There are many kinds of 1. transportation now. Which one do you like best, by train, by bus or by plane? Now let's look at these three kinds of transportation. 2.The fastest way to travel is by plane. If you want to save time, 3.乘火车是最好的选择. A plane ticket can also be easier to book, and there are 4.(hundred) of planes leaving half an hour to everywhere. But it is much 5.(expensive) than traveling by train or by car. Many people prefer to traveling together by train. Because the train is cheaper than the plane and you can see the beautiful scenery out of the windows. But sometimes people are very noisy on the train. And it's very small and crowded inside the train. Taking a car is great. You can feel freer in your own car and you can move quickly from place to place at any time you like. 6.But sometimes you may be late because of the heavy traffic  .You have to pay for a car park and petrol . Cars are less comfortable than trains. You can't sleep or relax when you drive. Cars pollute the air more than trains, too.

    “Without music, life would be a mistake,” famous German philosopher(哲学家) Friendrich Nietzsche said over a century ago. Music is a big part of our lives. But in recent years, some US schools have cut music classes to control budgets(预算).

    For example, Chicago public schools hurt arts education when it fired(解雇)over 1,000 teachers. Among them, 10 percent of the teachers taught art or music, according to The Washington Times. In fact, this is not just a problem in the US. In other countries, such as China and the UK, music classes are not thought to be as important as ones like science, math and history. That's partly because music is not seen as a very important life skill, and it isn't tested. Many students are busy with schoolwork, so parents and students choose to focus on subjects that are tested more often.

    However, learning music is beneficial(有益的)in many ways.

    When playing music, you need different abilities to work together. It is not as simple as it looks, according to Kenneth Guilmartin of Music Together, an early childhood music development program. For example, when playing the piano, people see music notes and decode(解码)them in their brains. They also use their fingers to make sounds. You need to deal with all these things at the same time.

    Music has a special connection with science as well. You can see that many scientists are good at playing music: Einstein played the violin, and German physicist Max Planck was talented in playing the piano.

    Do you know pigeons(鸽子)? They are kind of birds. They are in white and grey. Some people say they are not beautiful but they are cute and smart. Many people keep them as pets. Why do people say pigeons are clever? Because pigeons can take letters from one place to another. And they know the way home. We often see the picture of a pigeon with an olive branch(橄榄枝)in its mouth. We call them peace pigeons. They are the symbol of peace.

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    Technology is changing our ways of life. Robby Pepper is Italy's first robot gatekeeper. He can answer questions in Italian, English and German. He is placed at a hotel to help answer simple questions from visitors. A guest from Moldova, congratulated the robot on his skills. "He's like a real person. He's really good." She said. "He talked to me, and he shook my hand."

    Japan's Softbank Robotics created Robby. It can provide hotel guests with information they need, like where to find a restaurant and its hours of operation. The use of robots is growing in service industries like tourism. But they are expected to become more useful as better artificial intelligence, or AI, is developed.

    The International Federation of Robotics says about 79,000 professional service robots were sold last year. It expects up to 25 percent sales growth each year. There are many different kinds of artificial intelligence machines: learning robots, cleaning robots, medical robots and public relations robots.

    We have made some progress in the development of AI, but we still have a long way to go. Experts say people in the United States and Japan seem more welcoming to robots than people in Europe do. Shoppers at a store in Scotland got one robot, Softbank's Fabio Pepper, fired out Customers were not willing to talk to the robot. And a security robot in Washington DC made news last year when it rolled itself into a fountain*and could not get out.

    In Brescia, the Cayu car sore is using another Softbank Pepper robot to sell cars Named Cayuiki .the robot is programmed to give information on cars, playing games and collecting information. It is helping to bring in possible car buyers .But the head of the Cayu car store said, "To sell the cars, you still need human beings."