GMAT备考，除了背背背，更重要的就是练练练！通过练习，巩固知识，熟练技巧，最终才能在GMAT考试中发挥出色，取得好成绩，所以练习的重要性不言而喻。因此，小编为大家精心准备了GMAT考试各类题型的练习题和答案解析，帮助大家每日一练，为考试做好准备。一起来看今天的题目。
今日练习题为语法题，题目如下
In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to visitors for cleaning and repair due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing and fungus was growing on the walls.
A due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing
B due to moisture that tourists had exhaled, thereby raising its humidity to such levels that salt from the stone would crystallize
C because tourists were exhaling moisture, which had raised the humidity within them to levels such that salt from the stone would crystallize
D because of moisture that was exhaled by tourists raising the humidity within them to levels so high as to make the salt from the stone crystallize
E because moisture exhaled by tourists had raised the humidity within them to such levels that salt from the stone was crystallizing
正确答案：
E
句式结构：
…were closed….because moisture had raised the humidity… to such levels that…
题目考点：
Because of 后只能加简单的名词结构，because of sb's doing 一定要改成because这种情况同样适用于due to， despite(in despite of)， as a result of
代词指代：
Such/so…that固定搭配。Such … so that搭配错误。
选项分析：
A. due to moisture无法表达closed for cleaning and repair的直接原因;用which引导非限定性定从不能表达出该有的意思;such…so that固定习语使用错误;its无所指代。
B. due to moisture无法表达closed for cleaning and repair的直接原因。thereby raising用法awkward;its无所指;such that + would(情态动词)是表达目的，逻辑含义错误;stone would crystallize和fungus was growing on the walls不平行。
C. tourists were exhaling moisture无法表达closed for cleaning and repair的直接原因;Which在GMAT里面不可以指代前面整个分句(至今没有一道官方题目有which指代前面整句);Such that + would(情态动词)是表达目的，逻辑含义错误;them指代了tourists错误;stone would crystallize和fungus was growing on the walls不平行。
D. because of moisture无法表达closed for cleaning and repair的直接原因;so … as to make使得与后面的fungus was growing on the walls不平行; that was exhaled没有必要补出that was，累赘。
E. Correct. humidity within them...tourists身体里面不可能包含有humidity，而且by tourists在从句的介宾短语里，是不会被指代的，所以them不会指代混乱。
补充说明：
根据逻辑含义本题可以迅速得出选项：
首先were closed to visitors for cleaning and repair的原因，只有一个，就是"潮气引发了什么"而使得它需要修理了，只有E表达了这个意思，其他选项，看前三个词，就可以排除。A,B,D表达的是，是因为"潮气"本身，使得他们要修。C表达的是，旅客们呼出潮气，所以他们要修，也是不对的。只有E，表达出了潮气引起了湿度上升。
