题目内容：

阅读下面短文和问题，根据短文内容和每小题后的具体要求，完成对该问题的回答。答语要意思清楚，结构正确，书写工整。

Beijing Daxing Airport is Finally Open

Beijing Daxing International Airport (PKX), also known as Beijing New Airport, is the biggest airport in the world. It is also the second international airport of Beijing along with Beijing Capital International airport. Daxing Airport is located in Daxing District (the southern suburbs of Beijing). Its location was selected after thorough analysis. With a 46km-distance from Tiananmen Square, a 67km-distance from Beijing International Airport and a 26km-distance from Langfang City Center, Daxing Airport aims to become the main airport hub of the serving area. It is expected to handle up to 45 million passengers per year by 2021 and reach an outstanding 100 million in the future.

How big is Daxing Airport?

Daxing Airport was called “Starfish” because of its impressive shape. There is a huge terminal building (航站楼) covering a 700,000m² area while the ground transportation centre extends to 80,000m². For the time being, Daxing Airport has four runways and 79 airport stands. The 4 runways’ size is impressive while the airport stands are suitable both for one twin-aisle (双通道) and two single-aisle planes. Eventually, the airport will have 7 runways in total and will be able to serve about 620,000 flights annually.

Who designed Daxing Airport?

The airport’s design is pioneering. Its terminal building is the impressive outcome of the collaboration between ADP Ingeniérie (ADPI) and the architecture team of Zaha Hadid (ZHA) who tragically passed away in 2016. Then, in August 2018, Hong Kong design studio Lead 8 undertook the design of the new commercial terminal which is expected to respond to every passenger’s needs.

What are the designing advantages?

Daxing Airport was designed to show high respect to environmental protection. Besides, to simplify passenger procedures, there are only less than 600 meters between checkpoints and gates and a minimum waiting time for baggage claim. Furthermore, the designers paid great attention to the convenient ground transportation system of the airport. High-speed and intercity trains, metro and public buses will connect the new airport to Beijing city and other major areas in a fast and efficient way.

1.What does Daxing Airport aim to? （不多于九个单词）

2.Why is Daxing Airport called “Starfish”? （不多于五个单词）

3.Who designed the commercial terminal? （不多于六个单词）

4.Please write down one of the designing advantages of Daxing Airport. （不多于七个单词）