The writing skills for a sad moment composition are as follows:

1. Material selection and conception: When writing a sad moment composition, material selection and conception are crucial. First, choose an event or situation that is real and can arouse readers' excitement. The event or situation should reflect a poignant theme and connect with the reader's life experience. Secondly, after determining the topic, it is necessary to clarify the central idea of ??the article, that is, the emotions and opinions expressed.

2. Describe emotions and details: Sadness is an emotion that needs to be expressed through details. When writing, pay attention to depicting poignant details, such as the characters' demeanor, language, behavior, etc., as well as the atmosphere and scenery of the surrounding environment, etc. These details can allow readers to feel the sad emotions immersively and enhance the appeal of the article.

3. Use rhetorical techniques: Rhetorical techniques are an important means of expressing emotions. When writing about a sad moment, you can use metaphors, personification, parallelism and other rhetorical techniques to vividly express sad emotions. For example, you can compare sadness to a heavy burden, or personify sadness to express the sadness more vividly.

4. Pay attention to the structure of the article: The structure of the article is the key to ensuring that the article is clear and organized. When writing a composition about a sad moment, you can use structures such as cause and effect, total score, comparison, etc. to organize the article. For example, you can use a total score structure, first summarize the sad emotions, and then elaborate on the causes and manifestations of sadness from different aspects.

5. Concise and clear language expression: Language expression is the basic skill of writing. When writing a composition about a sad moment, you should pay attention to the simplicity and clarity of language expression. Avoid using complex sentence structures and cumbersome vocabulary, and try to use simple and easy-to-understand language to express emotions and opinions. At the same time, pay attention to the accuracy and standardization of language to avoid grammatical errors and typos.

6. Emotions are sincere and natural: Emotions are sincere and natural is the key to writing about a sad moment. When writing, express your emotions and opinions truthfully without exaggeration or false exaggeration. At the same time, attention should be paid to the coherence and naturalness of emotions, so that readers can feel the flow and development of emotions.

An example of a sad moment is as follows:

1. Sadness is an indescribable emotion, which may originate from various situations in life. Sometimes it may stem from seeing other people's misfortune, and sometimes it may stem from one's own helplessness. The most poignant moment for me came from a travel experience.

2. It was my first time traveling alone, and the destination was Dali, Yunnan. I have always had an endless yearning for Dali, a place with a rich cultural heritage. However, when I actually arrived in Dali, I felt a deep sense of loss.

3. I walked in the alleys of the ancient city, looking at the ancient buildings around me, and my heart was filled with awe of history. However, I found that people around me were busy with their own things and they seemed to have no time to appreciate these beautiful scenery. There are even some people, who I think are local residents, setting up stalls on the roadside to sell their products.

4. At that moment, I felt sad. I realized that although Dali is a place with a long history and beautiful scenery, people living here need to face the pressure of reality. They need to make a living and support themselves and their families. And these beautiful scenery, for them, may be just a part of life, not the whole of their life.

5. I feel sad because I see how difficult it is for these people. Their lives may be full of difficulties and challenges, but they still persevere and work hard for life. This kind of persistence and courage makes me admire and admire.

6. Looking back on that trip, I deeply felt that life is not easy. Everyone has their own pressures and difficulties in life, and we need to learn to understand and respect them. At the same time, we also need to learn to cherish our lives, our families and friends. Because life is short, we need to use our time and energy to create a better future.

7. The sadness at that moment made me understand the meaning and value of life more deeply. I believe that in the days to come, I will work harder to live and create a better future.