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记得以前的语法是说做所有格的词不能用代词来指代,本题中很明显地与此相违背。句子前半句未划线部分有一个her,说明逗号后面一定有相应的“谁”来做主语。从而D与E应该是错的,我当时在ABC的比较中选了C。AB没有选是因为名词的discovery与动名词的documenting不是那么地平行,用其名词形式的documenation更好,而且也是更重要的是documenting前面有一个副词painstakingly修饰documenting,从而说明documenting在这里是作动词,而非与discovery并列的动名词。But unfortunately,给出的正确答案却是D。我认为D显然后面的两个名词并列没有问题,但是用contribution作主语合适吗?前半句中的her可以来指代作所有格的Leakey吗?
另一题:
Ozone, a special form of oxygen that screens out harmful ultraviolet rays, reaches high concentrations twelve miles above Earth, where it has long appeared that it was immune from human influence; we have now realized, though, that emissions of industrial chlorofluorocarbons deplete the ozone layer.
A. has long appeared that it was immune from
B. has long appeared to have been immune from
C. has long appeared as being immune to
D. had long appeared immune to
E. had long appeared that it was immune to
参考答案为D。我选了C。觉得D中的时态是不对的。
[此贴子已经被作者于2006-2-14 12:38:39编辑过] |