prep176 关于时态问题

yunshishow

For at least two decades or more previous to when the Venetian artist Giovanni Battista Tiepolo died in 1770, he was the most admired painter in Italy.
A.    For at least two decades or more previous to when the Venetian artist Giovanni Battista Tiepolo died in 1770, he was
B.    For at least two decades before the Venetian artist Giovanni Battista Tiepolo died in 1770, he had been
C.    For at least two decades or more before the Venetian artist Giovanni Battista Tiepolo's dying in 1770, he had been
D.    When the Venetian artist Giovanni Battista Tiepolo died in 1770, for at least two decades previously he was  
E.    When the Venetian artist Giovanni Battista Tiepolo died in 1770, having been for at least two decades before that
答案B。想说的是B中的he had been用过去时是不是也可以的？感觉很多时候过去完成时都可以换成过去式。求教牛牛，在哪些情况下过去完成时是不能换成过去式的？

houhaibo528

这个的关键词在于for,for,since等是完成时的标志，所以是必须要用完成时的。
过去完成时是说过去的过去，在这道题了，previous to when...died in 1770,把过去之过去这种意思表达的很清楚了已经。
而一般过去时只是强调过去的动作，比如：i had breakfast at 5 o' clock this morning.
如果要强调过去动作对现在的影响，可以用现在完成时，比如：i've been to beijing.就是指，我之前去过北京，对现在（比如我现在了解北京）有影响。

For at least two decades or more previous to when the Venetian artist Giovanni Battista Tiepolo died in 1770, he was the most admired painter in Italy.
A.    For at least two decades or more previous to when the Venetian artist Giovanni Battista Tiepolo died in 1770, he was
B.    For at least two decades before the Venetian artist Giovanni Battista Tiepolo died in 1770, he had been
C.    For at least two decades or more before the Venetian artist Giovanni Battista Tiepolo's dying in 1770, he had been
D.    When the Venetian artist Giovanni Battista Tiepolo died in 1770, for at least two decades previously he was  
E.    When the Venetian artist Giovanni Battista Tiepolo died in 1770, having been for at least two decades before that
答案B。想说的是B中的he had been用过去时是不是也可以的？感觉很多时候过去完成时都可以换成过去式。求教牛牛，在哪些情况下过去完成时是不能换成过去式的？

-- by 会员 yunshishow (2011/9/13 13:08:10)