How do you keep cool during summer? Air conditioners or electric fans are good tools in modern society. But ______ that, people could only use fans.

Over 3,000 years ago, fans began to be used. They were made of feathers (羽毛), bamboo or silk. They came in different ______, including round and square.

Later, with the invention of paper, folding (可折叠的) paper fans became popular during the Song Dynasty. There are usually beautiful ______ on fans. Some are landscapes (风景). Others are flowers and animals. Moreover, many great people including Su Dongpo, a poet of the Song Dynasty, and Tang Yin, scholar (学者) and painter of the Ming Dynasty, once painted their masterpieces (杰作) on fans. This made fans not only ______ tools in daily life but also great artworks.

So, with its value of beauty, people take fans as a symbol of status (地位). That’s why in old China, emperors and scholars often held fans.

Today, fans are also great collectors’ items (藏品) and gifts. On the opening ceremony of the 2008 Beijing Olympic Games, folding fans were ______ to leaders and officials (官员) of other countries. While they were ______ fans to get cool, they were also experiencing Chinese culture.

Chat GPT, a smart AI chatbot (聊天机器人) tool, has swept the education world in the past months. According to a US survey (调查) of more than 1,000 students, over 89% of them have used Chat GPT to help with their ________ . Developed by US company Open AI, Chat GPT is a ________ tool. You can ask it to write stories and emails, create recipes (食谱), translate languages, and answer all kinds of ________ .

Some ________ in the US, Australia and France have banned (禁止) the use of Chat GPT: CNN reported. “It does not ________ students’ independent (独立的) thinking and skills, which are ________ for academic (学术的) and lifelong success,“ said Jenna Lyle, the secretary of the New York City Department of Education.

However, not all ________ say “no” to Chat GPT. Bhaskar Vira, the headmaster for education at the University of Cambridge in the UK, said that bans on AI software (软件) like Chat GPT are not sensible (明智的). “We have to know that AI is a just ________ people will use,” he told the school newspaper of the university. “What we need to do is to adapt (调整) our learning, ________ and exams. That way, we can be ________ while using the tools”.

Do you know something about the usage of computers? People like scientists, teachers, writers and even students use computers to do nearly ____ work. But more than 30 years ago, ____ couldn't do much. They were very big and expensive. Very ____ people were interested in them and how to use them. Today computers are smaller and ____. Since they are useful, many people like to use them.

Computers ____ very important because they can work ____ than people and make fewer mistakes. Computers can ____ people do a lot of work. Writers use computers to write; teachers use them to teach; students use them to study. Computers can also remember what you put ____ them. Computers are very ____. They are our good friends. Do you ____ a computer?

Only we use computers correctly, can we get knowledge as much as possible.