一道分词的题目.He was sitting there ,_______ in deep thought.A lost
3个回答
答案：A.
解释：
此类题目（用现在分词/过去分词做状语）有一个简单的诀窍如下：
1. 把做状语的分词和句子的主语（即分词的逻辑主语）连在一起,如果可以构成一个如下句型：
句子主语 + be + 分词 + 主句其他成分.
该句如果通顺,则选用某种分词.
2. 如上套入该句分别为：
He was(be) lost in deep thought.
He was(be) losing in deep thought.
楼主现在知道哪个答案正确了吧?
固定短语：be lost in...= lose oneself in...
3. 所以正确答案是A,而不是B.
如果要选用B losing（不是losting）为正确答案,则状语必须改成：losing himself in deep thought才对.
4. 当然也可以如此正常理
此题中的lose为及物动词,必须加him/himself做其直接宾语,所以He和lose之间其实是被动关系,而不是主动关系.
给个类似的题目给楼主看看：
(Devoted) to his career, he has little time to spend with his family.
= (Devoting) himself to his career, he has little time to spend with his family.
同样含有短语：devote oneself to...= be devoted to...,但是不能说：devote to...
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