标题: OG12 30 [打印本页] 作者: lxsabrina 时间: 2011-11-20 09:19 标题: OG12 30 OG12 SC30 For members of the seventeenth-century Ashanti nation in Africa, animal-hide shields with wooden frames were essential items of military equipment, a method to protect warriors against enemy arrows and spears. (A) a method to protect (B) as a method protecting (C) protecting (D) as a protection of (E) to protect
答案C没有问题，但是E为什么错呢？to do 结构在这里不能表示目的吗？作者: jamesch 时间: 2011-11-20 16:52
逗号多余作者: liujian12 时间: 2012-7-15 18:27
就算去掉了逗号，to do紧接essential items of military equipment，逻辑上还是没有protecting好，现在分词protecting是说明固有的、一直存在的功能，而to do是说明“具体某次”的功能。