八

We saw a big snake sleeping near the fire.

英语中表示感官的动词，例如see，here，feel等动词后可以接动词的ing形式，表示"看见，听到，觉得某人或物在做某事"，例如:

I can hear the children singing in the classroom，我能听见孩子们在教室里唱歌。

I looked out of the window and saw some boys playing soccer in the playground, 我往窗外望去，看见一些男孩在操场踢球。