题目内容

19．With the help of computers，people will find it easier to keep the traffic            smoothly．（　　）
A．to runB．runC．runningD．D、

分析 在计算机的帮助下，人们将发现保持交通顺畅运行会更容易．

解答 答案：C
联系语境，根据关键词keep并结合选项，可知这里应该用keep的固定表达keep doing sth去完成，意为一直做某事，在本句中的意思为使交通一直保持顺畅的运行中．所以此处应用run的动名词形式为running．故选C．

点评 此题考查动名词的用法．做此类题的关键是了解句子中涉及到的关键词的固定用法．作为本题是了解keep doing sth的用法，这样做起题来就简单多了．平时一定要多积累，才能厚积薄发．

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