How to write a composition if aliens come to me?

One afternoon, the cool breeze stroked the grass outside the house, and the sun was still red and shining with seven colors. Several children who are playing imitate the police, and everything seems so harmonious. I sat in the house and enjoyed milk to my heart's content.

After a while, the sun gradually fell asleep, as if it was time for the moon to be on duty again. I think: time won't pass so fast! I looked back at the clock and thought, why is it dark before 4 o'clock? I ran out of the house and looked at the gloomy and sometimes bright sky. I can't help showing a trace of confusion. Suddenly, the earth shook violently, as if the "Titans" were patting the earth with their hands, and a dazzling light spread all over the mountains and plains. Seeing this huge scene, I hid under the table in the house in panic, but I still couldn't help looking out of the window.

I saw a huge flying saucer land more than ten meters outside my house, and then a silver-white arch bridge extended from the center of the flying saucer. An alien walked out of the flying saucer, with a head width of about two and a half inches and a height of about one and a half meters. It has no ears and hands like chicken feet. Its clothes are very strange, and the whole body is surrounded by blue light, which is translucent. I rubbed my eyes. I couldn't believe that whispering would confuse scientists.

It flew into my house and stopped in front of me, but my body couldn't move at all. I saw him wave, so I went back to the table. It is doing something with its hands up and down, and then points to the milk on the table. A miracle happened. There is a clear handwriting on the milk, which reads: In order to establish friendship with human beings, I want to give you a gift-moral powder. Now I still don't understand how. Just when I was puzzled, suddenly, two young men on motorcycles flew past me, grabbed an aunt's handbag in front of me, grabbed it abruptly and prepared to escape. Just then, the aliens jumped up and sprinkled a layer of shiny powder on the heads of the two young people. Something unexpected happened. The two young men stopped the car, respectfully apologized to the aunt and returned their wallets to the aunt. The aliens told me. That kind of shiny powder is moral powder, which can make people have a sense of morality, make people be charitable and not do bad things. So, I became friends with aliens and sprinkled moral powder on the street. As long as people are stained with moral powder, they will become more kind and lovely.