1．　　Number sense is not the ability to count. It is the ability to recognize a change in number. Human beings are born with this ability. (1)      , experiments show that many animals are, too. For example, many birds have good number sense. If (2)       nest has four eggs and you remove one, the bird will notice. However, if you remove two, the bird generally leaves. This means that the bird (3)       the difference between two and three.
　　Another interesting experiment showed a bird's (4)       number sense. A man was trying to take a photo of a crow (乌鸦) that had a nest in a tower, but the crow always left when she saw him coming. The bird did not (5)       until the man left the tower. The man had an idea. He took another man with him to the tower. One man left and the other stayed, but they weren't successful in fooling the bird. The crow stayed away (6)      the second man left, too. The experiment was (7)       with three men and then with four men. It was not until five men went into the tower and only four left that they finally managed to take a photo.
　　How good is a human's number sense? It's not very good. For example, babies about fourteen months old (8)       notice if something is taken away from a small group. But when the number (9)      three or four, the children are often very confused.
　　It seems that number sense is something we have in common with many animals in this world, and that our human ability is not much (10)       than a crow's.

2．　　Issac Newton was a quiet boy. Having lost his father before he was born, he grew up with his grandparents. At 17, soon after he finished schooling, his mother decided that he would be trained to take care of their family farm. But instead of watching sheep, young Newton would spend his time making small tools. His head teacher saw the genius in him and asked his mother to send him to the university. Newton set out for Cambridge in June, 1661, and began his career in scientific research.
　　Newton was always trying to understand and explain a lot of things in nature. To test a question about colors, he would stare at (凝视) the sun with one eye until all the colors changed. As a result, he had to stay in the dark for several days before his eye returned to normal. Newton was the first to show us that white light is made up of colors mixed together. He was also the first person to understand the rainbow and explain how it forms.
　　A story goes like this:One day, an apple fell on Newton's head, and it was then that Newton realized that the apple fell towards the Earth and didn't go anywhere else. He thought to himself, "How did this happen?" After doing some experiments, he later knew all objects (物体) always fall towards the Earth's center because the Earth attracts them. He realized that every object in the universe attracts every other object towards it. Then Newton discovered the law of universal gravitation.
　　Newton was an English physicist, mathematician and astronomer. Because of the significant work Newton has done, he is widely considered as one of the greatest scientists of all time.

3．　　All of us may have experienced embarrassing moments. It could have been the time when you pronounced a simple word wrong in class, wore your T-shirt backwards, talked about someone else without realizing that they were right behind you, or secretly tried to take a picture of someone while the flash was on.
　　Though these embarrassing moments don't harm us a lot, they come back from time to time and make us feel upset. Even if these moments may have faded after some time, we would always remember the feeling of strong embarrassment. In fact, these feelings may last for years. When these kinds of feelings return, they are known as a "cringe attack (羞愧综合征)".
　　I personally get a quite uncomfortable feeling when I think back on a party my parents took me to when I was younger. I ate a bowl of strawberries by myself. My parents shouted at me – in front of everyone — for being so selfish. From then on, every time I put a strawberry into my mouth, my brain just throws that embarrassing scene back.
　　Why do these "cringe attacks" still pop up in our daily lives even though the actual events happened weeks, months, or even years ago?According to researchers, our brains give special attention to feelings that can be easily noticed. The stronger the feeling is, the stronger the memory will be. If you have a highly embarrassing or highly emotional (情绪激动的) moment, no matter what it is, your brain will try to catch it.
　　So how can we deal with this?Well, we can start by trying to be more objective (客观的)about our past selves. Consider that you are not alone in your embarrassment — everyone fails or makes silly, embarrassing mistakes. Instead of just trying to forget what we did, we should try to accept who we were at that moment and think about how we can change for the better.

4．　　To many people, art is a human expression of creativity. But in recent years, you may have read news about AI creating its own art. Some people worry that AI might replace artists someday.
　　However, this worry seems to be unnecessary, at least for now. Many artists today are turning AI into a useful tool. Instead of replacing artists, AI is bringing artists more possibilities.
　　A piece of music created by AI attracted people's attention. AI was used to turn the novel corona virus into a piece of music based on its protein structure (蛋白质结构): The project was led by Markus Buehler, an American musician.
　　Except for creating imaginative works, AI can also do some easy work for artists again and again. For example, in the comic and animation industries, there are now AI tools that can automatically (自动地) color in black-and-white line drawings.
　　"Although the results require a little clean-up, it could give artists time to experiment, by cutting down the time it takes to color each drawing." said a famous animator.
　　As Peter Ward wrote for The Culture Trip, art of every kind has always been influenced by technological (技术的) development. AI can become a useful tool to bring change to the art world if people don't fear it and try to welcome it.
　　What else can AI do?
　　AI can learn different music styles by analyzing (分析) audio data. It uses this data to create music ranging from pop to jazz and more.
　　AI can learn different styles of paintings. For example, it can learn paintings of impressionism, and then — recreate paintings in the same style.
　　AI can be trained with past text to find trends and write or translate articles and poems. It also can help collect data and facts for news writing.

