转自G域的SC讨论

tongxun

Although schistosomiasis is not often fatal, IT IS SO DEBILITATING THAT IT HAS BECOME AN ECONOMIC drain on many developing countries.
(A)it is so debilitating that it has become an economic
(B)it is of such debilitation, it has become an economical
(C)so debilitating is it as to become an economic
(D)such is its debilitation, it becomes an economical
(E) there is so much debilitation that it has become an economical
划线部分为大写,C选项so...as to 似乎也没错呀，用倒装强调且符合系表结构和主语一致的要求，为何选A不选C？？？请高手赐教。先谢过！
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我的意见：时态错误。
欢迎讨论！[em13]

success2002

同意 SO AS TO 好象表示表将来动作，不敢确定

tongxun

so as to 的用法等今晚我回去查一下为是词典

wrobert

so as to 只能用于简单的系表结构。