求教GMAT里的一道改错

问题描述:

求教GMAT里的一道改错
求教Based on the recent decline in enrollment,the admissions office decided to reevaluate its recruitment strategies这句话哪里错了.在Based on这里错了,为什么呢

这句话当中,based on the recent decline in enrollment 是状语.其中的非谓语动词based on必然有它的逻辑主语,就是主句当中的主语the admissions office.
而based on 既然用了-ed的形式,说明逻辑主语是承受base on这个动作的,那就意味着admissions office (招生办公室) 被 根据录取率下降,来重新评估招生策略.这就说不通了.
可以改为:
Considering the recent decline...the admissions office...considering由于用了ing的形式,逻辑主语可以主动发出consider这个动作,没有问题.
或者改为
Based on the recent decline in enrollment,the recruitment strategies should be reevaluated by the admissions office.
这里的逻辑主语变成了 recruitment strategies 它可以承受base on 这个动作,也没有问题.