5．A. Avoid taking tea with medicine.
B. Drinking tea has many advantages.
C. Do not take medicine with cold tea.
D. Drinking tea soon after or before meals is not a wise choice.
E. It is said that Chinese tea was discovered by King Shen Nong.
F. As a scientist as well, Shen Nong was interested in the new drink.
　　Tea is an important part of Chinese tradition. Tea has a very close relationship to Chinese culture. (1)       People say that he lived 5,000 years ago. One summer day, while he was visiting a faraway part of his country, he felt very thirsty. The servants began to make water hot enough to turn into gas for him to drink. Dried leaves from a near plant fell into the water. The king drank some, and found it could make him feel less tired. (2)       And so, tea was created in 2737 BC. The main types of Chinese tea are classified as green tea, white tea, yellow and dark tea.
　　(3)       It makes people feel less tired, clears heat inside the human body and helps people lose weight. As you add a cup of tea to your daily life, please check the following helpful advice.
　　Drink it hot. Tea oxidizes (氧化) quickly, so it is suggested that you drink it hot.
　　Do not drink too much strong tea. It will probably be harmful to your stomach and make you feel sick if you make the tea too strong.
　　The best time to drink tea is between meals. (4)       It may make you lose the wish to eat when your stomach is empty, or cause stomachache when your stomach is full.
　　(5)       It many change the medical result. You can drink tea two hours after you take medicine.
　　Green tea is the best choice for office workers. Why?Because green tea helps stop the bad result of the computer.

6．A. Talk to someone who looks friendly. Sing and dance with several friends of yours. Then you won't feel worried or shy.
B. It's necessary for students to do some housework. We can not only help our parents but also get some important life skills.
C. Make sure you are on time. Wear something suitable and greet your friend cheerfully with a "Happy birthday!", then hand over a gift.
D. Always smile, and you'll look more friendly. Sharing what you know with the classmates can make you closer to people around you.
E. You should first study hard. And then do something relaxing like listening to music before going to bed. That can help you fall asleep easily.
F. Have a nice talk with your parents and tell them how you feel, but don't get angry with them. They read your diary because they care about you.

7．　　Strange things happen when you drive into Green Bank, West Virginia. Radio stations become weaker. Your mobile phone (1)       (become) useless. If you want to make (2)       call, you can use the phone booth at the edge of the town.
　　Going to Green Bank is like travelling back in time. There is no mobile phone service and no Wi-Fi. Welcome to the Quiet Zone.
　　There is a reason for the silence in Green Bank. You'll see it as you drive into the area. It's a radio telescope (射电望远镜) that towers 485 feet above the town. It (3)      (build) in the 1950s. The government created the National Radio Quiet Zone to protect it.
　　The radio telescope is one of the (4)      (large) moving things on Earth. Scientists use it (5)      (search) for radio waves from stars and planets. One of its main jobs is to listen for life somewhere in the universe.
　　Kids in Green Bank aren't (6)      (complete) cut off from the world. Home computers are connected to the Internet, (7)       the service is slow. A video can take several (8)      (minute) to load (加载) .
　　For most people, that's just fine. Green Bank is in the beautiful mountains of West Virginia. Kids spend time (9)      (care) for pets or farm animals.
　　They play sports. And they don't worry (10)       checking social media (社交媒体) 60 times a day. Does that sound terrible or kind of nice to you?

8．近日, 作为中国第一个飞向太空的女航天员, 王亚平于2021 年10月16日顺利进入太空．你作为校园广播台的一名英语播报员, 准备向全校介绍这名女航天员．请你根据以下信息, 写一篇广播稿．

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4. 请将书面表达内容写在答题卡上相应的位置．
提示:时代楷模 Model of The Times 有毅力的 perseverant

On 16 October 2021, a female astronaut, Wang Yaping successfully entered space. ___________