Read the materials below and write as required. In class, the teacher said: "Today we will do a small experiment." Then he took out a bucket filled with stones.

Reference examples

Change and immutability

The world is changing with each passing day, and new technologies are sweeping through the storm of social development. Many things have quietly changed. However, there are also some that have been frozen in the passing time and become unchanging scenery.

What has changed is the advancement of technology, but what remains unchanged is the true love between people. Fu Lei's family letters are still regarded as classics. Every sentence from the heart is full of love for the children, and the persuasive teachings naturally flow out from the words in the family letters. "Reading is enough to make you wise, enough to be happy, and enough to become a talent." These famous sayings also inspire us. Technology has developed, and family letters have gradually been replaced, but our affection remains unchanged. A carefully written text message, a cordial greeting, and a happy holiday card are all reflections of sincerity. These tangible feelings cannot be replaced by new technology. "There are close friends across the sea, but we are neighbors as far apart as the world" is no longer a distant thought. A single phone call can connect friendships that are far apart. The true love between people will last forever in a rapidly developing society.

What has changed is the increasingly noisy environment, but what remains unchanged is the innocence in people’s hearts. Social development has brought about bustling cities, and the quiet atmosphere has been replaced by hustle and bustle, but Shi Tiesheng always maintained his inner innocence. He rolled his wheelchair to the quiet altar of earth, isolated from the noise outside, and felt life with his heart. When many people are rushing for fame and fortune, he looks at the world with a sincere heart like a child, forgets the physical pain, writes with heart, and leaves readers with popular articles that move and support us. The country has become rich, but our hearts cannot change. Diligence and frugality cannot turn into extravagance and waste, being down-to-earth cannot turn into being ambitious, and sticking to oneself cannot turn into playing both sides. The environment can change, but the innocence in the heart cannot.

What has changed is the growing fame, but what remains unchanged is the simplicity of not forgetting the roots. Warm sunshine scattered on Zhu Zhiwen's dark face, and his thick smile lit up the sky. "Brother Big Yi" Zhu Zhiwen gradually became known to everyone for his outstanding performances on the stage, and his fame increased. However, he had no "star appearance" at all and devoted himself to implementing "grassroots" culture to the end. A reporter went to interview him, but he had already gone to his hometown to do farm work. The sweat of his hard work flowed on his happy smiling face, and many people were moved by it. Yes, why should we change because of changes in the outside world? Isn't "not happy with things, not sad with yourself" the most beautiful attitude in life? No matter how the environment changes, we must not forget our roots and change our own wishes.

Life is getting better and better, technology is becoming more and more developed, and more and more things are changing. But there are some things that cannot be changed. No matter how many times they are washed, they should not change their true colors and remain evergreen forever.

Test question analysis: This is a material composition question. Candidates are required to conceive and conceive based on the materials. The center reflected in the materials is the source of the center of the article. Writing cannot be separated from the center revealed by the materials. Therefore, the material composition is also called "destiny composition", that is, the question writer has already put the "basic" of the composition. "Centre (meaning)" is provided to the candidates. When reviewing the questions, they should focus on the key sentences and think about them. According to the content characteristics of the material in the question, the "refining center method" can be used. This is the most common and safest way to review topics and ideas when writing material compositions. First, read the material carefully, grasp key phrases, or analyze the character activities and plot development, extract a center from it, and use it as the main theme of the article. This will definitely make the article written both relevant and in-depth.

This material can be roughly conceptualized from the following aspects: 1. There is no end to learning; 2. Change and unchanged; 3. Process and results, methods and results; 4. The charm of thinking and flexibility of thinking; 5. Relative space and absolute space, etc. It can be written as a thoughtful argumentative essay or as beautiful prose.