题目内容
14."I want to go to Mars (火星),because it's a place that no one______to before,"said Carson.( )| A. | has gone | B. | has been | C. | was | D. | went |
分析 卡森说:"我想去火星,因为它是一个以前没有人去过地方."
解答 答案:B.根据语境no one 及before可推知a place 应为一个以前并且直到现在没人去过的地方,指对于现在所产生的影响,故定语从句的时态应为现在完成时态(基本结构:主语+have/has+动词的过去分词),has been to是指去过某地,已经回来了;has gone to是指去了某地,还没有回来,此句的意思在于强调火星是一个以前没人去过的地方.故而排除A.故选B.
点评 题考查现在完成时态的用法,现在完成时态是指已经完成的动作对现在造成影响或后果,或者过去某一时间开始并一直持续到现在的动作或状态.基本结构:主语+have/has+动词的过去分词.考生在此基础上结合语境可正确作答.
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