The sea was rough that day and it was difficult to handle the boat. The waves were carrying James further and further away from us. From James’s face, I could see he was terrified of     1     (abandon) by us. Then suddenly I saw a shark. “ Look! There’s a shark out there,” I screamed. “Don’t worry. Old Tom won’t let it near,” Red     2     (reply).     3     took over half an hour to get the boat back to James, and when we approached him, I saw James being     4     (firm) held up in the water by Old Tom.

The virtual choir

Have you imagined singing together with hundreds of other people while you are at home alone? In fact, you can do this in a virtual choir. Anyone can take part in a virtual choir from anywhere and all you need is a video camera and Internet connection. A virtual choir helps connect ordinary people together and     1     (enable) them to add their voices to those of other individuals     2     (become) part of the global community. Eric Whitacre,     3     (bear) in the USA on 2 January 1970, came up with the idea of the virtual choir. He graduated from university in 1995 and then received a master’s degree in musical     4     (compose) from the Julliard School in New York in 1997. Over the next 10 years, Whitacre’s     5     (origin) songs began to become quite popular among choirs and singers. This led to the creation of the virtual choir.

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.

In China, food deliverymen are always in a rush between traffic regardless of wind or rain.     1     they make our life more convenient, this can come at     2     cost for them. On food delivery service platforms, the time limit is calculated by an algorithm （算法）.But it doesn't consider real-life     3    （ situation）,   such as red lights and speed limits. For deliverymen, delay means a decrease in pay. So they speed up and often break traffic rules,     4     （put） not only their own lives at risk, but also the lives of others. Many people scolded and asked the platforms to improve the regulations on delivery.     5     response, Eleme announced it would add a button to the app,     6     allows customers to extend the time limit. But this created more     7    （ heat） debate, as some felt the company was distracting attention. The Shanghai Customer Council commented that the move was not reasonable, adding that the problems should     8    （settle） between the companies and their employees. Also, even with the ability     9    （ allow） more time for delivery, some users felt this would not     10     （full） address the problems.

The Temple of Heaven Park, Tiantan in Chinese, is located in the Dongcheng District, Beijing. It is the     1     (large) and most representative existing masterpiece among China’s ancient sacrificial buildings.     2     (original), the Temple of Heaven was the place where emperors of the Ming Dynasty and Qing Dynasty held the Heaven Worship Ceremony. First     3    (build) in 1420, the 18th year of the reign of Emperor Yongle of the Ming Dynasty, the Temple of Heaven was enlarged and rebuilt during the reigns of the Ming emperor Jiajing and the Qing emperor Qianlong. In 1988, it     4     (open) to the public as a park, showing ancient philosophy, history and religion. Its grand architectural style and profound cultural implication give     5     insight into the practices of the ancient Eastern civilization.

Covering an area of 2,700,000 square meters, it is larger than the Forbidden City,     6     is enclosed by a long wall.     7     (it) northern part within the wall is semicircular symbolizing the heavens and the southern part is square symbolizing the earth,     8     (reflect) an ancient Chinese thought of “the heaven is round and the earth is square”. The main buildings lie     9     the south and north ends of the middle axis of the inner part. The most significant is the Circular Mound Altar (Huanqiutan) to hold many     10    (ceremony).

China plans to complete the construction of a space station and have    1    put into operation around 2022, said Zhou Jianping, the chief designer of China's manned space program, at a forum (论坛)    2    (hold) in south China's Guangdong Province. The space station,    3    could be enlarged if needed,    4    (design) to weigh 100 tonnes and accommodate three astronauts, according to Zhou.

“The main goal of the construction or the space station is to enable China to become a country    5    (independent) mastering the technology for long term manned flight in near Earth space, and having the capacity to carry out long-term manned scientific    6     (experiment) in near Earth space and comprehensive development and utilization (利用) of space resources,"    7    (say) Zhou at the 4^th China Summit Forum on Human Factors Engineering, which was held at SunYat-sen University from Saturday to Sunday.

The space station will be built as China’s main platform for space science research    8    the intention of mastering the technologies in constructing and    9    (operate) large space facilities, the technologies that guarantee life and health of astronauts who often fly in orbit, and the construction of a    10    (nation) space lab, according to Zhou.