What Am I?

I was born （出生）in a small river. When I was young, the river was my home. I did not know my father or mother, but I had many, many brothers and sisters. I swam and played with them.

At that time I did not look like my father or mother. I had no legs, but I had a long tail（尾巴）.So I looked like a fish.

Then my tail became shorter and shorter（变得越来越短）.And now I have four legs and a very short tail.

I know I’m going to have no tail at all soon（不久）. I’m going to be like my father and mother. Then I’m going to jump out of the water. I’m going to live on the land（陆地）and in the water too. I’m going to eat a lot of insects（昆虫）---a lot of bad insects.

What am I?

Mary and Peter were having a picnic near a river when Mary noticed something flying overhead.“_____，” she shouted to her friends. “That's a spaceship up there and it's going to _____ here.”

Frightened(吓唬) by the strange silver colored spaceship, _____ of the young people got in their _____ and drove away quickly. Peter _____ Mary and always stayed close to her. They, more _____ than frightened, watched the spaceship land, saw a door open. When nobody _____， they went to the spaceship and looked into. In the center of the floor _____ was a pile of food. Peter followed Mary into the spaceship and didn't _____ the door close behind him. The temperature fell quickly and the ______ young people lost consciousness(知觉)．

When they woke up, they were ______ to see that they were back by the river ______.The spaceship had gone. Their car was nearby.

“What ______？” said Mary.

“Don't ask me. Perhaps we had a ______.” Peter said slowly. “Did you...did you see a spaceship？”

“Yes，” said Mary. “Oh, Peter, we ______ have seen a UFO coming from another world.”