The Chongyang Festival is a traditional Chinese festival. It is celebrated on the ninth day of the ninth lunar(阴历) month. It's also called the Double Ninth Festival.

    The festival started as early as the Warring States Period (475-221BC). It has a history of more than 1, 700 years. Among the numbers from zero to nine, nine is the highest odd number(奇数). People believe that two "ninths" meeting together stand for a long life. So it is a special holiday for Chinese people to show love and respect for their elders. They hold many kinds of activities in honor of old people to wish them good health and a long life.

    The festival comes during the golden time of fall. On the day, people traditionally drink Chrysanthemum(菊花)wine, eat Double-Ninth Cakes and climb mountains. They also carry a kind of plant, its name is dogwood, People in ancient times believed that the plant could drive away evil(邪恶的) spirits and prevent them from catching an illness in winter.

    (Zhejiang, Dec. 2) The Liight of Internet Expo opens at Wuzhen, Zhejiang Province, as part of the 2017 World Internet Conference, More than 400 Internet companies, big and small, attended the great event. They include not only industry giants（大公司）such as BMW, Kaspersky, Alibaba and Tencent but also startups that are leaders in some areas of information technology.

    Aliaba s self-service supermarket is a real hit, which shows the future of offline shopping. It allows shoppers to take what they like after scanning a OR code（扫描二维码）． Without waiting in line, it feels like you are picking things from your own table at home.

    In a corner at the expo, the E-take driverless car also gets visitors attention. It is orange and similar in style to a European sports car. It was developed by Zhejiang Hozon New Energy Automobile. A spokesperson for the company said the work of bringing the car to market is progressing well.

    Ofo, a leading bike-sharing company based in Beijing, is present and also has been working on new technology to serve customers. Ofo, working with Huawei Technologies Co, has introduced a smart bicycle lock. It can be unlocked with a smartphonusing near-field communication technology, which is "even easier than scanning a QR code". Li Bofei, a business manager for the company said, "We are trying to make things even easier."

    At the expo, We Doctor Group shows a smartphone. It has a button(按钮)on the back to make things simpler and easier for elderly smartphone users. It allows them to connect to the company's Internet hospital platform ( 平台), which was developed in late 2015.

    Technology is changing our lives, isn't it?

    We live in the age of the computer. People like scientists, teachers, writers and students use computers to do all kinds of work. But more than 30 years ago, computers couldn't do much. They were very big and expensive. Very few people were interested in them and knew how to use them. Today computers are smaller and cheaper. Since they can do a lot of work, many people like to use them. Many people have them at home.

    Computers become very important because they can work faster than men and make fewer mistakes. Computers can help people do a lot of work. Writers now use computers to write. Teachers use them to teach. Students use them to study and children use them to play games. Computers can also remember what you put into them. Computers are very useful and helpful. They are our good friends. Do you want a computer?

    The Chongyang Festival is a traditional Chinese festival. It is celebrated on the ninth day of the ninth lunar(阴历) month. It's also called the Double Ninth Festival.

    The festival started as early as the Warring States Period (475-221BC). It has a history of more than 1, 700 years. Among the numbers from zero to nine, nine is the highest odd number(奇数). People believe that two "ninths" meeting together stand for a long life. So it is a special holiday for Chinese people to show love and respect for their elders. They hold many kinds of activities in honor of old people to wish them good health and a long life.

    The festival comes during the golden time of fall. On the day, people traditionally drink Chrysanthemum(菊花)wine, eat Double-Ninth Cakes and climb mountains. They also carry a kind of plant, its name is dogwood, People in ancient times believed that the plant could drive away evil(邪恶的) spirits and prevent them from catching an illness in winter.

    Most of us have never thought about building an educational toy by ourselves. If we need a learning toy or something, we simply go to the nearest store and buy it. However, things are not as easy in third world countries. With families even having no food to put on the table, buying toys, especially the educational ones, is the last thing on the parents' minds.

    So how can one get these kids interested in science？This was a question that worried the Indian engineer Arvind Gupta so much that he decided to give up a good job and spend his life making toys from trash, things that people no longer want or need!

    Mr Gupta began teaching in the 1970s. While still an engineering student at the Indian College of Technology, he volunteered to teach the children who could not afford to go to school. Upon graduation, he found a good job at India's Tata Motors and spent the next five years designing cars.

    But he soon realized that this was not something he wanted to do for the rest of his life. So he took a year's training course and took part in the Hoshangabad Science Teaching Program whose aim was to make science fun and exciting for poor children using available materials.

    Mr Gupta found the whole project so satisfying that he decided to leave his high-paying job and focus his attention on designing educational toys that were not only cheap and easy to build, but also full of scientific principles(原理) , so that children could get interested in this interesting subject.

    When the Internet started becoming a more widespread learning tool, Mr Gupta created a toys from Trash website and also recorded over 250 You Tube videos.

    Today, over 50, 000 children and teachers visit the website daily to download the videos for the toy creations based on cool science, Some young children have become so inspired(鼓舞) that they have even won international science competitions with the help of his creations