Hi, everybody. My name is Alice. I have worked as an airhostess(空 姐) for China Eastern Airlines for five years. I have some useful tips for you on taking flights.

    All passengers must arrive at the airport two hours before the departure time. You have much time to check everything. If you have never been to another country, don't forget to take your passports, air tickets and your suitcases with you.

    Have you got your boarding card(登机牌) yet? You must get it as soon as you arrive at the airport. Have you checked your suitcases and put name tags on them?

    If the suitcases are too heavy, you can find a trolley(推车). Have you exchanged(兑换) some US dollars? If not, there are a few banks at the airport.

    You can also have a meal at a restaurant before boarding. When you want to go upstairs, you can take the escalator.

    If you have any questions, you can come and ask me. We hope you will have a pleasant flight!

    What is the sky? How high is it? What color is it? What birds can live above it? These questions are difficult to answer, aren't they? In fact, the sky has no color. Then why does the sky look blue?

    We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can't fly very high. That is because the air gets thinner when they go higher. The same will happen to us if we go high enough. If we go up about 1,200 kilometers from the earth, we'll find no air there. Some birds can fly into the sky as high as a plane, but they cannot fly or live without air.

    Looking up above us, you will see the blue sky with white clouds. It is usually light blue. The color would be bluer when you see on the top of a high mountain. And you will see fewer clouds in the sky between you and the sun. Sometimes the sky doesn't look blue. When the sun rises and falls, you will see red, orange and other colors in the sky, such are the most beautiful moments of the day.

    Who can see the colors of the sky high above the earth? The astronauts! They can see those beautiful colors of the sky from the outer space. However, before flying into the outer space, they sit in a spaceship high above the earth and there is no air at all. The sky would be that dark and its color would be black.

    Now you may understand that we see colors because the air scatters (使散射) the sunlight. Light travels through the air. Without air there would be no colors.

    There are many online food shopping sites. Things l{#blank#}1{#/blank#}CDs, books, and DVDs sell well online. But it is quite different to sell food online because people like to see food with their o{#blank#}2{#/blank#} eyes. It is very I {#blank#}3{#/blank#} for people to buy fresh fruit and vegetables. Customers like to c{#blank#}4{#/blank#} their food by its color. They also want to touch and smell it. Some people like going to the same shop to buy food with good quality. So if the food is always g{#blank#}5{#/blank#}, they will feel comfortable buying it online.

    Boxes of fruits and vegetables have been d{#blank#}6{#/blank#} to homes around Britain for a few years now. Dried or canned foods are almost the same all the time, but fresh things are not. For example, People may want to pick their own apples so they can take the o{#blank#}7{#/blank#} that look nice. Buying dried and canned food online is easier. A person can buy this kind of food on the Internet and then buy fruits and vegetables at a store or a market.

    Being street smart is an important skill to have and a good way to take care of yourself.

    Always carry your phone with you, but do not look at 1 while you are walking. Being able to communicate or call for help is important, so keep a list of useful numbers. But put your phone away while you are walking so that you can keep your 2 up and see what's going on around. If you do need to check your phone, 3 and look at it quickly.

    Don't wear earphones 4 you are out. If you have to 5 something when you're out, use only one earphone or play it at a very low volume(音量).

    Travel with 6 or family members when possible and never go anywhere with a stranger. It's 7 to be careful with strangers. Remember not to get into a stranger's car if they call you over.

   8 dark and out-of-the-way places. Do not take short cuts through dark areas, even if it will make your trip much faster. If you have to go to unsafe places, go 9 someone you know or speak to someone over the phone while you are there.

    Run and shout if you feel unsafe. Run away as fast as you can towards a police station, hospital, or nearby business for 10. Shout as loudly as you can to get the attention of people nearby.

请阅读短文并从下列方框里的六个句子中选择五个还原到原文中，使原文的意思完整、连贯。

Most of tourists would like to visit the local museums when they travel to a totally strange city, which is considered the fastest and most effective way to learn about the history and culture of a new place. If you're planning a trip to Beijing, the Palace Museum is not to be missed. {#blank#}1{#/blank#}.

Best visiting time for The Palace Museum

The best time to visit the Palace Museum is between September and late October when you can enjoy the breathtaking view as well as comfortable weather. {#blank#}2{#/blank#}.Or else, you will see huge crowds of people instead of the splendid royal（皇家的）palace. And it will destroy your interest of enjoying the cultural relics（文物）.

Tickets for The Metropolitan Museum of Art.

Nov 1st - Mar 31st: 40RMB; Apr 1st - Oct 31st: 60 RMB.{#blank#}3{#/blank#}.

Additional 10RMB respectively for ticket to the Treasure Gallery and the Hall of Clocks.

For foreigners, passport is needed when buying tickets.

{#blank#}4{#/blank#}

The Palace Museum has two entrances: the southern gate and northern gate. The southern gate is Meridian Gate (Wumen). It is linked to Tiananmen Square to the south. The northern gate is Gate of Divine (Shenwu Men). You'd better enter the Palace Museum from its southern gate and get out from its northern gate, which is traditionally adopted as a one-way travel route.

Come to visit the Palace Museum to have one of the most unforgettable and wonderful days of your life.{#blank#}5{#/blank#}.But while visiting it, you will always find a reason why the Palace Museum is a must-see Beijing attraction.

There are 24 solar terms(节气)in China. They can guide farming activities and are believed to be an outstanding achievement by ancient Chinese. 

Grain Rain" is the sixth solar term in the 24 solar terms and it is the last solar term in spring. It falls on April 20 this year. The term"Grain Rain" came from a folk story. When Cang Jie created writing characters, grain came down from sky like rainfall. Therefore, the Yellow Emperor named this day as the "Grain Rain". When this day comes, the number of rainfall increases. It is very important for the growth of the grain. 

Nowadays, different areas have different customs during "Grain Rain", Picking and cooking tea leaves: "Grain Rain Tea" is the name for the tea made around the time of "Grain Rain" in the south of China. it is considered as one of the best kinds of tea. it not only has a strong and good taste but also can last for a long time in water. 

Blessing(祈福)to the sea: "Grain Rain" is a perfect time for fishing. Since it gets warmer and warmer, the sea also gets warmer and more fishes swim in the sea. Fishermen in the north often bless for safety and success on the sea. 

Killing insects: As the weather gets warmer. insects become more active. Farmers in Shandong, Shanxi and Shaanxi often use different methods to kill insects. 

Taking a bath: In some of the north-west areas, people take the shower in the river during "Grain Rain" period. They think it can help them be far away from the bad luck.