually very tall. Because they need to put the ball into the basket. Other sports players may be shorter than them.

    Short people often have better balance (平衡) than tall people, so they don't fall over very often. In some sports the players must have good balance, for example, table tennis, they don't need to have long legs to run fast! Some of the fast runners in the world are not very tall. Some people are tall and some are short. The tallest man in the world is 2.41 meters tall. Today young people in many countries grow taller than their parents. This is because they eat better than their parents. Good food can help children grow.

根据短文内容，回答下列问题。

    Xitang is an ancient water town in Jiashan Country, Zhejiang Province. It is close to Shanghai. Since some scenes of the movie Mission: Impossible Ⅲ were filmed there, it has become very popular, both at home and abroad. More and more tourists from Western countries add this town to their "must — see" lists(列表)when they are traveling in Shanghai and Hangzhou.

    Xitang is a quiet town. You will feel very relaxed in this water town, and be surprised by its beauty. Along the river, over 10,000 people live in the old buildings built during the Ming and Qing dynasties, Most of them run gift shops and provide service for tourists here.

    Somethings special inⅪtang

    Ancient Lanes(小巷)

    There are 122 lanes ill Xitang. long and short, wide and narrow(狭窄的). No matter from which point you start, you can find and other place in the town. It's amazing, isn't it？

    Button(纽扣)Museum

    Xitang mikes all kinds of buttons. Button Museum is on the west street in xitang and it has a collection of over 1,000 buttons through the ages.

    Xiyuan Garden

    Xitang Garden is similar to other classic gardens in the south of China. It has trees, flowers, towers, bridges, lakes and waterfalls.

    On 19th September 1783, Pilatre De Rozier, a scientist, sent the first hot air balloon. The passengers were three animals and the balloon stayed in the air for about 15 minutes before hitting back to the ground.

    The first manned(载人的) flight was about 2 months later, with a balloon made by 2 French brothers. The balloon flew for a period of 20 minutes.

    Sailing through the sky in the balloon, high above buildings and trees, you can't feel or hear the wind because you're traveling in the same direction and at the same speed as it is.

    A hot air balloon has three main parts: the balloon, called an envelope; a basket, where passengers ride; and a burner system, which supplies the hot air.

    Most balloon envelopes are made of strong, lightweight nylon(尼龙). They are different in size and shape, but they have to be really, really big to lift even one person. Most weigh more than an adult man.

    The basket is usually made of wicker(柳条), which is strong but not too hard. It needs to bend a bit for a soft landing, just like a good jumper bends her legs instead of keeping them straight when she lands.

    The hot air balloon works on the theory that hot air rises faster than cooler air. When the burner system is turned on, it makes a noisy sound, but once the balloon is flying, the burner can be turned off. The air in the envelope will then cool, and the balloon will slowly go down unless the pilot starts the burner system again.

    To control a hot air balloon, a pilot adds hot air to it to go up or lets the air out to go down until he finds a wind blowing in the direction he wants to fly. But no matter which way the wind blows, the passengers have an amazing bird's-eye view of the world.

    One would think that campers would know not to break the branches off trees for firewood, drive fast around the campground, litter, or leave a fire not looked after, but I've seen people do all of these things. No matter where you put up your tent, here are five things not to do at a campground.

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    What's it like to be near someone who decides to arrive late at night? Last summer, on a rainy night at a state park in Vermont, we heard noises from excited kids and barking dogs very close to our tent after midnight. There is no beautiful way to set up camp in the middle of the night, so please, just don't do it.

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    No one thinks that his dog is annoying, but we all know that some pets are better off left home. The only thing worse than a camper who stands by lazily as his dog barks at passers-by for no reason at all, is that he leaves his dog at his campsite while he goes off for the night.

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    This is the most important and often unnoticed camping manner in the book. Nearly every campground has rules that do not allow noise late at night and early in the morning, but most places also don't have the staff to carry them out.

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    You might accept leaving your bar of soap thinking that someone might have forgotten to bring theirs, but I can assure you that non one wants to use your leftover soap especially if it's hairy, so please take it with you.

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    No matter how good your taste in music is, I'd say most people prefer quiet hours with the nature. The truth is that no one want to hear your music except for yourself. Headphones are a great invention, but since too many campers fail to pack them, don't forget your earlugs.