Fly是一个动词，表示“飞行”。过去式为“flew”，意为“飞行过”。以下是一篇关于飞行的过去式英文文章：

Yesterday, I went to the park and saw a bird that flew high in the sky. The bird flew gracefully and soared through the air with ease. I watched as it flew over the trees and disappeared from sight.

As a child, I always dreamed of flying like a bird. I would run around with my arms stretched out, pretending to fly through the clouds. I imagined what it would feel like to soar through the air, feeling the wind rushing past my face and the freedom to go wherever I wanted.

When I grew older, I had the opportunity to fly on an airplane. It was an incredible experience to see the world from above, looking down on the tiny buildings and cars below. I felt like I was flying like a bird, except I was in a metal tube with wings.

Despite the marvels of modern technology, there is still something magical about the act of flying. Whether it's a bird in the sky or an airplane in the clouds, the feeling of freedom and adventure that comes with flying is unparalleled. I may never be able to fly like a bird, but I will always cherish the memories of the times I flew in an airplane, soaring through the sky like a modern-day adventurer.