题目内容
14.--Mike,can you tell us something about our new teacher?--Oh,sorry.I know nothing because I _____________ him before.( )
| A. | saw | B. | didn't see | C. | have seen | D. | haven't seen |
分析 -Mike,你能告诉我一些关于我们的新老师的事情吗?
-哦,对不起.我什么都不知道,因为我以前从来没见过他.
解答 答案:D.根据句意结合before可知,Mike以前从来没见过这个新老师,所以他不知道关于新老师的事情,强调对现在造成的影响或结果,因此这里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,否定式为:助动词have/has+not+过去分词.根据主语I,所以应该用haven't seen,.A是一般过去时;B是一般过去时的否定形式;C是现在完成时,但意思不对.故选D.
点评 本题考查动词时态,考查了现在完成时的有关知识.解答时注意现在完成时的构成形式:have/has+动词过去分词.它的否定式直接在have或has的后面加not.
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