A dinosaur came to a city.He thought the city was the most busy and bustling place he had ever been to.He was walking on the road "Pit-Pat-Pit-"
But his body was too large.The traffic was stopped by him.The cars were lining up.Then he walked on the railway.He was so heavy that the rails were creaking under his feet……

大恐龙来到了城里，它觉得这个地方比它以前到过的任何地方都热闹。大恐龙“啪哒啪哒”地走在马路上，可是它的身体太大，交通给堵塞了，汽车排起了长队，响起了喇叭。

大恐龙“啪哒啪哒”地走在铁路上，大恐龙的身体太重，铁路被踩得“吱哩吱哩”直响，火车也被震得跳起了舞。

大恐龙“啪哒啪哒”地走在胡同里，它闻到了人家厨房里飘出的阵阵香味，忍不住把头伸进窗户，可是大恐龙脖子太长，把人家的房顶都掀翻了。大恐龙心里真难过。城里的人感到，大恐龙给他们带来了危险。

这时一个聪明的小孩说：“大恐龙走了许多路，一定是饿了。”他带着许多小朋友在马路上撒青草，大恐龙沿着这条青草路边吃边走，吃饱了就在十字路口打起了瞌睡。马路被堵住了，汽车从大恐龙身上、身下开过，大恐龙变成了立交桥。大恐龙身上痒痒的，睁开眼睛一看，想不到自己还有这么大的用处呢!大恐龙觉得自己应该为城里人多做一点事，因为它是多么喜欢这个地方啊!

一辆辆大卡车、面包车、小汽车从大恐龙身下开过去，一辆辆自行车、摩托车、三轮车从大恐龙身上骑过去，一群群大人、小孩从大恐龙身上走过……城市的马路畅通了，大家都说，大恐龙立交桥真好!