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各种常用时态基本用法 — 现在完成进行时

作者：frog  文章来源：本站原创  点击数  更新时间：2010-4-6 21:28:42  文章录入：frog  责任编辑：frog

(1) 现在完成进行时表示与现在有联系的一个不久之前或刚刚结束的动作。例如：[文章来自:考试与评价 http://www.trgroup.com.cn/te/ 1^;tnJ.+40o0(h,hP]     You look very tired. Have you been working hard? 你看上去很累。是不是一直在努力工作？[文章来自:考试与评价 http://www.trgroup.com.cn/te/ !gY/s Tvs-f)[#f]     (2) 现在完成进行时表示某个动作仍在进行或刚刚停止。例如：[文章来自:考试与评价 http://www.trgroup.com.cn/te/ 'Ck2wTU= 4tfUZ.)]     It has been raining two hours = It began raining two hours ago and it is still raining. (仍在进行)[文章来自:考试与评价 http://www.trgroup.com.cn/te/ _=X?FV&P=9i)L]     Where have you been? I've been looking for you for at least 20 minutes. (刚刚停止)

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