题目内容
18.You _____ the exam,but you were too careless.( )A. | must have passed | B. | must pass | ||
C. | could have passed | D. | could pass |
分析 你本可能通过这次考试,但是你太粗心了.
解答 答案是C.本题考查"情态动词+have done"的结构.对过去的或已经发生的事件的说明往往用"情态动词+have done"的结构,由题干中的were可知事件已经发生,所以用"情态动词+have done"的结构,排除B和D;must have done表示推测,表示"肯定已经…";could have done表示"本可能已经…";根据句意,你"本可能"通过考试,故答案选择C.
点评 要在正确理解情态动词的基本含义的基础上,整体理解语境中的情感态度,做出合理的判断.
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