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    • at last fireman have put out the big forest fire in California

    这句话是现在完成时吧？have put out（have done）对吗？请问为啥用现在完成时？现在完成时的定义是过去发生的动作对现在造成影响，我感觉这句话是很独立的一句话，“消防员终于扑灭了加利福尼亚的森林大火”这句话本身不涉及对现在造成什么影响啊？越详细越好，若能举例说明最好了！谢谢

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    推荐答案   2018-02-26
    你要是单独说----消防员终于扑灭了加利福尼亚的森林大火，肯定用过去式最好，不过，要结合上下文，未必是用过去式最好追问

    谢谢老师，我也这样想但我不能确定，那么再请教一下，如果以后我在使用的时候，我凭借什么来决定这个时候我该用现在完成时而不用过去式呢？谢谢

    追答

    时态的使用，一般都有上下文的，过去的对现在没有造成影响就用过去式。
    单独的句子，看时间，表示过去的 last....，ago之类的，肯定是过去式。

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    非常感谢！回答得太棒了！

    温馨提示：答案为网友推荐，仅供参考
    其他回答
    第1个回答  2018-02-26
    最后，消防员们扑灭了这场森林大火
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