题目内容
6.Columbus ______ America in 1492.But he didn't explore it.( )| A. | looked for | B. | has looked for | C. | discovered |
分析 哥伦布于1492发现了美国,但他没有探索它.
解答 答案:C 考查时态.根据句意哥伦布于1492发现了美国,但他没有探索它.时态是一般过去时,要用动词discover.discover多指发现先前已经存在的东西,故答案为C.
点评 本题考查时态辨析.做此题目可根据句中的时间状语或句中的动词形式.也可根据语境,判断时态,从而选出正确的形式完成此类题.
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