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.

In real life, we usually forget【小题1】(lock) the door or switch off the lights or the gas,     【小题2】will cause great problems. Besides, we will also meet these things: the water pipe will start 【小题3】(leak), the electrical wiring will short, and even your health will have problems, but you needn't worry about them. In the not-too-【小题4】(distance )future, the smart homes will deal with them.

A smart home is one that【小题5】(integrate) computers into the structure of the building itself. In this way, many of the things that we now do【小题6】(we) will become available. For example, the smart home could control the air conditioning and lights so that you would no longer have to turn switches on and off,【小题7】(make) your home more energy-efficient. The smart home could also monitor itself to make sure that everything is working as it should, 【小题8】 send you warning if there is a problem. Such smart homes could even【小题9】(programme) to detect your health problems, and then give you right advice as to the food you should eat or if you should see a doctor. So, in【小题10】sense, smart homes will lead us to living smarter lives. Luckily, some new technology has been used in our homes.

Chinese astronauts conducted a science lecture 400 kilometers above Earth to millions of students as they orbited in the Tiangong space station.

It was the first lecture of the Tiangong Class, or Heavenly Palace Class, China’s first extraterrestrial (宇宙的；外星的) lecture series, 【小题1】(popularize) space science. More lectures【小题2】(hold) based on the country’s manned spaceflights in coming days.【小题3】 such activities are aimed at is spreading knowledge about manned spaceflights and sparking enthusiasm for science among young people.

The crew greeted students, teachers and other【小题4】(participate). The astronauts displayed their exercise equipment and a【小题5】(special) designed spacesuit, and conducted demonstrations on physical phenomena in microgravity, such as “disappearing buoyancy (浮力)”and a   “water ball”. Ye,【小题6】is on his first spaceflight, showed how he rotated his body in the 【小题7】(weight) environment and answered questions from students during the lecture.

Millions of primary and middle school students across China watched【小题8】hour-long televised event hosted by the China Manned Space Agency, the Ministry of Education and other government departments. Besides, a total of 1,420【小题9】(invite) students were present at “ground class venues”, with some 【小题10】(take) part in video chats with the crew members during the lecture. Vincent Wong, deputy principal of Hong Kong’s Pui Kiu College, said the event gave students an opportunity to communicate with the astronauts while arousing their interest in space and science. It also helped enhance their sense of national identity as they saw the rapid development of our country’s space technology.