Many people say that they have seen flying saucers（飞碟） in the sky. 1 can these things be?

    Some people think that they are spaceships from other planets. Doctors 2 that perhaps they are only a weakness of the eyes. It is possible that they are our own planes 3 very high. Or are they birds with the sun's light on them?

    But some people say that they have seen them 4. They have seen beings（人） get off them and walk around. They have 5 to those beings, sometimes in English. People have 6 photos of flying saucers and of these beings. We have seen the photos, but sometimes the people had to take them in a 7. Children have seen flying saucers, and even dogs have seen them. Perhaps we do not think that the 8 of children, or dogs are important. But school-teachers have 9 seen them and Air Force officers and 10 policemen. Must we not listen to these people?

    The undersea world is very beautiful. Now more and more people want to 1 in the water to find the secret there. Scuba diving (水肺潜水) is a new sport today. It can take you into a wonderful undersea world.

    If you are lucky, you will 2 find many strange animals in the sea. Some are as 3 as a school bus. Some are so tiny that you may not  4 them at all.

    During the day, there is enough 5. Everything is blue and green. When fish swim nearby, you can catch them with your hands. When you have bottles of air on your back, you can stay in 6 water for a long time. However, you can't dive too deep. And you must be very 7 when you are in deep water, because something dangerous may happen unexpectedly.

    The deep sea is not an easy place to live in. It's cold, and it's 8 too. The deeper it is, the less sunlight there is. At about 3,000 feet, there is no light at all.

    Besides the cold and darkness, deep-sea animals face a third 9 —other animals. Animals eat! Many animals eat plants. However, some animals eat 10. This means these sea animals have two big jobs. They need to find animals as food, and they have to try not to become other animals' meal.

    What is your favourite colour? Do you like yellow, orange and red?

    A yellow room makes us feel1and more comfortable than a dark green one; and a red dress brings warmth and gladness to the saddest winter day. Light and bright colours make people not only happier but2more active. It is a fact that factory workers work3, harder and have fewer accidents4their machines are painted orange rather than black or dark gray.

    Remember then that if you feel low, you can always brighten your day or your life with a new shirt or a few colourful things. Remember also that you will know your friends better when you5what colours they like and dislike. And don't forget that anyone can guess a lot about your character when you choose something in different colours.

The Mogao Caves are a very special place in China, which are located in Dunhuang, Gansu Province. The Mogao Caves are thousands of years old and were listed as a world heritage (遗产) site by UNESCO in 1987.

Many people, including archaeologists ( 考古 学家) and researchers, work hard to take care of the Mogao Caves and learn more about them. Fan Jinshi is one of them.

Fan was born in Beijing on July 9, 1938. Her father was a graduate of Tsinghua University and had a strong interest in Chinese classical art and culture.

Influenced by her father, Fan liked visiting museums when she was in middle school. With the great love of Chinese culture, she studied in the archaeology department in Peking University and graduated in 1963. Then she started working at Dunhuang and has worked there ever since. She spends almost 60 years taking care of Dunhuang. People call her the " Daughter of Dunhuang".

On May 4, 2023, "Daughter of Dunhuang" Fan Jinshi returned to Peking University and brought back 10 million RMB donations to set up the Fan Jinshi Education Fund (基金) to    ▲  .

"Money made should be spent in the right way. People cannot only think of themselves," she said. "Hopefully the setting of the Fund can help Dunhuang studies at the university, so it can raise cultural confidence and strength. "

 The Palace Museum, a widely visited cultural landmark in Beijing, announced new visiting rules on Thursday. These rules include a ban(禁令) on"interviews" and"commercial(商业的) photography". Without the museum' s permission, activities such as performances, on-site surveys and religious events are not allowed. The new rules will come into effect on June 30. Those who seriously break the rules will be listed as"uncivilized tourists".

 Fang Qiongqiong, a cultural sociologist in Shanghai, said these rules were made to prevent chaos(混乱) and improper behavior at historical sites like the Palace Muse um. She added that balancing the social and cultural role was a difficult task.

 Efforts to stop improper behavior at popular tourist spots in China have increased. The Palace Museum' s ban on commercial photo shoots is a noticeable change. A staff member said commercial photo shoots were often seen at the museum and sometimes put off the closing time.

 The museum's new rules, especially the ban on photography and filming, have become a hot topic on Sina Weibo. Netizens have different opinions. Some wonder if online streaming will also be banned. One netizen supports the new rule, saying the age of short videos is excessive and people can do crazy things in public places to attract attention.

 According to data, the Palace Museum welcomed 30,000 visitors on January 1, one of its busiest days. Tags like"Palace Museum' s autumn view" and"snowy Palace Museum" are popular on The Little Red Book. Chen remarked that the new ban might reduce the museum's exposure(曝光) on the Internet.

 The notice also said day tickets would no longer be sold at the museum entrance. All visitors must make reservations in advance with their real names.