我觉得根本就没有什么extend要用现在时的问题,看一下所有选项,前面都是was,后面的都是extended,除了extending。也就是说这个句子在说一个过去的事情,估计现在这个greatest road system都不在了。所以不需要讨论时态问题。 再来b的问题,这里was and extended是平行的,over 2500 miles作为状语,放在was and extended中间勇逗号隔开,会产生歧义的,是修饰前面的分句was还是后面的分句extended?虽然好像都可以。 最后,e的extending最伴随状语, 是用来说明怎么个in length法,是这个road的特征,本来也不代表任何时态。不过说实话,我真分不清分词(现在分词,过去分词)做定语还是状语的情况。 比如 Many financial experts believe that policy makers at the Federal Reserve, now viewing the economy as balanced between moderate growth and low inflation, are almost certain to leave interest rates unchanged for the foreseeable future. A. Reserve, now viewing the economy as balanced between moderate growth and low inflation, are B. Reserve, now viewing the economy to be balanced between that of moderate growth and low inflation and are C. Reserve who, now viewing the economy as balanced between moderate growth and low inflation, are D. Reserve, who now view the economy to be balanced between that of moderate growth and low inflation, will be (A) E. Reserve, which now views the economy to be balanced between moderate growth and low inflation, is 说viewing做定语修饰policy makers好像也行,说它做状语修饰are certain也行吧?我真搞不清楚了。做题的时候一般就排除法,最后混淆选项就靠语感,,, |