黄河上游沿岸的兰州、宁夏地区，自古以来就是我国灌溉农业比较发达的地区。下图是古代灌溉使用的一种自动提水工具，提水后再通过水道流入农田。读图，当黄河的宁夏河段出现凌汛时（    ）

    Tom was a farmer. He worked on the farm all day，but sometimes he went to the town market to sell fruit and vegetables. One day, a terrible sound attracted his attention in the town market. He saw a young bull for sale. The bull was white and yellow. It was looking at Tom in fear. Tom walked up and touched its head gently. Just at that time they both seemed to have known each other for a long time. How amazing！Tom bought it at once and called it Amba.

    From then on ， Tom and Amba got on well with each other. But some friends told him that it was dangerous to have such a close relationship with an animal.

    One afternoon， Tom was walking through the forest with Amba. Suddenly， Amba stopped walking and kept pushing Tom with its head. Tom was very surprised and looked around. There was a big snake in front of him. It was beautiful but poisonous. Quickly Amba stepped on the snake's tail with its foot and at the same time Tom picked up a stick and hit the snake's head heavily. Soon the snake died.

    Tom was very grateful for Amba's help. When people heard this, they were shocked at the bull's expression of love for Tom. But for Tom, Amba was not a bull but a member of his family.

清平乐·检校山园书所见

辛弃疾

连云松竹，万事从今足。拄杖东家分社肉，白酒床头初熟。

西风梨枣山园，儿童偷把长竿。莫遣旁人惊去，老夫静处闲看。