想象的作文在英语中通常被称为" imaginative writing"或"fiction writing"。这类作文允许作者创造虚构的场景、人物和事件，以表达思想、情感和观点。以下是一个关于“想象中的六一”的英语作文示例：

Title: Imagine a Children's Day

Children's Day is finally here, and it is our holiday. But imagine the children also accompanied by their imagination, everybody is more excited. On this special day, the white clouds float over the blue sky, and the sun shines brightly, casting a warm glow on the earth.

The children are filled with joy and anticipation as they wake up on this day. They can't wait to embark on a journey of imagination, where anything is possible. They can fly kites high in the sky, explore magical forests, or even have a tea party with fairies.

As they spend the day playing and laughing, they learn important lessons about friendship, kindness, and the importance of imagination. They discover that with a little creativity and a lot of heart, they can create their own worlds and experiences.

When the sun begins to set, the children gather together to share their favorite moments of the day. They laugh, they cry, and they hug, knowing that this day was truly magical. And as they drift off to sleep, they dream of all the incredible adventures they will have in the future.

In conclusion, Imagine a Children's Day is not just a holiday, but a celebration of imagination and creativity. It is a day where children can explore their dreams and discover the endless possibilities that lie within their hearts.