Suppose you find a bright yellow bike on a street corner in the city. You hop on(跨上)it and 1. But wait—isn't this stealing? No, it isn't. 2 shouts, "Stop! Thief!" That is 3 this free ride is just fine with the city.

    You 4 find hundreds of free yellow bikes in some US cities. The idea began in Portland, Oregon, in 1994. People saw a need for 5 transportation, and they wanted to help 6 pollution. So, to get citizens(市民) 7 their cars and onto pollution-free bikes, they 8 the Yellow Bike Project.

    The 9 bikes are painted bright yellow and placed throughout the city. People can hop on the yellow bike and ride to run errands(短程差事), to work 10 to school. Then, they leave the bike for the 11 rider. There have been times when bikes have been stolen, but most people 12 the rules, because they think it is not wise to 13 the bike that's already free.

    Portland's 14 was quickly loved by a lot of people. Within two years of its starts, similar programs were 15in cities in six other states.

    Lab work is fun but you must be careful. Listen carefully when your teacher reads and explains the rules before your first lab lesson.

    Ray Charles, a black singer and pianist of the USA. He had won 12 Grammy Awards (格莱美奖) and performed at 10,000 concerts around the world. Many musicians called him simply "the Genius" (天才).

    Ray Charles was born into a poor family, without a father. When he was 5 years old, his younger brother died, and around the same time, Charles started to lose his sight. By the age of 7 he was completely blind. He had already been learning the piano for a year, and when he went blind, his mother knew this would be the only way he would make any money in the future. All his life, Charles remembered her saying: "Do it right, or don't do it at all."

    Later he went to a school for blind and deaf children. There the teachers also encouraged him to study music. Sadly, while he was still at school, his mother died. He left school and in the early 1950s Charles organized a group of players. He sang, played the piano and wrote music.

    He made many classical CDs wit h famous artists such as Elton John and the Beatles.

    In 2003 a film of his life Ray was made. The part of Charles was played by a younger actor and musician called Jamie Foxx. The film director brought Foxx to meet Charles. After they had been playing together for two hours, Charles, then aged 73, jumped up and said: "He's the one …… he can do it." A year later Charles died aged 74. The film of his life has been as popular as his songs and means that the memory of Charles' music will live on.

    Mr. Guo is a teacher from Xi'an. He asked his students to hand in their homework through a QR code(二维码). "We spent an hour or two in class learning how to generate(使产生)the codes, and in the end everything gets easier." Said Guo. "When students finish the homework, they keep in on WeChat(微信). Then, each student makes his own QR code and gives it to me. So I can check their work everywhere using my computer or telephone."

    The QR codes can be sent to Mr. Guo by email, QQ and WeChat. When Guo scans(扫描)his students' QR codes, their homework appears on his phone. He finds that their homework becomes more creative(创新的), with many pictures, music and even videos.

    Guo's students like the new way and think it is interesting. "We are living in the information age. Many students like to work with computers, which makes learning more fun." said Tingting, a student of Guo's.

    "The paper is not easy to keep, but the code is easy to keep and share," Guo said. "It is worth trying to use new technology in education. Education itself is a kind of creation. I don't want my students to fall behind the times."

    However, some parents are worried. They are afraid that their children will spend too much time on computers and less time communicating with teachers. But in fact, it's unnecessary. Students still need to look up information in books and write it down when they do their homework. They only use the code when they hand in their work, which doesn't take them too much time. Also for teachers, it allows them to check the students' work at any time. And it's also an easy way to share homework with other students.

    The Silk Road is the name of different roads that long ago connected Europe, Africa and Asia. People reached these different places along these roads. Scientists believe people began to travel the Silk Road about 3000 years ago. By the time the Chinese silk trade became important in the world, the Silk Road covered almost 6500 kilometers. It spread from Rome to China, which is from the West to the Far East.

    Traders travelling along the Silk Road carried silk, of course. They also carried and traded spices(香料),cloth, valuable stones and gold.

    There is a famous old story along the old road. It is said that Roman soldiers(士兵)travelled through central Asia. They started to live somewhere near the ancient Chinese village of Liqian. Some of these Romans married local Chinese women and the story of blue-eyed villages of China was started.

    During its busiest period, the Silk Road allowed people from many different cultures and countries to meet each other and mix. The Silk Road allowed the sharing of valuable goods and new ideas. These included people and trading goods from the Mediterranean, Persian, Magyar, Armenian, Bactrian, Indian and Chinese areas. All these peoples travelled the Silk Road, and they shared goods, stories, languages, and cultures.

    In modern times, the old Silk Road routes(路线)are still used, but now they are crossed by trains instead of camels and horses. There is even a Silk Route Museum in Jiuquan in China. It has over 35,000 objects from all along the Silk Road. In this way, China protects the history of many countries and peoples.

A ceremony(仪式)where boys become crocodile(鳄鱼)men

    When does a teenager grow up and become an adult? In many countries, it happens on your 18^th       (生日), but in some parts of the world, you have to do something special to        (进入)the world of grown-ups.

    On an Oceanian island, some people live near the Sepik River, which is        (充满的)of crocodiles. They believe that crocodiles made the        (地球)and its people. When it is time for teenage boys to become men, a "crocodile ceremony" takes place.

    The boys are taken to small house        (叫作)the "Crocodile Nest". In the house, the boys are told to think of their crocodile "fathers and mothers". Old people in the village say that if the boys think of their crocodile parents, they will be stronger and        (勇敢的)because the ceremony will cause great pain. To take their minds off the pain, the boys tell jokes in the house, rather than just stay        (沉默的). Surprisingly, some of the boys even sleep        (在……期间)the most painful parts of the ceremony! It will be        (八)weeks before they leave the house.

    When the boys        (最后)leave the crocodile house, there is singing and dancing in the village to welcome the new crocodile men.

注意：

1）参考词汇：轮子wheel 太阳能solar power

2）词数80左右（文章的开头己给出，不计入词数）。

3）不得透露学校、姓名等任何个人信息，否则不予评分。

    My invention is a flying bike.