demonstrate 的音標是[d??mɑ?ns?te?t]，基本翻譯是“展示；演示；證明；說明”。速記技巧是將其分解為幾個部分進行記憶，如de-mo-n-strate。de-表示“去掉”，mo-n-strate表示“展示”，整體記憶就是去掉后剩下的部分進行展示。

英文單詞“demonstrate”的詞源主要有三個：詞根“demonstr” (表示“展示”或“演示”)，詞頭“de-” (表示“否定”或“向下”) 和詞尾“-ate” (表示“做”)。

變化形式：過去式為“demonstrated”，過去分詞為“demonstrated”，現在分詞為“demonstrating”，其中綴和原詞根的含義保持一致。

相關單詞：

- demonstrate + knowledge = demonstrate knowledge (展示知識)

- demonstrate + point = demonstrate point (闡述觀點)

- demonstrate + skill = demonstrate skill (展示技能)

- demonstration + speech = speech demonstration (演講展示)

- demonstrate + effect = demonstrate effect (展示效果)

- demonstrator + car = demonstrator car (示范車)

- demonstrative + pronoun = demonstrative adjective (表示強調的形容詞)

- demonstrate + law = decentralized demonstration law (非集中化的示范法)

- demonstrate + theory = deductive demonstration theory (演繹示范理論)

以上單詞都是與“demonstrate”相關的，它們在不同的語境下有不同的含義和用法。每個單詞都體現了其詞源的三個組成部分，即詞根、詞綴和詞尾。這些單詞的使用和含義也反映了英語詞匯的多樣性和靈活性。

常用短語：

1. demonstrate one"s ability

2. demonstrate one"s knowledge

3. demonstrate a skill

4. demonstrate a point

5. demonstrate a theory

6. demonstrate a hypothesis

7. demonstrate a concept

例句：

1. He demonstrated his ability to solve complex problems by successfully completing a challenging project.

2. She used her knowledge of language to demonstrate the importance of communication in effective teamwork.

3. The teacher used examples to demonstrate how to solve math problems effectively.

4. The scientist used experiments to demonstrate the validity of his hypothesis about the cause of the phenomenon.

5. The professor demonstrated the concept of cause and effect by using real-life examples.

6. The artist demonstrated his skills by creating a beautiful painting that expressed his message clearly.

7. Through demonstrations, we can show others how to perform tasks effectively and efficiently.

英文小作文：

Demonstrations are an effective way to teach and communicate ideas effectively. They can be used to showcase skills, knowledge, and theories, and they can help people understand new concepts and ideas more clearly.

In my opinion, demonstrations are an excellent way to teach new skills or techniques because they allow students to see and experience the process firsthand. By watching someone else perform a task, students can learn how to do it themselves and gain a deeper understanding of the process involved.

Moreover, demonstrations can be used to communicate complex ideas in a simple and understandable way. By using visual aids, such as diagrams or models, a teacher can show students how an idea or concept works, making it easier for them to understand and remember it.

Finally, demonstrations can be used to promote teamwork and communication among students. By working together to perform a task or demonstrate a skill, students can learn how to work as a team and communicate effectively with each other.

In conclusion, demonstrations are an excellent way to teach and communicate ideas effectively, and they can help students learn new skills, understand complex ideas, and work as a team effectively.