高中英语单选——问题求助

Question

He didn't notice entering the room with his attention _____on his papers.
A。concentrated B.concentrating C.to concentrate D.having concentrated

为什么选A？是非谓语吗？作状语？

Answer 1

这里with his attention _____on his papers整个作伴随状语。其中his attention是宾语，_____on his papers做宾语补足语。
这道题考的是with的复合结构的用法，即：with+n+分词。分词可以是不定分词to do，现在分词和过去分词，所以先排除d。
现在分词与名词之间是主谓关系，比如：They started working with the machine running.“机器运转”主谓关系。
不定分词表示将来发生的动作，比如：With a lot of homework to do,Tom cann't go out to play.
过去分词与名词之间是动宾关系，“concentrate his attention ”集中注意力。所以这道题选A
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是非谓语吗？

追答

恩，分词都是非谓语。谓语是指动词原形和动词原形在各种时态下的变式

Answer 2

with his attention __concentrated___on his papers 是with加复合宾语结构作伴随状语，
concentrated与attention 是逻辑上的主谓关系。（His attention was concentrated on ...)
固定短语： sb+concentrate one's attention on sth某人把注意力集中到某事本回答被提问者采纳

Answer 3

是非谓语，表伴随

Answer 4

attention与concentrate之间是被动关系