由prep引发对OG的思考。。。

布布布布布丁

OG又出新问题了。。。
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

为什么as不对呢？我查过词典as有prep.形式，意思为“当作”

ericwilliam

错误其实不在as，而是在于items of military equipment不是method

布布布布布丁

错误其实不在as，而是在于items of military equipment不是method

-- by 会员 ericwilliam (2011/11/8 19:15:44)

这个我知道 可是OG10的解释就说In B and D, as is incorrect；OG12中D选项的解释是：Beginning the phrase with as is incorrect

vinbobo

。
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

OG的题目是很好的，解释你就选择性看就好了
这个题目
A 的问题是在于method是主语的同位语，但是与主语太远了
B as如果作为介词，跟在逗号后面，是做为副词属性修饰前面句子的动作，与句子逻辑主语发生一致，也就是(animal-hide shields) as a method protecting
  如此就出现问题了，animal-hide shields是tool，而不是method，使用它们才是Method。其次，当说到method一般用method of ，因为我们需要知道这个     method的内容，所以用of，用-ing形式修饰其实提供的信息很奇怪，而且不idiom
C 不说了
D 这里protection作为shield的同位语，逻辑上还不错，但是最好复数，而且表达不如C简洁
E 逗号后面跟不定式，基本上是十死无一生

布布布布布丁

。
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

OG的题目是很好的，解释你就选择性看就好了
这个题目
A 的问题是在于method是主语的同位语，但是与主语太远了
B as如果作为介词，跟在逗号后面，是做为副词属性修饰前面句子的动作，与句子逻辑主语发生一致，也就是(animal-hide shields) as a method protecting
  如此就出现问题了，animal-hide shields是tool，而不是method，使用它们才是Method。其次，当说到method一般用method of ，因为我们需要知道这个     method的内容，所以用of，用-ing形式修饰其实提供的信息很奇怪，而且不idiom
C 不说了
D 这里protection作为shield的同位语，逻辑上还不错，但是最好复数，而且表达不如C简洁
E 逗号后面跟不定式，基本上是十死无一生

-- by 会员 vinbobo (2011/11/8 19:41:08)

哦~！也就是说AS不是错误的关键点嘛~懂啦 解释得很清楚~谢谢~~