【摘要】：2013六级考试进入了最后的冲刺阶段，以下是精品学习网特为考生们整理了2013英语一般现在时和完成时的用法说明的内容。预祝考生们通过考试!
1) 有些动词用一般现在时代替完成时：
hear, tell, learn, write , understand, forget, know, find , say, remember.
I hear (= have heard) he will go to London.
I forget (=have forgotten) how old he is.
2) 句型 " It is … since…"代替"It has been … since …"
3) It is (= has been) five years since we last met.