All his time _______research on Chinese history, he has no time for outdoor acti
题型：不详难度：来源：
All his time _______research on Chinese history, he has no time for outdoor activities.
| A．devoted to do | B．devoted to doing
| C．devoting to doing | D．is devoted to doing |
|
答案
B |
解析
试题分析：考查独立主格结构。本句在两个部分之间缺少连词，说明逗号前面不是一个完整的句子，只是一个短语。All his time devoted to doing…相当于一个原因状语从句B Because all his time is devoted to doing…；句意：因为他所有的时间都花在了研究中国历史上，所以他没有时间参加户外活动。故B正确。
考点：
点评：当分词做状语的时候，如果分词的逻辑主语与句子主语没有关系，就在分词的前面直接加上逻辑主语，形成独立主格结构，该结构在作用上久相当于一个状语从句。 |
举一反三
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