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Yang Zhenning, a world-famous physicist and China's first Nobel laureate, passed away in Beijing at the age of 103. Tsinghua University, where he worked as a professor, will never forget him.

Born in Anhui in 1922, Yang studied at many top schools. He went to the US for further studies in 1945 and got his PhD there. In 1957, he and his colleague Tsung-dao Lee won the Nobel Prize in Physics. They won it for their theory about "parity non-conservation" in weak interaction.

Yang made great contributions to modern physics. His "Yang-Mills theory" is one of the most important achievements in physics, comparable to Einstein's famous theories. He also loved his motherland deeply. In 1971, he was one of the first overseas Chinese scholars to visit China.           ▲         Later, he helped develop science and education in China: he advised on national science projects, raised funds, and sponsored nearly 200 Chinese students to study in the United States.

Yang spent his last years working at Tsinghua, helping develop basic science and train young talents. His life was a legend of loving science and his country.

One sunny day, while walking in the forest near his home, Leo3 across an old, dusty book hidden under a large tree. The cover was worn out, but the title shone4: "The Secrets of the Number 7." Driven by curiosity, Leo5 the book and discovered it was filled with magical spells and puzzles, all about the number 7.

The first spell read: "6 you say the magic words ‘Seven brings wonders', and you will discover what you are looking for." Leo said the words in a low voice, and to his7, a hidden road appeared, leading to a treasure box filled with sparkling jewels and golden coins, placed in sets of seven.

Realizing the power of the number, Leo decided to use his magic8. He shared the treasures with his village, making sure that every family9 seven gifts, bringing happiness and wealth to all.

From that day on, Leo was known as the Boy of the Number 7, and his village became rich, thankful for his10 with the simple number seven.

Later that day, Tom asked his friends, classmates and so on. Tom also asked Mr Smith. Last year Mr Smith 2 as Tom's maths teacher. He said it was 512.

The next day, in Mr Green's class, Tom told him Mr Smith's answer. Mr Green didn't change his mind. 3 the class was over, Tom went to Mr Smith's office.

A few minutes later, Tom returned with Mr Smith and four students from 4 class. And the classroom became 5 interesting place. All the students felt much 6. They looked forward to seeing a heated discussion between the two teachers.

Mr Smith and Mr Green started their argument. They tried to show their answer to the class with 7 examples. At first, everyone sat down and listened 8. Soon, Tom and some students began standing together around them. Later, all the students showed their support for different teachers and became two teams. They waited 9 the answer to the maths problem.When the school bell rang, Mr Smith and Mr Green still couldn't solve the problem. "Why not ask all the maths teachers at school to join us and have a meeting for it?" Mr Smith said. "Let's 10 it at lunchtime," Mr Green replied. "Great!" all the students shouted.

内容包括：

1.描述深圳秋天天气和城市环境的特点（例如：公园、绿道、天空等）。

2.介绍一项你在秋天最喜爱的户外活动（例如：去公园散步、在绿道骑行、与朋友在草地上野餐等），并说明原因。

3.谈谈你对在深圳这座"公园城市"中生活的感受或期待。

参考词汇：

天气：weather 环境：environment 绿道：greenway 户外活动：outdoor activity 与朋友在草地上野餐：have a picnic with friends on the grass

要求：

1.词数：60-80词；

2.文中不得出现真实姓名和校名；

3.内容连贯，逻辑清晰。

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