第13课（1分钟）（93）

Lesson Thirteen

A Crow Drinks Water

1. A crow is thirsty, she is looking everywhere for some water.

2. 2.The crow spots a bottle with water in it. 

3.However, there is not much water in the bottle, and the mouth of the bottle is too small for crows to drink.

4.What to do?

5.The crow finds that there are many small stones nearby, and she has an idea.

6.The crow puts the pebbles into the bottle one by one. The water level in the bottle gradually rises, and she has a good drink.