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 historic Zhaozhou Bridge     2     (build) in A.D. 605.

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

The bridge consisted     4     44 individual 3D-printed concrete units, each of them approximately 3 by 3 by 5 feet. The sides, influenced by the Zhaozhou Bridge,     5     (make) with 68 individual concrete plates moved into place by robot arms.

The leader of the team noted that the demand for labor in construction projects will be     6     (increasing) in short supply in the future. If China cannot find people to build bridges, intelligent construction will be     7     important channel to solve this problem.

There have been other 3D-printed architectural     8     (project) over the last few years, as the technology has become     9     (popular) than before. A team at MIT built a sample house in 14 hours.     10     there are ever houses on Mars, NASA suspects the houses also will be built by robots using 3D printing.

Recently, a video of a Peking University math teacher has become popular on the Internet. In the video, he introduces himself     1     an undergraduate and graduate student in the School of Mathematical Sciences at Peking University, the champion of Shandong province in the high school mathematics league, and a gold medalist in the Mathematics Olympiad, which has also guaranteed him     2    (admit) to Peking University.     

Netizens immediately recognized that this unassuming teacher was a real big shot,     3    (know) as Chen Jingrun’s successor and a rare mathematical genius — Wei Dongyi! But the viewers     4    (impress) by his humble lifestyle as he held a bottle of water and a bag of steamed buns.

Born in 1991 in Shandong to a highly intellectual family, Wei Dongyi showed great talent in maths from     5     early age. He joined the middle school’s Olympiad training team in     6    (he) junior year and trained with a group of high school students. But     7     made him famous was his amazing performance at the 49^th and 50^th IMO. After winning the IMO twice, Wei Dongyi enrolled in the School of Mathematical Sciences at Peking University and got his master’s degree and PhD in only three and a half     8    (year). In 2019, he became an assistant professor of the university.

    9    (avoid) disturbances, the university called for reducing attention on Wei himself. “We     10    (sincere) hope that society will join us in creating an environment for young scholars to focus on research,” the university wrote in a statement.

Solar terms, which     1     (be) also called Jieqi in Chinese, are days marking one of the 24 time buckets or the solar year in traditional Chinese calendar, used to indicate the alternation of seasons and climate changes in ancient China.

As far back as the Spring and Autumn period, there were four solar terms: mid-spring, mid-summer, mid-autumn    2     mid-winter. After continuous improvement, by the Qin and Han dynasties, 24 solar terms have been     3     (full) established.

The Yellow River Basin in Northern China is believed to be the cradle of the solar terms system. China’s 24 solar terms are a knowledge system and     4     (society) practice formed through observations of the sun’s annual motion and cognition of the year’s changes in season, climate and phenology. Ancient Chinese divided the sun’s movement through the sky     5     24 segments, with each segment     6     (equal) one roughly two-week-long “solar term”.     7     (base) on the sun’s position in the zodiac, the 24 solar terms were created by farmers in ancient China     8     (guide) the agricultural affairs and farming activities. They serve as an instruction manual of sorts for farmers, allowing them to know     9     conditions to expect or what agricultural activities to carry out during certain periods of the year.

Solar terms are often called “the     10     (five) great invention” of China after paper making, printing, gunpowder and the compass.

“OMG! It’s so cute!” Since posts with such descriptions spread on social media in which a lovable panda is waving and smiling, Bing Dwen Dwen     1     (become) a star in the Olympic Villages, venues, and almost everywhere. After     2     opening of the Beijing 2022 Olympics, Bing Dwen Dwen, like hotcakes, incredibly went viral overnight. The craze has also become a trending topic on social media platforms. Actually, Bing Dwen Dwen     3     (select) to be the mascot of the Beijing 2022 Winter Olympics in 2019 from more     4     5,800 entries submitted from 35 countries.

Many people wonder     5     the mind-broadening ideas behind its design are. Insiders comment that Bing Dwen Dwen is a great combination of Chinese culture and the Olympic spirit. ‘Bing’ in Chinese means ice, standing for purity and strength, while ‘Dwen Dwen’ represents     6     (sincere), liveliness, and health. Plus,     7     (wrap) in an “astronaut’s suit”, Bing Dwen Dwen has a face designed to be a sports expert who     8     (come) from the future, representing a perfect mixture of winter sports and modern technology. The head is circled up with colorful floating lines, a reference to Beijing’s National Speed Skating Oval, directly     9     (show) skating tracks and 5G technology. Hence, Bing Dwen Dwen is a giant panda with a high sense of science and technology.

    10     (hopeful), the cute, witty, hi-tech Bing Dwen Dwen can become a classic and countless lasting will stick in Olympic history.

It can be easy to miss the wonderful performances of Klay Thompson if you watch at the Golden State Warriors (金州勇士) team in the NBA.

NBA Most Valuable Players Stephen Curry and Kevin Durant tend     1    (get) most of the attention, while Andre Iguadola     2     (watch) closely as well. But then Thompson, 26, does something to make you suddenly remember how special he is, too.

His 60-point game against Indiana on Dec. 5 was an excellent game in     3     has already been an amazing season. Scoring 60     4     (point) in a game is one thing, and it has only happened 66 times in the history of the NBA. But to do it in less than three quarters of play — 29 minutes —    5     (be) something very special indeed.

Even    6     (hard) to believe was the fact that Thompson only dribbled (运球) the ball 11 times and held it in     7     hand for just 88 seconds during the whole game.

“I am going to watch the tape of this game and see what I did well and     8     (obvious) celebrate this tonight, because it’s something I never thought I could do while     9     (grow) up,” Thompson told reporters after the game.

Klay Thompson already knew a lot about basketball early in his life. His father Mychal Thompson, the 1978 No 1 overall pick (选秀状元) in NBA, had a lot of influence     10     him while he was growing up.

It tastes like flowers. It smells like a campfire. What is it? It is a $6,000 bottle of Petrus Pomerol wine     1     spent a year on the International Space Station.

Researchers in Bordeaux are     2     (careful) studying a dozen bottles of wine that returned to Earth in January. They say the wines are part of a longer-term effort     3     (make) plants on Earth better resist climate change and disease. Alcohol and glass are not usually permitted on the International Space Station. Therefore, each bottle     4     (pack) inside a special steel container during the journey.

At a special tasting this month, 12 wine experts     5     (try) one of the space-traveled wines. They tasted and smelled the wine alongside     6     similar bottle from the same year that had stayed on Earth. The tasting was blind,     7     (mean) the experts did not know which wine they were drinking. Researchers said the wine experts had different     8     (opinion) about the difference between the earth wine and the space wine. “The wine that remained on Earth tasted a little     9     (young) than the one that had been to space,” said Nicolas Gaume, head of the research. “The experiment helped us learn about the effects of the lack of gravity     10     the wine.”