OG12-40中targeted用法的疑惑

veralove3271

Dr. Tonegawa won the Nobel Prize for discovering
how the body can constantly change its genes to
fashion a seeming unlimited number of antibodies,
each specifically targeted at an invading microbe or
foreign substance.
(A) seeming unlimited number of antibodies,
each specifically targeted at
(B) seeming unlimited number of antibodies,
each targeted specifically to
(C) seeming unlimited number of antibodies,
all specifically targeted at
(D) seemingly unlimited number of antibodies,
all of them targeted specifically to
(E) seemingly unlimited number of antibodies,
each targeted specifically at

恩，答案是E、我的问题是这E里面each targeted specifically at中的target为什么使用被动呢，我觉得应该是targeting吧？请大家赐教

queenie924

这个考点其实是独立主格么……前面出现复数名词，后面是each+v-ed的说。

独立主格三种形式：
1)一般形式（独立部分与主句部分无太多关联）n.+n.，n.+V-ed/v-ing，n.+介词短语/形容词短语
2)with形式（与主句主语有紧密的逻辑关系）：with+宾语+宾补，如：with+n.+v-ed/v-ing/介词短语/形容词短语
3)each形式（必须前面有复数名词）： each+v-ed/v-ing，each+介词短语/形容词短语，each+n.+介词短语

veralove3271

感觉不像哎...那个“身体”也没有体现出来...我觉得应该是主动吧，抗体“

瞄准”病毒什么的...

hilanjingling

应该是被动吧。

antibody抗体，应该是被身体target到某处吧。。