Since the first line in 2008, China’s high-speed railway     1    (symbolize) a country’s economic power, and increasing prosperity. By the end of 2020, the country had more than 37,900 km of high-speed rail lines     2     service. China is also among the first in the world     3    (introduce) new technology such as autonomous train operation.

China is most likely to construct the first super-high-speed railway line     4     allows trains to travel up to 1,000 km per hour between Shanghai and Hangzhou. The 150-kilometer railway is likely to bring the Hyperloop concept which was originally proposed in 2013 into     5    (real). So far, scientists have evaluated six proposals with the most suitable construction conditions. Two wealthy cities in     6     eastern coastal area finally stood out. The super-high-speed transport system uses the most     7    (advance) techniques to transport passengers and goods. It is reported that the two coastal cities     8    (identify) as the most suitable in the last conference due to their strong economic activities. The project will provide significant economic potential     9     help China maintain its leading position in high-speed railway technology.

Several other     10    (candidate) have also been considered. Apart from constructing high speed railroads in the country, China also plans to build several others to connect the country with its neighbors.

Technology has made parcel delivery (投递包裹) faster, more convenient and     1     (smart). Ahead of China’s largest online shopping festival, Singles Day,     2     falls on Nov 11,     3     unmanned car filled with parcels appeared at Guangzhou Institute of Science and Technology in Guangdong Province. The vehicle, which started operation on campus on Nov 2, is set to better serve the busy parcel delivery season for students. The new member of the campus has attracted attention. Some young people stopped the car, followed it and     4     (take) photos with it.

    5     (paint) white, the simple appearance of the car looks like a creature from the future in early science     6     (movie). It takes packages from the parcel collection station on campus to student dormitories. Four routes are provided on campus. “It aims     7     (solve) the ‘last-kilometer’ problem for parcel delivery services,” said Hu Jing, product manager in the company.

The vehicle runs at 15 km/h to ensure safety. When it meets an obstacle such as a car or a student, it stops and avoids the object, then carries on.     8     the service is new to the campus, student Zhang Ziwen has used it     9     (frequent). She waits for the message from the delivery company which     10     (tell) her to pick up the package in front of her dorm. “It is much more convenient and saves time to walk to the parcel station on the other side of the campus.”

Kjell Lindgren wanted to be an astronaut for as long as he could remember. He spent much of his childhood abroad with his family on several U. S. Air Force     1     (base). “The idea of becoming an astronaut by serving as an Air Force test pilot seemed like the path     2     I needed to follow,” says Lindgren.

Lindgren’s hopes of becoming an astronaut, though, would come to     3     sudden stop when he was diagnosed with asthma (哮喘), a serious disease, after     4     (graduate) from the U. S. Air Force Academy. The Air Force decided to     5     (medical) fire him.

So Lindgren came to a medical school, eventually specializing in emergency medicine. As part of his training, he     6     (test) for asthma again. This time, the tests said that he didn’t have the condition. Lindgren was     7     (please) because his dreams of spaceflight returned.

Lindgren worked as a flight doctor at NASA, treating crews that were preparing for spaceflight. Then, in 2009, he was selected as a NASA astronaut. Since then, Lindgren     8     (fly) into space twice. On his trip aboard the International Space Station in 2022, he served as the commander for SpaceX Crew 4     9     170 days. Lindgren is now a member of the Artemis Team, a group of scientists and astronauts working together     10     (send) people back to the Moon in 2024.

Pierre de Coubertin(1863-1937)     1     (consider) the father of the modern Olympic games. He was     2     educator and historian. From his work in education he came to see how     3     (organize) sports helped balance body and mind to promote health, as well as giving young people something constructive to do with their time.     4     a historian, he loved ancient Greece, and believed that the ancient Olympics was a great example and high point in the history of mankind. Although some Olympic-style     5     (competition) had already been held in different countries, Pierre de Coubertin was the first     6     (bring) the idea of different countries competing together in a modern international contest. He founded the IOC (International Olympic Committee) in 1894 and the first modern games were held two years     7     (late). Today the IOC continues to support and encourage the     8     (develop) in sports around the world. Pierre de Coubertin wrote a poem     9     (call)“Ode to Sports”, as well as the Olympic motto “Faster, higher, stronger”,     10     is still used today.