请教一道prep里面的题

moontroy · 发表于 2013-9-24 08:25:55

Although beavers can still be found throughout the western United States, their number has declined
compared with the eighteenth century, when the abundance of beavers lured armies of European
trappers into the Rocky Mountain region to slaughter them for their pelts.
A. their number has declined compared with
B. their numbers have declined compared with
C. their numbers have declined since
D. their numbers have declined in comparison to those of
E. the number of them declined since

正确答案是C。了解其它选项分别错在哪里，但是正确选项要主语是复数their numbers，请问不应该是单数么？The number of beavers has declined since the 18th century.

多谢

vertex顶点 · 发表于 2013-9-24 09:25:33

你做题的思路有问题，their number和their numbers都可以，但这不是解题点。首先看A，compared with the eighteenth century比较的对象不同，拿number和日期比较错误，排除；B一样，比较对象错误；C since反映出了前面的have declined这个现在完成时，正确； D中in comparison to awkward的用法，并且those有指代前面beavers的歧义而不是指代numbers，排除；E中的since是现在完成时的标志词，用过去式declined错误；

由此可知完全可以说：their numbers。做句子改错一定不能钻牛角尖，多个思路，比较选项找考点，非划线处找解题点

moontroy · 发表于 2013-9-24 12:37:49

多谢。我就是想问这个正确答案their numbers是怎么可以的

number不是只有一个么，应该是单数啊，the number of beavers?

徜徉梦境 · 发表于 2013-11-6 19:15:31

请教C选项改变了原句意思，这样也可以吗？谢谢

zuifengsujiu · 发表于 2013-11-8 09:39:12

徜徉梦境发表于 2013-11-6 19:15
请教C选项改变了原句意思，这样也可以吗？谢谢

这个不算改变的太严重了..AB都比较对象错误啊亲..话说比较真是一个博大精深的东西，好好学

徜徉梦境 · 发表于 2013-11-8 14:52:25

zuifengsujiu 发表于 2013-11-8 09:39
这个不算改变的太严重了..AB都比较对象错误啊亲..话说比较真是一个博大精深的东西，好好学 ...

嗯嗯，这样表现很不错，摸摸

请教一道prep里面的题

RE: 请教一道prep里面的题

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