英语语法 句子成分分析

Question

1.The apple tree，swinging gently in the breeze，had a good crop of fruit.
在这里swing作伴随状语?had...作同位语?
2.the castle ，burnt down in 1485，was never rebuilt.那在这里两个都是同位语吗?
3.the noise of something being dragged on the floor could be heard clearly in the quiet night.为什么这里something后面不能直接用dragged呢?

Answer 1

1.The apple tree，swinging gently in the breeze，had a good crop of fruit.
在这里swing作伴随状语?had...是谓语动词
2.the castle ，burnt down in 1485，was never rebuilt.
burnt down in 1485，是定语，was never rebuilt.是谓语，被动语态
3.the noise of something being dragged on the floor could be heard clearly in the quiet night.是现在分词短语做定语，表示被动，用being表示进行