题目内容
15.Since China's reform has entered the deep water zone where tough challenges must be met,sure and firm steps will be taken to address the problems that __________over many years.( )A. | have built up | B. | has been built up | ||
C. | built up | D. | were built up |
分析 既然中国的改革已经进入了必须要面对严峻挑战的深水区,必须采取坚定的步骤来解决多年来逐渐形成的问题.
解答 答案是A.本题考查现在完成时;现在完成时表示"过去的动作对现在的影响或结果"或"过去的动作一直持续到现在",是与现在相联系的过去;本题中"over many years"是与现在相联系的段时间,build up 表示"逐渐积累",与problems之间是主动关系,故用现在完成时的主动语态,答案选A.
点评 对时态的选择,要在把握时态的基本用法的基础上,根据具体语境和题干中的时间推断时态,同时关注特殊的结构.
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