The agent was about to sign his name to the document_______ , to our surprise, a
题型：不详难度：来源：
The agent was about to sign his name to the document_______ , to our surprise, a stranger broke in to prevent him.| A．while | B．when | C．as | D．until |
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答案
| B |
解析
试题分析：考查连词：be about to…可以和when…连用，表示“刚要做…这时…,”句意：代理刚要在文件上签名字，这时使我惊讶的是，一个陌生人闯进来阻止了他。A. while当…时候，表示一段时间，C. as 当…时候，表示两个动作同时发生，D. until直到，选B。
点评：连词的词义辨析要放在上下文的语境中进行，要注意上下文的语义的串联以及逻辑关系的推理，特别要注意一些连词和时间状语的固定搭配。When可以适用于句型：be doing…when…/be about to do …when…. |
举一反三
One Friday, we were packing to leave for a weekend away _____ my daughter heard cries for help.| A．after | B．while | C．since | D．when |
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A double-decker sleeper coach fell off Changjiang Bridge in Jingzhou. It was because it tried to turn ___________away from a motorcycle that it crashed killing 14 passengers.| A．merely | B．abruptly | C．exactly | D．cautiously |
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| ______ is often the case is that Tom doesn’t study hard and fails in passing an exam. |
| Having checked the doors were closed and ______ all the lights were off, the boy opened the door to his bedroom. |
| People in some countries waste water______ people in others don’t have enough to drink. |
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