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.
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
1.E选项中的to protect错误在于前面有个逗号,如果没有逗号是对的,但是细想想应该是V.....+to do---动作的目的是to protect,而前句只是一个shields,其本身是不能to protect的,只能说是“用shield to protect” 2.这里的protecting前面是系表结构shields were military equipment,那么就是修饰主语,给主语添加额外的补充信息,描述animal-hide shields的功能就是protecting。。。或者说补充说明这整个一句话的内容,记住是adverb modifier 3.关于主系表结构+, Ving——由于前面的主句中主要阐明了主语的一种属性:在这种情况下需要判断的是这个v-ing结构是否合理的阐明了前面句子成分的一种属性、状态、用途、目的等等,而就不要再硬性带入伴随状语或者是结果状语了。。。。
额。。。。。亲。。。逗号后面是不可以加to do这种不定式的,因为to do的功能和动词一样,但是亲有木有发现这里我们需要的是一个修饰成分,来修饰主语。。。。还有您可以想一下:A is B,to do这样用很奇特不是吗?Jim is a student,to sleep....这哪有logic呦。。。。。