A. | can have studied | B. | should have studied | ||
C. | might have studied | D. | must have studied |
分析 --哦,伙计!你又没有通过信息技术考试.你本应该更努力.
--是的,你说得对.我会从现在开始努力.
解答 答案是B.本题考"查情态动词+have done"的结构.should have done表示"本应该做而实际上没有做",根据句意可知,"你本应该更努力",故选择A.can have done只能用在否定句和疑问句中表示推测;排除A;might have done表示"也许已经做了"或"本可以,而实际上没有",语义不符,排除;must have done表示"肯定已经…",不符语义.
点评 在掌握虚拟语气的规则的基础上,判断题干属于什么类型的虚拟,然后根据语境,选用恰当的动词形式表达虚拟.
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