People visit other countries for many reasons. Some travel on business; others travel to visit interesting places that are only found in other countries.

    Wherever you go, and for whatever reason, it is important to be safe. A tourist can attract a lot of attention from local people. While most people you meet when traveling are sure to be nice, there are dangers—theft（偷窃） being the most common. So prepare for your trip in advance（预先）.

    As you prepare for your trip, make sure you have the fight paperwork. You don't want to get to your destination(目的地) only to find you have the wrong visa, or worse, that your passport is about to expire(到期). Also, make sure you travel with proper medical insurance, so that if your are sick or injured during your travels, you can be treated. If you want to drive while you are abroad, make sure you have an international driver's license.

    If you need to take medicine with you—such as travel-sickness pills—keep it in its original container(容器). If you don't, you may find yourself doing a lot of explaining to customs officials at your destination.

    Buy a guidebook and read about the local customs of the country you are going to. Also, try to learn a few basic words and phrases—don't assume(假设) that the local people will speak your language.

    When you get to your destination, you'd better use official transport. Always go to the bus and taxi stands; don't accept rides from strangers who offer you a lift. If there is no meter（记程器） in the taxi, agree on a price before you get in. If you prefer to stay in cheap hotels while traveling, make sure you can lock the door of your room from the inside. If you are traveling with valuables such as jewelry, or a lot of money, you should ask about a safe（保险箱） for storing them in. Finally, remember to smile. It's the friendliest and most sincere（真诚的） form of communication, and it is sure to be understood in any part of the world!

    Different countries and people have different manners(举止).Here are some examples:If you visit a Chinese family,you should knock at the door first.When the door opens,you should not move before the host says “Come in,please.” Before coming into the house in Japan,it is good manners to take off your shoes.In European(欧洲的) countries,even if your shoes are very dirty,it is not necessary to take them off.In England,a guest(客人) always finishes the drink or the food to show that he enjoys it.This will make the host very pleased.

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    Is it difficult for you to get up in the morning? Are you often late for work or school? Yes? Then a scientist called Mike has a special bed for you. His Bed will get you up in the morning! Here is how it works!

    The bed is connected to an alarm clock. First, the alarm clock rings. You have a few minutes to wake up. Next, a tape recorder in the bed plays soft music and then your girlfriend's beautiful voice comes, “Wake up, darling, please.” A few minutes later, loud music comes from the tape recorder. At the same time, you may hear the voice of your boss. Your boss shouts angrily, “ Wake up at once, or you'll be late!” If you don't get up after that, you'll be sorry! A plastic “foot” is in the bed. It kicks you in the head. Then the bed waits for a few more minutes. What! You're still in bed! Slowly the top of the bed rises higher and the foot of the bed goes lower. Finally, you fall off the bed and onto the floor. You are out of the bed and awake!

    Mike made his bed because he wanted to take part in a competition. Mike won one of the top prizes for his bed.

    On May 5^th, 2017, at Shanghai Pudong International Airport, China's first Homemade jet airliner(喷气式客机), the C919, took off successfully for the first time. It has taken about ten years for the scientists and researchers to make this Chinese dream come true. It's a pride of the whole nation. So far, more than 23 countries have already ordered 570 C919 planes from China. But we still have a long way to go before the C919 carries passengers by 2020.

    What's more, China is working on the new high-speed trains with the highest speed of 400km/h. It will be ready by 2020. Many countries, especially the ones in Central Asia, Southeast Asia, the Middle East and Eastern Europe, are planning to build high-speed rail lines or to improve their railways with the help of China.

    China has made great progress in both science and technology. And it makes a great contribution(贡献)to humans，too. All of these are changing the daily life of Chinese people，even of the people around the world.