“典范英语7” 是一套针对英语学习者设计的教材，通常用于初中阶段。关于“海象参加表演”这个说法，可能是指某个英语故事或课文中的情节，比如：
例子：
Title: "The Elephant at the Performance"
Content:
In a small town, there was a very shy elephant named Leo. One day, he decided to join a performance. He was nervous but tried his best. The audience was surprised when he performed a dance. Everyone laughed and cheered. Leo became popular in the town.
如果你想写一个英语小故事，可以参考以下结构：
Title: The Elephant and the Performance
Paragraph 1:
There was an elephant named Leo who was very shy. He never dared to perform in public.
Paragraph 2:
One day, Leo heard that there was a performance in the town square. He decided to join it. He practiced for hours, but he was still nervous.
Paragraph 3:
On the day of the performance, Leo stepped onto the stage. He felt scared, but he remembered his teacher's words: "Practice makes perfect."
Paragraph 4:
When he performed, the audience was amazed. They laughed and cheered. Leo felt happy and proud. From that day on, he became a popular performer.
如果你需要我帮你写一个完整的英语短文或段落，可以告诉我具体要求，比如：
- 词数要求
- 是否需要语法纠正
- 是否需要翻译成中文
- 是否需要加入特定词汇或句型
告诉我，我可以为你定制内容！