his father is sitting at the desk,reading a story-book.中为什么用

his father is sitting at the desk,reading a story-book.中为什么用reading 不用is reading 或 read

19720705 1年前已收到2个回答举报

东来佛幼苗

共回答了15个问题采纳率：86.7% 举报

用reading表示伴随状态,也就是说reading这一动作伴随着sitting,他们同时发生,句意是：他的爸爸坐在桌子旁,正看一本故事书.

1年前追问

19720705 举报

为什么不用is reading，这本来是一个选择题，有reading ,read, is reading这几个选项，能解释的更详细一点吗？老师让我们解释。急啊！！谢啦啊

举报东来佛

用is reading的话，就另外成句了，前面要加主语，以及连接词。

destiny1114 幼苗

共回答了1个问题举报

因为前面有is 中间用逗号时态一致 reading 正解

1年前

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你能帮帮他们吗

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