China has once again proved its{#blank#}1{#/blank#} (able)to change the world with the“new four great inventions”：high-speed railways，electronic payments，shared bicycles and online shopping．

    They're related to China's high-tech innovation(创新){#blank#}2{#/blank#} has improved the quality of people's lives，according to a survey{#blank#}3{#/blank#} (make)by the Belt and Road Research Institute of Beijing Foreign Studies University．

    “My wallet is no longer in use．I can buy and eat whatever I want simply with a fingertip on my phone，”said{#blank#}4{#/blank#} university student，adding that“even pancake sellers are using mobile payment．

    The bikes{#blank#}5{#/blank#} (them)are not new，but the operating model of bike-sharing {#blank#}6{#/blank#}base)on satellite navigation system，mobile payment，big data and other high technologies．

    China has entered a new innovative era，thanks to the large amounts of capital China has invested in{#blank#}7{#/blank#} (encourage)innovation，said Bernhard Schwartlander，WHO Representative in China．

    {#blank#}8{#/blank#} is increasingly clear that China is innovating and no longer copying Western ideas．This is{#blank#}9{#/blank#} (especial)true in mobile，where China is leading in many ways such as…social messaging app WeChat，she said．This is partly because China skipped over the PC era and went directly to mobile．China has the {#blank#}10{#/blank#} (large)mobile use in the world．

    The first UN Chinese Language Day at the United Nations {#blank#}1{#/blank#}(observe) on Friday at UN Headquarters in New York in 2010. {#blank#}2{#/blank#}the world's most widely spoken language, it seems appropriate that Mandarin(普通话) has one day every year dedicated(把……专用于) to it. This{#blank#}3{#/blank#}(official)marked day of Mandarin language celebration was set by the United Nations as a way of {#blank#}4{#/blank#}(celebrate) the language's history and contributions to the world.{#blank#}5{#/blank#} is hoped that having one day every year to celebrate Mandarin will encourage more people around the world to take it up. With China likely to become the {#blank#}6{#/blank#}(large) economy in the world, it is important that the wider world becomes interestingly more perfect in this wonderful language. Every year UN Chinese Language Day {#blank#}7{#/blank#}(fall) on April 20. A great way {#blank#}8{#/blank#}(get) involved in the celebration is to join a Mandarin class or attend one of the Confucius Institutes(孔子学院){#blank#}9{#/blank#}are set up by China in countries around the world. The number of people learning Chinese is on {#blank#}10{#/blank#}increase in China's neighboring countries, such as Korea, Japan, and Vietnam.

    In the beginning, the computer was as large as a room. This worried the designers. As time went by, it became smaller and smaller. With artificial intelligence, it was getting {#blank#}1{#/blank#} (smart) and quicker. In the early 1960s, computers {#blank#}2{#/blank#} (connect) by a network, which enabled their users to share information with others. Since the 1970s, computers {#blank#}3{#/blank#} (become) very important in communication, finance and trade.

    It seems that artificial {#blank#}1{#/blank#} (intelligent) can do much more than what we have ever imagined. From controlling the lighting in our homes to {#blank#}2{#/blank#} (help) us order pizza, AI has become an important part of our everyday life. But what about the more creative works of mankind? Art, music, poetry­these are inspired not by logic or reason, {#blank#}3{#/blank#} by emotion.

    In 2017, researchers in Switzerland created the "deep artificial composer (DAC)", {#blank#}4{#/blank#} can create original music all by {#blank#}5{#/blank#} (it). The scientists trained it to "listen" to over 2,000 different folk songs and {#blank#}6{#/blank#} (base) on this input, the AI taught itself how to get the pitch (音高) and timing and choose the right notes. Besides music, AI already {#blank#}7{#/blank#} (enter) the world of poetry as well. In 2018, Chinese and Japanese researchers wrote an AI program that uses images to write poems. Then the poems were sent to 500 human judges, who were asked to tell {#blank#}8{#/blank#} they were written by a human or a computer. The result showed that as {#blank#}9{#/blank#} as 200 judges mistakenly thought they were written by a human.

    So if you were {#blank#}10{#/blank#} artist or a musician, would you watch out?

    Across the world people prepare and drink tea in many {#blank#}1{#/blank#}(difference) ways. The handmade purple clay teapot (紫砂壶) is one of the most popular{#blank#}2{#/blank#}(item)among tea lovers in Asia. But the skill of making that particular teapot faces a lot of challenges in modern times.

    Chinese people {#blank#}3{#/blank#}(drink)tea for thousands of years. And {#blank#}4{#/blank#}(recent), these handmade teapots have become popular. As an old saying goes, "A thing is valued if it is rare."

    Tea sets (茶具) have been a key part of Chinese culture. Gao Dezhi, 99, has been making purple clay teapots since he was 13 years old. Usually, this kind of skill {#blank#}5{#/blank#}(pass) down from generation to generation or taught to those {#blank#}6{#/blank#} are crazy about the craft. Gao says that his son and daughter are not {#blank#}7{#/blank#}(interest) in learning such skills. They already earn a lot of money by {#blank#}8{#/blank#} (work) in other jobs. People cannot make such things {#blank#}9{#/blank#} they have no interest in learning the skill, he says.

    In order to protect skills {#blank#}10{#/blank#} disappearing, local people have built a special museum where masters can show their craft.