作业帮高中独立主格的问题He seating himself at the desk, his mother began to tell him a story. 他在书桌旁坐好后,他母亲开始给他讲故事.（seating himself at the desk拥有了自己的逻辑主语he,注意是“主格”） = When
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高中独立主格的问题He seating himself at the desk, his mother began to tell him a story. 他在书桌旁坐好后,他母亲开始给他讲故事.（seating himself at the desk拥有了自己的逻辑主语he,注意是“主格”） = When
高中独立主格的问题
He seating himself at the desk, his mother began to tell him a story.
他在书桌旁坐好后,他母亲开始给他讲故事.（seating himself at the desk拥有了自己的逻辑主语he,注意是“主格”）
= When he seated himself at the desk, his mother began to tell him a story.
这两个句子中为什么第一个是seating,另一个就改成seated?
高中独立主格的问题He seating himself at the desk, his mother began to tell him a story. 他在书桌旁坐好后,他母亲开始给他讲故事.（seating himself at the desk拥有了自己的逻辑主语he,注意是“主格”） = When
1.第一个句子是独立主格
主句是his mother began to tell him a story 所以主语是his mother
但是从句主语是HE 即主语发生了变化 从句的动词应该变为非谓语动词 这就是独立主格的关键!@!非谓语动词你懂吧 他在书桌旁坐了下来 他坐下当然是主动坐了 所以用doing形式（非谓语动词doing形式表示主动或者伴随发生的一件事情）
2.第二句话 是不是有个WHEN啊 那就是时间状语从句 When he seated himself at the desk,his mother began to tell him a story.
为什么用seated呢 因为主句began是begin的过去式啊 表明发生在过去 那根据句子意思 时态没有发生跳变 ‘他坐’也发生在过去 故用seated
总而言之 第一句seat变成了非谓语动词 第二句seat是实实在在的动词 只不过是过去式罢了
你确定第一句没抄错。
He seating himself at the desk, his mother began to tell him a story.这个句子没有【连词】来连接【从句】，【He seating...】属【独立主格结构】。
= When he seated himself at the desk, his mother began to tell him a story.此句有【连词<...
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He seating himself at the desk, his mother began to tell him a story.这个句子没有【连词】来连接【从句】，【He seating...】属【独立主格结构】。
= When he seated himself at the desk, his mother began to tell him a story.此句有【连词
when】引导【时间状语从句】。【从句】也是【句子】，就得具备【主谓宾】，所以用【seated】谓语动词。
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独立主格结构是没有介词 WHEN的，根据主动，被动，判断done还是doing。他坐下来 是主动，用seating。
后面一句是从句，当他坐下来，这个动作发生在过去（由began可得），所以用seated。