China has once again showed its ability to change the world with its “four great new     1     (invent)” — high-speed rail, electronic payment, shared bicycles, and online shopping.

China’s new-generation high-speed train, the Fuxing Hao,     2     can travel at a speed of 350km/h, is now one of the     3     (fast) trains in the world. Besides high-speed rail, China     4     (improve) people’s lives in many other innovative (创新的) ways over the last ten years.

Bike sharing, for example, is not new itself. But China has made     5     much more convenient and popular both in China and overseas. The leading Chinese biking-sharing companies Mobike and Ofo are now operating in foreign countries such as Singapore and Britain.

And back in China,     6     (ride) a shared bike, you can stop to buy and eat whatever you want     7     (simple) with a tap on your phone. You could easily pay with your smart phone by     8     (scan) the seller’s QR code. Cashless payment has grown into     9     choice for Chinese people — even a pancake seller is using Alipay.

Besides, the four innovative ways of life are most appealing to youths from 20 countries taking part     10     the Belt and Road Initiative, and they wish their countries would emulate (效仿) China in terms of technological achievements.

As the countdown to the 2022 Beijing Winter Olympics continues, the new high-speed railway line     1     (connect) the capital with Olympic host city Zhangjiakou has just entered service. It cuts the travel time between the two from three hours     2     47 minutes. The route will stop at 10 stations, Badaling Chang Cheng station     3     (include). But this isn't just another bullet train(动车). This beauty, part of China's Fuxing series, can run up to 350 kilometers per hour without a driver--said to be the world's first smart high-speed railway.

So what makes them “smart”? Well, the carriages(车厢)     4     (equip) with5G signals, intelligent lighting and sensors to collect real-time data and detect any operational abnormalities. Meanwhile, each individual seat has     5     (it) own touch-screen control panel and wireless charging docks. Though the high-speed trains on the route are autonomous(自主的),     6     monitoring driver will be on board at all times. The trains can automatically start, stop and adjust to the different speed     7     (limit) between stations. Back at the station, robots and facial     8     (recognize) technologies can help passengers with directions, luggage and paperless check-ins.

Today, China is home to the world's largest high-speed rail network, and the     9     (fast) commercially operating train—the Shanghai maglev. According to the China State Railway Group, 1,036 Fuxing bullet trains have been put into operation since 2017.     10     the series first launched.

Humans have created a colorful global civilization throughout their long development, and the civilization of China is     1     important part of the world civilization.

As a representative feature of Chinese civilization, traditional Chinese medicine (TCM) is a medical science     2     was formed and developed in the daily life of the people and in their fight against diseases over thousands of years. It has produced a positive effect     3     the nation’s prosperity and the progress of human civilization. TCM has created unique views on fitness, on diseases and on the prevention and     4     (treat) of diseases during its long history. It represents a combination of     5     (nature) and social sciences, including profound philosophical ideas of the Chinese nation.

Since the founding of the People’s Republic of China in 1949, a number of national and local nature reserves     6     (establish), and research has also been conducted on the protection of rare and     7     (endanger) Chinese medicinal resources.

TCM and Western medicine have their different     8     (strength), so they can work together     9     (protect) people from diseases and improve public health. It has been spread to 183 countries and regions around the world and has been playing its part in promoting world peace and     10     (improve) the well-being of humans.

Beijing Opera,    1    (know) as China's national opera, also called Peking Opera, which originated in the late 18th century, is a combination of music, dance, art and acrobatics (杂技). It is the most influential and representative of all operas in China. It is called Beijing Opera because it is formed in Beijing. Beijing Opera has    2    history of 200 years and its origin can date back to old local operas, especially Anhui Opera,     3    was very popular in northern China in the 18th century. In 1790, the first Anhui Opera performance    4     (hold) in Beijing to celebrate the Emperor's birthday.

Later, some other Anhui Opera troupes (班子)     5     (continue) performing in Beijing. Anhui Opera was easy    6     (move) and good at absorbing the acting styles of other types of operas. Beijing accumulated many local operas,     7     (make) Anhui Opera improve quickly.

    8    the end of the 19th century and the beginning of the 20th century, after the marriage for 10 years, Beijing Opera finally formed, and became the    9     (big) of all Operas in China. We can    10     (honest) say that Beijing Opera is the most important opera in China.

The Beijing Daxing International Airport (BDIA) was     1     (formal) opened on Sept. 25, 2019. Located around 46km south of Tiananmen Square, it was designed by famed architect Zaha Hadid. BDIA was listed     2     the first of the “seven wonders of the modern world near completion” by the Guardian in 2015.

The new airport complex, consisting of a main terminal, a supporting service building and a parking lot,     3     (cover) an area of about 1.4 million square meters. The starfish design is extremely space efficient, with     4     journey of just 600 metres from security to the furthest gate.     5     could be the most expected innovation at BDIA is its artificial intelligence. The airport     6     (set) up more than 400 self-service check-in machines already, which can     7     (short) passengers’ waiting time to about 10 minutes. Travelers can be scanned on cameras     8     (use) facial recognition. Counters can be fully automated to capture (抓拍) face photos and relay     9     (they) during each part of the journey through the airport, including security and the departure gate.

The Daxing airport—said to be the world’s largest terminal in a single building—is expected     10     (receive) a large amount of the 170 million passengers by 2025. It will become a new transport hub for the greater Beijing region.

I like to share a story that happened a few days ago. I live in Germany and at that time of the year,     1     (dark) sets around 5 pm. It is cold, the     2     (street) are often wet and everyone likes to get home or to a warm place as     3     (quick) as possible.

This was the setting of that early evening. I was walking the sidewalk     4     saw a lovely animal, a bunny(兔子). My first thought was joy. “Oh! Bunny! Sweet!” The next: “Mind     5     (you) own business!” The following was “How can I be     6     help?” and “Who lost the bunny?”

Then I remembered that a woman with a carriage had just passed. I picked     7     bunny up, called to the woman, and showed it to her. She turned around, wondering, checked the carriage with her     8     (sleep) child in, and came back with a sunny smile. “Thank you so much! You saved my evening!” There was so much joy in her face. It makes me happy still to this day.

And it was only possible because I     9     (teach) to be kind enough     10     (see) the bunny and encouraged to care.

Mr.Johnson lived in the woods with his wife and children.He owned     1     farm，which looked almost abandoned.     2     (lucky)，he also had a cow which produced milk every day.He sold or exchanged some of the milk in the towns nearby     3     other food and made cheese and butter for the family with what     4     (leave)．The cow was their only means of support，in fact.One day，the cow was eating grass     5     it began to rain heavily.While making great efforts to run away，she     6     (fall) over the hill and died.Then the Johnsons had to make a living     7     the cow.In order to support his family，Mr.Johnson began to plant herbs and vegetables.Since the plants took a while to grow，he started cutting down trees     8     (sell) the wood.Thinking about his children's clothes，he started growing cotton too.When harvest came around，he was already selling herbs，vegetables and cotton in the market    9     people from the towns met regularly.Now it occurred to     10     that his farm had much potential and that the death of the cow was a bit of luck.