潍坊北京现代4s店地址:having suffered such heavy pollution already, it may now be too late to clean up the river.

来源：百度文库编辑：中科新闻网时间：2024/05/06 07:16:00

一般使用分词要看它和主语的关系，也就是说是主动还是被动。但这句话用having suffered 是什么原因

我认为：主语it 是代表river 的，而river 与suffered polluted之间是被动的关系。再加上完成时态就成了： having suffered 了
有一个很好的句子就是：Seen from the mountain ,the village is very beautiful!
从小山上看去，这个村庄美丽极了！

所以有的时候多记些，这样的句子对做题是很有帮助的！

it may now be too late to clean up the river本该是it may now be too late FOR US to clean up the river.

having suffered是一个伴随状语,它表示river已经而且现在仍然在受到污染.就是这个意思.

有遭受如此的重污染已经，它现在可能是太晚到干净的在河上面。

应该是这样

就是已经被这么严重得污染了，表已经被污染了。

这是完成时

having suffered such heavy pollution already, it may now be too late to clean up the river. I have to accept what I suffered so & such thankyou for having me 英文having caused Thanks for having me. having a picnic such....as 和such...that 的区别 Such beautiful days in such courses