题目

9 [单选题] They overcome all the纠错 difficulties and fulfilled the plan two months ahead of time, which was something we ( ). A. didn't expected B. haven't expected C. hadn't expected D. wouldn't expected

9 [单选题] They overcome all the纠错 difficulties and fulfilled the plan two months ahead of time, which was something we ( ).
A. didn't expected
B. haven't expected
C. hadn't expected
D. wouldn't expected

题目解答

答案

本题考察“过去完成时”的用法。主句“fulfilled”为过去式，从句需用“had + 过去分词”表“过去的过去”。A项“didn't expected”语法错误；B项“haven't”不符时态；D项“wouldn't expected”结构错误。C项“hadn't expected”正确，表“未预料到”。完整句子为：“which was something we hadn't expected.” 答案：C. hadn't expected

解析

本题主要考查过去完成时的用法。解题关键在于理解句子中动作发生的时间顺序：

  1. 主句中的动词fulfilled是一般过去时，表示“完成计划”这一动作发生在过去。
  2. 从句中的动作“未预料到”（expect）发生在主句动作之前，即“过去的过去”，因此需要用过去完成时（had + 过去分词）。
  3. 错误选项中，A、B、D均因时态或结构错误被排除。

时态分析

  • 主句：They fulfilled the plan（一般过去时），表示“完成计划”发生在过去。
  • 从句：which was something we ( ) 表示“未预料到”这一动作发生在“完成计划”之前，即“过去的过去”，需用过去完成时。

选项排除

  • A. didn't expected：错误。didn't后需接动词原形expect，且未体现“过去的过去”。
  • B. haven't expected：错误。现在完成时（haven't）表示动作延续到说话时刻，与主句过去时矛盾。
  • D. wouldn't expected：错误。wouldn't后需接动词原形expect，结构错误。
  • C. hadn't expected：正确。过去完成时准确表达“未预料到”这一动作发生在“完成计划”之前。