1) 有些动词用一般现在时代替完成时： N6 n: j7 u w/ m. A
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hear, tell, learn, write , understand, forget, know, find , say, remember. + b" ]6 h- U9 e" N
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I hear (= have heard) he will go to London. 外语学习网2 r/ R# T- x$ v8 V& m, X1 W. c
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I forget (=have forgotten) how old he is. - |1 {& K& o/ p8 w! v
2) 句型 " It is … since…"代替"It has been … since …" ' P% h+ q' `4 N5 S8 W+ p# e. I
3) It is (= has been) five years since we last met.
发表于 2012-8-14 10:21:44
