In many high schools，there are strict rules about using mobile phones. If your phone rings in class，for example，the teacher will be very angry.
   Every mobile phone has a ringtone (铃声). It tells you that someone is calling you. Now，there is a ringtone called “mosquitotone (蚊子铃声)”. Using it，students can receive calls and text messages (短信) in class but the teacher will not realize what is happening. How?
   Mosquitotone has a special sound. Only children and teenagers can hear it. As we get older，we are unable to hear some sounds with high frequencies (频率). As a result，a child or teenager can hear the mosquitotone ringtone, but it's_inaudible_to someone 20 or older.
   But sometimes，people over 20 can hear the ringtone. One British student's phone uses mosquitotone. In class，the student's phone rang. The 32­year­old teacher looked at the student and became unhappy. “I heard that. You know the rule：no mobile phone in class.”
   Not all the students are interested in mosquitotone. Jerry Jones，a high school student of 17，says，“Using mosquitotone too often is bad for our hearing. I may use it for pleasure，but not in class. It's unfair to the teachers！”
   What do parents think of mosquitotone？“I think it is perfect for places like movie theaters，” says Connie Neeson,44.“Think about it. Yon're watching a film and someone's mobile phone rings. Mosquitotone is good because many people don't hear it. However，it also has a bad influence on their study if students use it in class.”

    Different families have different table manners. For example, some people don't talk while they eat, some do. Some people talk with their mouths full, others don't. Some people put their elbows (肘) on the table, but others consider it unacceptable.{#blank#}1{#/blank#}. Here's some good advice. If you're new somewhere just watch what other people do and don't do. If you follow the people you're eating with, you'll always have good table manners in their eyes.

    I grew up in an old-fashioned family. The main time my family saw each other was at dinner.{#blank#}2{#/blank#}. We talked about our day through the dinner whether we had good stories or not.A reason we talked so much was that our parents didn't allow us to get up until we finished all of our food. Being the daughter of a Greek cook and an Italian woman, my mom always put doubleportions (双份) of delicious meals on our plates.{#blank#}3{#/blank#}. I still remember my father making us eat dinner for almost two hours just because we couldn't finish our food!

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

A. When we sat down to eat it was our time to talk.

B. The problem was that sometimes we couldn't finish all the food.

C. Table manners vary (变化) with different people and different situations.

D. You may find Western table manners are different from Chinese manners.

    Hip-pop Dancing

    Hip-pop dancing is popular with many young people today. They like it because they can invent their own moves. They use this dance to show their love for life. It also shows that they feel good about life, that they just want to be themselves and enjoy life, and that they are not afraid of problems.

    Hip-hop dancing has a history of more than 30 years. It first began in the 1980s in the US. In early times, it was seen in New York and Los Angeles. At that time, many young black people often danced to music in the streets. They used their legs, arms, heads and even shoulders to dance. Many young people still use most of these moves today.

    Hip-pop dancing became popular all over the world because of the 1983 movie Flash Dance. Some people performed Hip-hop dancing in the movie. People enjoyed their performances. They began to dance like them. Then it became popular. There are two kinds of Hip-pop dancing: the new school and the old school. More and more young people are learning Hip-pop dancing. People believe that it is a good way to exercise their bodies, and that it is good for their health.

阅读短文，选出最佳答案。

    Libraries give kids a quiet and safe place to read and learn. For over 100 years, libraries have played an important role in Americans' education. But how are these book-filled buildings changing with the times? You may be surprised to find out.

    Benjamin Franklin famously founded America's first lending library in 1731. But the public library system got its biggest development in the American history in the late 1800's. Businessman Andrew Carnegie donated millions of dollars to help build free public libraries across the country. Between 1886 and 1919, Carnegie's donations helped build 1,679 new libraries.

    Carnegie believed that libraries could offer the chances to Americans, young and old. He knew that the more libraries there were, the more people would have opportunities to read and use books, speeches and news.

    If you can easily find a public library in your community, you'll get more chances. After all, the United States has 9,225 public libraries. Today, libraries keep growing. Seven tenths of the libraries have free Internet. It provides much more information and opportunities to ask for jobs online.

    Libraries are also teaching kids about the fun of reading. The new program Read! Build! Play! Adds reading into playtime. As kids listen to a book that is being read aloud, they use Legos (乐高积木) to build images(图像)from the story happily. Today's libraries are always looking for creative programs to bring people into the library.

    Benjamin Franklin once said, “The doors of wisdom are never shut.” As long as the doors of public libraries are open, what he said is most certainly correct!

    Bath, 97 miles west of London, is the largest city in Somerset, England. It became a World Heritage Site in 1987.

    The city got its name from the Roman Baths, which was a place for public bathing in Roman Britain. The water there is naturally heated under the ground. Today visitors are no longer allowed to enter the water. However, the exhibitions there will tell you the history of the Roman Baths. You can see many ancient Roman objects, including the coins that were thrown into the water to show respect to the goddess.

    Looking over the city, you will see many old buildings in the color of honey. Among them, the Royal Crescent and the Circus are the most famous. The Royal Crescent is a row of 30 houses in the shape of crescent. The Circus is about 200 meters to the east of the Royal Crescent. It is a huge circle formed with large townhouses. It is divided into three parts of the same length by three entrances with a lawn in the center. When visiting Bath, you can't miss these two sites.

    The museums in the city are also popular. You can go and appreciate western paintings. If you are interested in the English writer Jane Austen, you can go to Jane Austen Center to know more about her life with her father in Bath. If you come in October, you can even take part in the bath film Festival.

    Dubai (迪拜) is a good place to travel to. There, you can find many tall buildings, taste lots of delicious food and experience some interesting things. Have you ever been to this city? If you go to Dubai during the summer holiday, you may see a special kind of "taxi". It is a drone (无人机). It flies in the sky by itself！ It is said that Dubai plans to use Chinese—made droes as a self —flying air taxi in July.

    The drone taxi is named EHang 184. A Chinese company(公司)made it. The city of Dubai will start using it in July. It will be the world's first passenger drone, according to Yahoo News.

    The drone taxi can fly up to 3, 500 meters high. It can fly at a top speed of 160 kilometers an hour. It can only take one person.

    How do you call an EHang1842 You use its app(应用程序) on your phone. When the drone comes, you choose the place you want to go to on a touch screen. There is no pilot in the drone. But some people on the ground will be watching it. They will make sure your trip is safe. You don't have to worry about it.

    EHang 184's battery(电池) can only keep about 30 minutes, So it cannot take you further than 50 kilometers.

    Would you like to take a trip in this flying drone? Don't wait. Let's go!