标题: OGTH13 39题 求助 [打印本页] 作者: 简单的豆 时间: 2013-1-19 11:25 标题: OGTH13 39题 求助 37.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 答案是A 想问下，A中两个IT分别指什么？我觉得第一个做形式主语，第二个指S 如果这样的话两个it指不同的东西那不就错了么？ 还有C选项 为什么 so ``` as to````为什么不对啊？但是我有做到别的题有so ```as to 这个结构啊！！求大神帮助！作者: 啃玉米的兔子 时间: 2013-1-19 12:13
A选项第一个是形式主语，所以it是没有先行词的，第二个it就是指代主语了。 C的so...as to不是结构不对，而是改变了句子的intend meaning，另外C用了倒装结构也比较awkward。（个人意见）作者: 简单的豆 时间: 2013-1-20 08:41
第二个明白了~但是第一个，两个IT的功能不同，那不就错了么？我记得我上XDF的时候老师说过代词在句子里要指同一个东西·······作者: 啃玉米的兔子 时间: 2013-1-20 12:22