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.
相关推荐
1)书上说,报纸上说等。 The newspaper says that it's going to be cold tomorrow. 报纸上说明天会很冷的。 2) 叙述往事,使其生动。 Napoleon's army now advances and the great battle begi...[阅读全文]
1) 经常性或习惯性的动作,常与表示频腮度的时间状语连用。 时间状语: every, sometimes, at, on Sunday I leave home for school at 7 every morning. 2) 客观真理,客观存在,科学事实。 The...[阅读全文]