There have been reports that in some areas.为什么这加个that

题目

There have been reports that in some areas.为什么这加个that
Crushed together,piled into improbable stacks,stuck in fields or poking out of ditches,thousands of cars still lie where the surge of water left them.Each has to be checked by the rescuers in case there's a body inside.There have been reports that in some areas,the teams have been running out of bags to put corpses in.
整段话。顺便可以帮我研究第一句话得用法吗？都翻译不来。好难。

答案

这里的that是个宾语,代表的是个具体的事件
这句话的意思是 他们已经在某些地方报道了这件事（that）