题目

----Do you know anything new about the incident? A working party _____to look into the problem.A. is set upB. has been set upC. had been set upD. is setting up

----Do you know anything new about the incident? A working party _____to look into the problem.

A. is set up

B. has been set up

C. had been set up

D. is setting up

题目解答

答案

B. has been set up

解析

本题考查现在完成时的被动语态的用法。解题关键在于：

  1. 语态判断：句子主语"A working party"与动词"set up"之间是被动关系，需用被动语态。
  2. 时态判断：问题中的"anything new"暗示事件是刚刚发生或对现在有影响，需用现在完成时强调动作的完成性。

语态分析

句子表达"工作组被设立"，动词需用被动语态形式：be + 过去分词。

时态分析

  • 现在完成时（have/has been + 过去分词）表示动作发生在过去且与现在有联系，符合"有新消息"的语境。
  • 排除其他时态：
    • 现在时（A）：表示一般性行为，不强调新进展。
    • 过去完成时（C）：需有明确的过去时间点。
    • 现在进行时（D）：表示动作正在发生，与"设立完成"矛盾。