单选题 He was ______ by the noise outside yesterday evening and could not concentrate on his study.
A. pecked B. oriented C. perturbed D. paddled

【正确答案】 C

【答案解析】[解析] 本句意思为“昨晚外面的噪音搅得他不得安宁，无法集中精神学习”。四个选项中只有perturbed“感到不安”符合句意，如：Mother was much perturbed by my illness．母亲为我的病甚感烦恼不安。其他选项pecked“啄食”；oriented“导向”；paddled“划桨，搅拌”都不正确。