阅读短文，根据短文内容填空。 

About 5 o'clock in the afternoon, the sky turned black. There were many dark（黑）clouds and it started to blow. After a little while it began to thunder（雷声）and the lightning（闪电）appeared. I was frightened（害怕）. It seemed（似乎）that the sky was very angry and it wanted to punish（惩罚）the people on the earth（地球上）. And then it rained heavily（大雨）. It looked like there were someone（有人）pouring（浇）water in the sky. The rainstorm lasted fifty minutes.