Someday in the future we may not need to have money in our pockets. Is life easier when people don’t need to carry any money at all? Is money heavy to carry? Is it safe to carry money? Maybe in the future each of us will have only one small credit card（信用卡）. We will use it instead of money to buy all the things.

Of course we may still have some of the same problems with cards we now have with money. For example, we lose money from time to time. Maybe we will lose the cards. Maybe someone will take the cards. Someone may even make a card that looks like our cards. Since we can’t buy anything without our cards, the credit cards may be no better than money.

Is there something easier to use than credit cards? Each of us has a thumbprint（拇指指纹）. No two thumbprints are the same. Maybe someday the government will keep people’s thumbprints with a number. When you want to buy something, you will put your thumb on a machine or a computer. Each store or business will posses one. Everyone’s thumbprints will be in the computer. It will be difficult to lose our thumbprints! It will be difficult for someone to steal it or to make one like it.

Dubai is a city of big business, expensive hotels, skyscrapers（摩天楼）, and shopping malls．In the early 20th century, Dubai was a successful trading port．People from the world stopped in Dubai to do business．But it was still a small city, and most people lived as fishermen and businessmen．Then in 1966, oil was discovered．This brought a lot of money into the area, and soon Dubai began to change．

  Today Dubai is one of the world’s most important business centers．In fact, each year the city gets its money mainly from business, not oil．

  Recently Dubai has attracted more and more visitors from abroad．They come to relax on its beaches, and every year, millions visit just to go shopping!

  Dubai is also one of the world’s fastest growing cities．Many tall buildings are built in months．The city also has many man-made islands．One of these, the Palm Jumeirah, is like a palm tree（棕桐树） and is very beautiful．

  The city is still an amazing mix of people from different countries．The people from 150 countries live and work in Dubai, and foreigners nowoutnumberDubai natives（本地人） by eight to one!

  Many people welcome the city’s growth．But an increasing number of Dubai natives worry about the speed of change．As a Dubai native says, “We must always remember where we came from．Our kids must know we worked very, very hard to get where we are now, and there’s a lot more work to do．”

China is a great country with the largest population in the world. In order to solve the population problem, our government carried out one-child policy（独生子女政策）before. When it is carried out for some time, many people not only see its advantages but also disadvantages.

From 2016, two-child policy is put into effect. In my opinion, two-child policy is good. First of all, two-child policy is the gift for some only child. For some families, maybe the parents are only child and they also can have only child. Besides the loneliness of their child, when their child grows up and they grow older, their child marry an only child girl, the burden（负担）on their child and his wife is too heavy. Their child and his wife have to take care of two couples. Usually, a young couple looking after an old couple is a little difficult. But if their parents have two children, they can share the burden（负担） of taking care of their parents. It would be much better. Secondly, two-child policy can guarantee（保证） the number of Chinese population.

All in all, one-child policy has been out of date. And two-child policy is needed and necessary. It can solve the problems of nowadays（现在）and the future.

Some people have to use public transport, some dislike it and still some love it. If everyone has a car and drives anywhere they want to go, there will be serious traffic problems on the road. Luckily, trains are a good form of public transport.

British people use trains a lot. This is especially so for people who are travelling from London to Paris. Every day about 20 trains leave London. They travel at a very high speed and people feel glad that the trains take only 2 hours and 30 minutes to reach Paris. It's much faster to travel by train than by bus or by car. This is because people have to drive cars or buses very carefully and lowly for many reasons, such as speed limits and trafficjams. However, when you are travelling by train, the speed is almost the same and there is no traffic jam for a train.

Besides, Londoners think taking a train is one of the safest ways of travelling on the ground. Trains take quite a number of quality tests while they are made. More importantly, they have to take many safety checks before they are used on the rail track.

What's more, trains in Britain are comfortable and provide fine services for their users. When you are on a London train, you will find that the train has comfortable tables and seats where people can sit. They also provide food services and power plugs(电源插头) for personal computers or mobile phone.

Edinburgh, the capital of Scotland, is a fantastic city for tourists. During the month of August, the number of tourists always increases quickly. They come to enjoy the Edinburgh Festival.

The Edinburgh Festival is an amazing time to visit the city. For around four weeks, the city has lots of arts and cultural festivals. Artists and performers come to show their talents (才能). There are shows for children, young people, and adults. There are shows for people of all tastes: dance shows, music concerts, photography and art exhibitions (展览), plays and more.

Whatever you like, you can find something to see. And at whatever time of day, you can watch what you want: the first shows start at 9 am, and the last finish at around 2 am. Some shows at the festival can be a little expensive but many are very cheap, and lots are completely free.

For those who cannot decide what to see, there are lots of shows on the Royal Mile. It's Edinburgh's main street for tourists. There are always singers, actors and musicians offering free shows to the crowds.

Thousands of tourists from all over the world go to the Edinburgh Festival. The festival also attracts many performers. So you can meet many interesting people. For many performers, the Edinburgh Festival can be the start of their career ( 职业生涯). For example, actor Rowan Atkinson (most well-known for playing Mr Bean) began his career at the Edinburgh Festival.

Edinburgh is a fantastic and fun city to visit all year round. However, if you plan to visit it, the city is at its best in August.

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