标题: OG-12 SC 2 求证：SC中两句时态必须一致？ [打印本页] 作者: 若雪 时间: 2011-5-20 11:00 标题: OG-12 SC 2 求证：SC中两句时态必须一致？ Although a surge in retail sales have raised hopes that there is a recovery finally underway, many economists say that without a large amount of spending the recovery might not last. (A) have raised hopes that there is a recovery finally (B) raised hopes for there being a recovery finally (C) had raised hopes for a recovery finally being (D) has raised hopes that a recovery is finally (E) raised hopes for a recovery finally 划线部分主语是a surge，单数。In retail sales作a surge 的定语是企图另人以为主语是复数。立即排除A。其他选项的时态属于“百花齐放”型，要确认用哪一个，第一个工具：看有没有时间状语。没有。第二个工具：看另外一句的时态，因为两句的时态必须一致。Economists say, 一般现在时。立即得出答案为D。（有同学也许会说为什么用has raised，现在完成时，而不也用一般现在时呢？这个无法考证。但有一个前提必须得遵守，现在对现在，过去对过去。经常也有会前面一般现在时，后面现在完成时。）