Thanks to advances in technology, how we make friends and communicate with them has changed【小题1】   (significant). Nowadays, we can move around the world and still stay in touch【小题2】   the people that we want to remain friends with.

Social media tools let us see what our friends are up to and maintain friendships. The digital age also enables us【小题3】 (find) people who share our interests, such as 【小题4】 (collect) model cars or playing an unusual instrument. Whatever our 【小题5】 (hobby) are, the Internet can connect us with others who also enjoy doing them, even if they live on the other side of the world.

However, the “friends" online don’t necessarily become our real friends. If people always exchange true 【小题6】 (person) information online, then these friendships can be real and meaningful. But we need to keep in mind that what we see on social media 【小题7】(be) often not the whole truth about a person. On social media sites, people tend to post only positive updates 【小题8】make them appear happy and friendly and the smiling photos can hide real problems.【小题9】 this doesn’t mean that we should throw the baby out with the bathwater. Although in recent years technology 【小题10】(change) the way we acquire friends, the meaning of friendship and our longing for friends remain the same.

The China National Space Administration published on Thursday three pictures 【小题1】 (take) recently by its Zhurong Mars rover (探测器), 【小题2】 showed the parachute (降落伞) and bowl-shaped back shell used in the rover’ landing.

The pictures 【小题3】 (shoot) by Zhurong’s camera on Monday as the rover was traveling southward for its scientific 【小题4】 (explore).

As of Thursday afternoon, Zhurong, named 【小题5】 the Chinese god of fire in ancient mythology, had operated 60 days on Mars and travelled 450 meters to survey the barren planet. Meanwhile, the mission’s orbiter has continued traveling around the Red Planet.

The 240-kilogam Zhurong is tasked with surveying Mars’ landforms, geological structures, soil 【小题6】 (feature), potential locations of water and ice, and other physical properties.

【小题7】 1.85-meter-high rover is the core component part of the Tianwen-1 mission, a mission 【小题8】 (hard) compared to the moon. Tianwen-1 was 【小题9】 (success) launched by a Long March-5 heavy-lift carrier rocket on July 23. 2020 from the Wenchang Space Launch Center, 【小题10】 (begin) the nation’s first mission to another planet.

In one of the most amazing 【小题1】 (discover) in recent years, scientists at a European Institute 【小题2】 (find) a way to turn one chemical that causes air pollution into a resource. Carbon dioxide is a form of pollution 【小题3】 (release)from the burning of fuels such as coal, oil and wood. Transportation and electricity production are its major sources. The researchers at Rutgers University have created 【小题4】 unusual technique which changes carbon dioxide into valuable raw materials. Using cheap and plentiful metals, the process 【小题5】 (efficient) turns carbon dioxide gas into water and carbon blocks that can be used as building blocks. The process is 99% efficient, which is the main reason 【小题6】 (account) for this result. Products that can be produced by this technique include raw materials for use in clothing, chemical and 【小题7】 (medicine) industries. The scientists have also created a company 【小题8】 (develop) commercial applications for this technique. As a famous American engineer puts it, “Pollution is nothing but the resources we are not harvesting.” 【小题9】 the development and application of this new technology, people may find value in 【小题10】 once was considered to be harmful waste.