问题
选择题
He devoted himself __________ to his research and got many achievements.
A．entirely
B．extremely
C．carefully
D．certainly
答案
答案：A
题目分析：考查副词：A. entirely 完整的，B. extremely非常的，C. carefully仔细的，D. certainly当然，句意是：他完全投入研究，并取得了很多成就。选A。
点评：副词辨析是常考题，要求考生平时多记忆多积累，根据具体语境进行选择。