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.

The development of information technology

Information technology has developed in ways that people would never have imagined. In the 1980s, telephones started to become popular in daily life. Nobody at that time imagined that 20 years later people     1    (have) phones in their pockets and     2    (use) them for many functions other than just making calls. In 1983, there were only 200 computers connected to the Internet. At that time, even scientists didn’t realise that one day people    3    (be able to) connect with family and friends anywhere through video chats. And most certainly, people back in the 1980s    4    (not understand) that clothing and delicious food    5    (be send) to their homes by simply using an app on the phone.

The Moon’s near side，the one we all see，has been the target of many robotic and human missions.However，its far side，also     1     (call)the dark side because it faces away from the Earth and little     2     (know)about it，has never been explored.That changed on Jan.2，2019，when Chinese spacecraft Chang’e 4 made a soft landing on     3     is often referred to as the dark side.

The landing is     4     example of China’s growing desire     5     (compete)with the American，Russian and European space programs.China also wants to     6     (strength)its position as a regional and international power.

One of the great     7     (difficulty)in exploring the far side of the Moon is that it blocks all radio signals，    8     (make)it impossible to communicate with the Earth.To overcome this difficulty，in 2017，the Chinese National Space Administration launched a satellite to orbit the Moon and relay the signals.Once a     9     (rely)communication path was in place，Chang’e 4 could send back information.

Chang’e 4 will make astronomical observations and examine the structure and mineral composition of the ground above and below the surface，    10     researchers believe will provide insights into the solar system’s early days and perhaps even the origin of the first stars.

In the near future, we will be living in smart homes,     1     will provide us with a more comfortable environment. For example, AI controls will respond     2     voice commands, so you just say what you want and the home system     3    (obey). This smart technology is not a fantasy. Nevertheless, it will take some years before most new homes begin to use it.