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.
og12 6 them的指代 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
D的主干是:because moisture +定语从句, raising the humidity within them这部分是修饰紧跟在前面的visitors的,而不是修饰because之前的结构. 句子第一层结构是解释因果关系,第二层意思才包含了 visitors的定语的信息(raising...).可以想象成树形结构.从结构上来看,raising只是描述visitors的,所以them更应该是指向visitors.
E的主干是:because moisture had raised the humidity level within them, them就在句子的主干里头,所以不容易被怀疑为是指代visitors.在这里,visitors反而成为了主干中主语moisture的定语exhaled by visitors中的次要信息了,不是树形结构的 同一层次
没想到抓抓也在看这个讨论帖。。。。。 看了半个小时才看懂。但是抓抓D选项的解释是不是跟之前引用的解释有点冲突呀,没看懂树形结构是什么…… 我想 d能不能这样理解:把becauseof和moisture that was exhaled by tourists raising the humidity within them 分开来看,后一句里面的主语是moisture,moisture[ that was exhaled (by tourists )]aising the humidity (within them)这里的by tourist和within them 同样做宾语,所以指代的是tourists。