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题库 / OG2016-SC-34
Although schistosomiasis is not often fatal, it is so debilitating that it has become an economic drain on many developing countries.
it is so debilitating that it has become an economic
it is of such debilitation, it has become an economical
so debilitating is it as to become an economic
such is its debilitation, it becomes an economical
there is so much debilitation that it has become an economical
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AC选项比较也可以从不定式和从句的区别着手，用从句的话表示客观，状态不发生改变。用不定式强调主观动作改变了状态，此处前面的S的状态未发生改变
BCD选项其实都涉及到偷换最后一个形容词，导致不忠于原文；B选项缺连词；C选项so...as to be一般这样搭配，而且正确答案也很少出现在这样的表达内；D选项，缺连词；E选项，there be 表示某处自然存在某物，原文中没有不要加这点；A选项，虽然连词用的有点多，但是指代还是比较明确的，没有错误，只是表达不是很优，我们采取的原则是能改则改，不能改就勉强使用。
不定式和从句的区别，用从句的话表示客观，状态不发生改变。用不定式强调主观动作改变了状态，此处前面的S的状态未发生改变
economic not economical,排除BDE，在AC中选择
(C)选项中become体现的是action，而不是static state.
you don't use so ADJ as to VERB unless the VERBdescribes some sort of state/condition.
A选项中两个it都指代schistosomiasis （血吸虫病）