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    精英家教网 > 高中英语 > 题目详情
    14．The wide spread of super hybrid rice around the world ______ the lives of millions and millions of people suffering from hunger to a great level．（　　）
    A．has improvedB．is improving
    C．improvedD．has been improving

    分析 超级杂交水稻在世界范围内的广泛传播，使亿万遭受着饥饿的人们的生活提高到了很高的水平．

    解答 答案：A
    分析句意可知，此处表示过去的动作或状态对现在产生的影响或造成的后果，即：亿万遭受着饥饿的人们已经逐步摆脱饥饿的困扰，所以这里应使用现在完成时；故选A．

    点评 本题考查了现在完成时强调"影响性"的用法；做本题时，需要了解现在完成时除了强调动作的持续性以外，它还强调过去的动作对现在产生的影响以及造成的结果；例如：I have already seen the film．我已经看过这部电影了．（对现在的影响是：我知道电影的内容）；I have lost my key．我把钥匙弄丢了．（造成的结果是：我进不了门了．）

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