题目：
1 四个孩子刚出校门回家
2 一卡车经过，车速较快，掉下几只西瓜
3 一骑车人倒下，身边有血
4 孩子们有的打110，有的打120，有的保护现场
5 他们向警察陈述经过，救护车把伤者送医院
参考作文
Lat Thurday afternoon, four tudent were on their way back home.
上周四下午，四个学生正在他们放学回家的路上。
Suddenly they aw a truck coming round the corner at a high peed and ome watermelon fell off. At the ame time, a middle-aged man on a bicycle fell to the ground. Blood came from hi body.
突然，他们看到一辆卡车从拐角处快速地开过来，几个西瓜从上面掉下来。同时，一个骑车的中年男子摔倒在地，身上流血。
One of them called the policeman, one dailed 120. And the other were taking care of the cyclit. Soon the police came and they reported what they had een and an ambulance took the cyclit to the hopital oon.
他们当中其中一人拨打电话报警，另外一人打120，剩下的两人则照顾伤者。不一会儿，警察来了，他们向警察报告了事情的经过，然后救护车把伤者送进了医院。