题目内容
12.Tina __________ as a physics teacher for over twenty years.( )| A. | has worked | B. | worked | C. | working | D. | works |
分析 Tina作为一名物理老师,已经工作了20多年了.
解答 答案:A 现在完成时基本用法之一:表示过去已经开始,持续到现在,而且还可能继续下去的动作或状态,常与since或for引导的时间状语连用.根据for over twenty years.可知Tina作为物理老师已经20年了,并很可能会持续下去,应该用现在完成时态.现在完成时态的构成:助动词have/has+过去分词,根据主语Tina,是第三人单数,所以应该用has,故选:A.
点评 本题主要考查动词时态,做此类题目要注意时间状语,注意句子所表达的含义,才能更好地判断.同时更应记清时态的构成形式.就本题而言,主要考查现在完成时态.
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