A Chinese university has built the world’s longest 3D-printed bridge. The creation has a     1    (long) of 26.3 meters and a width of 2.6 meters. Its design came from the historical Zhaozhou Bridge     2    (build) in AD 605.

    3     the ancient Zhaozhou Bridge required a decade to build, the team spent only 450 hours     4    (complete) all of their new bridges concrete parts. Besides, the bridge’s cost came in at just two thirds of that of     5     ordinary bridge.

The bridge consisted     6     44 individual 3D-printed concrete units, each of them approximately 3 by 3 by 5 feet. The sides, influenced by the Zhaozhou Bridge,     7    (make) with 68 single concrete plates moved into place by robot arms.

The leader of the team noted that “the demand for labor in construction projects will be in short supply     8    (increasing) ” in the future. If China cannot find people to build bridges, “intelligent construction     9    (become) on important channel to solve this problem”.

There have been other 3D-printed architectural projects over the last few years, as the technology has become     10    (popular) than before. A team at MIT built a sample house in 14 hours. If there are ever houses on Mars NASA suspects the houses also will be built by robots using 3D printing.

Each time I take the underground I find myself     1     (surround) by dozens of passengers playing smart phones. They almost won’t even give a glance at the outside world. You may think it is normal to play smart phones     2     (kill) time. What’s worse, when I talk with some of my friends, they talk as playing, which is really an     3    (annoy).

I really miss the old days when I     4     (chat) with some passengers on the train. Now things are different. Everyone just concentrates     5     their smart phones. When taking with them,     6     seems that you are disturbing their playing smart phones. I could not just blame them for I am moving to be one like them. Sometimes I just feel we     7     (large) ignore our neighbors and want to keep in touch with     8     (distance) strangers though he Internet. We care about the things far away but pay no attention to the needs nearby.     9     awkward the situation is! In a way we     10     (control) by smart phones now. Are you experiencing the same situation like me? Do you have any ways to avoid that?

The Palace Museum, known as the Forbidden City, is the     1     (large) and most well     2     (reserve) imperial (皇帝的) residence in China today. It is divided into an outer and an inner court with     3     rectangular shape, 960 meters long from north to south and 750 meters in width from east to west. It has a splendid history since the Ming Dynasty, and it     4     (rebuild) and repaired many times in the past. I was so excited to visit it with my family last summer vacation. After we passed     5     the Front Gate, a lot of palaces appeared. The tour guide told us there were almost 8,700 rooms in the Palace Museum. During the Ming Dynasty, construction began in 1406. It took 14 years to build the Forbidden City. Visitors     6     walk among the buildings can feel both the     7     (weigh) of history and a wonderful sense of peace. And I was     8     (real) surprised that the workers could build it so well that even today it is not out of style. I could not remember all the names of the     9     ( building), but I took hundreds of beautiful photos on the way. I think I will never forget the     10     (amaze) trip I had in Beijing, China and I will go there next time with my friends.

Many people agree that going to museums     1     (be) a good way of learning about ancient treasures. However, others may find it boring to have time     2    (spend) there. Therefore, how to make museums and their lifeless collections more appealing is a tough question worth     3    (attach) importance to. Luckily, National Treasure, a TV program     4    began to air on Dec. 3, 2017, throws light on ways to inspire interest in museums and their collections.

Aiming to make ancient relics to come alive, the program presents treasures through different artistic methods including lots of dramatic     5     (perform) and storytelling, which explain the history behind each cultural relic     6    detail, so that the audience can not only understand how to appreciate the beauty of cultural relics, but also know the civilization and the spirit of Chinese culture. In fact, such programs that promote traditional ancient relics     7    (become) popular in recent years. For example, a 2016 documentary featuring the Forbidden City's cultural relics and their restorers, called on many college students     8    (apply) to work as volunteers there.

    9    is universally accepted that National Treasure has been    10    (success) in encouraging more people to visit museums by touching their hearts.

It is very difficult to find a public place without advertisements now. When     1     (see) in the newspaper or on TV, advertisements will meet our eyes .     2     is true that in the activities of business advertisements     3    (play) a more and more important part now. They tell people about new products and help more in sales. In this way, they help to be on the increase of products. This is     4     big advantage.     5    , advertisements also bring people all kinds of disadvantages. For example, some of the manufactures (生产者) want to win a big market for their products. They are so dishonest that they don’t tell the     6     (true) about their products. When people are watching an interesting TV play, it is suddenly stopped by some advertisements     7     (appear) on the screen. And of course, people may get tired     8     them. Also some advertisements attract children, some of     9    will ask their parents to buy them something in the advertisements. From this point, advertisements     10     (real) have some disadvantages.

Since 1972, more than 800 cultural sites that are thought to be of special importance to human history and culture    1    (add) to the World Heritage Site List. The Taj Mahal in India and the Imperial Tombs of the Ming and Qing Dynasties in China are two of the best known    2    (example).

The Taj Mahal,    3     was built between 1631 and 1648, is    4    (obvious) a masterpiece of architecture. It took more than 20, 000 workers and 1,000 elephants    5    (complete) the project. Building a Taj Mahal was a labour of love. It was built in memory of the emperor's beloved wife. If the Taj Mahal is a    6    (celebrate) of the heart, then the Imperial Tombs of the Ming and Qing Dynasties are    7    monument to the mind and spirit.    8    (build) by several emperors between 1368 and 1915, the Imperial Tombs represent Chinese cultural and historical values.

Human life lasts only a short time    9    art and culture last forever. The UNESCO World Cultural Heritage Sites programme attempts to preserve the best of human history. Masterpieces such as the Taj Mahal and the Imperial Tombs of the Ming and Qing Dynasties remind us    10    what we can achieve at our finest, and inspire us to live up to our great past in the future.

As the COVID-19 epidemic (流行病) continues to spread    1     (global), young people in China care for the well-being of their young friends across the world and are trying to deliver messages of love and care in    2    (variety) ways now.

As a part of the project “We Are Always Together in Weal and Woe”, a new program has recently been launched by China Soong Ching Ling Foundation,     3     has collected 85 letters    4     (write) by students from 17 middle schools in Beijing to young people in pandemic-stricken (疫情重创下的) countries. These letters are shown    5     the form of sand paintings and have been made into a series of short    6     (video) titled A Letter to Friends.     7     project “We Are Always Together in Weal and Woe” is hosted    8     supported by China Soong Ching Ling Science & Culture Center for Young People. More works    9     (produce) by Chinese young people in the near future, aimed    10     (send) support and blessings to more countries.